STIHL RMA 370 Owner's Manual

STIHL RMA 370

Warning!

Read and follow all safety precautions in Instruction Manual – improper use can cause serious or fatal injury.

Advertencia!

Lea y siga todas las precauciones de seguridad dadas en el manual de instrucciones – el uso incorrecto puede causar lesiones graves o mortales.

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Instruction Manual Manual de instrucciones

Instruction Manual 1 - 33

Manual de instrucciones 34 - 69

Contents

English

Guide to Using this Manual 2 Important Safety Instructions 2 Safety Precautions and Working

Techniques 3 Description of Operation 11 Using the Unit 11 Mulching 12 Mounting the Handlebar 12

Original Instruction ManualPrinted on chlorine-free paper

Grassbox 13 Adjusting Cutting Height 14 Connecting Charger to Power

Supply 15 Charging the Battery 15 Light Emitting Diodes (LED) on

Battery 16 Light Emitting Diodes (LED) on

Charger 18 Switching On 19 Switching Off 20 Storing the Machine 21 Inspection and Maintenance by

User 22

Printing inks contain vegetable oils, paper can be recycled.

Sharpening Instructions 22 Maintenance and Care 25 Main Parts 26 Specifications 27 Special Accessories 28 Troubleshooting 29 Maintenance and Repairs 31 Battery Recycling 31

Disposal 31 Trademarks 32 Addresses 33

Allow only persons who fully understand this manual to operate your lawn mower.

To receive maximum performance and satisfaction from your STIHL lawn mower, it is important that you read, understand and follow the safety precautions and the operating and maintenance instructions in the chapters "Important Safety Instructions" and "Safety Precautions and Working Techniques" before using your lawn mower. For further information you can go to www.stihlusa.com.

Contact your STIHL dealer or the STIHL distributor for your area if you do not understand any of the instructions in this manual.

WARNING

Because a lawn mower is a high-speed cutting tool and is battery-powered, some special safety precautions must be observed to reduce the risk of personal injury. Careless or improper use may cause serious or even fatal injury, including the amputation of hands and feet.

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RMA 370

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Guide to Using this Manual

Pictograms

The meanings of the pictograms attached to or embossed on the machine are explained in this manual.

Depending on the model concerned, the following pictograms may be on your machine.

Key

Symbols in Text

Many operating and safety instructions are supported by illustrations.

The individual steps or procedures described in the manual may be marked in different ways:

N A bullet marks a step or procedure. A description of a step or procedure that

refers directly to an illustration may contain item numbers that appear in the illustration. Example:

N Loosen the screw (1). N Lever (2) ...

In addition to the operating instructions, this manual may contain paragraphs that require your special attention. Such paragraphs are marked with the symbols and signal words described below:

DANGER

Indicates an imminent risk of severe or fatal injury.

WARNING

Indicates a hazardous situation which, if not avoided, could result in severe or fatal injury.

NOTICE Indicates a risk of property damage,

including damage to the machine or its individual components.

Engineering Improvements

STIHL’s philosophy is to continually improve all of its products. As a result, engineering changes and improvements are made from time to time. Therefore, some changes, modifications and improvements may not be covered in this manual. If the operating characteristics or the appearance of your machine differs from those described in this manual, please contact your STIHL dealer for assistance.

Important Safety Instructions

WARNING

When using electric lawn mowers, basic safety precautions should always be followed to reduce the risk of fire, electric shock and personal injury, including the following:

READ ALL INSTRUCTIONS

1. Avoid Dangerous Environments – Do not use lawn mowers in damp or wet locations.

2. Do Not Use In Rain.

3. Keep Children Away – All visitors should be kept a safe distance from work area.

4. Dress Properly – Do not wear loose clothing or jewelry. They can be caught in moving parts. Use of gloves and footwear is recommended when working outdoors.

5. Use Safety Glasses – Always use face or dust mask if operation is dusty.

6. Use Right Appliance – Do not use lawn mower for any job except that for which it is intended.

7. Do Not Force Lawn Mower – It will do the job better and safer at the rate for which it was designed.

8. Do Not Overreach – Keep proper footing and balance at all times.

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9. Stay Alert – Watch what you are doing. Use common sense. Do not operate lawn mower when you are tired.

10. Disconnect Lawn Mower – Disconnect the lawn mower from the power supply by removing the fuse key and battery when not in use, before servicing, when changing accessories such as blades, and the like.

11. Store Idle Lawn Mower Indoors – When not in use, lawn mower should be stored in an indoor dry and locked place – out of reach of children.

