Efco PT 2700 Operator Manual & Service Manual

PT 2700 - PTX 2700

(1.86 cu.in)

OPERATOR’S INSTRUCTION MANUAL MANUEL D’UTILISATION ET D’ENTRETIEN MANUAL DE INSTRUCCIONES

INTRODUCTION

To correctly use the pole pruner and prevent accidents, do not start work without having first carefully read this manual. You will find explanations concerning the operation of the various parts plus instructions for necessary checks and relative maintenance.

Note: Illustrations and specifications in this manual may vary according to Country requirements and are subject to change without notice by the manufacturer.

THE OPERATOR’S MANUAL

Your operator’s manual is for your protection. READ IT. Keep it in a safe place for reference. Know what you are doing before you begin assembly of the unit. Proper preparation and upkeep go hand-in-hand with satisfactory performance of the pole pruner and safety. Contact your dealer or the distributor for your area if you do not understand any of the instructions in this manual. In addition to the operating instructions, this manual contain paragraphs that require your special attention. Such paragraphs are marked with the symbols described below: Warning: where there is a risk of an accident or personal injury or serious damage to property.

Caution: where there is a risk of damaging the machine or its individual components.

WARNING - To ensure safe and correct operation of the pole pruner, this operator's manual should always be kept with or near the machine. Do not lend or rent your pole pruner without the operator's instruction manual.

WARNING: Allow only persons who understand this manual to operate your pole pruner.

TABLE OF CONTENTS

PRODUCT IDENTIFICATION

Pole pruner Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

SAFETY

Understanding Safety Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

State and Local Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

SAFETY RULES

Basic Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Fuel Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Operation and Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Precautions to Reduce Vibration Risk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Maintenance Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

ASSEMBLY

Cutting Device Assembling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

OPERATION

Preparing to Work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Operating Techniques . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Chain Tension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Breaking-in the Chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Fueling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Chain Oil System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Preparation for Cutting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Starting the Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Breaking-in the Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Stopping the Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Working Techniques . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Pruning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

MAINTENANCE

Maintenance Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Assembling the Bar and Chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Chain Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Guide Bar Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Carburetor Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Fuel Filter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Starter Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Spark Plug. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Muffler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Spark Arresting Muffler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Gear Housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

TROUBLESHOOTING

Using Troubleshooting Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

STORAGE

Storing Pole pruner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

TECHNICAL DATA

PT 2700. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

PTX 2700. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

PRODUCT IDENTIFICATION

Pole pruner Components

Harness attachment1. Throttle Trigger2. Muffler Guard3. Spark plug4. Throttle Trigger Lockout5. On/Off Switch6. Shaft arm7. Locking ring nut8. Cutting implement EP 120 EF9. Guide Bar10.

Chain11. Guide Bar Adjusting Screw12. Handle (PT 2700)13. Starter Handle14. Fuel Tank Cap15. Air Filter Cover16. Choke Lever17. Oil Tank Cap18. Bar Cover19. Combination Wrench20.

Understanding Safety Labels

SAFETY

- This symbol indicates Warning, and Caution.

- Your manual contains special messages to bring attention to potential safety concerns, machine damage as well as helpful operating and servicing information. PLEASE READ ALL THE INFORMATION CAREFULLY TO AVOID INJURY AND MACHINE DAMAGE.

- The machineis not electrically insulated so avoid contact with high voltage lines. Never approach the implement at less than 10 metres from electric lines. Keep bystanders away 15 m.

- Wear eye, hearing and head protection when operating this equipment.

- Wear non-slip, heavy-duty protective gloves when handling.

- Wear safety strong shoes or boots having skid-proof sole and anti-piercing insert.

- WARNING! The surface can be hot!

State and Local Requirements

Your pole pruner is equipped with a temperature limiting muffler, a spark arresting screen in order to comply with the requirements of SAE Recommended Practice J335 and California Codes 4442 and 4443.

All national forest land and land managed by the states of California, Maine, Washington, Idaho, Minnesota, New Jersey and Oregon require internal combustion engines to be equipped with a spark arrester screen by law. Other states and federal agencies are enacting similar regulations. If you

operate a pole pruner in a state or locale where such regulations exist, you are legally responsible for maintaining the operating condition of these parts. Failure to do so is a violation of a law. Spark arrester

maintenance is described in the Maintenance-Spark Arresting Muffler Section of the manual.

Note: When using a pole pruner for logging purposes, refer to Code of Federal Regulations, Parts 1910 and 1928.

WARNING: The ignition system of your unit produces an electromagnetic field of a very low intensity. This field may interfere with some pacemakers. To reduce the risk of serious or fatal injury, persons with pacemaker should consult their physician and the pacemaker manufacturer before operating this tool.

WARNING: Muffler surfaces are very hot during and after operation of the pole pruner, keep all body parts away from the muffler. Serious burns may occur if contact is made with the muffler.

SAFETY

WARNING: Exposure to vibrations through prolonged use of gasoline powered hand tools could cause blood vessel or nerve damage in the fingers, hands, and wrists of people prone to circulation disorders or abnormal swellings. Prolonged use in cold weather has been linked to blood vessel damage in otherwise healthy people. If symptoms occur such as numbness, pain, loss of strength, change in skin color or texture, or loss of feeling in the fingers, hands, or wrists, discontinue the use of this tool and seek medical attention.

WARNING: The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm. Operate your pole pruner outdoors only in a well ventilated area.

50 ft

35 ft

SAFETY RULES

Basic Safety Precautions

• Read this manual carefully until you completely understand and can follow all safety rules, precautions, and operating instructions before attempting to use the unit.

• Restrict the use of your pole pruner to adult users who understand and can follow safety rules, precautions, and operating instructions found in this manual. Minors should never be allowed to use a pole pruner.

• Do not handle or operate a pole pruner when you are fatigued, ill, or upset, or if you have taken alcohol, drugs, or medication. You must be in good physical condition and mentally alert. Pole pruner work is strenuous. If you have any condition that might be aggravated by strenuous work, check with your doctor before operating a pole pruner (Fig. 1). Be more cautious before rest periods and towards the end of your shift.

