Rayco Super Jr RG27, Super Jr RG35, Super Jr RG37 Operator, Service, Maintenance Manual

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RG27 / RG35 / RG37 Super Jr

OPERATOR  SERVICE  MAINTENANCE MANUAL

INDEX: OSMRG27/35/37-17

RG27/35/37 Operation • Service • Maintenance

Introduction

This manual is published by Rayco Manufacturing, Inc. for the beneﬁt of the users of Rayco products. Rayco Manufacturing, Inc. has made every effort to ensure that this manual is correct and up to date at the time of publication. However, due to continuous improvements, Rayco Manufacturing, Inc. reserves the right to make changes in the contents, at any time, without notice or obligation.

Each machine shipped contains operation, maintenance & parts manuals to familiarize the operator with the proper operating, lubricating and maintenance instructions. This helps to ensure the best possible performance and service from the machine. Read and understand all instructions before attempting to operate this machine. This manual should be

readily available for reference at all times. Additional copies of this manual may be purchased from Rayco.

This Rayco machine was designed and manufactured by Rayco Manufacturing, Inc., Wooster, Ohio. Due to continuous improvements, Rayco reserves the right to make changes in engineering, design and speciﬁcations, or discontinue manufacture, at any time, without notice or obligation.

Always have a record of the model numbers and serial numbers for your machine to specify when ordering parts. Record your machine model and serial numbers on page 4 for your personal records.

NOTICE:

Maintenance and Repairs should ONLY be performed by a trained specialists or qualified personel.

Please contact Rayco Mfg for a listing of approved maintenance facilities in your area.

RG27/35/37 Operation • Service • Maintenance

Table of Contents

TABLE OF CONTENTS

Forward 4

Safety 8

Operation 24

Maintenance 32

Speciﬁcations 44

Warranty 55

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RG27/35/37 Operation • Service • Maintenance

Foreword

Literature Information

The operators manual should be stored in the operator’s compartment in the literature holder storage area. Rayco provides a binder to hold the Operator Service Manual, Parts Manual, Engine Manual along with other component manuals.

These manuals contain safety information, operation instruction, transportation information, lubrication information and maintenance information.

Some photographs or illustrations in the publication show details of attachments that can be different from your machine. Guards and covers might have been removed for illustrative purposes. Continuing improvement may have caused changes to your machine which may not be included in this publication.

Continuing improvement and advancement of product design might have caused changes to your machine which are not included in this publication. Read, study and keep this manual with the machine.

Whenever a question arises regarding your machine, of this publication, please consult your Rayco dealer for the latest available information.

Safety

The safety section lists basic safety precautions. In addition, this section may include text and locations of warning signs and labels used on the machine.

Read and understand the basic precautions listed in the safety section before operating or performing lubrication, maintenance and repair on this machine.

Parts

Parts are readily found through illustrations with accompanying Rayco part numbers. The machine assembly is listed by basic groups to enable ease of ﬁnding parts.

Please consult your local Rayco Dealer or local Engine Manufacturer Dealer for obtaining engine parts and service

Operation

The operation section is a reference for the new operator and a refresher for the experienced operator. This section includes a discussion of gauges, switches, machine controls, attachment controls, transportation and towing information.

Photographs and illustrations guide the operator through correct procedures of checking, starting, operating and stopping the machine.

Operating techniques outlined in this publication are basic. Skill and techniques develop as the operator gains knowledge of the machine and its capabilities.

Maintenance

The maintenance section is a guide to equipment care. The Maintenance Interval Schedule lists the items to be maintained at a speciﬁc service interval. The Maintenance Interval Schedule lists the page number for the step-bystep instructions required to accomplish the scheduled maintenance procedure.

Maintenance Intervals

Use the service hour meter to determine servicing intervals. Calendar intervals shown (daily, weekly, monthly, etc.) can be used instead of service hour meter intervals if they provide more convenient servicing schedules and approximate the indicated service hour meter reading. Recommended service should always be performed at the interval that occurs ﬁrst.

Under extremely severe, dusty or wet operating conditions, more frequent lubrication than is speciﬁed in the maintenance intervals chart might be necessary.

Perform service on items at multiples of the original requirement. For example, at every 100 service hours, also service those items listed under every 50 service hours and every 10 service hours or daily.

CALIFORNIA

Proposition 65 Warning

Diesel engine exhaust and some of its constituents are known to the State of California to cause cancer, birth defects, and other reproductive harm.

Battery posts, terminals and related accessories contain lead and lead compounds. Wash hands after handling.

RG27/35/37 Operation • Service • Maintenance

Foreword

Certiﬁed Engine Maintenance

Attach a “Do Not Operate” warning tag or a similar warning tag to the start switch or to the controls before you service the equipment or before you repair the equipment.

Know the width of your equipment in order to maintain proper clearance with you operate the equipment near fences or near boundary obstacles.

Be aware of high voltage power lines and power cables that are buried. If the machine comes in contact with these hazards, serious injury or death may occur from electrocution.

Wear a hard hat, protective glasses, and other protective equipment, as required.

Do not wear loose clothing or jewelry that can snag on controls or on other parts of the equipment.

Make sure that all protective guards and all covers are secured in place on the equipment.

Keep the equipment free from foreign material. Remove debris, oil, tools, and other items from the deck, from walkways, and from steps.

Secure all loose items such as lunch boxes, tools, and other items that are not a part of the equipment.

Know the appropriate work site hand signals and the personnel that are authorized to give the hand signals. Accept hand signals from one person only.

Do not smoke when you service an air conditioner. Also, do not smoke if refrigerant gas may be present. Inhaling the fumes that are released from a ﬂame that contact air conditioner refrigerant can cause bodily harm or death. Inhaling gas from air conditioner refrigerant through a lighted cigarette can cause bodily harm or death.

Never put maintenance ﬂuids into glass containers. Drain all liquids into a suitable container.

Obey all local regulations for the disposal of liquids.

Use all cleaning solutions with care. Report all necessary repairs.

Do not allow unauthorized personnel on the equipment.

Unless you are instructed otherwise, perform maintenance with the equipment in the servicing position. Refer to Operation and Maintenance Manual for the procedure for placing the equipment in the servicing position.

When you perform maintenance above ground level, use appropriate devices such as ladders or man lift machines. If equipped, use the machine anchorage points and use approved fall arrest harnesses and lanyards.

Machine Description

The RG27/35 Series stump cutter is designed for your maximum beneﬁt for every dol lar spent. The machine is constructed for durability and easy maneuvering, for those hard to reach tree stumps and roots. Its 17” diameter cutting wheel with 18 Rayco Superteeth® is pow er ful ly driven through a electromagnetic clutch and a Gates Poly Chain® Belt with a 27 or 35 hp Briggs Vanguard™ engine at its source. Cutting boom motion and the self-propel drive are entirely hydraulic, with 2 speeds. The hydraulic controls each include self-centering ﬁngertip control levers.

The ma chine chassis features rectangular steel tubing and steel guard con struc tion, mount ed on extra grip ping deep tread tires. The operator beneﬁts from a swing-out steel control station which allows optimal views of the cutting action, all while being guarded by heavy rubber curtains.

The RG Series stump cutter has the unique ability to pass through a 36” gate under its own power. Other special features of the RG series include a slewing ring that is used to pivot the cutter boom, replaceable composite bushings on all cylinder ends, 10.4 cu. In/rev wheel drive motor, 6.5 gallon fuel tank, steel belt guards, and an easy access ignition switch on the engine.

Other options that have become available on the RG series are dual removable travel wheels for increased stability and travel traction, Command Cut®, and a blade for pushing chips back into place.

For further design information see the “Speciﬁcations” section of this Operator Manual.

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RG27/35/37 Operation • Service • Maintenance

Serial Number Location & Information

Serial Numbers Location

Whenever communicating with Rayco or your Rayco dealer, have your machine serial number handy, as it can help pinpoint most exactly what information is needed in caring for your machine.

Breakdown of the serial number

For Example:RG37 001 01 17 RG37 - Type of Rayco equipment you have 001 - Three digit for the number of produced 01 - Two digit month, 01 = Jan., 02 = Feb., etc... 17 - Two digit year, 17 = 2017, 18 = 2018, etc

It is attached to the machine at the location shown. For ready reference, record it in the boxes provided on the inside front cover of this manual.

For reference on communication regarding the engine, record its model and serial numbers also in the boxes provided on the inside front cover of this manual. See the Engine Operator Manual for assistance in locating the numbers on the engine.

RG27/35/37 =Type of Rayco Equipment 001= The three digit number of produced

Production Date; 01=2 digit month; 17= 2 digit year

RG27/35/37 Operation • Service • Maintenance

Serial Number Location & Information

Serial number is located as shown. Use the below table to record identiﬁcation numbers and dealer information.

Identiﬁcation Numbers

Model Number Serial Number Machine Engine

Implement

Dealer Information

Name

Address

Dealer Contact Phone Number Hours

Sales Parts Service

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RG27/35/37 Operation • Service • Maintenance

Safety

Important Safety Information

Most accidents that involve product operation, maintenance and repair are caused by failure to observe basic safety rules or precautions. An accident can often be avoided by recognizing potentially hazardous situations before an accident occurs. A person must be alert to potential hazards. This person should also have the necessary training, skills and tools to perform these functions properly.

Improper operation, lubrication, maintenance or repair of this product can be dangerous and could result in injury or death.

Do not operate or perform any lubrication, maintenance or repair on this product, until you have read and understood the operation, lubrication, maintenance and repair information.

Safety precautions and warnings are provided in this manual and on the product. If these hazard warnings are not heeded, bodily injury or death could occur to you or to other persons.

The hazards are identiﬁed by the “Safety Alert Symbol” and followed by a “Signal Word” such as “DANGER”, “WARNING” or “CAUTION”. The Safety Alert “WARNIN G” label is shown below.

Safety Warnings

To highlight speciﬁc safety information the following designations are provided to assist the reader.

This is the “Safety Alert” symbol. It is used

to ALERT you to the potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death.

Indicates an imminently hazardous situation which, if not avoided, could result in death or serious injury.

Indicates a potentially hazardous situation which, if not avoided, will result in death or serious injury.

Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury.

A message, either written or pictorial, follows to explain the hazard. Rayco cannot anticipate every possible circumstance

that might involve a potential hazard. The warnings in this publication and on the product are therefore not all inclusive. If you desire to make use of a tool, procedure, work method, or operating technique not speciﬁcally recommended by Rayco, you must use it only if you have accurately evaluated it and found that it threatens no one’s safety. You should also ensure that the product will not be damaged or made unsafe by the operation, lubrication, maintenance, or repair procedures that you choose.

The procedures described in this “Safety” section may not be fully explained here, but a more complete explanation is given in the “Operation”, or in the “Maintenance” section.

The information, speciﬁcations, and illustrations in this publication are on the basis of information that was available at the time that the publication was written. The speciﬁcations, torques, pressures, measurements, adjustments, illustrations, and other items can change at any time. These changes can affect the service that is given to the product. Obtain the complete and most current information before you start any job. Rayco dealers have the most current information available.

Rayco Manufacturing, Inc. is greatly concerned with the safety of the operator, as well as all in the vicinity of his work.

Rayco has provided shields, guards, safety decals and other important safety features to aid in using the machine properly. In order to further ensure your safety we ask that you properly operate and service your machine.

This machine is capable of amputating hands and feet and throwing objects.

Failure to observe safety instructions, improper operation, lubrication, maintenance, or repair of this product could result in severe injury or death.

Do not operate or perform any lubrication, maintenance, or repair on this product, until you have read, you understand, and you decide to do so in compliance with all of the operation, lubrication, maintenance, and troubleshooting information contained in these Operator and Parts Manuals and that contained in the Engine Operator Manual, which are included with this machine. Additional manuals are available from Rayco or your Rayco dealer.

When replacement parts are required for this product Rayco recommends using Rayco replacement parts or parts with equivalent speciﬁcations including, but not limited to, physical dimensions, type, strength and material.

Failure to heed this warning can lead to premature failures, product damage, personal injury of death.

General Hazard Information

• Read, understand and follow all instructions on the machine and in the manuals before attempting to operate. Keep all manuals in a safe place for future reference and for ordering replacement parts.

• Familiarize yourself with all controls in a safe environment before operation. Know how to stop the machine and disengage the controls quickly.

• Never allow minors to operate this machine.

• Never allow anyone who has not had proper instruction to operate this machine.

• Keep bystanders, children and pets away from the machine and work area.

• Never allow anyone to ride on this machine.

• Never transport cargo, tools or wood on this machine.

• Keep the operator zone and adjacent area clear for safe, secure footing.

• Use the machine in daylight or under good artiﬁcial lighting.

• Use this machine for its intended purpose only, deviation from the machines capabilities could damage the equipment and cause injury or death.

RG27/35/37 Operation • Service • Maintenance

Safety

Engine exhaust contains products of combustion which can be harmful to your health. Always start and operate the engine in a well ventilated area. If you are in an enclosed area, vent the exhaust to the outside.

Personal Protective Equipment

Head protection - must conform to ANSI Z89.1 and DO NOT wear under chin strapping while operating or within the operation area of the Horizontal Grinder.

Eye protection - must conform to ANSI Z87.1 and be the wrap around style. Always wear the eye protection when operating or working within the operational area of the machine.

Hearing Protection - Plug type ear protection or full ear coverage devices (muff type) shall be worn at all times when operating or within the operational area of the machine.

Gloves - When operating or handling brush within the operational area of the Horizontal Grinder, loose ﬁtting gloves are the only gloves that should be worn. DO NOT wear gauntlet or strapped gloves.

Clothing Protection - Clothes must be close ﬁtting, but not restrictive of movement. DO NOT wear loose ﬁtting clothes, jewelry or long dangling clothing; i.e. neckties, long belts or chains.

Hooded sweat shirts may be worn only if the hood is tightly drawn around the face with drawstrings tucked into the outer garment when not in use. If working near trafﬁc, wear reﬂective clothing.

Shoes - (Foot Protection)- Always over the ankle work boots with skid resistant soles.

Breathing Protection - When breathing protection is required the use of paper masks that can tear away if caught or entangled in material or machine must be worn.

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Flying Debris

Do not allow anyone to stand in front or directly behind the machine. Flying debris could be thrown past guards and

injure bystanders if they are in these areas.

RG27/35/37 Operation • Service • Maintenance

Safety

Pressurized Air and Water

Pressurized air and/or water can cause debris and/or hot water to be blown out. This could result in personal injury.

When pressurized air and/or pressurized water is used for cleaning, wear protective clothing, protective shoes, and eye protection. Eye protection includes goggles or a protective face shield.

The maximum air pressure for cleaning purposes must be reduced to 205 kPa (30 psi) when the nozzle is deadheaded and the nozzle is used with an effective chip deﬂector and personal protective equipment. The maximum water pressure for cleaning purposes must be below 275kPa (40 psi).

Never use compressed air for cleaning.

possible death. A pin hole leak can cause sever injury. If ﬂuid is injected into your skin you must get treatment immediately. Seek treatment from a doctor that is familiar with this type of injury.

Trapped Pressure

Pressure can be trapped in a hydraulic system. Releasing trapped pressure can cause sudden machine movement or attachment movement. Use caution if you disconnect hydraulic lines of ﬁttings. High pressure oil that is released can cause a hose to whip. High pressure oil that is released can cause oil to spray. Fluid penetration can cause serious

injury and possible death.

Fluid Penetration

Pressure can be trapped in the hydraulic circuit long after the engine has been stopped. The pressure can cause hydraulic ﬂuid or items such as pipe plugs to escape rapidly if the pressure is not relieved correctly.

Do not remove any hydraulic components or parts until pressure has been relieved or personal injury may occur. Do not disassemble any hydraulic components or parts until pressure has been relieved or personal injury may occur. Refer to the Service Manual for any procedures that

are required to relieve the hydraulic pressure

Always use a board or cardboard when you check for a leak.

Leaking ﬂuid that is under pressure can penetrate body tissue. Fluid penetration can cause serious injury and

Asbestos Information

Rayco recommends the use of only genuine Rayco replacement parts. Use the following guidelines when you handle any replacement parts that contain asbestos or when you handle asbestos debris.

Use caution. Avoid inhaling dust that might be generated when you handle components that contain asbestos ﬁbers.

Inhaling this dust can be hazardous to your health.

The components that may contain asbestos ﬁbers are brake pads, brake bands, lining material, clutch plates, and some gaskets. The asbestos that is used in these components is usually bound in a resin or sealed in some way. Normal handling is not hazardous unless airborne dust that contains asbestos is generated.

If dust that may contain asbestos is present, there are several guidelines that should be followed:

• Avoid brushing materials that contain asbestos.

• Avoid grinding materials that contain asbestos.

• Use a wet method in order to clean up asbestos material.

• A vacuum cleaner that is equipped with a high efﬁciency particulate air ﬁlter (HEPA) can also be used.

• Use exhaust ventilation on permanent machining jobs.

• Wear an approved respirator if there is no other way to control the dust.

• Comply with applicable rules and regulations for the work place, In the United States, refer to Occupational Safety and Health Administration (OSHA) requirements.

• Obey environmental regulations for the disposal of asbestos.

• Stay away from areas that might have asbestos particles in the air

Respiratory Protection

NOTICE

Dust masks and/or particulate respirators only protect against particles (e.g., dust). They do not protect against chemicals, gases or vapors, and are intended only for low hazard levels.

Rayco recommends the use of dust masks or respirators to be worn over the nose and mouth that protect the lungs from air-borne dust and irritants. When working in activities such as chipping brush, stump grinding, working near old wood or chip piles, non-toxic nuisance dusts can be harmful.