12. Maintain Lawn Mower With Care – Keep cutting edges sharp and clean for best and safest performance. Follow instructions for lubricating and changing accessories.

13. Keep guards in place and in working order.

14. Keep blades sharp.

15. Keep hands and feet away from cutting area.

16. Objects struck by lawn mower blade can cause severe injuries to persons. The lawn should always be carefully examined and cleared of all objects prior to each mowing.

17. If lawn mower strikes a foreign object, follow these steps:

– Stop lawn mower. Release switch

lever.

– Remove fuse key and battery.

– Inspect for damage. – Repair any damage before

restarting and operating the lawn mower.

18. Use identical replacement blades only.

SAVE THESE INSTRUCTIONS

Safety Precautions and Working Techniques

Because this lawn mower is a high-speed, fast-cut ting power tool and is battery-powered, special safety precautions must be observed to reduce the risk of personal injury.

It is important that you read, fully understand and observe the following safety precautions and warnings. Read the instruction manual and the safety precautions periodically. Careless or improper use may cause serious or fatal injury.

Have your STIHL dealer show you how to operate your power tool. Observe all applicable local safety regulations, standards and ordinances.

The use of noise emitting power tools may be restricted to certain times by national or local regulations.

WARNING

Do not lend or rent your lawn mower without the instruction manual. Be sure that anyone using it understands the information contained in this manual.

WARNING

Use your lawn mower only for mowing grass. Do not use it for other purposes, since misuse may result in personal injury or property damage, including damage to the machine.

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WARNING

Minors should never be allowed to use this power tool. Bystanders, especially children, and animals should not be allowed in the area where it is in use. Tragic accidents can occur if the operator is not alert to the presence of children. Children are often attracted to the machine and it mowing activities. Never assume that children will remain where you last saw them. Keep children under the watchful eye of a responsible adult other than the operator. Use extra care when approaching blind corners, shrubs, trees or other objects that may block your view of a child!

WARNING

To reduce the risk of injury to bystanders and damage to property, never let your lawn mower run unattended. When it is not in use (e.g. during a work break), shut it off and make sure that unauthorized persons do not use it. To do this, remove fuse key and battery from the power tool.

Most of these safety precautions and warnings apply to the use of all STIHL lawn mowers. Different models may have different parts and controls. See the appropriate section of your instruction manual for a description of the controls and the function of the parts of your model.

Always remove fuse key and battery before inspecting, cleaning, transporting, storing or carrying out any work on the power tool. This avoids the risk of the motor starting unintentionally.

Use only original STIHL replacement parts, including the cutting blade. They are specifically designed to match your model and meet your performance requirements. Use of non-STIHL parts may cause serious or fatal injury.

Safe use of a lawn mower involves

1. the operator

2. the power tool

3. the use of the power tool.

THE OPERATOR

Physical Condition You must be in good physical condition

and mental health and not under the influence of any substance (drugs, alcohol, etc.) which might impair vision, dexterity or judgment. Do not operate this machine when you are fatigued.

WARNING

Be alert – if you get tired, take a break. Tiredness may result in loss of control. Working with any power tool can be strenuous. If you have any condition that might be aggravated by strenuous work, check with your doctor before operating this machine.

Proper Clothing

WARNING

To reduce the risk of injury, the operator should wear proper protective apparel.

The housing of your lawn mower will not protect the operator from all foreign objects (gravel, glass, wire, etc.) thrown

back by the rotating cutting blade. Thrown objects may also ricochet and strike the operator.

To reduce the risk of injury to your eyes never operate your lawn mower unless wearing goggles or properly fitted protec tive glasses with adequate top and side protection complying with ANSI Z 87.1 (or your applicable national standard.)

Clothing must be sturdy but allow complete free dom of movement. Wear long pants to help pro tect your legs. Do not wear shorts.

Avoid loose-fitting jackets, scarfs, neckties, jewelry, flared or cuffed pants, unconfined long hair or anything that could become caught in scrub or moving parts of the unit. Secure hair so it is above shoulder level.

Good footing is very important. Wear sturdy shoes with nonslip soles. Never wear sandals, flipflops or go barefoot.

Always wear gloves when transporting the machine and carrying out work on the cutting blade.

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THE POWER TOOL

For illustrations and definitions of the power tool parts see the chapter on "Main Parts."

WARNING

Never modify your lawn mower in any way. Only attachments supplied by STIHL and expressly approved by STIHL for use with the specific STIHL model are authorized. Although certain unauthorized attachments are useable with STIHL power tools, their use may, in fact, be extremely dangerous.