• Keep children, bystanders, and animals a minimum of 35 feet (10 meters) away from the work area. Do not allow other people or animals to be near the pole pruner when starting or operating the pole pruner (Fig. 2).

• Major cases of pole pruner accidents happen when the chain hits the operator. While working with the pole pruner, always use safety protective approved clothing. The use of protective clothing does not eliminate injury risks, but reduces the injury effects in case of accident. Consult your trusted supplier to choose equipment in compliance with legislation. The clothing must be proper and not an obstacle. Wear adherent anti-cut clothing. Anti-cut jackets (Fig.3), dungarees (Fig.3) and leggings are ideal. Do not wear clothes, scarves, ties or bracelets that may get stuck in wood or twigs. Tie up and protect long hair (example with foulards, cap, helmets, etc.).

Safety shoes or boots having skid-proof sole and anti-piercing insert (Fig.4). Wear protective helmet (Fig.5) in places where there can be falling objects. Wear protective goggles or face screens! Use protections against noises: for example noise reduction ear guards (Fig.5) or earplugs.

The use of protections for the ear requests much more attention and caution, because the perception of danger audio signals (screaming, alarms, etc.) is limited. Wear anti-cut

gloves (Fig.6, page 8).

• Only loan your pole pruner to expert users who are completely familiar with pole pruner operation and correct use. Give other users the manual with operating instructions, which they have to read before using the pole pruner.

• Check the pole pruner each day to ensure that each device, whether for safety or otherwise, is functional.

• Never use a damaged, modified, or improperly repaired or assembled pole pruner. Do not remove, damage or deactivate any of the safety devices. Only use bars of the length indicated by the manufacturer. Always replace bar, chain, immediately if it becomes damaged, broken or is otherwise removed.

• Carefully plan your pole pruning operation in advance. Do not start cutting until you have a clear work area, secure footing, and planned retreat path.

• All pole pruner service, other than the operations shown in the present manual, have to be performed by competent personnel.

• The pole pruner must only be used for cutting wood. It is unadvisable to cut other types of material.

• It is unadvisable to hitch tools or applications to the P.t.o. that are not specified by the manufacturer.

SAFETY RULES

Fuel Handling

WARNING: Gasoline is an extremely flammable fuel. Use extreme caution when handling gasoline or fuel mix. Do not smoke or bring any fire or flame near the fuel or the pole pruner (Fig. 7).

• To reduce the risk of fire and burn injury, handle fuel with

care. It is highly flammable.

• Mix and store fuel in a container approved for gasoline (Fig. 8).

• Mix fuel outdoors where there are no sparks or flames.

• Select bare ground, stop engine, and allow to cool before

refueling.

• Loosen fuel cap slowly to release pressure and to keep fuel from escaping around the cap.

• Tighten fuel cap securely after refueling. Unit vibration can cause an improperly tightened fuel cap to loosen or come off and spill quantities of fuel.

• Wipe spilled fuel from the unit. Move 10 feet (3 m) away from refueling site before starting engine (Fig. 9).

• Never attempt to burn off spilled fuel under any circumstances.

• Do not smoke while handling fuel or while operating the pole pruner.

• Store fuel in a cool, dry, well ventilated place.

• Never place the pole pruner in a combustible area such as dry leaves, straw, paper, etc.

• Store the unit and fuel in an area where fuel vapors cannot reach sparks or open flames from water heaters, electric motors or switches, furnaces, etc.

• Never take the cap off the tank when the engine is running.

• Never use fuel for cleaning operations.

• Take care not to get fuel on your clothing.

10 ft

Operation and Safety

WARNING: Always hold the pole pruner with both hands when the engine is running. Use a firm grip with thumbs and fingers encircling the pole pruner handles (Fig. 10).

• Keep all parts of your body away from the pole pruner chain when the engine is running.

• Always carry the pole pruner with the engine stopped the guide bar and pole pruner chain to the rear, and the muffler away from your body. When transporting your pole pruner, use the appropriate guide bar scabbard (Fig. 11). When transporting in a vehicle, keep chain and bar covered with the chain guard. Properly secure your pole pruner to prevent turnover, fuel

spillage and damage to the pole pruner.

• Do not operate a pole pruner with one hand! Serious injury to the operator, helpers, bystanders, or any combination of these persons may result from one-handed operation. A pole

pruner is intended for two-handed use.

• Before you start the engine, make sure the pole pruner chain is not contacting any object. Never try to start the pole pruner when the guide bar is in a cut.

• Shut off the engine before setting down the pole pruner. Do not leave the engine running unattended.

SAFETY RULES

• Only use the pole pruner in well-ventilated places, do not operate the pole pruner in explosive or flammable atmospheres or in closed environments (Fig. 12). Beware of carbon monoxide poisoning.

• Do not operate pole pruner from a ladder or in a tree. Always cut from a firm-footed and safe position.

• Do not put pressure on the pole pruner at the end of the cut. Applying pressure can cause you to lose control when the cut is completed.

• Do not cut near electric cables (Fig. 13).

• Keep the handles dry, clean, and free of oil or fuel mixture.

• When the pole pruner is running, grip the front handle firmly with your left hand and the back handle with your right hand (Fig. 10).

• When cutting a limb that is under tension, be alert for springback so you will not be struck when the tension in the wood fibre is released.

• Take great care when cutting small branches or shrubs which can block the chain, be thrown back towards you or cause you to lose your balance.

• Never start up the pole pruner without the chain cover fitted.

• Do not use the pole pruner as a lever for lifting, moving or splitting objects. Do not lock it over fixed stands..

• Always begin cutting with the engine at full speed .

50 ft

35 ft

Maintain Control (Fig. 14-15)

• Keep a good, firm grip on the pole pruner with both hands when the engine is running and don’t let go. A firm grip will help you reduce kickback and maintain control of the pole pruner. Keep your right hand completely around the rear handle whether you are right handed or left handed. Keep your left arm straight with the elbow locked.