Dispose of Waste Properly

Improperly disposing of waste can threaten the environment. Potentially harmful ﬂuids should be disposed of according to local regulations.

Always use leak proof containers when you drain ﬂuids. Do not pour waste onto the ground, down a drain, or into any source of water.

• Tools that are suitable for collecting ﬂuids and equipment that is suitable for collecting ﬂuids

• Tools that are suitable for cont aining ﬂuids and equipment that is suitable for containing ﬂuids

Containing Fluid Spillage

Care must be taken in order to ensure the ﬂuids are contained during performance of inspection, maintenance, testing, adjusting and repair of the equipment. Prepare to collect the ﬂuid with suitable containers before opening any compartment or disassembling any component that contains ﬂuids.

RG27/35/37 Operation • Service • Maintenance

Safety

Obey all local regulations for the disposal of liquids.

Crushing & Cutting Prevention

Support the equipment properly before you perform any work or maintenance beneath that equipment. Do not depend on the hydraulic cylinders to hold up the equipment. Equipment can fall if a control is moved, or if a hydraulic line breaks.

Do not perform any work until you have read and followed the proper “Lock-Out / Tag-Out” procedures.

Do not work beneath the cab of the machine unless the cab is properly supported.

Unless you are instructed otherwise, never attempt adjustments while the machine is moving or while the engine is running.

Never jump across the starter solenoid terminals in order to start the engine. Unexpected machine movement could result.

Whenever there are equipment control linkages, the clearance in the linkage area will change with the movement of the equipment or the machine. Stay clear of areas that may have a sudden change in clearance with machine movement or equipment movement.

Avoid contact with the rotating feed wheel, cutter wheel and rotor.

Always shut-off the engine and wait for all moving parts, belts, fans, rotors, drums, cutting wheels (etc.) to come to a complete stop before opening access covers and/or guards.

Stay clear of all rotating and moving parts. A moving belt, pulley, sprocket and chain can suddenly pull a limb into them causing loss or severe injury.

If it is necessary to remove guards in order to perform maintenance, always install the guards after the maintenance is performed.

Keep objects away from moving fan blades. The fan blade will throw or cut objects.

Do not use a kinked wire cable or a frayed wire cable. Wear gloves when you handle wire cable.

When you strike a retainer pin with force, the retainer pin can ﬂy out. The loose retainer pin can injure personnel. Make sure that the area is clear of people when you strike a retainer pin. To avoid injury to your eyes, wear protective glasses when you strike a retainer pin.

If equipment is unhitched from the tow vehicle for operation, always block the wheels and support the tongue weight with blocking to prevent unintended movement. Do not use only the jack stand to support the tongue while in operation.

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RG27/35/37 Operation • Service • Maintenance

Burn Prevention

Do not touch any part of an operating engine. Allow the engine, radiator, exhaust and hydraulic reservoir to cool before any maintenance is performed. Relieve all pressure in the air system, oil system, lubrication system, fuel system, and/ or in the cooling system before any lines, ﬁttings or related items are disconnected.

In addition, avoid contact with other related hot engine parts such as exhaust manifolds, turbochargers and mufﬂers.

External exhaust parts become very hot during operation. Paper, cloth, and wooden materials could ignite if they come in contact with these parts.

Cooling system conditioner contains alkali. Alkali can cause personal injury. Do not allow alkali to contact the skin, the eyes or the mouth.

Oils

Hot oil and hot components can cause personal injury. Do not allow hot oil to contact the skin. Also, do not allow hot components to contact the skin.

Remove the hydraulic tank ﬁller cap only after the engine

has been stopped. The ﬁller cap must be cool enough to touch with a bare hand. Follow the standard procedure in this manual in order to remove the hydraulic tank ﬁller cap.

Batteries

Electrolyte is an acid. Electrolyte can cause personal injury. Do not allow electrolyte to contact the skin or the eyes. Always wear protective glasses for servicing batteries. Wash hands after touching the batteries and connectors. Use of gloves is recommended.

Coolant

When the engine is at operating temperature, the engine coolant is hot. The coolant is also under pressure. The radiator and all lines to the heaters or to the engine contain hot coolant.

Any contact with hot coolant or with steam can cause severe burns. Allow cooling system components to cool before the cooling system is drained.

Check the coolant level only after the engine has been stopped.

Ensure that the ﬁller cap is cool before removing the ﬁller cap. The ﬁller cap must be cool enough to touch with a bare hand. Remove the ﬁller cap slowly in order to relieve pressure.

Fire & Explosion Prevention

All fuels, most lubricants, and some coolant mixtures are ﬂammable.

Flammable ﬂuids that are leaking or spilled onto hot surfaces or onto electrical components can cause a ﬁre. Fire may cause personal injury and property damage.

Remove all ﬂammable materials such as fuel, oil, and debris from the machine. Do not allow any ﬂammable materials to accumulate on the machine. Serious personal injury can occur when fuel or oil is spilled on yourself or your clothes, which can ignite.

Store fuels and lubricants in properly marked containers away from unauthorized persons. Store oily rags and any ﬂammable materials in protective containers. Do not smoke in areas that are used for storing ﬂammable materials.

Do not operate the machine near any ﬂame.

Extinguish all cigarettes, cigars, pipes and other sources of ignition.

RG27/35/37 Operation • Service • Maintenance

Exhaust shields (if equipped) protect hot exhaust components from oil spray or fuel spray in case of a break in a line, in a hose, or in a seal. Exhaust shields must be installed correctly.

Do not weld on lines or on tanks that contain ﬂammable ﬂuids. Do not ﬂame cut lines or tanks that contain ﬂammable ﬂuid. Clean any such lines or tanks thoroughly with a nonﬂammable solvent prior to welding or ﬂame cutting.

Check all electrical wires daily. Repair any wires that are loose or frayed before you operate the machine. Clean all electrical connections and tighten all electrical connections.

Dust that is generated from repairing nonmetallic hoods or non metallic fenders can be ﬂammable and/or explosive. Repair such components in a well ventilated area away from open ﬂames or sparks.

Inspect all lines and hoses for wear or for deterioration. The hoses must be properly routed. The lines and the hoses must have adequate support and secure clamps. Tighten all connections to the recommended torque. Leaks can cause ﬁres.

Use caution when you are refueling a machine. Do not smoke while you are refueling a machine. Do not refuel a machine near open ﬂames or sparks. Always stop the engine before refueling. Fill the fuel tank outdoors.

Gases from a battery can explode. Keep any open ﬂames or sparks away from the top of a battery. Do not smoke in battery charging areas.

Never check the battery charge by placing a metal object across the terminal posts. Use a voltmeter or a hydrometer.

Improper jumper cable connections can cause an explosion that can result in injury. Refer to the Operation Section of this manual for speciﬁc instructions.

Do not charge a frozen battery. This may cause an explosion.

Fire Extinguisher

Make sure that a ﬁre extinguisher is available. Be familiar with the operation of the ﬁre extinguisher. Inspect the ﬁre extinguisher and service the ﬁre extinguisher regularly. Obey the recommendations on the instruction plate.

Fire Extinguisher Location

Make sure that a ﬁre extinguisher is on the machine. Make sure that you are familiar with the operation of the ﬁre extinguisher. Inspect the ﬁre extinguisher and service the ﬁre extinguisher. Obey the recommendations on the instruction plate.

Mount the ﬁre extinguisher in an easily accessible place on the machine, for crawlers mount on the left side of the cab behind the seat. Consult your Rayco dealer for the proper procedure of mounting the ﬁre extinguisher.

Ether Starting Fluid

Ether is ﬂammable and poisonous.

Use ether in well ventilated areas. Do not smoke while you are replacing an ether cylinder or while you are using an ether spray.

Do not store ether cylinders in living areas or in the operator compartment of a machine. Do not store ether cylinders in direct sunlight or in temperatures above 49 °C (120 °F). Keep ether cylinders away from open ﬂames or sparks.

Dispose of used ether cylinders properly. Do not puncture an ether cylinder. Keep ether cylinders away from unauthorized personnel.

Do not spray ether into an engine if the machine is equipped with a thermal starting aid for cold weather starting

Lines, Tubes and Hoses

Do not bend high pressure lines. Do not strike high pressure lines. Do not install any lines that are bent or damaged.

Repair any lines that are loose or damaged. Leaks can cause ﬁres. Consult your Rayco dealer for repair or for replacement parts.

Check lines, tubes and hoses carefully. Do not use your bare hand to check for leaks. Use a board or cardboard to check for leaks. Tighten all connections to the recommended torque.

Replace the parts if any of the following conditions are present:

• End ﬁttings are damaged or leaking

• Outer coverings are chafed or cut.

• Wires are exposed.

• Outer coverings are ballooning.

• Flexible part of the hoses are kinked.

• Outer covers have embedded armoring.

• End ﬁttings are displaced. Make sure that all clamps, guards, and heat shields are installed correctly. During

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RG27/35/37 Operation • Service • Maintenance

Safety

Before Operation

NOTICE

This machine is to be utilized in an up/down gradient (not across an angle).

Safety information is available in English for this machine. A list of some of the material is available in the Operation and Maintenance Manual, “Reference Material”. Consult your Rayco dealer in order to obtain copies of the material. The information should be reviewed by every person that operates the machine.

Clear all personnel from the machine and from the area.

Clear all obstacles from the path of the machine. Beware of hazards such as wires, ditches, etc.

Make sure that all windows are clean. Secure all doors in the closed position. Secure the windows in the open position or in the shut position.

Call 811 Before You Dig. One free, easy call gets your utility lines marked and helps protect you from injury and expense. Know whats below, before you dig. Go to www.call811.com for more details.

Guards (Operator Protection)

There are different types of guards that are used to protect the operator. The machine and the machine application determines the type of guard that should be used.

A daily inspection of the guards is required in order to check for structures that are bent, cracked or loose. Never operate a machine with a damaged structure.

The operator becomes exposed to a hazardous situation if the machine is used improperly or if poor operating techniques are used. This situation can occur even though a machine is equipment with an appropriate protective guard.

Other Guards (If Equipped)

Protection from ﬂying object and/or falling objects is required for special applications. Logging applications and demolition applications are two examples that require special protection.

A front guard needs to be installed when a work tool that creates ﬂying objects is used. Mesh front guards that are approved by Rayco or polycarbonate front guards that are approved by Rayco are available for machines with a cab or an open canopy. On machines that are equipped with cabs, the windshield should also be closed. Safety glasses are recommended when ﬂying hazards exist for machines with cabs and machines with open canopies.

If the work material extends above the cab, top guards and front guards should be used.

Additional guards may be required for speciﬁc applications or work tools. The Operation and Maintenance Manual for your machine or your work tool will provide speciﬁc requirements for the guards. Consult your Rayco dealer for additional information.

Precautions for Welding on FRAME with ENGINE/MACHINE Electronic Control Unit (ECU)

Important: ALWAYS disconnect Electronic Control Unit (ECU) connectors, battery and engine control system-to-machine ground before welding on engine or machine.

High currents or electrostatic discharge in electronic components from welding may cause permanent damage

Safety Decals

The safety decals located on this machine contain useful and important information which will help you to operate your machine safely. The complete decal kit and location of each decal is given in the “Parts” manual. For your protection, familiarize yourself with each label until you completely understand the warning intended. Do not violate any such warnings!

Keep all decals in place and in good condition:

• Use soap and water to keep decals clean. DO NOT use mineral spirits, abrasive cleaners or other similar cleaners which will damage the decals.

• Replace any damaged or missing decals. Before attaching decals, the surface temperature of the metal must be at least 40 degrees. The metal should also be clean and dry before attaching the decal.

• If a machine component to which a decal is attached is replaced, be sure to replace the decal as well.

• Replacement decals may be purchased from Rayco Mfg or your Rayco dealer.

Visibility Information

Before you start the machine, perform a walk-around inspection in order to ensure that there are no hazards around the machine.

While the machine is in operation, constantly survey the area around the machine in order to identify potential hazards as hazards become visible around the machine.

It may not be possible to provide direct visibility on large machines to all areas around the machine. Appropriate job site organization is required in order to minimize hazards that are caused by restricted visibility. Job site organization is a collection of rules and procedures that coordinates machines

and people that work together in the same area. Examples of job site organization include the following:

• Safety instructions

• Controlled patterns of machine movement and vehicle movement

• Workers that direct trafﬁc to move when it is safe

NOTICE

The intended use(s) of this machine e.g. Outdoor use only, Trained Operators only.

• Restricted areas

• Operator training

• Warning symbols or warning signs on machines or on vehicles

• A system of communication

• Communication between workers and operators prior to approaching the machine

Modiﬁcations of the machine conﬁguration by the user that result in a restriction of visibility shall be evaluated.

Before Starting Engine

Start the engine only from the operator compartment. Never short across the starter terminate or across the batteries. Shorting could damage the electrical system by bypassing the engine neutral start system.

Before you start the engine and before you move the machine, make sure that no one is underneath the machine, around the machine, or on the machine. Make sure that the area is free of personnel.

Engine Starting

If a warning tag is attached to the start switch or to the controls, do not start the engine. Also, do not move any controls.

Move all hydraulic controls to the NEUTRAL position before you start the engine.

Diesel engine exhaust contains products of combustion which can be harmful to your health. Always start the engine in a well ventilated area. Always operate the engine in a well ventilated area. If you are in an enclosed area, vent the exhaust to the outside.

Operation

Only operate the machine controls when the engine is running. Do not leave the operators station while machine is running unless equipped with a remote.

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Before you move the machine, you must be certain that no one will be endangered.

While you operate the machine and the work tool slowly in an open area, check for proper operation of all controls and all protective devices.

Do not allow riders on the machine.

Note any needed repairs during machine operation. Report any needed repairs to certiﬁed service technician.

Use only Rayco Approved Work Tools on this machine. Obey all the lift restrictions. Refer to Operation and Maintenance Manual, “Rayco Approved Work Tools” for the approved work tools and the lift restriction information.

Do not go close to the edge of a cliff, an excavation, or an overhang.

If the machine begins to sideslip downward on a grade, immediately turn the machine downhill.

Avoid any conditions that can lead to tipping the machine. The machine can tip when you work on hills, on banks and on slopes. Also, the machine can tip when you cross ditches, ridges or other unexpected obstacles.

Avoid operating the machine across the slope. When possible, operate the machine up the slopes and down the slopes.

Maintain control of the machine. Do not overload the machine beyond the machine capacity.

Never straddle a wire cable. Never allow personnel to straddle a wire cable.

Know the maximum dimensions of your machine.

Observe all applicable local government regulations when you use this machine.

All personnel using this Machine must be trained in the operation, safety and maintenance repair procedures. Careless use of this Equipment could result in serious injury or even death.

ALL PROCED URES I N THE SAFETY AND OPE RATION SECTIONS OF THIS MANUAL MUST BE READ AND UND ERSTOOD BEFORE STARTING THIS MACHI NE.

• All operators must be wearing the proper Personal Protective Equipment before attempting to start and operate this machine.

• Do not allow children or other spectators to standby and watch the machine in operation.

• Familiarize yourself with all of the controls in a safe environment before starting to work with this machine.

• Always have more than one person at the job site. If an accident occurs, someone is there to assist or obtain help.

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Safety

• Always operate this machine with all safety equipment in place and working. Make sure all controls are properly adjusted for safe operation.

• Do not change the engine governor settings or over speed the engine. The governor controls the maximum safe operating speed of the engine

• Never leave this machine unattended with the engine running.

• Use only your hand to operate the controls. Never use a foot, knee, rope or any extension device.

• Never hand-feed this machine for any reason.

• Contact with moving parts, belts or rotating cutter wheels can kill, injure or dismember.

• Turn off engine and wait for all movement to stop before working on this machine. Lock-out/Tag Out all controls.

• If equipped, the Emergency Stop buttons must be operating properly. These should each be checked and veriﬁed to shut down the engine by the operator prior to performing any work.

• CAUTION! FLYI NG DEB RIS! NEVE R stand or allow anyone else to be directly in front of machine.

• Material being discharged from machine can cause severe injury, blindness or death.

• Always operate this machine from the operator area. Never stand directly in front of machine as ﬂying objects

NOTICE

This machine is to be utilized in an up/down gradient (not across an angle).

could be thrown during operation.

Slope Operation

Machines that are operating safely in various applications depend on these criteria: the machine model, conﬁguration, machine maintenance, operating speed of the machine, conditions of the terrain, ﬂuid levels, and tire inﬂation pressures. The most important criteria are the skill and judgment of the operator.

A well trained operator that follows the instructions in the Operation and Maintenance Manual has the greatest impact on stability. Operator training provides a person with the following abilities: observation of working and environmental conditions, feel for the machine, identiﬁcation

of potential hazards, and operating the machine safely by making appropriate decisions.

When you work on side hills and when you work on slopes, consider the following important points:

• Speed of travel – At higher speeds, forces of inertia tend to make the machine less stable.

• Roughness of terrain or surface – The machine may be less stable with uneven terrain.

• Direction of travel – Avoid operation the machine across the slope. When possible, operate the machine up the slopes and operate the machine down the slopes.

• Place the heaviest end of the machine uphill when you are working on an incline.

• Mounted equipment – Balance of the machine may be impeded by the following components: equipment that is mounted on the machine, machine conﬁguration, weights, and counterweights.

• Nature of surface – Ground that has been newly ﬁlled with earth may collapse from the weight of the machine.

• Surface material – Rocks and moisture of the surface material may drastically affect the machine’s traction and machine’s stability. Rocky surfaces may promote side slipping of the machine.