If your lawn mower is subjected to unusually high loads for which it was not designed (e.g. heavy impact or a fall), always check that it is in good condition before continuing work – see also "Before Starting Work." Make sure the safety devices are working properly. Do not continue operating your lawn mower if it is damaged. In case of doubt, have it checked by your STIHL servicing dealer.

Battery

WARNING

Risk of fire, explosion and/or burns, including chemical burns. Do not disassemble, crush, heat above 212 °F (100 °C), expose to fire or inciner ate. Never expose the battery to microwaves or high pressures.

Do not place the battery on or near fires, stoves or in other high-temperature locations. Do not place the battery in direct sunlight or store it inside a vehicle

in hot weather. Doing so may cause the battery to generate heat, rupture or ignite. Using the batteries in this manner may also result in a loss of performance and a shortened life expectancy.

In case of fire: Stay clear of any vapors or gases generated, taking wind direction into account. If possible without danger, remove battery from the vicinity of the fire. In principle, cooling the battery or extinguishing the fire with water is possible. It is preferable to extinguish the fire with a multipurpose dry chemical fire extinguisher. As for any fire, evacuate the area and fight the fire from a safe distance. Once the fire has been extinguished, the area should be monitored (fire watch) in case of a flareup, until the battery has cooled sufficiently. Restrict access to the area until completion of clean-up. Do not touch the burnt battery or any spilled liquids. Use inert absorbent to absorb spilled liquids.

Use and store the bat tery only within a temperature range from 14 °F (-10 °C) and no more than 122 °F (+ 50 °C). Protect the bat tery from direct sunlight.

WARNING

Use STIHL batteries only with STIHL power tools and charge them only with STIHL chargers. Replace battery with STIHL AP battery only. Use only original STIHL rechargeable batteries.

Charge the battery before use.

Protect from rain – do not immerse in fluids.

WARNING

Do not open, drop, hit or damage battery. Never insert objects into the battery's cooling slots, since they may damage the battery. The battery contains safety features and devices which, if damaged, may cause the battery to generate heat, rupture or ignite. Never use or charge a defective, damaged, cracked or deformed battery.

Immediately discontinue use of the battery if, while using, charging or storing, it emits an unusual smell, feels hot or appears abnormal in any other way.

WARNING

Fluid may leak from the battery if it is damaged or is not used properly – avoid contact with the skin! Leaking battery fluid can cause skin irritation and chemical burns. In the event of accidental contact, immediately rinse

thoroughly with mild soap and water. If fluid gets into your eye(s), do not rub your eye(s) but rinse water over the open eye(s) for 15 minutes at least. Also seek medical attention immediately.

WARNING

Never bridge (short circuit) the battery terminals with metallic objects, since this may damage the battery and possibly cause a fire. Keep a battery that is not in

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use away from metal objects (e.g. nails, coins, jewelry). Do not use metal containers for transporting batteries.

Store the battery out of reach of children in a cool and dry area away from direct sunlight and excess heat or cold (14 °F – 122 °F (-10 °C – +50 °C)).

Charger Use only original STIHL chargers. Use only for charging geometrically

matching STIHL type AP batteries with a maximum capacity of 10 Ah and a maximum voltage of 42 V.

Never charge defective, leaking or deformed batteries.

Connect the charger only to a power supply with the voltage and frequency specified on the rating plate. Always connect the charger to a properly installed wall outlet.

Never use a charger with damaged housing, damaged power supply cord or damaged plug. Do not operate the charger if it has received a sharp blow, been dropped or otherwise damaged in any way.

Do not open or dissassemble charger – there are no user serviceable parts inside.

Store charger out of the reach of children.

Protect the charger from rain and dampness. Keep charger dry.

Use and store charger only indoors in dry rooms.

Operate charger at temperatures between 41 °F (5 °C) and 104 °F (40 °C).

Allow the charger to cool down normally – do not cover it.

Never bridge the contacts of the charger with metallic objects (e.g. nails, coins, jewelry) – short circuit. The charger may be damaged by a short circuit.

In the event of smoke or fire in the charger, disconnect it from outlet immediately.

WARNING

To reduce the risk of electric shock or short circuit, do not insert any objects into the charger's cooling slots.

WARNING

The charger heats up during the charging process. Do not operate on an easily combustible surface (e.g. paper, texiles) or in an easily combustible environment – risk of fire.

WARNING

Do not operate in a hazardous location, i.e. in a location where there are combustible liquids (fumes), vapors or dusts. Chargers can produce sparks, which may ignite the dust or vapors – risk of explosion.

Check the charger's power supply cord and plug regularly for dam age. If the power supply cord or plug is damaged, immediately disconnect the plug from the wall outlet to avoid the risk of electric shock.