• Position your left hand on the front handlebar so it is in a straight line with your right hand on the rear handle when making bucking cuts. Never reverse right and left hand positions for any type of cutting.

• Stand with your weight evenly balanced on both feet.

• Stand slightly to the left side of the pole pruner to keep your body from being in a direct line with the cutting chain.

• Do not overreach. You could be drawn or thrown off balance and lose control of the pole pruner.

SAFETY RULES

Precautions to Reduce Vibration Risk

• The pole pruner is provided with anti-vibration (AV) system; never alter or modify it.

• Wear gloves and keep your hands warm.

• Keep the pole pruner chain sharp and the pole pruner, including the AV system, well maintained. A dull chain will increase cutting time, and pressing a dull chain through wood will increase the vibrations transmitted to your hands.

• Maintain a firm grip at all times, but do not squeeze the handles with constant, excessive pressures, take frequent breaks. All the above mentioned precautions do not guarantee that you will not sustain whitefinger disease or carpal tunnel syndrome. Therefore, continual and regular users should monitor closely the condition of their hands and fingers. If any of the above symptoms appear, seek medical advice immediately.

Maintenance Precaution

WARNING: Never operate a pole pruner that is damaged, improperly adjusted, or is not completely and securely assembled.

• Be sure that the pole pruner chain stops moving when the throttle control trigger is released. If the pole pruner chain moves at idle speed, the carburetor may need adjusting, see Operation-Carburetor Adjusting Section.

If the pole pruner chain still moves at idle speed after adjustment has been made, contact a Servicing

Dealer for adjustment and discontinue use until the repair is made.

WARNING: All pole pruner service, other than items in the Operator's Manual maintenance instructions, have to be performed by competent pole pruner service personnel. (If improper tools are used to remove the flywheel or clutch, or if an improper tool is used to hold the flywheel in order to remove the clutch, structural damage to the flywheel could occur which could subsequently cause the flywheel to burst and serious injury could result.)

• Never modify your pole pruner in any way.

• Keep the handles dry, clean, and free of oil or fuel mixture.

WARNING: Use only accessories and replacement parts recommended.

• Never touch the chain or attempt to service the pole pruner while the engine is running.

• Never use fuel for cleaning operations.

• Keep the pole pruner in a dry place, off the ground with the chain guard on and the tanks empty.

• If your pole pruner is no longer usable, dispose of it properly without damaging the environment by handing it in to your local Dealer who will arrange for its correct disposal.

• Replace immediately any safety device when damaged or broken.

WARNING: The muffler and other parts of the engine (e.g. fins of the cylinder, spark plug) become hot during operation and remain hot for a while after stopping the engine. To reduce risk of burns do not touch the muffler and other parts while they are hot.

ASSEMBLY

Cutting implement assemblage

Put the shaft arm (A, Fig.16) in the cutting implement (B), till the centering hole on the shaft matches that of the implement. Fix the centering screw (C, Fig.16) first and then the two screws (D, Fig. 17).

Shaft adjustment (PTX 2700)

Unloose locking ring nut (A, Fig.18) clockwise. Adjust shaft to desired height. Tighten locking ring nut (A, Fig.19)

anticlockwise.

WARNING! – For all operations before the use of cutting implement, consult EP120 EF accessory instruction manual.

WARNING – Shaft adjustment operations must be carried out while engine is switched off and chain cover ﬁ tted.

Cutting tool angular adjustment (EP120 EF)

WARNING – The cutting tool angular adjustment must be carried out while engine is switched off and chain cover ﬁ tted.

Cutting tool’s angulations can be modified from 0° to 90° unscrewing screw (B, Fig.20). There are three intermediate positions between 0° and 90° (22° - 45° - 67°) which block the cutting tool. After selecting the angle tighten the screw (B).

WARNING – Be aware to block the cutting device in one of the ﬁ fth positions; don’t let it in an intermediate position.

OPERATION

Preparing to work

HARNESS

Correct adjustment of the harness permits the pole pruner to be properly balanced and at an appropriate height from the ground (Fig. 21).

- Put on the single harness (Fig. 22).

- Hook the pole pruner to the harness using the hook

(A, Fig. 23).

- Position the buckle (C, Fig. 24) to obtain the correct pole

pruner height.

OPERATION

- Put on the harness and always keep both hands on the handle

while operating the pole pruner (Fig. 25A).

- Use the pole pruner as illustrated in Fig. 25B.

WARNING: Carefully read the safety precautions before using the pole pruner.

OPERATING INSTRUCTIONS

WARNING - The pole pruner must only be used for cutting branch. It is forbidden to cut other types of material. Vibrations and kickback vary with different materials and the requirements of the safety regulations would not be respected. Do not use the pole pruner as a lever for lifting, moving or splitting objects. Do not lock it over fixed stands. It is forbidden to hitch tools or applications to the P.t.o. that are not specified by the manufacturer.

25A 25B

OPERATION

Operating techniques

Hold control grip with right hand and shaft (Fig.25A) with left hand. On PT 2700 Models left hand should hold sheath (C,Fig.26) area.

Optimum balance could be obtained with machine close the body. Standing 60° with the ground (Fig.25B) makes work less fatiguing. To ease branch falling, cut lower branches ﬁ rst. To cut larger branches (with diameter larger than 10 cm), cut it

into more parts (max length 20 cm), never cut the whole branch (Fig.27). Always cut at full throttle.

WARNING – Never work under the branch you are cutting; beware of available space and falling pieces that bounce anomalously on the ground (Fig.28A).

WARNING – Pay attention when working near electric lines. Falling branches could cause short circuit. Never approach the tool at less than 10 metres from electric lines (Fig.28B).

28A 28B

29A 29B

Flush-cutting (Fig.29A) - To avoid tearing the bark, kickbacks or bar pinching, always start by performing a relieving cut (1) on the underside of the branch. Perform the cross-cut (2).