• Slippage due to excessive loads – This may cause downhill tracks or downhill tires to dig into the ground, which will increase the angle of the machine.

• Width of tracks or tires – Narrower tracks or narrower tires further increase the digging into the ground which causes the machine to be less stable.

• Implements attached to the machine hitch or drawbar – This may decrease the weight on the uphill tracks. This may also decrease the weight on the uphill tires. The decreased weight will cause the machine to be less stable.

• Height of machine working load. When the working loads are in higher positions, machine stability is reduced.

• Operated equipment – Be aware of performance features of the equipment in operation and the effects on machine stability.

• Operating techniques – Keep all attachments or pulled loads low to the ground for optimum stability.

• Machine systems have limitations on slopes – Slopes can affect the proper function and operation of the various machine systems. These machine systems are needed for machine control on slopes.

• Note: Safe operation on steep slopes may require special machine maintenance. Excellent skill of the operator and proper equipment for speciﬁc applications are also required. Consult the Operation and Maintenance Manual sections for the proper ﬂuid level requirements and intended machine use.

Work Tool options - Attachments

Only use work tools that are approved by Rayco for use on Rayco machines. Refer to the Operation and Maintenance Manual, Rayco options.

If you are in doubt about the compatibility of a particular work tool with your machine, consult your Rayco dealer.

Make sure that all necessary guarding is in place on the host machine and on the work tool.

Always wear protective glasses. Always wear the protective equipment that is recommended in the work tool’s operation manual. Wear any other protective equipment that is required for the operating environment.

To prevent personnel from being struck by ﬂying objects, ensure that all personnel are out of the work area. While you are performing any maintenance, any testing, or any adjustments to the machine, stay clear of the following areas: cutting edges, pinching surfaces, and crushing surfaces.

Equipment Lowering with Engine Stopped

Before lowering any equipment with the engine stopped, clear the area around the equipment of all personnel. The procedure to use will vary with the type of equipment to be lowered. Keep in mind this system use a high pressure ﬂuid to raise or lower equipment. The procedure will cause high pressure hydraulic oil to be released in order to lower the equipment. Wear appropriate personal protective equipment and follow the established procedure in the Operation and Maintenance Manual.

LOCK-Out / Tag-Out Guidelines

Always practice lock out tag out procedures when working on this machine.

Locking and tagging out equipment safeguards those working on the equipment from being injured by its unexpected energized or releasing stored energy. This section summarizes the applicable requirements for lockout/ tag out procedures, and its intent to comply with OSHA regulations.

Lock Out Procedure

• All affected persons are to be notiﬁed that the equipment will be off and locked out.

• All energy sources for the equipment should be identiﬁed.

• The equipment shall be shut off or otherwise deenergized, being careful to de-energize all energy sources. This includes all valves, switches, breakers, or other controls that supplies energy to the equipment. In case of mechanical energy, a block may be used to stop the release of stored energy.

RG27/35/37 Operation • Service • Maintenance

Safety

• A lock is to be placed on each energy source disconnect or energy release block.

1. The lock is to be placed directly on the equipment if provided with an integral locking device.

2. If there is no integral lockout device on the equipment, securely attach an independently manufactured lockout device on the equipment and then place the lock on the lockout device.

3. If none of the above are possible, use the tag out procedure.

• A tag to be secured to the lock indicating that the equipment is not to be energized and who owns the lock.

• It should be safely tested and veriﬁed that the lockout does prevent the release of energy.

Tag Out Procedure

• This procedure is to be used only if it is not reasonable to use the lockout procedure.

• All affected persons are to be notiﬁed that the equipment will be shut off and tagged out.

• All energy sources for the equipment should be identiﬁed.

• The equipment shall be shut off or otherwise deenergized, being careful to de-energize all energy sources. This includes all valves, switches, breakers, or other controls that supplies energy to the equipment. in case of mechanical energy, a block may be used to stop the release of stored energy.

• Securely place a tag on each energy source disconnect or energy release block.

Before the removal of a lockout/tag out the following must be completed:

1. Removal of all non essential items.

2. Check to see that all workers and bystanders are located in a safe position.

3. Inform all affected personnel.

• If a worker who applied the lockout/tag out is not present, and his supervisor deems it necessary to energize the equipment, the following must be done by the supervisor.

1. Make all reasonable effort to contact the worker who placed the tag.

2. Determine the purpose of the lockout/tag out, and whether it is safe to operate the equipment in its current condition.

3. Remove all non essential items.

4. Inform all affected personnel.

5. Check to see that all affected persons are located in a safe position.

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4. Move the hydraulic controls to the NEUTRAL position.

5. Turn the engine start switch key to OFF position and remove the key.

6. Disconnect the operator restraint devices (if equipped) and exit the machine.

While Servicing and Performing Maintenance on the Machine

• ALWAYS Block the wheels to prevent unintended movement.

• Adhere to your LOCK-OUT/TAG-OUT procedure when performing maintenance or repairs to this machine. Locking and tagging out equipment safeguards those working on equipment from being injured by its unexpected energized or releasing stored energy.

• To prevent ﬁres, clean debris and chaff from the engine and mufﬂer areas.

• Periodically check that all nuts and bolts, hose clamps, and hydraulic ﬁttings are tight.

• When removing the fuel cap, unscrew it slowly, and hold it ﬁrmly. The cap may otherwise be thrown due to pressure buildup caused by an increase in temperature.

• For your safety, repair or replace all damaged or worn parts immediately. Replacement parts which are authorized by Rayco are the only parts which should be used for repair or replacement on this machine.

• Altering this equipment, or using this equipment in such a way as to circumvent its design capabilities and capacities, could result in serious injury or fatality and WILL VOID THE WARRANTY.

• Do not alter this machine in any manner. Alterations such as attaching a rope to the control bar may result in personal injury or death.

• NEVER remove the cap from the hydraulic tank or reservoir while the machine is running. Hot oil under pressure will cause injury.

• Relieve hydraulic system pressure before repairing or adjusting ﬁttings, hoses, tubing, or other system components.

Pre-Transportation Checks

• Never allow inexperienced drivers to tow the machine.

• When towing, always make sure the tow vehicle ball hitch and trailer/machine hitch coupler are the correct matching size and style.

• Always make sure the tow vehicle and the trailer/machine are on level ground and the wheels are chocked before connecting or disconnecting.

• Make sure the tow vehicle is of adequate size and has the towing capacity to safely tow the combined weight of trailer/machine.

• Never tow a machine while it is running.

• Towing will affect handling, allow for extra stopping distances. Refer to U-Haul’s “Safe Trailering” Driver Education Program that is available at this website: http:// www.uhaul.com/guide/index.aspx?equipment=towingautotransport

• Make sure the towing eye is at the proper height so the machine tows level when traveling. A proper amount of tongue weight is required to allow the machine to tow properly. Too little tongue weight will result in wandering, ﬁsh-tailing, and/or axle damage.

NOTE: Use caution when backing up. The rear of the RG74T-R may not be visible from the towing vehicle. It is recommended to use a spotter outside the vehicle.

• Be aware of the length of the EQUIPMENT while turning, parking, crossing intersections, and in all driving situations. When arriving at the work site, do not set up the EQUIPMENT under a tree that is being pruned, cut, or worked on.

Important Towing Information

PREVE NT WHIPP ING by properly loading the auto transport trailer. Load the heaviest end (engine end) of the vehicle-in-tow to the FRONT of the trailer. Loading heavier in the rear can cause the tow vehicle and transport trailer “combination” to begin WHIP PING, which is violent and uncontrollable sway.

SIDE to SIDE MOTION (SWAY) THAT BEGINS as you reach a certain speed, will likely become WHIPPING at higher speeds. If you notice sway beginning SLOW DOWN IMMEDIATELY by letting off the gas pedal. Then stop to reload the vehicle-in-tow heaviest end forward as soon as possible, and remove any cargo from the vehicle-in-tow (vehicle carried on trailer).

IF WHIPPING or SWAY OCCURS, DO NOT steer. DO NOT apply your brakes and NEVER speed up. Let off the gas pedal and hold the steering wheel in a straight-ahead position.

A “combination disturbance” is improper handling, whipping, sway, over-steering or other deviation of the tow vehicle or trailer from their intended path, due to one or more causes (improper loading, steering inputs, excessive speed, cross winds, passing vehicles, rough roads, etc). IF A

COMB INATION DISTUR BANCE OCCU RS, DO NOT steer or brake. Steering or braking during a disturbance can cause a loss of control or crash.

If a WHEEL GOES OFF THE PAVED ROADWAY, DO

NOT steer sharply and DO NOT brake. Let off the gas pedal and slow down below 25 mph. Then steer gradually back onto the roadway. Proceed with caution entering trafﬁc.

Loading Your Combination

ALWAYS LOAD THE MACHINE WITH THE OPERATOR

CONTROLS IN THE OPE RATING POSITION

OR WITH REMOTE CONTROL IF EQUIPPED. THE CONTROLS CAN EASILY BE OPERATED WHILE WALKING ALONG SIDE THE TRAILER

DURI NG LOADING. LOADING THE RG74TR WITH

THE OPERATOR CONTROLS LOCKED IN TH E

TRANSPORT POSITION COULD CAUSE SERIOUS

INJURY OR DEATH CAUSING THE MACHINE TO

CRUSH THE OPERATOR.

NEVER load cargo inside the vehicle-in-tow or on the trailer. Cargo inside the vehicle-in tow can cause sway or WHIPPING.

NEVER overload your tow vehicle. Do not exceed the Gross Vehicle Weight Rating (GVWR) and the Gross Axle Weight Ratings (GAWR), which are posted on a label inside the driver’s door opening.

Make sure the trailer is securely attached to the tow vehicle hitch before loading and unloading.

Keep children and others at least 25 feet away during loading and unloading.

Slow Down When Towing

AVOID CRASHES by slowing down. Reduce your speed from what you would normally drive without a trailer under similar road conditions. The maximum speed is 45 mph when towing a trailer. Do not exceed any posted speed limit.

DRIVE DEFENSIVELY – anticipate stops, brake early, and never follow closely.

BEFO RE going downhill, slow down and shift the transmission into a lower gear. DO NOT RIDE BRAKES on downgrades.

Slow down for curves, adverse weather, hazardous road conditions, road construction and expressway exits.

Before Towing and on the Road

Use the checklist at the end of these instructions before towing and while on the road.

Make sure your tow vehicle is properly equipped and maintained. Be sure all tires are inﬂated properly.

ALWAYS wear your seat belt.

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Safety

DO NOT drive when you are fatigued, sleepy or distracted. Avoid driving at night.

NEVER use a cell phone when driving. If you need to use a cell phone ﬁnd a safe place to exit the roadway.

NEVER drive under the inﬂuence of alcohol or any subst ance that might impair your vision, judgment, or ability to control the vehicle.

NEVER tow without properly inst alled tire straps and vehiclein-tow security chains.

DO NOT tow the trailer unless the tongue jack is fully raised off the ground.

NEVER allow passengers to ride on the trailer.

No open or soft-top sport utility vehicle is allowed to tow a trailer, because in the event of a crash, these vehicles offer less collision and ejection protection.

Your Tow Vehicle

Refer to the owner’s manual, decal instructions or an authorized automotive dealer for any speciﬁc handling characteristics of your tow vehicle.

Changes to your tow vehicle from how it was manufactured can affect its ability to tow. These changes can include different tires, suspension changes, etc. Check your owner’s manual or with an authorized automotive dealer to make sure any changes to your tow vehicle are approved. DO NOT tow the trailer if your tow vehicle has changes that are not approved.

Avoid driving on a compact spare tire any longer than necessary. Follow the vehicle manufacturer instructions.

Maintenance and condition of your tow vehicle’s engine, transmission, steering, suspension, front-end alignment, and tires, may affect the vehicle’s ability to tow the auto transport trailer. Have an authorized repair facility inspect and repair your vehicle BEFORE towing.

To ﬁnd the capabilities of the engine, transmission and axles of your vehicle for towing, refer to the owner’s manual, or check with an authorized dealer.

TOWING EQUIPMENT REQUIREMENTS

Hitches must be able to tow the weight of your trailer and your vehicle-in-tow .

When towing a trailer, all lights must be operational. Also, your tow vehicle may require external mirrors on both sides.

Tire Pressure

Set all tires to the proper pressure. Find the recommended COLD pressures on the tire sidewall, owner’s manual, your vehicle’s door decal or in the trailer manual. DO NOT put more pressure in the tire than is indicated on the tire

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Connecting Your Trailer

Lower the coupler onto the hitch-ball and follow the instructions below to properly fasten the coupler to the hitchball. Do not allow your self to become distracted. Ensure that the coupler is properly fastened to the hitch-ball before moving to the next step.

COUPLER- Push down on the latch and fully open the coupling. Lower the coupler onto the hitch-ball.

Check that the ball clamp is positioned below the coupler. The coupler should completely cover and enclose the hitch-ball.

Tighten the coupler latch down.

Move the tow vehicle forward slightly, or push rearward on the trailer to ensure that the hitch-ball is properly seated inside the coupler. Recheck that it is tight.

Check all connections at each stop. Make sure the hitch and hitch-ball are securely attached to your tow vehicle and the trailer coupler is properly connected to the hitch-ball. Use the checklist at the end of these instructions. If you suspect or detect something is wrong, contact the nearest Rayco Dealer.

Safety Chains

The purpose of the safety chains is to keep the trailer connected to your tow vehicle in the unlikely event the coupler comes off the ball or the ball comes off the hitch. Safety chains are attached to the trailer tongue and are equipped with hooks. DO NOT tow the trailer without the safety chains securely attached to the towing vehicle. DO NOT attempt to pull the trailer by the safety chains alone, unless this is necessary to get the combination off the roadway to a safe place.

The left chain crosses underneath the trailer tongue and hooks to the right side of the tow vehicle permanent hitch, frame or structure, or to the tow vehicle bumper brackets. Do not attach chains to the ball or to a ball mount that is removable. The right chain hooks to the left side in the same manner. Crossing the chains under the tongue allows the minimum amount of slack for turning. Control slack by hooking the chain back to itself or by twisting the links to shorten chain. Be sure the hooks are secured.

The chains need slack to allow your vehicle to make turns. Make sure these chains attach securely to your tow vehicle and do not drag on the roadway.

Emergency Brake Cable/Chain

Trailers with brakes have a third chain, called the emergency brake chain. This chain applies the brakes automatically in the unlikely event of a separation of the trailer from the tow vehicle. Attach this chain as close to the vehicle center as possible; to the tow vehicle permanent hitch, frame or structure, or to the bumper brackets. Twist chain to take up most of the slack and secure. Some slack is necessary

to prevent the emergency brake from activating on turns or inclined driveways.

Photo-eye (if equipped)

DO NOT ATTEMPT TO DISABLE THE PHOTO

EYE. ANY ATTEMPT TO DO SO COU LD RESULT

IN SERIOUS INJURY OR DEATH. ALWAYS

ENSURE THE PHOTOEYE IS WORKING BEFORE

OPERATING THE MACHINE. IF THE PHOTOEYE

IS NOT OPERATIONAL, DO NOT OPERATE THE

MACHINE!

• Operator must be in proximity of the photo-eye in order to engage the cutter wheel. The cutter wheel will shut down if operator steps away from the photo-eye.

Lighting Conditions

Make sure all tow vehicle and trailer lights function properly. The connecting wires need slack to allow your tow vehicle to make turns. Do not allow wires to drag on the roadway.

Load the heaviest end (engine end) of the vehicle in-tow to the FRONT of the trailer. Failure to load facing forward may result in sway or WHIP PING and lead to total loss of control.

DO NOT load cargo in your vehicle-in-tow or on your trailer. Loading cargo in your vehicle-in-tow or on trailer may result in sway or WHIPPING.

Before loading your vehicle-in-tow, make sure the trailer is securely attached to your tow vehicle hitch. Make sure the safety chains are properly connected. During the loading process, keep bystanders at least 25 feet away.

Make sure that the entire width of the tires will be on the ramps before driving on the ramps.

Approach ramps slowly, check angle of machine to insure proper alignment with trailer, then proceed to drive up ramps into trailer.

1. Drive the machine forward and align it with the trailer.

2. Unlock and lower the trailer ramps.

3. Drive the machine forward so that the front wheels enter the trailer channels, and continue driving the machine up the ramps until the rear drive wheels are on the trailer.

4. Remove the machine tie-down pin from the storage sleeve on the trailer and insert it through the matching holes in the machine and the trailer.

5. Raise the trailer ramps and lock them in the travel position with the lock bars and associated retaining pins.

Secure the Load

Secure the vehichle-in -tow to the trailer with necessary straps and chains to prevent movement or load shifting during transport.

Unloading the Machine From the Rayco Trailer (optional equipment)

1. Remove the ramp lock bar retaining pins, and lower the loading ramps.

2. Remove the tie-down pin from the bumper of the machine and store it in the sleeve on the trailer.

3. Start the engine. (See “Starting the Engine” and “Preoperation Warm up”.)

4. Position the engine throttle on low idle

5. Slowly back the machine off of the trailer, until the machine is on the ground.

DO NOT RELEASE OR JERK THE FORWARD/

REVERSE LEVER UNTIL THE MACHINE IS

COMPLETELY UNLOADED, OR THE STUMP CUTTER

MAY TIP OVER IN RESULT.

6. To drive the machine, set the engine at the desired speed, and use the machine controls to steer the machine in the desired direction.

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Towing Checklist

Before Towing

 Towing hitch and hitch-ball are tight.

 Coupler is tight.

 Safety chains, tire straps and security chains are

properly attached and secure.