Never jerk the power supply cord to disconnect it from the wall outlet. To unplug, grasp the plug, not the cord. Have a damaged power supply cord repaired by an experienced electrician.

Do not use the power supply cord for any other purpose, e.g. for carrying or hanging up the charger.

Never use power supply cords that do not comply with regulations.

Make sure the power supply cord is located and/or marked so that it will not be stepped on, tripped over, come in contact with sharp edges or moving parts or otherwise be subjected to damage or stress.

An extension cord should not be used unless absolutely necessary. If an extension cord must be used, plug the charger into a properly wired 16 gauge (AWG 16) or heavier gauge extension cord with blades that are the same number, size and shapes as the blades on the charger.

To reduce the risk of electric shock: – Always connect the charger to a

properly installed wall outlet.

– Make sure the insulation of the

power supply cord and plug is in good condition.

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9929BA031 KN

Unplug the power supply cord from the outlet when charger is not in use.

Never store the battery in the charger.

THE USE OF THE POWER TOOL

Transporting the Unit

WARNING

To reduce the risk of injury from blade contact, never carry or transport your power tool with the cutting blade moving.

WARNING

Always switch off the power tool by releasing the switch lever, remove the fuse key and battery – even when you carry the unit for short distances. When transporting it in a vehicle, properly secure the lawn mower and its parts (e.g. grass box) to prevent turnover and damage. Use ropes or straps to secure the handles.

Remove the fuse key and battery from the power tool. This avoids the risk of the motor starting unintentionally.

Lift your cordless lawn mower by the carrying grips only. See illustration above and illustration in "Main Parts" chapter. The cordless lawn mower can be carried in two ways:

– One hand on the upper carrying grip

and one hand on the lower carrying grip.

– One hand on the upper carrying

grip.

Always keep the cutting blade well at a safe distance from your body, especially your feet and legs.

Before Starting Work

WARNING

Always check your lawn mower for proper condition and operation before starting, particularly the switch lever and switch lever lockout. The switch lever and the switch lever lockout must move freely and always spring back to the off position. Never attempt to modify the controls or safety devices.

Keep the handles clean and dry at all times; it is particularly important to keep them free of moisture, pitch, oil, grease or resin in order for you to maintain a firm grip and properly control your lawn mower.

WARNING

The cutting blade must be properly tightened and in safe operating condition. Inspect for loose parts (nuts, screws, etc.). Regularly check the condition and tightness of the cutting blade – with the motor stopped, fuse key and battery removed! Replace damaged cutting blade before using the power tool.

Do not use your lawn mower if safety devices are damaged, the coasting brake does not operate or safety devices are not properly mounted and in working order (e.g. ejection chute shield and lower rear flap).

Inspect grass box frequently and replace with authorized replacement if there are signs of wear or deterioration. Never use your machine with a damaged grass box.

Check contacts in battery compartment for foreign matter. Keep clean.

Fit the battery correctly. Operate the machine only with the

battery compartment closed.

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WARNING

Never operate your lawn mower if it is damaged, improperly adjusted or maintained, or not completely or securely assembled.

English

WARNING

Before you start work, examine the area and clear it of toys, stones, glass, fence wire, metal, trash or other solid objects. The cutting blade could throw objects of this kind.

WARNING

Your lawn mower is a one-person machine. Do not allow other persons in the general work area, even when starting.

During Operation Holding and Controlling the Power Tool Always hold the unit firmly with both

hands on the handle bar and switch lever while you are working. Wrap your fingers and thumbs around the handle bar and switch lever when cutting.

Never attempt to operate your power tool with one hand. Loss of control of the lawn mower resulting in serious or fatal injury may result.

WARNING

To reduce the risk of cut injuries, never put hands or feet near or under the machine or near ejection chute, keeping them. Never touch a moving cutting blade with your hand or any other part of your body. To reduce the risk of injury, never attempt to clear clippings or debris from cutting blade, deck or ejection chute without first switch ing off motor and removing fuse key and battery.

Stay behind the handle when the motor is running.

WARNING

Do not overreach. Keep proper footing and balance at all times. Special care must be taken in slippery conditions and in difficult, overgrown terrain. Watch for hidden obstacles such as tree stumps, roots and ditches to avoid stumbling. Tall grass can hide obstacles. Be extremely cautious when working on slopes or uneven ground. Slopes are a major factor related to slip and fall accidents, which in turn can result in severe injury.

Do not mow extremely steep slopes. To reduce the risk of injury, do not operate your machine on slopes with a grade of more than 25%.