Particular cuts (PTX 2700) The pole pruner permits:

- pruning of branches that are overhanging obstacles (Fig.29B)

such as rivers, lakes etc.

- pruning of branches from high rise buckets (Fig.30).

.050" (1.25 mm)

OPERATION

Chain Tension

1. Stop the engine before setting the chain tension. Loosen

For warm chain, see Item 3.

2. Chain must be retensioned whenever the flats (A) on the drive

3. During normal pole pruner operation, the temperature of the

WARNING: Never touch or adjust the chain while the motor is running. The pole pruner chain is very sharp, always wear protective gloves when performing maintenance to the chain.

the guide bar nuts slightly, turn the chain tensioning screw clockwise to tension the chain. Refer to Assembly-Assembling the Bar and Chain Section. Retighten guide bar nuts. A cold chain is correctly tensioned when there is no slack on the underside of the guide bar, the chain is snug, but it can be turned by hand without binding.

link tangs hang out of the bar groove. See Fig. 31.

chain will increase. The drive link tangs of a correctly tensioned warm chain will hang approximately .050” (1.25 mm) out of the bar groove. See Fig. 32. To help determine the correct warm chain tension, the tip of the combination wrench (Fig. 33) can be used as a guide.

CAUTION: Chain tensioned while warm, may be too tight upon cooling. Check the "cold tension" before next use.

CAUTION: A new chain has to be retensioned more often than one that has been in use for some time.

Breaking-in the Chain

New chains will stretch and must be tightened frequently.

Lift the chain out of the bar groove and lubricate the bar groove with additional oil, see Fig. 34. Place the pole pruner on a piece of cardboard or scrap plywood. Start the pole pruner (refer to the Operation-Starting Engine Section) and allow it to run at moderate speed for approximately one (1) minute. Stop the engine. Check that the oil pump is working properly. The cardboard should have excess oil from the chain rotation if the oil pump is working properly, see Fig. 35. Adjust the chain tension (refer to Operation-Chain Tension Section). Start the pole pruner again and make a few cuts in a log to heat up the chain. Stop the engine and re-adjust chain again. Repeat this process until the chain retains proper warm tension adjustment as shown in Fig.

32 in Operation-Chain Tensioning Section. Never touch the ground with the chain.

OPERATION

Fueling (Do Not Smoke!) (Fig. 38)

This product is powered by a 2-cycle engine and requires pre-mixing gasoline and 2-cycle oil. Pre-mix unleaded gasoline and 2-cycle engine oil in a clean container approved for gasoline

(Fig. 36). RECOMMENDED FUEL: THIS ENGINE IS CERTIFIED TO

OPERATE ON UNLEADED GASOLINE INTENDED FOR AUTOMOTIVE USE WITH AN OCTANE RATING OF 89 ([R + M] /

2) OR HIGHER (Fig. 37). Mix 2-Cycle Engine Oil with gasoline according to the instructions on the package. We strongly recommend the use of 2% (1:50) Efco Two Cycle Engine Oil, which is specifically formulated for all Efco air-cooled two-stroke engines. The correct oil / fuel proportions shown in the table below are suitable when using the Efco Two Cycle Engine Oil or an equivalent high-quality engine oil (JASO specification FD or ISO specification L-EGD). When oil specifications are NOT equivalent or unknown use 4% (1:25) oil / fuel mixing ratio.

CAUTION: DO NOT USE AUTOMOTIVE OIL OR 2-CYCLE OUTBOARD OIL.

CAUTION: Never use a fuel with an alcohol percentage higher than 10%; gasohol up to 10% alcohol or E10 fuel are acceptable.

When using an Oxygenated Gasoline a good practice of Fuel Management is necessary. Gasoline Oxygenated with alcohol readily takes/up water when it is present; the water may be condensed out of humid air or be a contaminant in the fuel system, including tank.

CAUTION:

- Match your fuel purchases to your consumption; don’t buy more than you will use in one or two months;

- Store gasoline in a tightly-closed container in a cool, dry place.

The use of Oxygenated Gasoline may cause the occurrence of vapor-lock easier.

OPERATION

10 ft

NOTE: 2-Cycle Engine Oil contains a fuel stabilizer and will stay fresh up to 30 days. DO NOT mix quantities larger than usable in a 30 day period. A 2-cycle oil containing a fuel stabilizer is recommended.

Fuel Mixture

2-Cycle Engine Oil (25:1) 4%

Gasoline Oil

1 Gallon (US) . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.2 oz.

1 Liter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 cc (40 ml)

High Quality 2-Cycle Engine Oil (50:1) 2%

Gasoline Oil

1 Gallon (US) . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.6 oz.

1 Liter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 cc (40 ml)

Filling the Tank (Fig. 40)

WARNING: Follow safety instruction for fuel handling. Always shut off engine before fueling. Never add fuel to a machine with a running or hot engine. Move at least 10 feet (3 m) from refueling site before starting engine (Fig. 39). DO NOT SMOKE!

1. Clean surface around fuel cap to prevent contamination.

2. Loosen fuel cap slowly.

3. Carefully pour fuel mixture into the tank. Avoid spillage.

4. Prior to replacing the fuel cap, clean and inspect the gasket.

5. Immediately replace fuel cap and hand tighten. Wipe up any fuel spillage.

NOTE: It is normal for smoke to be emitted from a new engine during and after first use.

WARNING: Check for fuel leaks, if any are found, correct before use. Contact a Servicing Dealer if necessary.

Chain Oil System (Fig. 41)

The bar and chain require continuous lubrication. Lubrication is provided by the automatic oiler system when the oil tank is kept filled. Lack of oil will quickly ruin the bar and chain. Too little oil will cause overheating shown by smoke coming from the chain and/or discoloration of the bar. In freezing weather oil will thicken, making it necessary to thin bar and chain oil with a small amount (5 to 10%) of Diesel Fuel or kerosene. Bar and chain oil must be free flowing for the oil system to pump enough oil for adequate lubrication.