 All lights are connected and working.

 Check all tires for correct pressure.

 Load vehicle-in-tow heavier end (engine end) toward

the front of the trailer.

 Ramps securely stored and latched.

 Tongue jack is fully raised.

Before Driving

 Fasten seat belts.

 Properly adjust mirrors.

On The Road

 Reduce speed to 45 mph or below.

 Stop often for rest.

 Inspect your vehicles and trailer connections at each

stop.

 Anticipate stops, brake early.

Crashes Are Caused By:

• Driver error or Inattention.

• Excessive speed.

• Failure to load Auto Transport trailer heavier in front.

You Should Always:

• LOAD TRAILER HEAVIER IN FRONT

• REDUCE YOUR NORMAL DRIVING SPEED

• WEAR YOUR SEAT BELT

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Safety

Sound Level Information

The operator Equivalent Sound Pressure Level is used to measure a work cycle sound exposure level

Hearing protection may be needed when the machine is operated with an open operator station for extended periods in a noisy environment. Hearing protection may be needed when the machine is operated.

Vibration Data Information concerning hand/arm vibration level

When the machine is operated according to the intended use, the hand/arm vibration of this machine is rated by meter per second squared.

Note: Vibration levels are inﬂuenced by many different parameters listed below.

• Operator training, behavior, mode, and stress

• Job site organization, preparation, environment, weather and material

• Machine type, attachments, and condition of the equipment.

Guidelines for Reducing Vibration Levels on Equipment

Properly adjust machines. Properly maintain machines. Operate machines smoothly. Maintain the conditions of the terrain. The following guidelines can help reduce the whole body vibration level:

1. Use the right type and size of machine, equipment, and attachments.

2. Maintain machines according to the manufacturer’s recommendations.

a. Tire pressures

b. Brake and steering systems

c. Controls, hydraulic system and linkages

3. Keep the terrain in good condition.

a. Remove any large rocks or obstacles.

b. Fill any ditches and holes.

c. Provide machines and schedule time in order to

maintain the conditions of the terrain.

4. Use a seat that meets “ISO 7096”. Keep the seat maintained and adjusted.

a. Adjust the seat and suspension for the weight and

the size of the operator.

b. Inspect and maintain the seat suspension and

adjustment mechanisms.

5. Perform the following operations smoothly.

a. Steer

b. Brake

c. Accelerate

d. Shift the gears

6. Move the attachments smoothly.

7. Adjust the machine speed and the route in order to minimize the vibration level.

a. Drive around obstacles and rough terrain.

b. Slow down when it is necessary to go over rough

terrain.

8. Minimize vibrations for a long work cycle or a long travel distance.

a. Haul the machines between workplaces.

Guards (Operator Protection)

There are different types of guards that are used to protect the operator. The machine and the machine application determines the type of guard that should be used.

A daily inspection of the guards is required in order to check for structures that are bent, cracked or loose. Never operate a machine with a damaged structure.

Other Guards (If Equipped)

Protection from ﬂying object and/or falling objects is required for special applications. Logging applications and demolition applications are two examples that require special protection.

If the work material extends above the cab, top guards and front guards should be used.

Precautions for Welding on FRAME with ENGINE/MACHINE Electronic Control Unit (ECU)

Important: ALWAYS disconnect Electronic Control Unit (ECU) connectors and engine control system-to-machine ground before welding on engine or machine.

High currents or electrostatic discharge in electronic components from welding may cause permanent damage

Safety Decals

Keep all decals in place and in good condition:

• Use soap and water to keep decals clean. DO NOT use mineral spirits, abrasive cleaners or other similar cleaners which will damage the decals.

• If a machine component to which a decal is attached is replaced, be sure to replace the decal as well.

• Replacement decals may be purchased from Rayco Mfg or your Rayco dealer.

LOCK-Out / Tag-Out Guidelines

Always practice lock out tag out procedures when working on this machine.

Lock Out Procedure

• All affected persons are to be notiﬁed that the equipment will be off and locked out.

• All energy sources for the equipment should be identiﬁed.

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• A lock is to be placed on each energy source disconnect or energy release block.

1. The lock is to be placed directly on the equipment if provided with an integral locking device.

2. If there is no integral lockout device on the equipment, securely attach an independently manufactured lockout device on the equipment and then place the lock on the lockout device.

3. If none of the above are possible, use the tag out procedure.

• A tag to be secured to the lock indicating that the equipment is not to be energized and who owns the lock.

• It should be safely tested and veriﬁed that the lockout does prevent the release of energy.

Tag Out Procedure

• This procedure is to be used only if it is not reasonable to use the lockout procedure.

• All affected persons are to be notiﬁed that the equipment will be shut off and tagged out.

• All energy sources for the equipment should be identiﬁed.

• The equipment shall be shut off or otherwise deenergized, being careful to de-energize all energy sources. This includes all valves, switches, breakers, or other controls that supplies energy to the equipment. incase of mechanical energy, a block may be used to stop the release of stored energy.

• Securely place a tag on each energy source disconnect or energy release block.

Removal Procedure

• Lockout/tag out equipment must be removed by the worker who placed it.

• Before the removal of a lockout/tag out the following must be completed:

1. Removal of all non essential items.

2. Check to see that all workers and bystanders are located in a safe position.

3. Inform all affected personnel.

• If a worker who applied the lockout/tag out is not present, and his supervisor deems it necessary to energize the equipment, the following must be done by the supervisor.

1. Make all reasonable effort to contact the worker who placed the tag.

2. Determine the purpose of the lockout/tag out, and whether it is safe to operate the equipment in its current condition.

3. Remove all non essential items.

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RG27/35/37 Operation • Service • Maintenance

Safety

4. Inform all affected personnel.

5. Check to see that all affected persons are located in a safe position.

6. Inform the worker of the lockout/tag out removal before the worker starts to work for his/her next shift.

7. When more than one person works on the same equipment, multiple lock/tag outs must be used. Only when all locks are removed can the equipment be energized.

Engine Starting

If a warning tag is attached to the start switch or to the controls, do not start the engine. Also, do not move any controls.

Move all hydraulic controls to the NEUTRAL position before you start the engine.

Before Operation

Clear all personnel from the machine and from the area.

Clear all obstacles from the path of the machine. Beware of hazards such as wires, ditches, etc.

Make sure that all windows are clean. Secure all doors in the closed position. Secure the windows in the open position or in the shut position.

Call 811 Before You Dig. One free, easy call gets your utility lines marked and helps protect you from injury and expense. Know whats below, before you dig. Go to www.call811.com for more details.

Operation

Only operate the machine controls when the engine is running. Do not leave the operators station while machine is running.

Before you move the machine, you must be certain that no one will be endangered.

While you operate the machine and the work tool slowly in an open area, check for proper operation of all controls and all protective devices.

Do not allow riders on the machine.

Note any needed repairs during machine operation. Report any needed repairs to certiﬁed service technician.

Do not go close to the edge of a cliff, an excavation, or an overhang.

If the machine begins to sideslip downward on a grade, immediately turn the machine downhill.

Avoid operating the machine across the slope. When possible, operate the machine up the slopes and down the slopes.

Maintain control of the machine. Do not overload the machine beyond the machine capacity.

Never straddle a wire cable. Never allow personnel to straddle a wire cable.

Know the maximum dimensions of your machine.

Observe all applicable local government regulations when you use this machine.

Parking

Park on a level surface. If you must park on a grade, chock the machine.

1. Move the joystick control slowly to the NE UTRAL position in order to stop the machine.

2. Move the throttle control lever to the LOW IDLE position.

3. Lower all implements (if equipped) so that the work tool implement rests ﬁrmly on the ground.

4. Move the hydraulic controls to the NEUTRAL position.

5. Turn the engine start switch key to OFF position and remove the key.

6. Disconnect the operator restraint devices (if equipped) and exit the machine.

7. Block the wheels (if equipped), and set manual brake (if equipped) to prevent movement.

Work Tool options - Attachments

Only use work tools that are approved by Rayco for use on Rayco machines. Refer to the Operation and Maintenance Manual, Rayco options”.

If you are in doubt about the compatibility of a particular work tool with your machine, consult your Rayco dealer.

Make sure that all necessary guarding is in place on the host machine and on the work tool.

Equipment Lowering with Engine Stopped

RG27/35/37 Operation • Service • Maintenance

Safety

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RG27/35/37 Operation • Service • Maintenance

Operation

Getting to know your machine

911

1. Operator Panel

2. Fuel / Hydraulic Tanks

3. Blade

4. Steer Axle

5. Safety Curtains

6. Cutter Wheel

7. Cutter Boom Belt

8. Engine

9.Swing Out Arm

10. Toolbox

a. Relays

b. Battery

11.Operator Bar

12. Hour Meter

13. Engine Throttle - Pulling the handle to the right will

increase the speed of the engine. Pulling it to the left will decrease engine speed. The throttle lever should normally be in the IDLE position when turning the cutting wheel ON or OFF. Position the throttle lever in the maximum position when cutting stumps.

Note: It is not necessary to have the engine at full throttle when moving the machine, increase the engine speed as needed for more power.

14. Ignition Key Switch - Turn the key clockwise to the START position to engage the starter. Release the key when the engine starts. (The key will automatically return to the ON position.) Turn the key to the OFF position to shut off the engine. They key should not be removed from the key switch while the key in any position other than OFF.

NOTICE

To ensure the long life and economical operation of your stump cutter, we highly recommend that the operator be well instructed in both the operation and maintenance of this machine.

RG27/35/37 Operation • Service • Maintenance

Operation

Pre-Starting Inspection

Inspect the hydraulic system for leaks. Check the hydraulic oil level. Inspect the machine and perform each of the “Daily Inspections listed in the The Maintenance Manual as needed before operating this machine.

Pre-Operation Warm-Up

1. Allow the engine to warm up at low idle for two minutes.

2. To warm up the hy drau lic oil, move the engine throttle to me di um engine speed. Run the engine for about two minutes while intermit tent ly holding the cutting wheel raise lever in the RAISE position.

3. Move the engine throttle to the max i mum engine speed. Run the engine for an addition al two minutes while in ter mit tent ly hold ing the cutting wheel raise lever in the RAISE position. This will allow the oil to reach relief pres sure, which causes it to warm up more rapidly.

4. Cycle all the controls to allow warm oil to circulate through all the cylinders and lines.

Starting the Engine

If the key switch is released before the engine starts, wait until the starter and the engine stops turning before trying again. This will prevent pos si ble dam age to the starter and/ or ﬂywheel. If the temperature is extremely cold, it may be necessary to use cold weather start ing aids. Follow the man ufac tur er’s recommended procedure when using starting aids.

Always change the hydraulic oil ﬁlter at the prop er times. Do not allow the engine to run with out the ﬁlter installed. Failure to heed either direc tive will result in poor machine performance and se vere damage.

NOTICE

DO NOT operate the starter for more than 10 seconds at a time. If the engine does not start, allow a 60 second cool-down period before re-attempting to start. FAILURE TO FOLLOW THESE GUIDELINES MAY CAUSE STARTER MOTOR FAILURE.

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RG27/35/37 Operation • Service • Maintenance

Operation

Operating the Machine

Machine Movement - RG27/35

Steer Right/Left

(2) Steer machine Left/Right with lever

(3) Blade/Boom Movement - Raise and Lower

NOTICE

The control levers will re-center themselves in a neutral position when released. No movement should occur, if you observe any movement when controls are in nuetral position, please contact a service technician immediately and follow the tag-out procedure outlined in the safety section of this manual.

Machine Movement - RG37

3 4

(4) Cutter Boom Swing - Left or Right

(5) Blade/Boom Switch - select which tool attachment the

levers will control.

(6) Engine Throttle

(7) Engine Oil Pressure Warning - If this light illuminates,

the engine will shut down. Service engine immediately. (RG37 Only)

(8) Engine Warning - If this light illuminates, the engine will

shut down. Check engine manual for troubleshooting

and service engine immediately. (RG37 Only)

(9) Emergency Shut Down (RG37Only)

ROTATION DOES NOT STOP INSTANTLY. A

ROTATING CUTTING WHEEL IS VERY DANGEROUS!

STAND AT THE CONTROLS AND WATCH THE

CUTTING WHEEL U NTIL COMES TO A COMPLETE

STOP BEFORE DOING ANYTHING ELSE

(10) Cutter Wheel On/Off. - Pull the switch up after the

engine is running and the safety tether is lowered in its correct position.

NOTE: The cutter wheel will not engage if the safety tether

Move Forward/Reverse

(1) Move machine Towards/Away from stump with lever

THE OPERATOR SHOULD NEVER ATTEMPT TO

LEAVE THE OPERATOR STATION WHILE THE

CUTTER WHEEL IS ENGANGED.

is not in its proper location.

NOTE: The operator control station must not be in the

THE MACHINE WILL ROLL FREELY WHEN THE

WHEEL DRIVE DISCONNECT IS USED.

RG27/35/37 Operation • Service • Maintenance

Operation

3. You may now empty the remaining ﬂuid back into the plastic bottle from the gun.

4. Reconnect hydraulic hose the brake release ﬁtting you removed earlier in step 3.

5. Tighten the needle valve screw loosened in step 2.

6. If the proper repairs have been made to the machine, you may follow the starting procedure outline in this manual.

Dual Wheels

NOTE: TORQUE BOLTS TO 80 FT-LBS CAUTION - EXCESSIVE TORQUE WILL DISTORT BACKING PLATE

transport position (locked at the front of the machine) to operate the blade. The blade will not function in this position.

Transporting in Freewheel Mode

In the event of a machine malfunction, the stump cutter may be towed a short distance by using the wheel drive disconnect. This procedure should be used to move the machine in the event that it can not power itself to the desired spot to be repaired. Before using the freewheel disconnect make sure the wheels are choked.

Disable The Wheel Motors

To disengage the wheel drive motor perform the following steps:

1. Ensure that the machine is secured and will not roll.

2. On each drive wheel, pull and turn the Wheel Drive Disconnect (11) handle 90 degrees.

3. The machine is now ready to be moved.

4. Once the proper repairs have been made, the drives can be re-engaged by pulling and turning the Wheel Drive Disconnect (11) handle 90 degrees.

Re-engage The Wheel Motors

1. Reopen the valve on the gun. This will allow the charged hydraulic ﬂuid to drain back into the gun.

2. Disconnect the gun from the brake release ﬁtting using the wrench.

The dual wheels provide increased stability & traction, yet can be easily removed for maneuvering machine through tight spots. To remove a wheel:

• Drive the rear inside wheel onto a small wooden board so that the outer wheel is slightly raised off of the ground.

• Loosen the bolt (13) using the provided tool (12).

• Remove the outer wheel.

• Place the outer wheel, washer and bolt in safe-keeping until needed again.

• To remount the wheel, reverse the above procedure. Tighten the bolt ﬁrmly but do not exceed 80 ft/lbs.

Note: In instances where the above procedure is not possible, a 4x4 (or similar material) can be placed under the blade to aid in lifting the machine. Use extreme caution when doing so as this decreases machine stability.

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RG27/35/37 Operation • Service • Maintenance

Operation

Cutting Wheel Precautions

BEFORE ENGAGING THE CUTTER WHEEL, THE

OPERATOR MUST ENSURE THE AREA IS CLEAR

OF ANYONE OR ANYTHING THAT MAY BE HARMED

BY THE CUTTER WHEEL, OR FLYING DEBRIS.

THE STUMP CUTTER’S CUTTING WHEE L IS

EXTREMELY POWERFUL. CONTACT WITH THE

CUTTING WHEEL WILL RESULT IN SERIOUS

INJURY OR DEATH.

NEVER LEAVE THE CONTROLS WHEN THE

CUTTING WHEEL I S ROTATING.

NOTICE

Remove all loose pieces of wood, stones, wire and other debris from the work area before beginning stump removal.

NOTICE

Wind direction should be considered, as it influences the direction that dust and wood chips will be directed.

NOTICE

Always allow a cold engine time to warm-up before cutting a stump.

NOTICE

The speed at which the blade moves is dependant on the position of the throttle. To increase the rate of blade movement, increase the engine RPM’s by adjusting th throttle higher. Decrease the engine RPM’s to decrease the rate of blade movement.

NOTICE

ONLY THE PORTION OF CUTTING WHE EL WITHIN THE 80° AREA SHOWN ABOVE SHOULD ENGAGE STUMP. NEVER UNDERCUT THE STUMP OR USE THE BOTTOM OF THE CUTTING WH EEL FOR CUTTING PURPOSES.

• NEVER go near the cutting wheel when the machine is turned on. Turn off the machine ﬁrst.

• Always cut with the machine downhill, below the stump.

• Use extreme caution on slopes. Slopes, combined with less than ideal traction (ice, snow, gravel, leaves, wet grass) can allow the machine to move unexpectedly.

Call Before You Dig

NOTICE

When swinging the cutting wheel, DO NOT use the cutting wheel or boom to stop the swinging motion. Inspect the machine for damage if the boom as been swung too hard into the stump or side of a hole.

NOTICE

Whenever the tires of the machine raise off the ground while operating, lower the ma chine back to the ground smoothly. DO NOT DROP OR CATCH IT SUDDE NLY WITH THE HYDRAULICS. Dam age to the ma chine can result.

Call 8-1-1

Stump Removal Procedure

1: Prepare the machine at the stump:

RG27/35/37 Operation • Service • Maintenance

Operation

• Continue repeating this procedure until all of the amount of stump in the path of the downward swing of the

cutting wheel is gone.

4: Cut another level of the stump:

• Drive the machine into position with the cutting wheel near the top edge of the stump.