WARNING

Mow parallel to the slope, never up or down. Take particular care when changing direction on slopes.

Do not pull machine backwards unless absolutely necessary. Always look down and behind before and while mowing backwards.

Working Conditions Operate your power tool only under

good visibility and daylight conditions

only. Work carefully.

WARNING

If the vegetation being cut or the surrounding ground is coated with a chemical substance (such as an active pesticide or herbicide), read and follow the instructions and warnings that accompanied the substance at issue.

WARNING

Inhalation of certain dusts, especially organic dusts such as mold or pollen, can cause susceptible persons to have an allergic or asthmatic reaction. Substantial or repeated inhalation of dust and other airborne contaminants, in particular those with a smaller particle size, may cause respiratory or other illnesses. Control dust at the source where possible. Use good work practices, such as operating the unit so that the wind or operating process directs any dust raised by the power tool away from the operator. Follow the recommendations of EPA / OSHA / NIOSH and occupational and trade

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15 m (50 ft)

associations with respect to dust ("particulate matter.") When the inhalation of dust cannot be substantially controlled, i.e., kept at or near the ambient (background) level, the operator and any bystanders should wear a respirator approved by NIOSH / MSHA for the type of dust encountered.

Operating Instructions To switch on motor and begin mowing,

see chapter "Switching On". Start the machine on a flat surface. Do

not tilt the machine when you switch on the motor.

Do not switch on the machine in high grass.

For specific starting instructions, see the appropriate section of your instruction manual.

DANGER

Keep Hands and Feet away from cutting blade.

WARNING

In the event of an emergency, switch off the motor immediately by releasing the switch lever and remove the fuse key and battery.

WARNING

The cutting blade continues to rotate for a short period after the switch lever is released (flywheel effect.)

WARNING

The rotating cutting blade may fling foreign objects directly or by ricochet a great distance. Keep bystanders, especially children, and animals away from the work area.

To reduce the risk of injury ensure that bystanders are at least 50 feet (15 m) away. To reduce the risk of damage to property, also maintain this distance from such objects as vehicles or windows.

Switch off the motor immediately by releasing the switch lever if you are approached.

WARNING

Avoid contact with electrical cables or wires – risk of electric shock.

Operate the machine at walking pace only – never run.

Always switch off the motor by releasing the switch lever before wheeling the machine over surfaces other than grass, to and from the grassed area, and when you remove the grass box.

The machine must not be used for transporting persons, particularly children, or objects.

Do not attach objects to the handlebar.

WARNING

During cutting, check the tightness and the condition of the cutting blade at regular short intervals with the motor and blade stopped and the fuse key and battery removed. If the behavior of the blade changes during use, switch off the motor immediately, wait until the cutting blade stops, remove the fuse key and battery and check the screw securing the blade for tightness and the blade for cracks, wear and damage. Never examine the cutting blade while the motor is running. Never open the ejection chute shield or remove the grass box while the motor is running. There is otherwise a risk of injury from the rotating cutting blade.

If the machine should start to vibrate abnormally, stop the motor, remove the fuse key and battery and check for the cause immediately. Vibration is generelly a warning of trouble.

WARNING

If the cutting blade becomes obstructed, or if there is a blockage in the discharge duct or in the area of the cutting blade, always switch off the motor, remove the fuse key and battery and make sure the cutting blade has stopped before cleaning.

In the event of contact with foreign matter, check the cutting blade for signs of damage. Do not operate your power tool with a damaged or bent blade shaft or motor shaft.

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WARNING

To reduce the risk of unintentional rotation of the cutting blade and injury, always switch off the motor and remove fuse key and battery before replacing the cutting blade. Always switch off the motor by releasing the switch lever before adjusting the cutting height.

WARNING

Do not rely on the tool’s insulation against elec tric shock. To reduce the risk of electrocution, never operate this power tool in the vicinity of any wires or cables (power, etc.) which may be carry ing electric current.

Do not overload your machine during operation to a point where the motor slows down. If motor speed begins to slow, select a higher cutting height or reduce the feed rate.

Switching the machine on and off frequently within a short period may cause the motor to overheat.

If the motor is thermally overloaded during operation, it is designed to cut out automatically and must cool down before it is restarted. Causes of overload:

– Mowing overlong grass or cutting

height set too low.

– Feed rate too high from walking too

fast. – Dirty cooling air inlets (intake slots). Do not mow at temperatures below

41 °F (+5 °C).

Do not mow wet grass.

The drive motor is not waterproof. Never work with the lawn mower in the rain or in wet or very damp locations.

Do not leave the machine outdoors in the rain.