CAUTION: Never use waste oil. Always use biodegradable lubrificant that is specific for bar and chain and that is better for the environment and pole pruner’s parts.

CAUTION: Do not use dirty, used or otherwise contaminated oils. Damage may occur to the oil pump, bar, or chain.

OPERATION

WARNING: Do not use waste oil! Medical studies have shown that renewed contact with waste oil can cause skin cancer.

1. Fill the oil tank every time engine is fueled. Pole pruner should use approximately one tank of oil per tank of fuel.

2. The automatic oil pump is a positive displacement pump

operated through gears driven off the clutch drum assembly. The pump will not oil at idle speed.

Preparation for Cutting

Proper Grip on Handles. Refer to Safety Section for appropriate Safety Equipment.

1. Wear non-slip gloves for maximum grip and protection.

WARNING: Hold the pole pruner firmly with both hands. Always keep your LEFT HAND on the front handle and your RIGHT HAND on the rear (throttle) handle as shown in Fig. 42, so that your body is to the left of the chain line. Never use a cross-handed grip, or any stance which would place your body or arm across the chain line. Left-handers should follow these instructions too.

2. Maintain a proper grip on the pole pruner whenever the engine is running. The fingers should encircle the handle. Any grip in which the thumb and fingers are on the same side of the handle, is dangerous because a slight kick of the pole pruner can cause loss of control.

WARNING: Proper Cutting Stance (Fig. 43)

- Weight should be balanced on both feet - feet on solid ground.

- Your body should always be to the left of the chain line.

Basic Cutting Procedure

Practice cutting a few small logs using the following technique to get the "feel" of using your pole pruner before you begin a major pole pruning operation.

1. Take the proper stance in front of the wood with the pole pruner idling.

2. Accelerate the engine to full throttle just before entering the cut by squeezing the throttle trigger.

3. Keep the engine at full throttle the entire time you are cutting.

4. Allow the chain to cut for you; exert only light downward pressure. If you force the cut, damage to the bar, chain, or engine can result.

5. Release the throttle trigger as soon as the cut is completed, allowing the engine to idle. If you run the pole pruner at full

throttle without a cutting load, unnecessary wear or damage can occur to the chain, bar, and engine.

6. Do not put pressure on the pole pruner at the end of the cut.

50 ft

35 ft

OPERATION

Work Area Precautions

• Never allow children to operate your pole pruner. Only allow others to use this pole pruner who have read this Operator's

Manual or received adequate instructions for the safe and proper use of this pole pruner.

• Keep everyone - helpers, bystanders, children, and animals a safe distance from the cutting area (Fig. 44).

• Always cut with both feet on solid ground to prevent being

pulled off balance.

• Do not cut above chest height, as a pole pruner held higher is difficult to control against kickback forces.

• Do not work near electrical wires or buildings. Leave this operation for professionals.

• Cut only when visibility and light are adequate for you to see clearly.

• Do not cut from a ladder, this is extremely dangerous.

• Stop the pole pruner if the chain strikes a foreign object. Inspect the pole pruner and repair parts as necessary.

• Keep the chain out of dirt and sand. Even a small amount of dirt will quickly dull a chain and increase the possibility of kickback.

• Stop the engine before setting the pole pruner down.

• Be particularly cautious and alert while wearing hearing

protection because such equipment may restrict your ability to

hear sounds indicating danger (calls, signals, warnings, etc).

• Be extremely cautious when working on slopes or uneven ground.

WARNING: Cut only wood or materials made from wood. Do not cut metal, plastics, masonry, or non-wood building materials.

Starting The Engine

WARNING: Keep body to the left of the chain line. Never straddle the pole pruner or chain, or lean over past the chain line.

• Do not start the engine with the arm not mounted.

• Place the pole pruner on level ground and ensure that no objects or obstructions are in immediate vicinity which could come in contact with the bar and chain.

Hold the body of the machine on the ground using your left

hand (CAUTION! Not with your foot!), see Fig. 45.

• Fill the carburetor by pushing primer bulb (A, Fig. 46).

• Pull the throttle lever (B) and stop it at half-throttle put the ON/OFF switch (A, Fig.47) in the ( the lever (B).

• Put the choke lever (D, Fig.49) in the CLOSE position.

• Holding the pole pruner down, pull the starting rope slowly until you meet resistance (Fig.45). Then pull it hard several times, and when the engine starts put the choke lever (D, Fig.48) back into its original position OPEN. Repeat until the engine starts.

• Once the engine has started, press throttle trigger (B, Fig.47) to release it from the half-throttle position and let the engine idle.

) position then release

OPERATION

• To start the engine when warm, switch (F) must be positioned

as shown in Fig.49.

WARNING: Once the engine is warmed up do not use the choke to start up again.

WARNING: Use the semi-acceleration device only in the phase of starting the engine when cold.

WARNING: Do not cut material with the choke/fast idle lever at the FULL CHOKE position. Do not operate your pole pruner with the starting throttle lock engaged. Cutting with the starting throttle lock engaged does not permit the operator proper control of the pole pruner or chain speed.

NOTE - STARTING WARM ENGINE: Follow above starting instructions, but do not use the Full Choke position for start up again. To set fast idle for warm engine starting, pull choke out completely and push back in to the original Run Position.

WARNING: Weather conditions and altitude may affect carburetion. Do not allow bystanders close to the pole pruner while adjusting the carburetor.

WARNING: Never attempt to start the pole pruner when the guide bar is in a cut or kerf.

WARNING: Never start the pole pruner engine without the bar, chain and sprocket cover assembled

- or else the clutch can come loose and cause personal injuries.

OPERATION

Breaking-in the Engine

The engine reaches the maximum power after 5-8 hours of activity. During this period of breaking-in do not make the machine function idly at full throttle, to avoid excessive functioning stress.

CAUTION! – During the braking-in period do not vary the carburetion to obtain a presumed power increment; the engine can be damaged.