• Move the engine throttle to IDLE.

• Start cutting wheel rotation

• Increase the engine to increase the cutter wheel.

2: Remove the roots:

• Swing the cutting wheel to one side, then lower it into the nearside roots that may be buried at the foot of the stump, and swing the cutting wheel across them until they are sufﬁciently removed

3: Cutting the stump properly:

• Raise the cutting wheel to the top of the stump and advance the machine to a combined position where the center of the shaft remains just above the top of the stump, such that upon swinging the cutting wheel, a bite approximately 4” deep may be taken.

• Sweep the cutting wheel across the stump, taking an approximately 2.75” deep bite.

• After the ﬁrst bite is taken, lower the cutting wheel about 2” while is off to the side and swing the cutting wheel across for another bite.

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• Raise the cutting wheel above the stump once again, and starting with the cutting wheel swung to one side, advance the machine slightly (about 2”) and repeat STEP 3.

Repeat STEP 4 consecutively 5: Cut Remaining Roots:

• Cut the remaining roots as described in STEP 1 until the entire stump is satisfactorily removed.

• After the stump has been fully removed, stop the cutting wheel rotation. Raise and center the cutting wheel.

• Machine is ready for travel to the next destination

6: Once the Stump is completely cut:

• Reduce the throttle to IDLE and shut off the cutting wheel rotation.

• Stop the cutting wheel rotation quickly by gently lowering the cutting wheel into the soil.

• Fully raise and center the cutting wheel. The machine may then be self-propelled to the next destination

RG27/35/37 Operation • Service • Maintenance

Operation

Stopping The Machine

DUE TO HIGH SPEED LOWFR ICTION ROTATION,

THE CUTTING WHEE L MAY CONTINUE TO ROTATE

UNNOTICED, EVEN AFTER THE ON/OFF SWITCH HAS BEEN FLIPPE D OFF, AND EVEN AFTER THE

ENGINE HAS STOPPED. BE SURE TO BRING

CUTTING WHEEL ROTATION TO A COMPLETE STOP

BEFOR E MOVING THE MACHINE OR LEAVING THE

CONTROLS!

1. When stopping the machine after normal operation, lower the engine speed to SLOW, and cycle each of the hydraulic controls slowly for about 30 seconds each to help the hydraulic com po nents to cool slowly.

2. Flip the cutting wheel ON/O FF Switch down to the OFF position, stopping the cutting wheel rotation.

3. Stop the cutting wheel rotation quickly by gently lowering the cutting wheel into the soil.

4. Reduce the engine speed.

Engine Stopping

1. Reduce the engine speed to IDLE.

2. Turn the engine start switch to the OFF position to stop the engine. Remove the engine start key.

damaged. The drive motor must be replaced. Failure to keep the ground-drive brake in working condition can result in a machine moving unexpectedly, causing injury or death. The machine must be taken out of service until the ground-drive motor is repaired or replaced.

The machine is always to be parked with the drive wheels engaged, and the drive wheels chocked.

Parking The Machine

Park on a level surface if possible. If it is necessary to park on a grade, block the tracks securely and set the parking brake. Do not park sideways on a hill, side-sliding could occur.

• Lower the engine speed control slightly to reduce engine rpm.

• Center the cutter boom, using the joystick.

• Turn off the cutting wheel by moving the control lever to the off position

• Center the Left Joystick to stop the machine

• Press the parking brake button on the keypad

• Lower the attachment slowly with the Right Joystick until the cutting wheel rests on the ground.

Testing The Brake

This machine is required to have a daily inspection of the ground-drive brake. This check should be done by the operator every day, before using the machine.

The ground-drive brake on this machine is a spring-activated, hydraulically-released unit. This means that anytime the unit is not being moved with hydraulic pressure, the spring-applied brake should engage. The machine should never visibly “creep” when it is not being moved.

The machine can be tested on any slope, but the simplest inspection can be done when unloading or loading the machine onto its trailer, or into a pickup truck. When the drive wheels are on the ramps, bring the machine to a halt, and observe the drive wheels. The wheels should not turn at all. No “creep” should be evident.

If the machine can be observed to be creeping down the ramp, check the following items:

• Both drive wheels are engaged.

Correct all of these items and retest the machine. If the machine still creeps, then the spring-activated brake has been

Machine Storage

Preparing for Storage

Store the machine in a dry protected place. If the machine must be stored outside, cover it with a waterproof canvas or other material.

Clean all grease, dirt, mud and other foreign matter from the machine. Wash the machine. Start and operate machine to help rid it of puddled or excess water. To inhibit rusting, paint all exposed surfaces.

All exposed hydraulic cylinder rods should be coated with Valvoline Tectyl 506 oil or equivalent. Rusty or pitted cylinder rods will dam age O-Rings and cause leakage.

Lubricate all parts that have grease ﬁttings, as outlined in the “Maintenance Intervals” section of the Maintenance manual, to prevent rust.

With the engine OFF, remove any pressure from the hydraulic cylinders by working the control levers back and forth.

Store the battery inside where temperatures do not drop below 32° F. Place the battery on wood, not on a concrete ﬂoor or steel table. Always keep the battery fully charged. DO NOT store where an open ﬂame or sparks might occur.

Check your machine for any worn or broken parts at this time. By ordering replacement parts now, you can avoid unnecessary delays when you remove the machine from storage.

Engine speciﬁc storage information is as follows and can also be found in your Cummins Engine Operator Manual.:

1. Remove dirty engine oil, ﬁll with new oil and run the engine for about 5 minutes to let the oil penetrate to all the parts.

2. Drain the coolant from the radiator but do not reﬁll. Leave the drain valve at the bottom of the radiator open and place a sign reading “No Water” on the pressure cap. Since water may freeze when the temperature drops below 0°C (32F), it is very important that no water is left in the machine

3. If machine is to be stored outside, add a diesel bio-cide to a full tank of fuel to prevent algae growth.

4. Check all the bolts and nuts and tighten if necessary.

5. When the engine in not used for a long period of time, run it for about 5 minutes under no load every 2-3 months to keep it free from rust. If the engine is stored without any running, moisture in the air may condense into dew over the sliding parts of the engine, resulting in rust there.

6. If you forget to run the engine for longer than 5-6 months, apply enough engine oil to the valve guide and valve stem

RG27/35/37 Operation • Service • Maintenance

Operation

seal and make sure the valve works smoothly before starting the engine.

7. Store the machine in a ﬂat place and remove the key from the engine.

8. Do not store the machine in a place that has ﬂammable material such as dry grass or straw.

9. When covering the engine for storage, allow the engine and mufﬂer to cool off completely.

10.Operate the engine after checking and repairing damaged wirings or pipes, and clearing ﬂammable materials that may have accumulated while in storage (such as debris brought in by mice).

Removal from Storage

• Remove all coverings. Wipe excess oil from hy drau lic cylinder rods.

• Lubricate machine entirely, as instructed in the “Maintenance Intervals” section of this manual.

• Check the hydraulic hoses and fuel lines for deterioration, and replace as necessary.

• Tighten all nuts, bolts and hydraulic ﬁttings.

• Replace the hydraulic ﬁlter and fuel ﬁlter. After prolonged storage, change the hydraulic oil, engine oil, and fuel (if a storage aid was not used).

NOTICE

Before stopping an engine that has been operationg at working load, allow the engine to continue to run with the throttle midway between slow and fast, for at least 15 seconds.

• Check cutter boom drive belt tension. Belt can loosen if left in storage for an extended time. Replace if belt is older than 6 years from purchase date.

• Mount the battery and connect the cables to the machine.

• Make sure to reﬁll radiator and/all other ﬂuids that were drained prior to storage.

• Review the machine according to the “Before Start ing the Engine” as found in the “Safety” section of this manual, and perform all maintenance services necessary as described in the Maintenance section’s “10 Service Hours or Daily” section before starting the engine.

• Start the machine according to the “Starting the Engine” and “Pre-Operation Warm-up” sections of this manual

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RG27/35/37 Operation • Service • Maintenance

Maintenance

Certiﬁed Engine Maintenance

Proper maintenance and repair is essential to keep the engine and machine systems operating correctly. As the heavy duty off-road engine owner, you are responsible for the required maintenance listed in the Engine Owner Manual & Machine Operator, Maintenance & Service Manual. Attach a “Do Not Operate” warning tag or a similar warning tag to the start switch or to the controls before you service the equipment or before you repair the equipment. Know the width of your equipment in order to maintain proper clearance with you operate the equipment near fences or near boundary obstacles. Be aware of high voltage power lines and power cables that are buried. If the machine comes in contact with these hazards, serious injury or death may occur from electrocution. Wear a hard hat, protective glasses, and other protective equipment, as required. Do not wear loose clothing or jewelry that can snag on controls or on other parts of the equipment. Make sure that all protective guards and all covers are secured in place on the equipment. Keep the equipment free from foreign material. Remove debris, oil, tools, and other items from the deck, from walk-

ways, and from steps. Secure all loose items such as lunch boxes, tools, and other items that are not a part of the equipment. Know the appropriate work site hand signals and the personnel that are authorized to give the hand signals. Accept hand signals from one person only. Do not smoke when you service an air conditioner. Also, do not smoke if refrigerant gas may be present. Inhaling the fumes that are released from a ﬂame that contact air conditioner refrigerant can cause bodily harm or death. Inhaling gas from air conditioner refrigerant through a lighted cigarette can cause bodily harm or death. Never put maintenance ﬂuids into glass containers. Drain all liquids into a suitable container. Obey all local regulations for the disposal of liquids. Use all cleaning solutions with care. Report all necessary repairs. Do not allow unauthorized personnel on the equipment. Unless you are instructed otherwise, perform maintenance with the equipment in the servicing position. Refer to Operation and Maintenance Manual for the procedure for placing the equipment in the servicing position. When you perform maintenance above ground level, use appropriate devices such as ladders or man lift machines. If equipped, use the machine anchorage points and use approved fall arrest harnesses and lanyards.

CALIFORNIA

Proposition 65 Warning

Diesel engine exhaust and some of its constituents are

known to the state of California to cause cancer, birth

defects, and other reproductive harm.

NOTICE:

Maintenance and Repairs should ONLY be performed by a trained specialists or qualified person.

Please contact Rayco Mfg for a listing of approved maintenance facilities in your area.

RG27/35/37 Operation • Service • Maintenance

Maintenance

Maintenance Log

Date of Service Machine Hours Description of Service/ Maintenance Notes

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RG27/35/37 Operation • Service • Maintenance

Maintenance

Daily or Every 10 Hrs Maintenance Interval

Walk Around Inspection See list

Engine Oil Level Check & Replace if needed

Oil Cooler Clean

Air Cleaner Filter Check

Hydraulic Oil Check

Fuel Tank Check & Fill if needed

Fuel Filter Check

Brake Test Safety Check

Grease & Oil Buildup Remove

Jackshaft Bearings Lubricate

Cutting Wheel Lubricate

Cutter Wheel Bearings Lubricate

Cutting Wheel Teeth Check

After First 10 Hrs Maintenance Interval

Chain Tension

V-Belts

After First 50 Hrs Maintenance Interval

Hydraulic Oil & Filter Change

Engine Valve Clearance Check

Engine Oil & Filter Change

Check & Tighten if needed

Every 50 Hrs Maintenance Interval

Slewing Ring Grease

SOA Bushings Grease

Pivot Bushings Grease

Blade Bushings Grease

Steering Axle Cylinder Bushings Grease

Steering Axle Pivot Knuckles Grease

Self Propel Rear Axle Flange Bearings Grease

Hydraulic Pump V-Belt Check Tension

Jackshaft V-Belt Check Tension

Engine Oil & Filter Change

Every 100 Hrs Maintenance Interval

Engine Spark Plugs Check

Air Cleaner Filters Clean

Tires & Rims Check

Self-Propel Wheel Engage Pins Apply Oil

Cross-Travel Cylinder Rods Check & Clean if needed

Every 250 Hrs Maintenance Interval

Hydraulic Oil Filter Change

Self-Propel Wheel Bearings Service

Engine Valve Clearance Check

Battery Check

Engine Fuel Filter Change

Every 500 Hrs or 1 Year Maintenance Interval

Hydraulic Oil Filter Change

Spark Plugs Change

RG27/35/37 Operation • Service • Maintenance

Maintenance

Walk-Around Inspection

1. Inspect the cutting boom cylinders and linkage for damage or excessive wear. Repair if dam aged.

2. Inspect and remove any chip or residue buildup in and around the engine.

3. Inspect the hydraulic system for leaks. Inspect the tank, hoses, tubes, plugs, joints, and ﬁttings. Correct any leaks.

4. Be sure the covers and guards are ﬁrmly in place. Inspect for damage.

5. Inspect the tires and rims for damage and inﬂation. Inﬂate all tires to 22 PSI. Replace worn tires.

6. Inspect for loose or missing fasteners. Tighten or replace.

7. Inspect the belts and PolyChain® for wear. Replace if frayed or cracked.

Engine Oil Level

NOTICE

Check only when the engine is in a level position.

Engine Oil & Filter - Change

Follow directions in the Engine Operator Manual

1. With engine OFF but still warm, remove the oil drain plug (2) and drain oil into appropriate container. When ﬁnished, reinstall the drain plug.

2. Remove the oil ﬁlter (3) by turning counterclockwise as shown.

3. Apply a light oil ﬁlm on the new ﬁlter gasket and install ﬁlter by turning clockwise until gasket contacts the ﬁlter adapter. Then tighten by hand 1/2 to 3/4 turn more.

4. Place engine level and add the appropriate oil type and viscosity rating as described in the engine manual. Fill to the correct level, replace dipstick and ﬁll cap.

5. Start engine and run for 30 seconds to circulate oil through the ﬁlter, then stop engine.

6. Wait 30 seconds after shutting engine down and then check oil level and add according to the FULL mark shown on the dipstick.

7. When complete, replace the dipstick and ﬁll cap.

Check oil level on dipstick (1) located behind engine as shown. Follow the directions found in the Engine Operator Manual.

Engine Oil Cooler - Clean

Check the oil cooler daily and clean as necessary. (Refer to the engine operation manual for details).

NOTE: For cleaning with a hot water cleaning device, use a spray steam with a pressure not exceeding 426 psi (2982 kPa) to pre vent damage to painted ar eas of the components. The use of solvents or strong cleaners should be avoided for the ﬁrst 90 days. Strong cleaners will destroy paint until the paint is fully cured.

After cleaning, blow the oil cooler dry with compressed air that does not exceed 40 psi (275 kPa).

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Engine Spark Plugs - Check

Follow the directions found in the Engine Operator Manual.

• Check the gap using a feeler gage. Adjust gage to 0.030” (0.76mm) by carefully bending the ground electrode.

• Reinstall the spark plug into the cylinder head. Torque the spark plug to 18-22 ft lbs (24-29 Nm).

Engine Valve Clearance

Follow the directions found in the Engine Operator Manual to check valve clearance

RG27/35/37 Operation • Service • Maintenance

Maintenance

Hydraulic Oil - Check

NOTICE

Replace oil if it smells burnt or appears to be dirty. Use only clean, fresh hyrdaulic oil, free of bubbles. (Bubbles indicate trapped air.)

The hydraulic oil tank (1) (reservoir) is the smaller tank directly behind the larger tank. The oil level is determined either by pulling out the dipstick, which is part of the oil ﬁlter assembly on top of the reservoir, or by a visual check. The oil level should be 1” to 1-1/2” from the top of the reservoir. Add oil if it is below the level indicated.

Check the oil level only when the engine is cold, and with the machine on level ground.

NOTICE

Keep the interior of all hydraulic components clean as they are installed. The machine must not be operated without the ﬁlter in place, or sever damage to the major hydraulic compnents will likely occur.

Re-ﬁll the hydraulic oil tank (1)

1. Clean all surrounding debris and dirt off of the tank ﬁll opening area. (Hydraulic ﬂuid must be kept completely clean!)

2. Unscrew the ﬁlter cap and pull out the ﬁlter.

A 10 micron ﬁlter is used on this machine. It is located

in the reservoir. The oild ﬁlter head has a built-in relief , which can open and bypass th egilter if the oil is extrememly cold or if the ﬁlter becomes clogged. It also has a service indicator that shows when the ﬁlter needs replaced.

3. Fill the tank until the oil level shows 6 to 7” from the bottom of the dipstick.

4. Replace the ﬁlter and cap.

Changing Hydraulic Oil

Drain the Oil

1. Steam clean the pump, motor, cylinders, hydraulic lines, ﬁttings, and tank.

2. Place the machine on level ground.

3. Place a container below the hose and ﬁtting located underneath the hydraulic pump.

4. Remove the hose from the ﬁtting and allow the oil to drain into the container.

5. Clean and install the hose.

6. Loosen the hose ﬁttings on the cylinders, and drain as much ﬂuid as feasible.

7. Replace and tighten ﬁttings.

8. Dispose of drained oil according to local environment protection regulations.

Start Up Procedure

1. Make sure all ﬁttings are tight.

NOTICE

Prior to filling with fluid, make certain all system components (reservoir, hoses, valves, fit tings, pump, etc.) are clean. Care must be taken to not run the pump or hydraulic motor without a sufficient amount of flu id in them.

2. Fill the reservoir with the recommended hydrau lic oil (see “Lubrication and Fluid Speciﬁcations”), which should be passed through a 10 micron (nom i nal) non-bypass ﬁlter prior to entering the reservoir. Never reuse ﬂuid.