MAINTENANCE, REPAIR AND STORING

If you make a warranty claim for a component which has not been serviced or maintained properly or if nonapproved replacement parts were used, STIHL may deny coverage.

WARNING

Use only identical STIHL replacement parts for maintenance and repair, including the cutting blade. Use of nonSTIHL parts may cause serious or fatal injury.

Strictly follow the maintenance and repair instructions in the appropriate section of your instruction manual. Please also refer to the maintenance chart in this manual.

Always remove the fuse key and battery from the lawn mower before carry ing out any repairs or maintenance work, such as replacing the cutting blade. This avoids the risk of the motor starting unintentionally.

WARNING

Always switch off the motor, remove the fuse key and battery and make sure that the cutting blade is stopped before doing any maintenance or repair work or cleaning the power tool. Do not attempt any maintenance or repair work not described in your instruction manual. Have such work performed by your STIHL servicing dealer only.

Tighten all nuts, bolts and screws after each use.

Regularly check the electrical contacts and ensure that the insulation of the power cord and plug of the charger is in good condition and shows no sign of aging.

Electrical components, e.g. power cord of charger, may only be repaired or replaced by a qualified electrician.

Clean plastic components with a cloth. Do not use aggressive detergents. They may damage the plastic.

Clean cooling air openings in motor housing as necessary.

Do not spray the machine with water. Do not clean your machine with a

pressure washer. The solid jet of water may damage parts of the machine.

Keep the battery guides free from

foreign matter – clean as necessary. Maintain or replace warning and

instruction labels as necessary. Store the power tool in a dry, locked

location with the fuse key and battery removed and out of reach of children.

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Description of Operation Using the Unit

The power tool is operated with a rechargeable battery. Use only STIHL chargers to recharge the battery.

Data exchange

The power tool, battery and charger communicate with each other. The charger charges the battery and the battery supplies the necessary power only if data exchange functions properly. For this reason you should operate your power tool only with the approved STIHL batteries and STIHL chargers.

Mowing

A beautiful and dense lawn is obtained by frequent mowing.

The lawn should not be kept too short in hot and dry weather because it will otherwise be burned by the sun and become unattractive.

A sharp blade produces a more attractive finish than a dull one. Sharpen the blade regularly – see also "Sharpening the Cutting Blade".

Cuttings can be collected in the grassbox or ejected to the rear.

Mowing on Slopes

Your cordless lawn mower can be used on gradients of up to 25°.

Cutting Performance

Disposal

Do not throw cuttings in the garbage can – they can be composted!

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The cutting performance depends on the type of grass and the height of cut selected. Cutting performance is increased by:

– Mowing frequently. – Increasing the height of cut. – Reducing mowing speed. – Allowing lawn to dry before mowing.

English

9929BA001 KN

9929BA032 KN

Mulching Mounting the Handlebar

Mulch Kit

The mulch kit, consisting of a mulching blade, blade mounting screw and mulch plug, converts the conventional mower into a multi-purpose mower. The normal mowing blade is replaced by a mulching blade.

During mowing, clippings can be collected in the grassbox in the usual way. Alternatively, the grassbox can be removed and the rear ejection chute used. For mulching, the grassbox is removed and the mulch plug fitted, see instruction sheet supplied with mulch kit.

Mulching

In the mulching mode, the grass clippings are recirculated in the airstream, recut several times and then blown back onto the lawn. The fine clippings remain on the lawn surface where they decompose quickly and serve as a natural fertilizer. Frequent mulching produces a beautiful, dense lawn. One third of the grass height should be cut in this process.

Recommendation: Mulch at least twice a week in spring and at least once a week in summer/autumn.

Mulching Result

Prerequisites for a good mulching result: – Optimum cutting height (between

setting 3 and 5)

– Lawn should be dry – Use properly sharpened blades – Low mowing speed – Vary mowing direction and overlap

the cuts

– Mow very high grass in gradual

stages

The housing can become clogged and block the blade if the cutting height is too low or the grass is wet.

Replacing the Blade

Blade replacement and maintenance – see "Sharpening the Cutting Blade".

Mounting Upper Handlebar

N Insert screw (1) through the cable

guide (2) and attach the electric cable (3).

N Position the upper handlebar (4) on

the lower handlebar (5).

N Insert screw with cable guide and

screw (6) through the holes from the inside outwards and secure them with the star knob (7).

Cable Clip

The electric cable is secured to the upper handlebar with a cable clip.

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N The distance (a) between the cable

9929BA003 KN

9929BA004 KN

9929BA030 KN

9929BA005 KN

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9929BA007 KN

clip and switch lever lockout must

be about 10 in (25 cm).