Difficult Starting (or starting a flooded engine)

The engine may be flooded with too much fuel if it has not started after 10 pulls. Flooded engines can be cleared of excess fuel by following the warm engine starting procedure listed above. Ensure the ON/STOP switch is in the ON position. Starting could require pulling the starter rope handle many times depending on how badly the unit is flooded. If engine fails to start refer to the TROUBLESHOOTING TABLE (page 30).

Engine is Flooded

If you did not move the choke lever to warm start, quickly enough after the engine began to fire, the combustion chamber is flooded.

• Set the on/off swich to STOP.

• Engage a suitable tool in the spark plug boot (Fig. 51).

• Pry off the spark plug boot.

• Unscrew and dry off the spark plug.

• Open the throttle wide.

• Pull the starter rope several times to clear the combustion chamber.

• Refit the spark plug and connect the spark plug boot, press it down firmly – reassemble the other parts.

• Set the on/off swich to I, the starting position.

• Set the choke lever to warm start – even if engine is cold.

• Now start the engine.

Stopping The Engine

Release the throttle trigger (B, Fig. 52) and let the engine return to idle. To stop the engine, move the on/off switch (A) to the “STOP” position. Do not put the pole pruner on the ground when the saw chain is still moving. In the event that the “STOP” position of the switch will not function, pull the choke lever in the CLOSE position (Fig.48, page 19) to stop the engine.

CAUTION: The chain contracts as it cools down. If it is not slackened, it could damage the sprocket shaft and bearings.

Pre-operation checking

WARNING: THE SAW CHAIN SHOULD NEVER TURN AT IDLE. Turn the idle speed screw “T” counterclockwise to reduce the idle RPM and stop the chain, or contact a Servicing Dealer for adjustment and discontinue use until the repair is made. Serious personal injury may result from the pole pruner chain turning at idle.

OPERATION

Working Techniques

Unusual Hazardous Working Techniques Conditions

WARNING: Do not work during periods of high wind or heavy precipitation.

WARNING: Never cut, when visibility is poor or in very high or low temperatures or in freezing weather.

WARNING: Do not cut near electrical wires or buildings. If the tree makes contact with any utility line, the utility company should be notified immediately.

WARNING: Check the tree for damaged or dead branches that could fall and hit you during working.

• Carefully plan your pole pruning operation in advance.

• Clear the work area. You need a clear area all around the tree so you can have secure footing. Look for decay and rot. If the branch is rotted, it can snap and fall toward the operator. Make sure there is enough room for the branch to fall. Maintain a distance of 2-1/2 tree lengths from the nearest person or other objects. Engine noise can drown out a warning call. Remove dirt, stones, loose bark, nails, staples, and wire from the tree where cuts are to be made. Pick your escape route (or routes in case the intended route is blocked). Clear the immediate area around the tree, and make sure there are no obstructions in your planned path of retreat.

WARNING: Never turn pole pruner upside down to undercut. The pole pruner cannot be controlled in this position. Always make your first cut on the compression side of the branch. The compression side of the branch is where the pressure of the branch’s weight is concentrated.

Pruning

• Be alert for springback. Watch out for branches that are bent or under pressure. Avoid being struck by the branch or the pole pruner when the tension in the wood fibers is released.

• Keep a clear work area. Frequently clear branches out of the way to avoid tripping over them.

WARNING: Never climb into a tree to limb or prune. Do not stand on ladders, a log or in any position which can cause you to lose your balance or control of the pole pruner.

Pruning Operation (Fig. 53)

• When pruning trees it is important not to make the flush cut next to the main limb or trunk until you have cut off the limb further out to reduce the weight. This prevents stripping the bark from the main member.

• Underbuck the branch 1/3 through for your first cut, your second cut should overbuck to drop the branch off.

• Now make your finishing cut smoothly and neatly against the main member so the bark will grow back to seal the wound.

MAINTENANCE

Maintenance Chart

Please note that the following maintanance intervals apply for normal operating conditions only. If your daily work requires longer than normal or harsh cutting conditions are present the suggested intervals should be shortened accordingly.

Complete Machine Inspect (Leaks, Cracks, and Wear)

Clean

Controls (Ignition Switch, Choke Lever, Throttle Trigger, Trigger Interlock)

Fuel Tank Inspect (Leaks, Cracks, and Wear)

Oil Tank Inspect (Leaks, Cracks, and Wear)

Fuel Filter Inspect

Chain Lubrication Check Output

Saw Chain Inspect (Damage, Sharpness, and Wear)

Guide Bar Inspect (Damage and Wear)

Rim Sprocket Inspect (Damage and Wear)

Clutch Drum Inspect (Damage and Wear)

Chain Catcher Inspect (Damage and Wear)

All Accessible Screws and Nuts (Not Adjusting Screws) Inspect

Air Filter Clean

Cylinder Fins Clean

Starter System Vents Clean

Starter Rope Inspect (Damage and Wear)

Carburetor Check Idle (Chain must not rotate at idle)

Spark Plug Check Electrode Gap

Check Operation

Clean

Clean, Replace Filter Element

Check Tension

Sharpen (Check Gauge Depth)

Clean Bar groove and Oil Passages

Rotate

Lubricate Sprocket Nose

Deburr

Replace

Retighten

Replace

After Each

Refueling Stop

Before Each Use

Weekly

Daily Work

After Finishing

Faulty

Monthly

If Damaged or

As Required

Every 6 Months

Replace with

every new chain

Every 6 Months

MAINTENANCE

Assembling the Bar and Chain

1. Remove the two (2) bar nuts (A, Fig. 55) and the cover (B).

2. Adjust the chain tensioning pin (C) fully towards the cover band by turning the chain tensioning screw (D) counterclockwise as shown in inset (Fig. 56).

3. The guide bar (E, fig. 57) contains a bar stud slot that fits over the bar studs (F). The guide bar also contains two chain tensioning pin holes (G) and two lubrication holes, one per side. The bar is reversible and either tensioning pin hole may be utilized with the chain tensioning pin.