3. Crank the engine, using the starter, for a short period of time. This allows the system to begin ﬁlling with ﬂuid. Start the engine and run at the lowest possible speed. Shut down the engine within 40 seconds if the pump or motor begin making an unusual noise, indicating a lack of oil, and be sure the reservoir is full and all the hoses are properly connected.

4. Set the engine throttle at approximately 50% of maximum throttle for a few minutes. This will purge trapped air from the pump/control valve cir cuit.

5. Cycle the self-propel drive lever, two or three times, to purge all remaining trapped air from the self-propel motor circuit.

The hydraulic motor is now ready for operation.

6. Now the hydraulic cylinders circuits may be prepared. Run the engine at normal operating speed. Using the cutting boom motion lever, slowly, then at normal operating speed, cycle the cylinders through all their motions until all the air is bled off. The motions will be smooth and powerful when all of the air is bled off.

7. Check the reservoir level, and add more clean ﬂuid if necessary.

The hydraulic system is now completely ready for operation.

8. Clean up any spilled hydraulic ﬂuid.

RG27/35/37 Operation • Service • Maintenance

Maintenance

Fuel Tank - Fill

GASOLINE IS HIGHLY COMUSTIBLE. DO NOT

SPILL IT ON THE ENGINE. LET THE ENGINE COOL

BEFORE REFUELING. DO NOT SMOKE OR ALLOW

ANY HOT OBJECTS NEARBY WHEN REFUELING.

The fuel tank (2) is the larger tank behind the battery. Remove the fuel cap. Carefully ﬁll the tank, and replace the cap. See “System Fluids Speciﬁcations” in this “Maintenance” section for more information.

Fuel Filter, (In-Line) - Check

Follow the directions found in the Engine Operator Manual.

Engine Fuel Filter - Change

Follow the directions found in the Engine Operator Manual.

Air Filter Indicator - Check

Clean or replace the ﬁlter cartridges if the red ﬂag of the service indicator (3) is fully visible.

Follow the directions found in the Engine Operator Manual.

Air Filter Cartridges - Clean

Clean or replace both the Inner and Outer Filter Cartridges if the red ﬂag of the service indicator (3) is fully visible. Replace as needed. Follow the directions found in the Engine Operator Manual.

Perform this procedure more frequently under extremely dusty or dirty conditions.

Replace Both Filters

• Check the service indicator (3).

• Unfasten the clamps (4) holding the end cap of the air cleaner and remove. After replacing the cartridge(s), replace the end cap of the air cleaner and lock the clamps so that the dust ejector valve (5) is positioned as shown.

• Replace the inner safety ﬁlter cartridge (6) with every other air ﬁlter cartridge replacement.

• Discharge the dust ejector valve (5).

Detailed directions can be found in the Engine Operator Manual.

Perform this procedure more frequently under extremely dusty or dirty conditions.

Brake - Test

This machine is required to have a daily inspection of the ground-drive brake. This check should be done by the operator every day, before using the machine.

If the machine can be observed to be creeping down the ramp, check the following items:

• Both drive wheels are engaged.

• Wheel drive chain is properly tensioned with 1/4” deﬂection in middle.

• No oil leaks are present in the ground-drive circuit.

Correct all of these items and retest the machine. If the machine still creeps, then the spring-activated brake has been damaged. The drive motor must be replaced. Failure to keep the ground-drive brake in working condition can result in a machine moving unexpectedly, causing injury or death. The machine must be taken out of service until the ground-drive motor is repaired or replaced.

The machine is always to be parked with the drive wheels engaged, and the drive wheels chocked.

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RG27/35/37 Operation • Service • Maintenance

Maintenance

Tires and Rims - Check

• Check tires for correct pressure. Inﬂate to 22 psi (1.5 bar).

• Check tires and rims for damage.

• Check lug nuts for tightness. Torque to 85 ft-lb (115 Nm).

Self-Propel Wheel Engage Pins Apply Oil

Apply SAE 30 engine oil.

Self-Propel Wheel Drive Chain

Clean, inspect, and remove any wood chips and any other debris.

Check Tension- Check the drive chain for 1/4” deﬂection at the center of the chain span. If the chain tension does not fall within the speciﬁed range, loosen the mounting bolts and nuts which secure the hydraulic motor, and pivot the motor on the upper bolt until proper tension is attained. Retighten the nuts and bolts.

Apply Oil- Apply with SAE 30 engine oil evenly over the entire length of the chain.

Cross-Travel Cylinder Rods - Apply Oil

Battery - Check

ALWAYS WEAR PROTECTIVE CLOTHING AND

EYEGLASSES WHE N WORK ING WITH BATTERY.

FOR FURTHER IMPORTANT BATTERY SAFETY

INFOR MATION, CON S ULT THE SAFETY SECTION

OF THIS MANUAL, AND ENGI NE OPERATOR

MANUAL.

Adjust Electrolyte Level

1. Raise the hood.

2. Remove each cap carefully by prying with a screwdriver.

3. Electrolyte level should be 1/4” to 1/2” above the metal plates (just touching the bottom of the plastic ﬁll neck). Add distilled water as needed.

4. Replace both caps.

Clean Terminals

1. Raise the hood.

2. Remove the black negative (-) cable.

3. Clean the terminal and clamp of any oxidation buildup with a stiff wire brush. (Stroke the brush away from your body to avoid hazardous particles.)

4. Apply a light coat of petroleum jelly around the base of the terminal.

5. Replace the cable.

6. Repeat the same procedure for the red positive (+) cable.

Apply SAE 30 engine oil and spread evenly over the exposed portion of the rod (1) on both the left and right cylinders.

Grease / Oil Build-Up - Remove

ACCUMULATED GREASE AND OIL ON A MACHINE

IS A FIR E HAZARD. RE MOVE SUCH DEBRIS WITH

STEAM CLEAN ING OR HIG H PRESSUR E WATER.

SEE THE NOTE BELOW FOR DETAILS.

RG27/35/37 Operation • Service • Maintenance

Maintenance

Slewing Ring

NOTICE

Shoot grease in slowly, and carefully prevent damage to the bearing seals. Use extra caution when using a high pressure or high volume grease gun.

Wipe all ﬁttings, caps, and plugs before servicing.

Keep a close watch for leaks. If leaking is observed, ﬁnd the source, and correct the leak.

Check the ﬂuid levels more frequently than the recom mended periods if leaking is suspected or ob served, until the problem is corrected.

Jackshaft Bearings - Lubricate the Fittings

Lubricate the two ﬁttings (2) (one on each jackshaft bearing) 3-4 pumps. Note: cover can be removed to ensure bearings are adequately greased.

Wheel Hub Bearings - Inspect & Grease

The wheel bearings on the ma chine are sealed and generally do not require service. They are, however, greasable. Locate the zerk on the inside of the wheel assembly. Apply 3-4 pumps of grease.

If abnormal wear or other damage seems present, replace bearings immediately. Worn or frozen bearings can damage the drive components

Lubricate 3-4 shots of grease into the grease ﬁtting on the slewing ring (3) (located under the boom asm). There is a zerk on either side of the slewing ring.

Note: Dried grease can plug holes, if grease does not ooze out of holes, use very small drill bit to loosen dried grease / debris, to ensure grease has been applied properly.

2) Swing-Out Arm Bushing

Lubricate 3-4 shots of grease into the grease ﬁtting on SOA bushing (4).

3) Pivot Bushing

Lubricate 3-4 shots of grease on the bearing housing (5) at pivoting end of the boom.

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RG27/35/37 Operation • Service • Maintenance

Maintenance

4) Blade Bushings (If Equipped)

Lubricate 3-4 shots of grease into the grease ﬁttings (1). Note: there should be 4 total ﬁttings.

5) Steering Axle Pivot Knuckles

Cutting Wheel - Lubricate

2 2

Lubricate 3-4 shots of grease into the grease ﬁttings (2) on both steering knuckles.

6) Steering Axle Cylinder

Lubricate 3-4 shots of grease into the grease ﬁttings (3) on each end of steering cylinder.

7) Self-propel Axle Flange Bearings

Lubricate 3-4 shots of grease into the grease ﬁttings (4) on both outer axle ﬂange bearings.

Lubricate the two ﬁttings (5) (one on each side) until you can visually see old grease being purged out of the side of the bearing.

Cutting Wheel PolyChain® - Check & Adjust Tension

THE MACHINE MUST BE SHUT DOWN WHEN CHECKING AND ADJUSTING BELT TENSION.

Using a belt gauge, check the PolyChain® tension by depressing the PolyChain® at the center of the span.

1. Remove the PolyChain® guard cover. The cutting wheel must be free to rotate (eg. not resting on ground).

• The belt should deﬂect 1/2” when 12-15 lbs. force is applied.

• Use 12 lbs. at 1/2” deﬂection when installing a new belt. After approximately 5-10 hours it will begin to seat in and drop down into the 12-15 lbs. range at 1/2” deﬂection. If the tension is acceptable, ignore steps 2-7. If the tension is too low, follow steps 2-7.

2. Loosen the two bolts (6) holding each bearing, enough to allow the bearings to slide easily.

3. Loosen the lock nuts (7) on the two bearing jacking screws (8) & (5).

4. Back-off the jacking screw (8) one full turn.

5. Tighten the jacking screw (9) one full turn.

6. Check the PolyChain® tension. If more tension is neces sary, repeat steps 4 and 5, and recheck the tension.

7. When the tension is cor rect, tighten the bearing bolts and jacking screw lock nuts, and reinstall the PolyChain® guard.

8. Check after 10 hours run time, and adjust if needed.

RG27/35/37 Operation • Service • Maintenance

Maintenance

2. Plunger Gage. The belt tension should be set to deﬂect 1/2” using 18-20 lbs force with a belt plunger gage.

If tension is acceptable, proceed to step 7.

3. Loosen the four engine mounting bolts (10) which secure the engine to the cutting boom.

4. Loosen the jam nut (11) on the engine adjusting nut. Turn the engine adjusting nut (12) clockwise to tighten the belts to the proper tension.

5. Check the belt tension again. If it is too loose, repeat step 4 and check again until it is properly set.

6. Retighten the engine bolts and locknut.

7. Replace the belt guard cover.

Hydraulic Pump Belt - Check & Adjust Tension

With the pump guard removed, deﬂect the belt at midway of the

Jackshaft V-Belt - Check & Adjust Tension

THE MACHINE MUST BE SHUT DOWN WHEN

CHECKING AND ADJUSTING BELT TENSION.

1. Remove the belt guard cover.

800.392.2686

span, using ﬁrm hand pressure. It should deﬂect approximately 1/8” with 8-10 lbs force when properly tensioned.

To Adjust Belt Tension:

1. Remove the pump guard and sheave guard.

2. Loosen the four pump bracket bolts (1).

3. To tighten the belt, tighten the adjusting screw (2).

4. Check the tension, and repeat until the proper tension is obtained.

5. Re-tighten the four pump bracket bolts (1).

6. Re-mount the pump guard and sheave guard. Firmly tighten all screws.

RG27/35/37 Operation • Service • Maintenance

Maintenance

Cutting Wheel & Teeth

Among the most critical elements of the stump cutter are the cutting teeth. They are also the most subject to damage and wear, as in the course of cutting stumps they may encounter a numerous assortment of abra sives and objects in the stump’s environment, such as dirt, stones, and occasionally a large rock or buried scrap. The loss of and wear of teeth can sig niﬁ cant ly impair the efﬁciency of a stump cutter and also result in overexposure of other teeth, resulting in premature failure or wear. There fore it is important to make frequent observation of the con di tion of all of the cutting teeth, and replace any missing and sig niﬁ cant ly worn teeth, as soon as feasible. Read all of the instructions which follow before changing cutting teeth.

Rayco Teeth

Rayco Manufacturing Inc. recommends only genuine Rayco Cutting Tools for use on Rayco Stump Cutters and Forestry Mowers. The use of non-Rayco cutting tools or cutting wheels will void the machine warranty. Rayco’s cutting tools, cutting wheels, and mower rotors are speciﬁcally designed to provide optimum performance in many ways. The use of non-Rayco parts will compromise this optimum performance.

• Safety: Rayco’s cutting tools are always attached with at least two fasteners. This redundant fastening system is far safer than those systems employing only one fastener. Rayco’s cutting tools are also more visible than some of the other cutting tools that are available. Some of the cutting wheels available today are “transparent” which can lead to an operator or bystander becoming confused as to the actual limits of the cutter tool.

• Proper Balance: Rayco’s cutting wheels and mower rotors are designed to achieve a dynamic balance that avoids vibration. Using other cutting tools can set up vibrations that will harm the machine’s structure & reduce bearing life.

• Number of Teeth for Depth of Cut: Rayco’s cutter wheels are designed to provide an economical cutting wheel assembly solution. The teeth are spaced to provide a maximum depth of cut for the number of teeth on the wheel. Some of the wheels available today use a large quantity of teeth to get the same depth of cut that a Rayco wheel will achieve with half the teeth. While the individual tooth cost may be less, the overall costs are more. Additionally, having too many teeth in the stump at any one time can lead to aggressive “grabbing” of the stump, causing the stump cutter to violently hop. This can cause injury to both man & machine.

• Tooth Projection: Rayco’s stump cutter teeth are speciﬁcally designed to ensure that the carbide tip can remove a clear “kerf” from the stump without the body of the tooth ever contacting the stump. This concept

reduces drag, which maximizes the use of the machine’s horsepower. This also reduces wear on the tooth body and on the attachment hardware. Many of the other cutting tool systems available today do not address this important aspect of cutting.

• Cutting Tool Dimensions: Rayco’s stump cutting teeth are carefully designed to have the proper size of carbide tip. Carbide tips ultimately become dull, and using large, oversized carbide tips will induce extreme impact energies into the machine’s structure.

• Debris Retention: Rayco’s cutting tool patterns are designed to minimize the retention of debris in between the cutting tools. This debris can cause imbalance. This debris can also become a dangerous projectile. NonRayco cutting tools may retain more debris.

Changing Teeth

BLOCK OR OTHERWISE SECURELY SUPPORT THE

CUTTING BOOM WH EN CHANGING TEETH.

Remove the socket head bolts from the teeth. (Use the 1/2” hex key provided with the machine.)

• Clean all dirt from the cutting wheel and teeth.

• Check the cutting wheel for cracks. Re place the wheel if it is cracked.

• Carefully select and insert new cutting teeth, properly positioning each tooth as shown in the diagram on the next page.

• Bolt the teeth to the cutting wheel (but not tightly until the pattern has been double-checked).

• After setting each tooth pair, tighten the socket head bolts to 135 to 145 foot-pounds.

Replacement teeth are available from your Rayco dealer or direct from Rayco. Refer to the Parts manual for part numbers

NOTICE

Read all of the following instructions before beginning to change the cutting teeth. The following illustrations represents the exact location required for positioning each tooth. Please follow the diagrams very closely for good cutting wheel performance.

The Cutter Wheel on the RG27/35 / RG27/35 uses 6 different types of SuperTeeth as shown below:

RG27/35/37 Operation • Service • Maintenance

Maintenance - Notes

17)Angle-Out Tooth - Part# 2933T (threaded) Qty of 9

22)Cutter Wheel - Part#28515 Qty of 1

Replacement teeth are available from your Rayco dealer or direct from Rayco.

NOTICE

DO NOT hammer the tip of a tooth. Due to the super hardness of the tooth, it is brittle and may chip from such treatment.

Sharpening Teeth

12)Straight Tooth - Part# 3144C (countersunk) Qty of 3.

15)Straight Tooth - Part# 3144T (threaded) Qty of 3

16)Angle-Out Tooth - Part# 2933C (countersunk) Qty of 9.

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DO NOT allow any tooth to wear too much before sharpening. Discard any tooth that has lost more than 1/8” of original bite.

Remove the tooth from the cutting wheel to be sharpened.

Tooth Sharpening Guidelines:

1. Obtain an unused tooth for comparison.

2. Discard any tooth that has lost more than 1/8” of original bite, whether lost through usage or grinding.

3. Grind off a minimal amount from the end, just enough to restore the original taper and radius on the end. The end of the cemented carbide tip and the end of the steel shank should be ﬂush after grinding.

NOTICE

Sharpening cemented carbide cutting teeth requires a special process. Have your teeth sharpened only by a qualified machinist for obtaining a proper edge and to avoid injury.

RG27/35/37 Operation • Service • Maintenance

Maintenance

PTO Clutch Brake Air Gap

Parts that DO NOT require maintenance

• Bearings - sealed for life of the clutch

• Armature, Rotors, Brake - wear evenly and can not be replaced individually.

• Coil - can not be removed.

Adjustment for Wear

• Clutches are adjustable for wear and can be adjusted to extend their overall life

• If a clutch fails to pull in or will not continue to pull in when it gets hot, the air gap may need adjustment

• It may be easier to take the PTO off to make adjustments

• A .015-.022 feeler gauge and a 9/16in. Open end box wrench is all that is needed

• There are three inspection slots on the brake shroud

• Place the feeler gauge in the slot between the armature and rotor

• Slowly tighten down the brake nut until there is contact with the feeler gauge

DO NOT SET GAP BELOW .015 INCHES. DAMAGE

TO CLUTCH MAY OCCUR

• Once gap is set rotate rotor and armature, check gap with feeler gauge and make slight adjustments if required

• Apply full voltage to the clutch and rotate it to make sure there is no contact with the brake shroud. If there is contact back off the brake nuts until no contact is felt

RG27/35/37 Operation • Service • Maintenance

Maintenance - Notes

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RG27/35/37 Operation • Service • Maintenance

Service

Troubleshooting

Engine

Use the following information to determine the source and solution to problems you may encounter related to the engine. This information can also be found in the Kubota Engine Operator’s Manual that shipped with this machine.