Folding the Handlebar Down

English

Grassbox

Assembling the Grassbox

WARNING

The upper handlebar can fold over when the star knobs are loosened – to reduce the risk of injury, always hold the top of the upper handlebar firmly when loosening the star knobs.

The handlebar can be folded down to clean, transport or store your cordless lawn mower.

N Place the cover (1) on the base (2)

of the grassbox – note correct position of guides (arrows).

N Loosen the star knobs (1) and fold

the upper handlebar (2) forwards as far as the braces (3) – do not unscrew the star knobs.

N Push the pins (3) through the holes

from inside until they snap into position.

N The upper handlebar must rest on

the braces (3).

N Apply light pressure to engage the

cover (1) on the base (2).

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9929BA033 KN

9929BA034 KN

9929BA035 KN

9929BA011 KN

9929BA050 KN

9929BA012 KN

Attaching the Grassbox

N Open the flap (1) and hold it in

position. N Engage the lugs (3) of the grassbox

(2) in the recesses (4) on the back of

the mower. N Close the flap (1).

Full Indicator

Emptying the Grassbox

N Switch off the machine.

N Open the flap (1) and hold it in

position.

N Lift the grassbox (2) and remove it

to the rear.

N Close the flap (1).

Adjusting Cutting Height

The mower can be set to five different cutting heights – see also "Specifications".

Setting 1 = lowest cutting height Setting 5 = highest cutting height Setting S: not in all versions, market-

specific In order to reduce the risk of damage,

use the lowest cutting height setting only on perfectly flat lawns (without bumps and hollows).

Adjusting Cutting Height

The grassbox is equipped with a 'full' indicator (1).

The 'full' indicator is lifted up by the airstream created by the rotating cutting blade. The grassbox fills up with cuttings as mowing progresses. This reduces the airstream and the 'full' indicator drops.

N Open the grassbox lock (3) and

swing the cover (4) open.

N Hold the grassbox by the carrying

grips (5) and empty it.

N Ease the height adjusting lever (1)

away from the housing until it is clear of the detents (2).

Higher cutting height:

RMA 370

English

3901BA015 KN

3901BA019 KN

3901BA009 KN

N Use the height adjusting lever (1) to

raise the mower – the lever is

pushed forwards. Lower cutting height: N Use the height adjusting lever (1) to

push the mower down – the lever is

pushed to the rear. N Push the height adjusting lever (1)

against the housing until the

detents (2) engage. The chosen height setting is indicated by

the front detent (3).

Connecting Charger to Power Supply

Mains voltage and operating voltage must be the same.

N Insert the mains plug (1) in the wall

outlet (2).

Charging the Battery

The battery is given a charge of about 30% before leaving the factory.

Recommendation: Fully charge the battery before using your power tool for the first time.

N Connect the charger to the power

supply – mains voltage and operating voltage of the charger must be the same – see "Connecting Charger to Power Supply".

Operate the charger only in enclosed and dry rooms at ambient temperatures between 41°F (5°C) and 104°F (40°C).

RMA 370

A self test is performed after the charger is connected to the power supply. During this process the light emitting diode (1) on the charger lights up green for about 1 second, then red and goes off again.

N Push the battery (1) into the

charger (2) until you feel noticeable resistance – then push it as far as stop.

English

3901BA014 KN

3901BA010 KN

The light emitting diode (3) on the charger comes on when the battery is inserted – see "Light Emitting Diodes (LED) on Charger"

Charging begins as soon as the light emitting diodes (4) on the battery light up green – see "Light Emitting Diodes (LED) on Battery".

The charge time is dependent on a number of factors, including battery condition, ambient temperature, etc., and may therefore vary from the charge time in the "Specifications".

The battery becomes hot during operation. If a hot battery is inserted in the charger, it may be necessary to cool it down before charging. The charging process begins only after the battery has cooled down. The time required for cooling may prolong the charge time.

The battery and charger become warm during the charging process.

AL 100 charger

This charger waits for the battery to cool down before starting the charging process. The battery is cooled normally by heat transfer to the ambient air.

End of charge

The charger switches itself off automatically when the battery is fully charged:

– Light emitting diodes on the battery

go off

– The light emitting diode on the

charger goes off

– The charger's fan is switched off (if

charger is so equipped)

Remove the charged battery from the charger.

Light Emitting Diodes (LED) on Battery

Four light emitting diodes show the battery's state of charge and any problems that occur on the battery or power tool.

N Press button (1) to activate the

display – the display goes off automatically after 5 seconds.