4. Place the guide bar (E) onto the bar studs (F) as shown in Fig. 57.

5. Position the guide bar (E) tip through the chain (H) loop as shown in Fig. 58. The cutters on the top of the guide bar should face toward the bar nose, in the direction of the chain rotation. See inset (L) of Fig. 59.

6. Fit the chain (H, fig. 58) over the rim sprocket (M) and into bar groove.

WARNING: Check the chain tension frequently when operating the pole pruner. Never touch or adjust the chain while the engine is running. The pole pruner chain is very sharp, always wear protective gloves when performing maintenance to the chain.

CAUTION: Severe damage can occur to the rim sprocket, clutch drum, guide bar and chain, if the chain is not correctly seated into the rim sprocket.

7. Replace the cover (B). Turn the chain tensioning screw (D) clockwise until the chain tensioning pin (C) fits into the chain tensioning pin hole (G). Install the two bar nuts (A). Tighten the bar nuts finger tight only. The bar must be free to move for tension adjustment.

CAUTION: Failure to ensure that the chain tensioning pin is in the chain tensioning pin hole will result in severe damage to the pole pruner during reassembly of the sprocket cover.

8. Remove all slack from chain by turning the chain tensioning

screw (D) clockwise, assuring that the chain seats into the bar groove during tensioning.

9. Lift the tip of the guide bar up to check for sag, see Fig. 60,

pag. 24. Release the tip of the guide bar, and turn the chain tensioning screw (D) 1/2 turn clockwise. Repeat this process until sag does not exist.

10. Hold the tip of the guide bar up and tighten the bar nuts (A)

securely as shown in Fig. 55.

11. Chain is correctly tensioned when there is no slack on the

underside of the guide bar, the chain is snug, but it can be turned by hand without binding, see Fig. 61.

NOTE: If chain is too tight, it will not rotate. Loosen bar nuts slightly and turn adjusting screw 1/4 turn counterclockwise. Lift the tip of the guide bar up and retighten bar nuts.

MAINTENANCE

WARNING: If the pole pruner is operated with a loose chain, the chain could jump off the guide bar and result in serious injury.

WARNING: Never start the pole pruner with the sprocket cover loose.

MAINTENANCE

Chain Maintenance

For smooth and fast cutting, raker chain needs to be maintained properly. The chain requires sharpening when the wood chips are small and powdery, the chain must be forced through the wood during cutting, or the chain cuts to one side. During maintenance of your chain, consider the following:

1. Improper filing angle of the side plate can increase the risk of

a severe kickback.

2. Raker (depth gauge) clearance (A, Fig. 62): Too much increases

the potential for kickback; not enough decreases cutting ability.

3. If cutter teeth have hit hard objects such as nails and stones, or have been abraded by mud or sand on the wood, have Servicing Dealer sharpen chain.

4. In rare instances drive tangs could flare resulting in chain not rotating freely. Replace chain if necessary.

NOTE: Inspect the rim sprocket for wear or damage when replacing the chain. If signs of wear or damage are present in the areas indicated in Fig. 63, have the rim sprocket replaced by a Servicing Dealer.

How to Sharpen the Cutters (Fig. 64)

Be careful to file all cutters to the specified angles and to the same length, as fast cutting can be obtained only when all cutters are uniform.

1. Wear gloves for protection. Tighten the chain tension enough that the chain does not wobble. Do all of your filing at the mid-point of the bar. See Operation-Chain Tension.

2. Use a 5/32" (4 mm) diameter round file and holder.

3. Keep the file level with the top plate of the tooth as shown in Fig. 65. Do not let the file dip or rock.

4. Using light but firm pressure, stroke towards the front corner of the tooth as shown in Fig. 66. Lift file away from the steel on each return stroke.

5 Put a few firm strokes on every tooth. File all left hand cutters

(E, Fig. 67) in one direction. Then move to the other side and file the right hand cutters (F) in the opposite direction. Occasionally remove filings from the file with a wire brush.

CAUTION: Dull or improperly sharpened chain can cause excessive engine speed during cutting which may result in severe engine damage.

WARNING: It is absolutely essential to comply with the angles and dimensions specified below. If the pole pruner chain is incorrectly sharpened – and in particular if the depth gauge is set too low – there is a risk of increased kickback of the pole pruner, with resulting risk of injury. Failure to replace or repair damaged chain can cause serious injury. The pole pruner chain is very sharp, always wear protective gloves when performing maintenance to the chain.

MAINTENANCE

Top Plate Angle

File holders are marked with guide marks to align file properly to produce correct TOP PLATE ANGLE (Fig. 68).

G) CORRECT- 30° H) LESS THAN 30° - For Cross Cutting. I) MORE THAN 30°- Feathered Edge Dulls Quickly.

Side Plate Angle (Fig. 69)

J) CORRECT- 85° - 90° Produced automatically if correct diameter file is used in file

holder.

K) “HOOK”- “Grabs” and dulls quickly. Increases potential of

KICKBACK.

Results from using a file with diameter too small, or file held

too low.

L) BACKWARD SLOPE- Needs too much feed pressure, causes

excessive wear to bar and chain.

Results from using a file with diameter too large, or file held

too high.

Depth Gauge Clearance

1. The depth gauge (M, Fig. 70) should be maintained at a clearance (N) between .020 (0.5 mm) and .024" (0.6 mm). Use a depth gauge tool for checking the depth gauge clearances.

2. Every time the chain is filed, check the depth gauge clearance.

Use a Flat File and a Depth Gauge Jointer to lower all gauges uniformly (Fig. 71). P) FLAT FILE Q) DEPTH GAUGE JOINTER

Depth gauge jointers available in .020" to .035" (0.5mm to

0.9mm). After lowering each depth gauge, restore original shape by rounding the front (R). Be careful not to damage adjoining drive links with the edge of the file.

CAUTION: After sharpening, clean the chain thoroughly, remove filings or grinding dust – lubricate the chain thoroughly.