When it is difﬁcult to start the engine

Cause Countermeasures

Fuel is thick and

doesn’t ﬂow

Air or water

mixed in the

fuel system

Thick carbon

deposits on

oriﬁce of injec-

tion nozzle

Valve clearance

is wrong

Leaking valves ►Grind valves.

Fuel injection

timing is wrong

Engine oil

become thick

in cold weather

and engine

cranks slow

Low Compres-

sion

Battery is

discharged and

the engine will

not crank

►Check the fuel tank and fuel ﬁlter. Remove water, dirt, and other impurities. ►As all fuel will be ﬁltered by the ﬁlter, if there should be any water or other foreign matters on the ﬁlter, clean the ﬁlter with kerosene.

►If air is in the fuel ﬁlter or injection lines, the fuel pump will not work properly. To maintain proper fuel injection pressure, check carefully for loosened fuel line couplings, loose cap nut, etc. ►Loosen joint bolt stop fuel ﬁlter and air vent screws of fuel injection pump to eliminate all the air in the fuel system.

►This is caused when water or dirt is mixed in the fuel. Clean the nozzle injection place being careful not to damage the oriﬁce. ►Check to see if the nozzle is working properly or not. If not, install a new nozzle.

►Adjust the valve clearance to 0.145 to 0.185 mm (0.0057 to 0.0072 in.) when the engine is cold

►Adjust injection timing The injection timing 0.3 rad (18°) before top dead center.

►Change grade of oil according to the weather (temperature)

►Bad valve or excessive wear of rings, pistons, and liners cause insufﬁcient compression. Replace with new parts.

►Charge battery. ►In winter, always remove battery from the machine, charge fully and keep indoors. Reinstall in machine at times of use.

When output is insufﬁcient

Cause Countermeasures

Carbon stuck around oriﬁce of nozzle place

Compression is insufﬁcient. Leaking valves

Fuel is insufﬁcient

Overheating of moving parts

Valve clearance is wrong

Air cleaner is dirty

Fuel injection pressure is wrong

Injection pump wear

Cause Countermeasures

Lack of fuel ►Check the fuel tank and reﬁll with fuel, if

Bad nozzle ►If necessary, replace with a new nozzle.

Moving parts are overheated due to shortage of lubrication oil or improper lubrication

Cause Countermeasures

Fuel governing device bad

Fuel is extremely poor quality

Nozzle is bad ►If necessary, replace with a new nozzle.

Combustion is incomplete

►Clean oriﬁces and needle valve being very careful not to damage the nozzle oriﬁce.. ►Check nozzle to ensure that It is good. If not, replace the nozzle..

►Bad valve and excessive wear of rings, pistons, and liners cause insufﬁcient compression. Replace with new parts.. ►Grind valves..

►Check fuel system..

►Check lubricating oil system. ►Check to see if lubricating oil ﬁlter is working properly. ►Filter element deposited with impurities would cause poor lubrication. Change element. ►Check that the clearance of bearings are within factory specs. ►Check injection timing.

►Adjust the valve clearance to 0.145 to

0.185 mm (0.0057 to 0.0072 in.) when the engine is cold

►Clean the element every 100 hours of operation.

►Adjust to proper pressure:

13.7 Mpa (140kgf/cm2, 1991 psi)

►Do not use poor quality fuel as it will cause wear of the pump. Only use No.2-D diesel fuel. ►Check the fuel injection pump element and delivery valve assembly and replace as necessary.

When engine suddenly stops

necessary. ►Also check the fuel system for air or leaks.

►Check amount of engine oil with oil level gauge. ►Check lubricating oil system. ►At every 2 times of oil change, the oil ﬁlter cartridge should be replaced. ►Check to see if the engine bearing clearances are within factory specs..

When color of exhaust is especially bad

►Contact dealer for repairs.

►Select good quality fuel. Use No.2-D diesel fuel only..

►Cause is poor atomization, improper injection timing, etc. Because of trouble in injection system or in poor valve adjustment or compression leakage, poor compression, etc. Check for cause..

When engine overheats

Cause Countermeasures

Engine oil

insufﬁcient

Fan belt broken

or elongated

Coolant insuf-

ﬁcient

Excessive

concentration

of antifreeze

Radiator net

or ﬁn clogged

with dust

Inside of radia-

tor or coolant

ﬂow route corroded

Fan, radiator,

or radiator cap

defective

Thermostat

defective

temperature

gauge or sen-

sor defective

Overload

running

Head gasket

defective or

water leakage

Incorrect injec-

tion timing

Unsuitable fuel

used

Cause Countermeasures

Engine revolu-

tion suddenly

increases or

decreases

Unusual sound

is heard sud-

denly

Color of ex-

haust suddenly

turns dark

Bearing parts

are overheated

Oil lamp lights

up during operation

►Check oil level. Reﬁll as necessary

►Change belt or adjust belt tension.

►Replenish coolant.

►Add water only or change to coolant with the speciﬁed mixing ratio.

►Carefully clean net or ﬁn.

►Clean or replace radiator and parts.

►Replace defective parts.

►Check thermostat and replace if necessary.

►Check temperature with thermometer and replace if necessary.

►Reduce load.

►Replace parts.

►Adjust to proper timing.

►Use the speciﬁed fuel.

When engine must be stopped immediately

►Check the adjustments, injection timing, and fuel system.

►Check all moving parts carefully..

►Check the fuel injection system, especially the fuel injection nozzle.

►Check the lubricating system.

►Check the lubricating system. ►Check to see engine bearing clearances are within factory specs. ►Check the function of the relief valve in the lubricating system. ►Check the pressure switch. ►Check the ﬁlter base gasket.

RG27/35/37 Operation • Service • Maintenance

Service

800.392.2686

RG27/35/37 Operation • Service • Maintenance

Wiring Schematic

RG27/35/37 Operation • Service • Maintenance

Wiring Schematic

800.392.2686

RG27/35/37 Operation • Service • Maintenance

Hydraulic Schematic - RG27 (802591-D)

P P

RG27 BLADE OPTION:

802597 - HYD. KIT

STANDARD ON RG35

OVER CENTER VALVE (K) + FITTINGS, LIFT CYLINDER (N) + FITTINGS, AND HOSES 8 AND 10 ARE FROM HOSE KIT 802591

RG27/35/37 Operation • Service • Maintenance

Hydraulic Schematic - RG27 (802591-D)

800.392.2686

B C D

F G H

L M N

P Q

ITEM

1 738004 1 12579 1 12575 1 761906 1 760115 1 738008 1 801152 1 802526 1 738011 1 1200015 1 801738 1 29193 1 802488 1 801256 1 802228

QTY.

PART #

3 BANK VALVE

HYDRAULIC TANK

FUEL TANK

HYDRAULIC FILTER ASM.

PUMP - HYDRAULIC

VALVE - SWING CONTROL

DUAL COUNTER-BALANCE W/PILOT PORT

MOTOR DRIVE/BRAKE PARKER

VALVE-LOCK SWING

OVER CENTER VALVE

CYLINDER-STEER

CYLINDER-SWING

CYLINDER-LIFT

VALVE-SPOOL

VALVE-1 SPOOL MOTOR

DESCRIPTION

RG27/35/37 Operation • Service • Maintenance

Hydraulic Schematic - RG37 (802846)

P P

RG27/35/37 Operation • Service • Maintenance

DUAL COUNTER-BALANCE W/PILOT PORT

MOTOR DRIVE/BRAKE PARKER

Hydraulic Schematic - RG37(802846)

800.392.2686

B C D

F G H

J K

N P Q R

ITEM

1 802819 1 12579 1 12575 1 761906 1 764215 1 738008 1 801152 1 802526 1 738011 1 1200015 1 801738 1 29193 1 802488 3 1200105 1 802228 1 24237

QTY.

PART #

4 BANK VALVE(RG35)

HYDRAULIC TANK

FUEL TANK HYDRAULIC FILTER ASM. PUMP - TANDEM .31/.31

VALVE - SWING CONTROL

VALVE-LOCK SWING

OVER CENTER VALVE

CYLINDER-STEER

CYLINDER-SWING

CYLINDER-LIFT VALVE-SPOOL

VALVE-1 SPOOL MOTOR

CYLINDER-BLADE

DESCRIPTION

RG27/35/37 Operation • Service • Maintenance



Speciﬁcations

 

SERVICINGTAPERBUSHINGS



RG27/35/37 Operation • Service • Maintenance

Speciﬁcations

Lubricating Grease

All Rayco products are completely serviced at the factory before shipping. The operator should check all grease ﬁttings to familiarize with the location and correct service schedule plan.

Use the normal shutdown procedure (See “Operating Instructions”), before lubricating the machine.

Apply grease using a standard low pressure/low volume grease gun. Do not use a pneumatic grease gun.

Lubricate with a high quality NLGI No.2 multipurpose bearing grease having rust inhibitors, good water resistance, antioxidant additives, and a minimum viscosity of 150 cSt at 40°C and suitable to operate continuously at 212°F / 100°C or higher.

Rayco recommends the following bearing grease that meets this spec:

Chevron Delo EP2…………….189 cSt @ 40°C / 17.5 cSt @ 100°C / Temp range -40°C to 177°C (-40°F to 350°F) Texaco Multifak EP2………….173 cSt @ 40°C / 15.6 cSt @ 100°C / Temp range -34°C to 121°C (-30°F to 250°F) Citgo Premium Lithium EP2….173 cSt @ 40°C / 14.9 cSt @ 100°C / Temp range -15°C to 121°C ( 5°F to 250°F) Shell Alvania EP2…….……….189 cSt @ 40°C / 15.6 cSt @ 100°C / Temp range -20°C to 100°C ( -4°F to 212°F)

Note: for extreme cold temperature areas a No. 0 grade grease may be used.

Before lubricating make sure all grease ﬁttings and the nozzle of the grease gun is clean.

Cold Weather Lubricants

Before attempting to start the engine, make sure that the oil in the engine, the transmission and the hydraulic system are ﬂuid enough to ﬂow. Check the oil by removing the dipsticks. If the oil will drip from the dipstick, then the oil is ﬂuid enough to start the engine. Do not use oil that has been diluted with kerosene. Kerosene will evaporate in the engine.

If the viscosity of the oil is changed for colder weather, also change the ﬁlter element. If the ﬁlter is not changed, the ﬁlter element and the ﬁlter housing can become a solid mass. Drain all hydraulic cylinders and lines. After you change the oil, operate the equipment in order to circulate the thinner oil.

If continuous ambient operating temperatures are below -10°C (+14°F), oil change intervals should be increased. Consult the Engine Operator Manual for details.

When you start an engine or when you operate an engine in ambient temperatures that are below -20°C (-4°F), use base oils that can ﬂow in low temperatures. These oils have lubricant viscosity grade of SAE 0W or SAE 5W.

When you start an engine or when you operate an engine in ambient temperatures that are below

-30°C (-22°F), use a Synthetic base stock multigrade oil. The oil should have lubricant viscosity grade of 0W or 5W. Use an oil with a pour point that is 5-10 degrees lower than the coldest ambient temperature.

Hydraulic and track drive oil should meet all previous speciﬁcations and have a pour point at least 7.8°C (14°F) lower than the coldest expected ambient temperature.

800.392.2686

RG27/35/37 Operation • Service • Maintenance

Speciﬁcations

RAYCO LUBRICATION & FLUID SPECIFICATIONS

Engine Oil

During the initial break-in period, the engine will consume more oil than usual.

Check the engine oil level daily.

See the Engine Operator Manual for engine oil speciﬁcations.

Engine Fuel

See the Engine Operator Manual for engine fuel speciﬁcations.

USE ULTRA LOW SULFUR PREMIUM DIESEL FUEL ONLY.

Hydraulic Oil (Petroleum-Mineral Base)

Your Rayco machine is ﬁlled at the factory with Conoco Powerﬂow AW HVI 46 Hydraulic Fluid. This oil is formulated to provide the proper operating characteristics in a wide range of climates. When reﬁlling, always use Conoco Powerﬂow AW HVI 46 or one of the recommended brands below. Failure to use the proper hydraulic oil can lower performance and shorten the life of critical components. Do NOT mix different types of hydraulic ﬂuids!

Rayco’s oil speciﬁcations address the following concerns:

• High-temperature viscosity

• Low-temperature ﬂow properties

• Viscosity lifespan

• High-pressure wear characteristics

• Filterability

• Multi-metal compatibility in the presence of water

Rayco recommends the following hydraulic oils for your Rayco machine:

Conoco-Phillips MegaFlow AW HVI 46………… Viscosity 6.8 cSt @ 100°C / 46 cSt @ 40°C / Pour -37°C (-35°F) Shell Tellus T 46……………………………………Viscosity 6.7 cSt @ 100°C / 46 cSt @ 40°C / Pour -30°C (-22°F) Mobil DTE 15M…………………………………… Viscosity 7.8 cSt @ 100°C / 46 cSt @ 40°C / Pour -36°C (-33°F)

If choosing an oil other than those recommended above, the following speciﬁcations should be used:

• Kinematic Viscosity: 6-7 cSt @ 100°C / 46 cSt @ 40°C

• Pour point: -30°C (-22°F) or colder

• Viscosity stabilizers, excellent resistance to viscosity breakdown (shear).

• Anti-wear, Anti-foam formulation, for use in all pump types at all pressures.

• Low-zinc additives; zinc levels should not exceed .08% of total weight

Clean hydraulic oil is critical to achieve high performance and get long life from your hydraulic system. The oil and ﬁlter should be changed in accordance with the instructions contained in the “Maintenance Intervals” section of your manual. The hydraulic oil should be changed immediately if it appears dirty or smells burnt.

Biodegradable Hydraulic Oil

Panolin HLP Synthetic Ester Base VG46 is the only approved Bio-Degradable Hydraulic oil for Rayco machines. All mineral base oils must be completely drained out of system and components before reﬁlling with Panolin HLP Synthetic VG46 Bio-degradable oil.

Gearbox Fluid

The RG27/35 uses a 90 degree gearbox to transfer power from the motor to the cutting wheel. The gearbox requires synthetic 80W 90 gear oil and should be changed in accordance with the “Maintenance Intervals” section of this manual.

Chain Lubrication

The chain can be lubricated using premium lithium EP semi-ﬂuid grease NLGI-00-000 Rayco #30088 ﬁlled ~3/4” above chain or ~2 qts.

RG27/35/37 Operation • Service • Maintenance

Speciﬁcations

RAYCO COOLANT SPECIFICATIONS

Coolant / Antifreeze Recommendations

Most commercial antifreezes are formulated for gasoline engine applications and will, therefore, have high silicate content. These antifreezes are intended for aluminum automotive engines and are unacceptable for diesel engines. Use antifreeze that is formulated with a low silicate level and the proper coolant additives for heavy duty diesel engines.

Your Rayco machine is ﬁlled at the factory with Chevron Heavy Duty Phosphate Free Coolant formulated to meet the heavyduty engine coolant speciﬁcations of TMC RP329 and ASTM D 6210. This coolant is manufactured from ethylene glycol and a highly effective, heavy duty corrosion inhibitor package that is phosphate free and contains nitrates and molybdates. It is compatible with other traditional heavy duty coolants containing supplemental coolant additives (SCA’s).

Rayco’s coolant speciﬁcation address the following concerns:

• Effective corrosion protection for aluminum, brass, cast iron, steel, solder, and copper.

• Low silicate formulation.

• Protects against winter freeze up and minimizes the chance of summer boil over.

• Phosphate free formula reduces hardwater scale formation.

• Suitable for diesel, gasoline and natural gas powered engines.

• Compatible with other major brands of coolant and heavy duty diesel supplemental additives.

Rayco recommends the following coolant type for your Rayco machine:

Chevron HD Coolant (Phosphate-Free) Concentrate P/N 227036 / 227043 with bitterant …

-34°F @ 50% mx - 62°F @ 60% mix Chevron HD Coolant (Phosphate-Free) Diluted P/N 227034 / 227045 with bitterant……….

-34°F @ 50% mix -,62°F @ 60% mix

Coolant Maintenance:

• Maintain freeze point between -15°F and -62°F. A 50% mixture has a freeze point of -34°F (refer to freeze point above).

• Use commercially available test strips for both nitrate and molybdate.

• Maintain nitrate levels between 800ppm and 2300ppm.

• Check levels of nitrate and molybdate every 250 hrs.

• Add SCA’s based upon the engine OEM recommendations.

• Top up low coolant systems with a 50% mixture as required.

• Follow the engine OEM procedures when doing a complete change-out.

Make Proper Antifreeze Additions

Adding pure antifreeze as a makeup solution for cooling system top-up is an unacceptable practice. It increases the concentration of antifreeze in the cooling system which increases the concentration of dissolved solids and undissolved chemical inhibitors in the cooling system. Add antifreeze mixed with water to the same freeze protection as your cooling system.

Use the chart below to assist in determining the concentration of antifreeze to use.

NOTICE: Additives eventually lose their effectiveness and must be recharged with additional supplement coolant additives available in the form of liquid coolant conditioner. See TESTING ENG INE COO LANT and REPLEN ISHING S UPPLEM ENT COOLANT ADDITIVES (SCA’S) BETWEEN COOLANT CHANGES, as described in the Engine Operator’s Manual. For more detailed explanation on the cooling system refer to the Fuels, Lubricants, and Coolant section of the Engine Operator’s Manual shipped with this machine.

Chevron HD Coolant Protection Temperature (w/ 15 psi cap) Concentration

Boiling Protection to -129.4°C (265°F) 50% antifreeze and 50% water

Freeze Protection to -24.4°C (-12°F) 40% antifreeze and 60% water

Freeze Protection to -36.7°C (-34°F) 50% antifreeze and 50% water

Freeze Protection to -52.2°C (-62°F) 60% antifreeze and 40% water

800.392.2686

RG27/35/37 Operation • Service • Maintenance

RG27 - Speciﬁcations

General

Weight: 1770 Lbs Maximum

Length: 114” Maximum (Arm in storage position)

Height: 52” Maximum

Width: 35” Maximum

Width with Dual Wheels: 52.5” Maximum

Chip Collection Capacity: 12.5 cu. Ft Minimum

Chassis Design: Electrically welded 3”x3”x3/16” Square Steel Tubing, Formed 1/4” & 3/8” Gr. 80 steel

Self-Propel Means: Self-propelled with variable speed control and automatic hill brake

Operator Control Console: Controls mounted On Swing-away Arm with a Fully Covered Valve Bank

Swing Pivot Bearings: 9” diameter slewing ring

Brakes: Rear - Spring Applied Hydraulic Release

Tires: 18 x 8.5-10 R4 4 ply

Drive Axle Bearings: 1-1/2” ﬂange roller minimum w/grease ﬁtting

Engine

Model: Briggs & Stratton Vanguard 27hp Required

Main Bearings: 2 Minimum

Number of cylinders: 2

Bore: 3.37”

Stroke: 3.071”

Displacement: 54.68 cu. In Minimum

Maximum no load RPM: 3600

Gross HP at maximum no load RPM: 27HP Minimum

Maximum rated torque: 39.5ft lbs @ 2500 RPM Minimum

Cooling medium: Unrestricted Air Flow Required

Air Cleaner: Heavy Duty, Dual Element, Dry type

Oil Filter: Spin-on type

Fuel Tank Capacity: 6.5 gallons Minimum

Electrical System: 12 volts/15 AMP Alternator Required

Hydraulic System

Pump Displacement: 0.37 cu. In. Minimum

Pump Gallonage @ 3600 RPM: 2.6 G PM

System Pressure Relief: 2500 PSI / 3500 PSI

Oil Tank Capacity: 2 Gallons Minimum

Oil Filter: 10-Micron Full Flow

Oil Type: Tellus T46

Valve: Spring-Centered Series

Hose Capacity: 3000 PSI Working Pressure

Swing Cylinder: Minimum 3” Bore, 6” Stroke, 1-1/4” Rod Minimum

Lift Cylinder: Minimum 2.5” Bore, 8” Stroke, 1-1/4” Rod

Hydraulic Wheel Drive Motor: 10.4 cu. In/rev

Drive Chain: 50R Series Minimum

Fittings: O-ring Required

Cutting Wheel

Wheel Diameter: 17.25” Maximum

Wheel Thickness: 1” Minimum

Cutting Wheel Bearings: 1.5” Pillow Block Minimum

RPM: 1170 Approximately

Intermediate Belt: Banded “A” type 3-section V-belt

Drive Chain: Gates Polychain GT, Low Maintenance

Jackshaft Bearings: 1.5” Pillow Block Minimum

Cutting Teeth: RAYCO Super tooth™ forged,One-piece, with tungsten carbide tips.

Cutter Teeth Quantity: 18 Maximum

Belt Guard: Steel required

Chip Retaining Curtains: Fabric impregnated rubber

Cutter Wheel Engagement: Electromagnetic clutch with the “Quick Stop” brake system

Cutting Range (without repositioning)

Below Ground Level: 12” Minimum

Above Ground Level: 24.5”Minimum

Cutting Width: 51” Minimum

Forward - Backward: Unlimited in Drive Mode

Options

TRSJR Trailer

Command Cut

Dual Wheel Tires (Requires TRSJRW or TRSJRWB)

Blade

Pintle Hitch

Unit shall be covered on a minimum of 1-year warranty on parts and workmanship. The engine manufacturer shall provide a 2-year warranty.

The tree stump cutting machine shall be new and unused that meets the technical description above and shall be produced on a manufacturer whose stump cutting machines have had a successful ﬁeld performance record of at least ten consecutive years to date. Unit bid must be a current production model with at least 10 user references of speciﬁed model.

Brochures and complete engineering speciﬁcations data must accompany bid.

RG27/35/37 Operation • Service • Maintenance

RG35-Speciﬁcations

General

Weight: 1830 Lbs Maximum

Length: 114” Maximum (Arm in storage position)

Height: 52” Maximum

Width: 35” Maximum

Width with Dual Wheels: 52.5” Maximum

Chip Collection Capacity: 12.5 cu. Ft Minimum

Chassis Design: Electrically welded 3”x3”x3/16” Square Steel Tubing, Formed 1/4” & 3/8” Gr. 80 steel

Self-Propel Means: Self-propelled with variable speed control and automatic hill brake

Operator Control Console: Controls mounted On Swing-away Arm with a Fully Covered Valve Bank

Swing Pivot Bearings: 9” diameter slewing ring

Brakes: Rear - Spring Applied Hydraulic Release

Tires: 18 x 8.5-10 R4 4 ply

Drive Axle Bearings: 1-1/2” ﬂange roller minimum w/grease ﬁtting

Engine

Model: Briggs & Stratton Vanguard 35hp Required

Main Bearings: 2 Minimum

Number of cylinders: 2

Bore: 3.36”

Stroke: 3.40”

Displacement: 60.5 cu. In Minimum

Maximum no load RPM: 3600

Gross HP at maximum no load RPM: 35H P Minimum

Maximum rated torque: 39.5ft lbs @2500 RPM Minimum

Cooling medium: Unrestricted Air Flow Required

Air Cleaner: Heavy Duty, Dual Element, Dry type

Oil Filter: Spin-on type

Fuel Tank Capacity: 6.5 gallons Minimum

Electrical System: 12 volts/15 AMP Alternator Required

Hydraulic System

Pump Displacement: 0.62 cu. In. Minimum

Pump Gallonage @ 3600 RPM: 5.2 G PM

System Pressure Relief: 2500 PSI Aux / 3500 PSI Drive Minimum

Oil Tank Capacity: 2 Gallons Minimum

Oil Filter: 10-Micron Full Flow

Oil Type: Tellus T46

Valve: Spring-Centered Series

Hose Capacity: 3000 PSI Working Pressure

Swing Cylinder; Minimum 3” Bore, 6” Stroke, 1-1/4” Rod Minimum

Lift Cylinder: Minimum 2.5” Bore, 8” Stroke, 1-1/4” Rod

Hydraulic Wheel Drive Motor: 10.4 cu. In/rev

Drive Chain: 50R Series Minimum

Fittings: O-ring Required

Cutting Wheel

Wheel Diameter: 17.25” Maximum

Wheel Thickness: 1” Minimum

Cutting Wheel Bearings: 1.5” Pillow Block Minimum

RPM: 1170 Approximately

Intermediate Belt: Banded “A” type 3-section V-belt

Drive Chain: Gates Polychain GT, Low Maintenance

Jackshaft Bearings: 1.5” Pillow Block Minimum

Cutting Teeth: RAYCO Super tooth™ forged, One-piece, with tungsten carbide tips.

Cutter Teeth Quantity: 18 Maximum

Belt Guard: Steel required

Chip Retaining Curtains: Fabric impregnated rubber

Cutter Wheel Engagement: Electromagnetic clutch with the “Quick Stop” brake system

Cutting Range (without repositioning)

Below Ground Level: 12” Minimum

Above Ground Level: 24.5”Minimum

Cutting Width: 51” Minimum

Forward - Backward: Unlimited in Drive Mode

Options

TRSJR Trailer

Command Cut

Dual Wheel Tires (Requires TRSJRW or TRSJRWB)

Blade (option is for removal of standard blade)

Pintle Hitch

Unit shall be covered on a minimum of 1-year warranty on parts and workmanship. The engine manufacturer shall provide a 2-year warranty.

800.392.2686

RG27/35/37 Operation • Service • Maintenance

RG37 - Speciﬁcations

General

Weight: 1830 Lbs Maximum

Length: 114” Maximum (Arm in storage position)

Height: 52” Maximum

Width: 35” Maximum

Width with Dual Wheels: 52.5” Maximum

Chip Collection Capacity: 12.5 cu. Ft Minimum

Chassis Design: Electrically welded 3”x3”x3/16” Square Steel Tubing, Formed 1/4” & 3/8” Gr. 80 steel

Self-Propel Means: Self-propelled with variable speed control and automatic hill brake

Operator Control Console: Controls mounted On Swing-away Arm with a Fully Covered Valve Bank

Swing Pivot Bearings: 9” diameter slewing ring

Brakes: Rear - Spring Applied Hydraulic Release

Tires: 18 x 8.5-10 R4 4 ply

Drive Axle Bearings: 1-1/2” ﬂange roller minimum w/grease ﬁtting

Engine

Model: Briggs & Stratton Vanguard 37hp Required

Main Bearings: 2 Minimum

Number of cylinders: 2

Bore: 3.36”

Stroke: 3.40”

Displacement: 60.5 cu. In Minimum

Maximum no load RPM: 3600

Gross HP at maximum no load RPM: 37HP Minimum

Maximum rated torque: 39.5ft lbs @2500 RPM Minimum

Cooling medium: Unrestricted Air Flow Required

Air Cleaner: Heavy Duty, Dual Element, Dry type

Oil Filter: Spin-on type

Fuel Tank Capacity: 6.5 gallons Minimum

Electrical System: 12 volts/15 AMP Alternator Required

Hydraulic System

Pump Displacement: 0.62 cu. In. Minimum

Pump Gallonage @ 3600 RPM: 5.2 G PM

System Pressure Relief: 2500 PSI Aux / 3500 PSI Drive Minimum

Oil Tank Capacity: 2 Gallons Minimum

Oil Filter: 10-Micron Full Flow

Oil Type: Tellus T46

Valve: Spring-Centered Series

Hose Capacity: 3000 PSI Working Pressure

Swing Cylinder; Minimum 3” Bore, 6” Stroke, 1-1/4” Rod Minimum

Lift Cylinder: Minimum 2.5” Bore, 8” Stroke, 1-1/4” Rod

Hydraulic Wheel Drive Motor: 10.4 cu. In/rev

Drive Chain: 50R Series Minimum

Fittings: O-ring Required

Cutting Wheel

Wheel Diameter: 17.25” Maximum

Wheel Thickness: 1” Minimum

Cutting Wheel Bearings: 1.5” Pillow Block Minimum

RPM: 1170 Approximately

Intermediate Belt: Banded “A” type 3-section V-belt

Drive Chain: Gates Polychain GT, Low Maintenance

Jackshaft Bearings: 1.5” Pillow Block Minimum

Cutting Teeth: RAYCO Super tooth™ forged, One-piece, with tungsten carbide tips.

Cutter Teeth Quantity: 18 Maximum

Belt Guard: Steel required

Chip Retaining Curtains: Fabric impregnated rubber

Cutter Wheel Engagement: Electromagnetic clutch with the “Quick Stop” brake system

Cutting Range (without repositioning)

Below Ground Level: 12” Minimum

Above Ground Level: 24.5”Minimum

Cutting Width: 51” Minimum

Forward - Backward: Unlimited in Drive Mode

Options

TRSJR Trailer

Command Cut

Dual Wheel Tires (Requires TRSJRW or TRSJRWB)

Blade (option is for removal of standard blade)

Pintle Hitch

Unit shall be covered on a minimum of 1-year warranty on parts and workmanship. The engine manufacturer shall provide a 2-year warranty.

RG27/35/37 Operation • Service • Maintenance

800.392.2686

RG27/35/37 Operation • Service • Maintenance

Service Parts

EnginE Oil FiltEr - 750200

FuEl FiltEr - 763494

Hydraulic rEturn FiltEr assEmbly- 761906 FiltEr ElEmEnt - 761908 dipstick - 761910 rEstrictiOn indicatOr - 761909

OutEr air FiltEr cartridgE - 780270 innEr air FiltEr cartridgE - 750202 sErvicE indicatOr - 761600

FuEl cap - 801682

EnginE kEy - 755553

Parts Manual - pmrg27-35-37

OPeratiOn Manual - Obrg27-35-37

OPeratiOn & service Manual - Osmrg27-35-37

cuttEr WHEEl tEEtH straight Counter bore - 3144c

Straight Threaded - 3144T Angle-Out Counter bore - 2933C Angle-Out Threaded - 2933T

(refer to page 33 for more details)

RAYCO WARRANTY CERTIFICATE

A. General Outline

Rayco Manufacturing, Inc. warrants to the ﬁrst user that the products it supplies will be free from defects in material and workmanship under normal and proper usage for a period of 365 days from the date of delivery to the ﬁrst user. In addition, with respect to “Mini Work-Force” models, the mainframe and control bar will be free from defects in material and workmanship under normal and proper usage for a period of two (2) years from said date of delivery.

This warranty does not cover and Rayco makes no warranties with respect to (i) any product that has been subject to abuse, misuse, misapplication, neglect, alteration or accident; to improper or incorrect repair or maintenance; or to abnormal conditions of use, temperature, moisture, dirt or corrosive matter; and (ii) any material, parts or other components that are manufactured by someone other than Rayco, which items carry only the manufacturer’s warranty, if any. Furthermore, this warranty does not cover expendable parts.

Individual components such as engines, engine drive systems, batteries, and hydraulic components, etc. shall be covered by standard warranties of their respective manufacturers. Any claims must be submitted within 30 days of the repair.

B. Individual Components

1.Engines

a. All engines have speciﬁc warranties issued by OEM

and honored thru their respective dealer.

2. Hydraulic Components

a.Hydraulic components have variable warranties. Rayco

must preauthorize all hydraulic component product warranties prior to removal from the machine, and all warranty considerations are the sole responsibility of the manufacturer.

3. Batteries

a. Batteries have a warranty that is honored thru

manufacturer. For warranty service, the purchaser is to contact manufacturer directly.

• 4.Various Components

a. Belts will be covered under warranty only if Rayco

receives warranty from their supplier.

b. Sprockets Sheaves have a six month limited

warranty.

c. Electric clutches have a six month limited warranty.

d. Hydraulic Cylinders will be covered under warranty

only if Rayco receives warranty from their supplier.

5. Pockets and Teeth

a. Pockets and Teeth will be covered under warranty

only if they are defective before they are mounted on a stump grinder. Once they are used, all warranty stops.

C. Items not Covered

Rayco is not responsible for the following:

1. Premiums charged for overtime labor requested by the purchaser.

2. Transporting the product to and from the place at which warranty work is performed.

3. Any product that has been altered or modiﬁed in ways not approved by Rayco.

4. Depreciation or damage caused by normal wear, lack of reasonable and proper maintenance, failure to follow operating instructions, misuse, lack of proper protection during storage, or accident.

D. Unapproved Service Modiﬁcation

Rayco is relieved of its obligation under this warranty if:

1. Service (other than normal maintenance and replacement of service items) is performed by someone other than an authorized Rayco dealer; or

2. The product is modiﬁed or altered in ways not approved by Rayco.

E. Obtaining Warranty Service

To obtain performance of this warranty, the original retail purchaser must request warranty service from a Rayco dealer authorized to sell the product to be serviced. When making such a request, the purchaser must present evidence of the product’s delivery date, make the product available at the dealer’s place of business, and inform the dealer in what way the purchaser believes the product to be defective.

Warranty repairs can be made in the ﬁeld if the purchaser and servicing dealer so desire. However, travel time expense to and from the job site will be purchaser or dealer responsibility.

F. No Implied Warranty or Other Representation

Where permitted by law, neither Rayco nor any company afﬁliated with it makes any warranties, representations or promises, expressed or implied, as to the quality or performance, or freedom from defect of its products other than those set forth above, and NO IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS IS MADE.

G. Limitation of Purchaser’s Remedies

Where permitted by law, the purchaser’s only remedies in connection with the branch of performance on any warranty on any Rayco product are those set forth on this page. In no event will the dealer and or Rayco be liable for incidental or consequential damages, including but not limited to: loss of proﬁts, rental of substitute equipment, or other commercial loss.

H. No Dealer Warranty

The selling dealer makes no warranty of his own on any item warranted by Rayco, and makes no warranty on other items unless he delivers to the purchaser a separate written warranty certiﬁcate specially warranting the item. A dealer has no authority to make any representation to promise on behalf of Rayco, or to modify the terms or limitations of this warranty in any way.

If you have a situation where you are not sure if a component is covered under warranty, please do not hesitate to contact us. Rayco wants you and your customer to be 100% satisﬁed with our products and service.

Read and understand all instructions before attempting to operate this machine. This manual should be readily available for reference at all times.

Additional copies of this manual may be purchased. Contact your Authorized Rayco Dealer or Rayco Manufacturing Inc.

RAYCO Manufacturing, Inc. 4255 E Lincoln Way Wooster, OHIO 44606 U.S.A.

800.392.2686 raycomfg.com

Think Smart, Think Safe……… We care about your safety. When operating your RAYCO® machinery always wear an approved helmet complete with ear muffs, face shield and the proper eye wear. Never operate under the inﬂuence of alcohol or drugs. Know your RAYCO, read and understand your owner’s manual cover to cover.

RAYCO Manufacturing Inc. retains the right to make changes in design and speciﬁcations; engineering; add or remove features; add improvements; or discontinue manufacturing at any time without notice or obligation.

Thank you for buying and using RAYCO Equipment.

“The Stump Cutter People”

Rayco Super Jr RG27, Super Jr RG35, Super Jr RG37 Operator, Service, Maintenance Manual

Specifications and Main Features

Frequently Asked Questions

User Manual