The light emitting diodes can glow or flash green or red.

Light emitting diode glows con tinuously green.

Light emitting diode flashes green.

Light emitting diode glows con tinuously red.

Light emitting diode flashes red.

AL 300 charger

This charger is equipped with a battery cooling fan which is audible when it is running.

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English

3901BA016 KN

80 - 100 %

60 - 80 %

40 - 60 %

20 - 40 %

0 - 20 %

3901BA016 KN

80 - 100 %

60 - 80 %

40 - 60 %

20 - 40 %

0 - 20 %

3901BA017 KN

During Charging Process

The light emitting diodes glow continuously or flash to indicate the progress of charge.

During charging the capacity that is currently being charged is indicated by a green flashing light emitting diode.

When the charging process is completed, the light emitting diodes on the battery go off automatically.

If the light emitting diodes on the battery flash or glow red – see "If the red light emitting diodes glow continuously / flash".

During Operation

The green light emitting diodes glow continuously or flash to indicate the state of charge.

If the light emitting diodes on the battery flash or glow red – see "If the red light emitting diodes glow continuously / flash".

If the red light emitting diodes glow continuously / flash

1 light emitting diode glows con

Battery is too hot

/cold

tinuously red: 4 light emitting

Fault in battery

diodes flash red: 3 light emitting

diodes glow con tinuously red:

3 light emitting diodes flash red:

During charging process: Charging

Power tool is too

hot – allow it to cool down.

Fault in power tool

process starts automatically after the battery has cooled down / warmed up.

RMA 370

English

3901BA019 KN

During operation: Power tool cuts

out – allow battery to cool down; it

may be necessary to take the

battery out of the power tool for this

purpose.

Electromagnetic interference or

fault. Take the battery out of the

power tool and refit it. Switch on the

power tool – if the light emitting

diodes still flash, the battery is

faulty and must be replaced.

Electromagnetic interference or

fault. Take the battery out of the

power tool and refit it. Switch on the

power tool – if the light emitting

diodes still flash, the power tool is

faulty and must be checked by a

servicing dealer – STIHL

recommends an authorized STIHL

servicing dealer.

Light Emitting Diodes (LED) on Charger

The light emitting diode (1) lights up green or flashes red.

Green continuous light ...

... means the following: The battery

– is being charged – is too hot and must cool down

before it is charged

See also "Light Emitting Diodes (LED) on Battery".

The green light emitting diode on the charger goes off as soon as the battery is fully charged.

Red flashing light ...

... means the following: – No electrical contact between

battery and charger – remove and refit the battery

– Faulty battery – see also "Light

Emitting Diodes (LED) on Battery".

– Charger faulty – have checked by a

servicing dealer. STIHL recommends a STIHL servicing dealer.

RMA 370

English

9929BA014 KN

2 1

9929BA015 KN

9929BA016 KN

9929BA017 KN

2 1

9929BA018 KN

Switching On

The battery is given a charge of about 30% before leaving the factory.

Recommendation: Fully charge the battery before using your power tool for the first time.

Fitting the Battery

Open the battery compartment.

N Press in the tab (1) and swing the

cover (2) to the rear.

Fitting the Fuse Key The motor can be started only when the

fuse key is fitted.

Fitting the Battery

N Place the battery (5) in the battery

compartment and push it home.

Closing the Battery Compartment

N Swing the cover (2) down – the tab

(1) must snap into position.

The battery compartment must always be closed during operation.

Switching On

N Press in the switch lockout button

(1) with your right hand and hold it there.

N Pull the switch lever (2) against the

handlebar with your left hand and hold it there – release the lockout button.

N Push the fuse key (3) into the socket

(4) as far as stop.

RMA 370

Do not start the motor in high grass or in the lowest setting (height of cut) since this makes starting more difficult.

English

9929BA019 KN

9929BA013 KN

9929BA014 KN

2 1

9929BA028 KN

9929BA029 KN

Switching Off

N To switch off the motor, release the

switch lever (1) – the cutting blade

comes to a standstill after coasting

for a few seconds. Always remove the battery and fuse key

from the power tool during work breaks and after finishing work.

Coasting Brake

The coasting brake brings the cutting blade to a standstill in less than 3 seconds after the switch lever is released.

1 Coasting brake disengaged. 2 Coasting brake stops the rotating

cutting blade.

Removing the Battery

Opening the Battery Compartment

N Press in the tab (1) and swing the

cover (2) to the rear.

Removing the Battery

N Pull the battery (3) out vertically.

Removing the Fuse Key

N Pull the fuse key (4) out of the

socket (5).

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