Guide Bar Maintenance

Every day of use, reverse the guide bar on the pole pruner to distribute the wear for maximum bar life (see Fig. 72). The bar should be cleaned every day of use and checked for wear and damage. Feathering or burring of the bar rails is a normal process of bar wear. Such faults should be smoothed with a file or stone as soon as they occur.

A bar with any of the following faults should be replaced:

• Wear inside the bar rails which permits the chain to lay over sideways.

• Bent guide bar.

• Cracked or broken rails.

• Spread rails.

In addition, guide bars with a sprocket at their tip must be lubricated periodically with a grease syringe to extend the guide bar life. Turn the guide bar and check that the lubrication holes (T) and chain groove (S) are free from impurities.

MAINTENANCE

Carburetor Adjustment

Before adjusting the carburetor, clean the starter cover vents as shown in Illustration Fig. 73, and air filter as shown in Illustration Fig. 74 (B), refer to Operation-Starting Unit and Maintenance-Air Filter Sections for details. Allow the engine to warm up prior to carburetor adjustment. This engine is designed and manufactured in order to comply with EPA (Environmental Protection Agency) Phase 2 regulations. The carburetor is factory set and should not require adjusting.

The carburetor will permit only limited adjustment of the “L” (Low Jet) and “H” (High Jet) needles (Fig. 75). Any adjustment should be done by a Servicing Dealer. Under no circumstances should the “L” (Low Jet) and “H” (High Jet) needles be forced outside the range of adjustment.

WARNING: Serious damage can occur to the engine if improper adjustments are made to the “L” and “H” needles. Do not force the “L” and “H” needles outside the adjustment range in such case the engine will not run in compliance with emissions regulations.

Idle Speed Adjustment

• If the engine starts, runs, and accelerates but will not idle; turn the idle speed screw “T” clockwise to increase idle speed (Fig. 75).

• If the chain turns at idle, turn the idle speed screw “T”

counterclockwise to reduce the idle RPM and stop the chain

movement. If the pole pruner chain still moves at idle speed, contact a Servicing Dealer for adjustment and discontinue use until the repair is made.

Fuel Filter

Check the fuel filter (Fig. 76) periodically. Replace it if contaminated or damaged.

Air Filter

WARNING: Do not clean filter in gasoline or other flammable solvent to avoid creating a fire hazard or producing harmful evaporative emissions.

Remove air filter cover (A, Fig. 74) and check the air filter (B) each day. Blow with compressed air, at a distance (Fig. 77). Reinstall the air filter into cover. Place the air filter cover onto the pole pruner. Tighten the air filter cover. A used air filter can never be completely cleaned. It is advisable to replace your air filter with a new one after six month of operation.

CAUTION: Never run the engine without the air filter, serious damage could result. Make sure the air filter is correctly placed in the air filter cover before reassembly. Always replace damaged filters. Do not clean a filter with a brush.

MAINTENANCE

Starter Unit

Engine

Clean the cylinder fins with compressed air or a brush periodically (Fig. 78). Dangerous overheating of engine may occur due to impurities on the cylinder.

WARNING: The coil spring is under tension and could fly apart causing serious injuries. Never try to disassembly or modify it.

WARNING: Never run the pole pruner without all the parts, including the drivecase cover and starting housing, securely in place. Because parts can fracture and pose a danger of thrown objects, leave repairs to the flywheel and clutch to trained Servicing Dealers.

CMR7A

Spark Plug

This engine uses a NGK CMR7A with .02” (0.5 mm) electrode gap (Fig. 79). Use an exact replacement and replace every six months or more frequently, if necessary.

WARNING: Never test the ignition system with ignition wire connector removed from spark plug or with unseated spark plug, since uncontained sparking may cause a fire. A loose connection between spark plug terminal and ignition wire connector in the boot may create arcing that could ignite combustible fumes and cause a fire.

Use only resistor type spark plugs of the approved range. Factors such as:

- too much oil in fuel mix;

- dirty air filter;

- unfavourable running conditions, e.g. operating at part load;

may result in rapid deterioration of the spark plug.

Muffler

WARNING – This muffler incorporates a catalytic

converter, needed in order to ensure the engine complies with current emissions standards. Never attempt to modify or remove the catalytic converter: in doing so, you will be breaking the law.

WARNING – Mufflers with catalytic converters become very hot during operation, and retain heat for a long time after the engine has been stopped. This is the case even with the engine idling. Contact can burn the skin. Always remember the potential fire risk!

CAUTION – If the catalytic converter is damaged, it must be replaced. If the catalytic converter frequently

becomes blocked, this could be an indication that the efficiency of the muffler is limited.

MAINTENANCE

Spark Arresting Muffler

The pole pruner is provided with a Spark Arrester System p.n. 61280087 (Fig. 80) complying with the requirements of SAE J335 standard; you can check the p.n. of the Spark Arrester System on the muffler itself.

WARNING: A faulty or altered spark arrester system screen can create a fire hazard.

Through normal use the screen can become dirty and should be inspected weekly and cleaned as required.

To clean:

• Allow the muffler to cool.

• Remove the stop spring (A, Fig. 81).

• Remove the spark arrester screen (B).

• Clean and inspect the spark arrester screen.

• Reassemble components in reversed order of removal.

The Spark Arrester System needs a periodic and accurate maintenance and cleaning, in particular:

- check periodically the spark arrester screen and substitute it when holes, bends or deformations appear;

- check carefully if dust, debris or organic material is in contact with parts of the Spark Arrester System; check especially the gap between the muffler and the shield; clean it often with tools or shop air.

WARNING: Do not operate your pole pruner if the muffler is damaged, missing or modified. An improperly maintained muffler will increase the risk of fire and hearing loss.

Gear Housing

Every 30 working hours, remove screw (A, Fig. 82) on the gear housing and check the quantity of grease. Use high quality molybdenum bisulfide grease.

+ 67 hidden pages

Efco PT 2700 Operator Manual & Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual