TrimmerPlus PS720r Bedienungsanleitung

P/N 769-03340A (09/07)

For service call 1-800-345-8746, or 1-800-668-1238 in Canada to

obtain a list of authorized service dealers near you.

DO NOT RETURN THE UNIT TO THE RETAILER. PROOF OF

PURCHASE WILL BE REQUIRED FOR WARRANTY SERVICE.

THIS PRODUCT IS COVERED BY ONE OR MORE U.S. PATENTS.

OTHER PATENTS PENDING.

Service on this unit both within and after the warranty period should be

performed only by an authorized and approved service dealer.

Copy the serial number here:

Copy the model and parent part number here:

All information, illustrations, and specifications in this manual are based on

the latest product information available at the time of printing. We reserve

the right to make changes at any time without notice.

TABLE OF CONTENTS

Service Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

Rules for Safe Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Know Your Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Assembly Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Maintenance and Repair Instructions . . . . . . . . . . . . . . . . . . . . . .9

Replacing Saw Chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Oiling the Chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Cleaning and Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .E15

SAVE THESE INSTRUCTIONS

S/N : ITEM :

MODEL :

Before beginning, locate the unit’s model plate. It lists the model and

serial numbers of your unit. Refer to the sample plate below and

copy the information for future reference.

Pole Saw

OPERATOR'S MANUAL

PS720r

this unit. Wear a face or dust mask if the operation is dusty.

• Wear heavy, long pants, boots, gloves and a long sleeve shirt. Do

not wear loose clothing, jewelry, short pants, sandals or go

barefoot. Secure hair above shoulder level.

• Use the unit only in daylight or good artificial light.

• Use the right tool. Only use this tool for the purpose intended.

• Always stop the engine/motor when operation is delayed or when

walking from one location to another.

• Use only genuine factory replacement parts and accessories for

this unit. These are available from your authorized service dealer.

Use of any unauthorized parts or accessories could lead to serious

injury to the user or damage to the unit, and void your warranty.

KICKBACK SAFETY PRECAUTIONS

• With a basic understanding of kickback, you can reduce or eliminate

the element of surprise. Sudden surprise contributes to accidents.

• Grip saw firmly. Hold the pole saw firmly with both hands when the

motor is running. Keep a good firm grip on the saw with both hands,

the right hand on the rear handle, and the left hand on the front handle.

• Do not let the nose of the guide bar contact a log, branch, ground

or other obstruction.

• Always cut with the engine running at full speed. Fully squeeze

the throttle trigger and maintain a steady cutting speed.

• Do not over reach.

• Follow the manufacturer’s sharpening and maintenance instructions

for the saw chain.

• Use only replacement bars and chains specified by the manufacturer

or the equivalent.

OTHER SAFETY PRECAUTIONS

• DO NOT operate a pole saw with one hand! Serious injury to the

operator, helpers, or bystanders may result from one-handed

operation. A pole saw is intended for two-handed use.

• Do not operate a pole saw if you are fatigued.

READ ALL INSTRUCTIONS

BEFORE OPERATING

• Carefully read and understand the operator's manual of the unit

that powers this attachment.

• Read this operating instruction manual carefully. Be thoroughly

familiar with the controls and the proper use of the equipment.

Know how to stop the unit and disengage the controls quickly.

• Do not operate this unit when tired, ill, or under the influence of

alcohol, drugs, or medication.

• Never allow children to operate the equipment. Never allow

adults unfamiliar with the instructions to use the unit. Never allow

adults to operate the equipment without proper instruction.

• All guards and safety attachments must be installed properly

before operating the unit.

SPECIAL SAFETY WARNINGS FOR GAS POWERHEADS

• Store fuel only in containers specifically designed and approved

for the storage of such materials.

• Always stop the engine and allow it to cool before filling the fuel tank.

Never remove the cap of the fuel tank, or add fuel, when the engine

is hot. Never operate the unit without the fuel cap securely in place.

Loosen the fuel tank cap slowly to relieve any pressure in the tank.

• Mix and add fuel in a clean, well-ventilated area outdoors where

there are no sparks or flames. Slowly remove the fuel cap only

after stopping engine. Do not smoke while fueling or mixing fuel.

Wipe up any spilled fuel from the unit immediately.

• Avoid creating a source of ignition for spilled fuel. Do not start

the engine until fuel vapors dissipate.

• Move the unit at least 30 feet (9.1 m) from the fueling source and site

before starting the engine. Do not smoke. Keep sparks and open

flames away from the area while adding fuel or operating the unit.

• Never start or run the unit inside a closed room or building.

Breathing exhaust fumes can kill. Operate this unit only in a well

ventilated area outdoors.

POLE SAW OPERATING PROCEDURES

• Keep bystanders, especially children and pets, at least 50 ft (15

m) away.

• Wear safety glasses or goggles that are marked as meeting ANSI

Z87.1-1989 standards, and ear/hearing protection when operating

• IMPORTANT SAFETY INSTRUCTIONS •

Read the Operator’s Manual and follow all warnings and safety

instructions. Failure to do so can result in serious injury to the

operator and/or bystanders.

FOR QUESTIONS, CALL 1-800-345-8746 IN U.S. OR

1-800-668-1238 in CANADA

The purpose of safety symbols is to attract your attention to possible dangers. The safety symbols, and their explanations, deserve your

careful attention and understanding. The safety warnings do not by themselves eliminate any danger. The instructions or warnings they give

are not substitutes for proper accident prevention measures.

NOTE: Advises you of information or instructions vital to the

operation or maintenance of the equipment.

SYMBOL MEANING

SAFETY ALERT: Indicates danger, warning or

caution. Attention is required in order to avoid serious

personal injury. May be used in conjunction with other

symbols or pictographs.

DANGER: Failure to obey a safety warning will result

in serious injury to yourself or to others. Always follow

the safety precautions to reduce the risk of fire, electric

shock and personal injury.

WARNING: Failure to obey a safety warning can

result in injury to yourself and others. Always follow the

safety precautions to reduce the risk of fire, electric

shock and personal injury.

CAUTION: Failure to obey a safety warning may

result in property damage or personal injury to yourself

or to others. Always follow the safety precautions to

reduce the risk of fire, electric shock and personal injury.

RULES FOR SAFE OPERATION

SYMBOL MEANING

WARNING: When using the unit, you must follow the

safety rules. Please read these instructions before operating

the unit in order to ensure the safety of the operator and any

bystanders. Please keep these instructions for later use.

WARNING: Gasoline is highly flammable, and its

vapors can explode if ignited. Take the following

precautions:

WARNING: Kickback may occur when the nose or

tip of the guide bar touches an object, or when the

wood closes in and pinches the saw chain in the cut.

Tip contact in some cases may cause a lightning-fast

reverse action, kicking the guide bar rapidly back

towards the operator. Pinching the saw chain along the

top of the guide bar may push the guide bar rapidly

back towards the operator. Either of these reactions

may cause you to lose control of the saw, which could

result in serious injury to the user.

Do not rely exclusively upon the safety devices built

into your saw. As a pole saw user, you should take

several steps to keep your cutting jobs free from

accident or injury.

RULES FOR SAFE OPERATION

• Do not wear loose clothing or jewelry, as they can get caught in

moving parts. Non-skid footwear is recommended when working

outdoors. Wear protective hair covering to contain long hair.

• Use safety glasses, safety footwear, snug fitting clothing,

protective gloves, and protective hearing and head gear.

• Use caution when handling fuel. Move the pole saw at lest 30

feet (9.1 m) from the fueling point before starting the engine.

• Keep the work area clean. Cluttered areas invite injuries. Do not

start cutting until you have a clear work area, secure footing, and

a planned retreat path from the falling branches.

• Stay Alert. Watch what you are doing. Use common sense. Do

not operate the pole saw when you are tired. Keep all parts of

your body away from the saw chain when the motor is operating.

Before you start the saw, make sure the saw chain is not

contacting anything.

• Disconnect the pole saw when not in use, before servicing, and

when changing accessories and attachments such as saw chain

and guard.

• Check damaged parts. Before further use of the pole saw, a

guard or other part that is damaged should be carefully checked

to determine that it will operate properly and perform its intended

function. Check for alignment of moving parts, binding of moving

parts, breakage of parts, mounting, and any other conditions that

may affect its operation. A guard or other part that is damaged

should be properly repaired or replaced by an authorized service

center, unless otherwise indicated in this instruction manual.

• Use extreme caution when cutting small sized brush and sapling,

as slender material may catch the saw chain and be whipped

toward you or pull you off balance.

• Do not operate a pole saw in a tree unless you are specifically

trained to do so. When cutting a limb that is under tension, be

alert for spring back so that you will not be struck when the

tension in the wood fibers is released.

• Do not expose the pole saw to rain. Do not use the pole saw in

damp or wet locations.

• Do not use the pole saw in the presence of flammable liquids or

gases.

• All pole saw service, other than the items listed in the user

manual safety and maintenance instructions, should be

performed by competent pole saw personnel. Do not attempt to

repair it yourself; there are no user serviceable parts inside.

• The pole saw will do a better and safer job when used at the rate

for which it was intended.

• Use the right tool. Cut wood only. Do not use the pole saw for

purposes for which it was not intended. For example, do not use

the pole saw for cutting plastic, masonry, or non-building materials.

• Use devices, such as low-kickback chain, guide bar nose

guards, chain brakes and special guide bars, which reduce the

risks associated with kickback.

• There are no other replacement components for achieving

kickback protection in accordance with CSA Z62.3.

• Do not operate a pole saw that is damaged, improperly adjusted,

or not completely and securely assembled. Be sure that the saw

chain stops moving when the trigger is released.

• Do not attempt operations beyond your capacity or experience.

• Never remove, modify or make inoperative any safety device

furnished with your unit.

• This saw is classified by CSA as a Class 2C saw. It is intended for

infrequent use by homeowner’s, cottagers and campers, and for

such general applications such as clearing, pruning, cutting

firewood, etc. It is not intended for prolonged use. If the intended

use involves prolonged periods of operation, this may cause

circulatory problems in the user’s hands due to vibration. It may

be appropriate to use a saw having an anti-vibration feature.

• Safety clothing required by your safety organizations, government

regulations, or your employer should be used; otherwise, snug

fitting clothing, safety footwear, and hand and ear protection

should be worn.

• Low-kickback saw chain is chain that has met the kickback

performance requirements of ANSI B175.1-1991 and is in

accordance with CSA Z62.3. Do not use other replacement chain

unless it has met these requirements for your specific model.

• Do not use any other cutting attachment or accessories. Use only

original equipment manufacturer replacement parts and accessories,

which are designed specifically to enhance the performance and

maximize the safe operation of our products. Failure to do so may

cause poor performance and possible injury. Use only the chain and

bar supplied with this product. Do not use any other cutting

attachment. Use of such attachments will void your factory warranty

and could result in serious bodily injury.

• Never touch the chain or attempt to service the saw while the

engine is running. Make sure all moving parts have stopped.

Allow the chain to cool, as the chain can be hot.

• Check the bar and chain at frequent intervals for proper

adjustment. Make sure the bar and chain are properly tightened

and sharpened. Visually inspect for damage. Repair any damage

before restarting or operating the pole saw.

• Do not cut near electrical cables or power lines.

• Do not use the pole saw to fell a tree. Use a standard chain saw

for this application.

MAINTENANCE AND STORAGE

• Allow the unit to cool before storing or transporting. Be sure to

secure the unit while transporting.

• Always use the transport guard on the bar and chain during

transportation and storage.

• Store the unit in a locked up and dry or high and dry place to

prevent unauthorized use or damage, out of the reach of

children.

• Never douse or squirt the unit with water or any other liquid. Keep

handles dry, clean and free from debris. Clean after each use.

• Keep these instructions. Refer to them often and use them to

instruct other users. If you loan someone this unit, also loan

them these instructions.

• Only qualified personnel should perform any repairs or

maintenance procedures that are not described in this manual.

SAVE THESE INSTRUCTIONS

SAFETY AND INTERNATIONAL SYMBOLS

This operator's manual describes safety and international symbols and pictographs that may appear on this product.

Read the operator's manual for complete safety, assembly, operating, maintenance, and repair information.

RULES FOR SAFE OPERATION

•WARNING: READ OPERATOR'S MANUAL

ead the operator’s manual(s) and follow all warnings

and safety instructions. Failure to do so can result in

serious injury to the operator and/or bystanders.

•GUIDE BAR WARNING

Contact of the guide bar tip with any object should be

avoided. Tip contact may cause the guide bar to move

suddenly upward and backward, which may cause

serious injury.

SYMBOL MEANING

•WEAR EYE AND HEARING PROTECTION

WARNING: Thrown objects and loud noise can

cause severe eye injury and hearing loss. Wear eye

protection meeting ANSI Z87.1 standards and ear

protection when operating this unit. Use a full face

shield when needed.

• HOT SURFACE WARNING

Do not touch a hot surface. You may get burned.

These parts get extremely hot from operation. They

remain hot for a short time after the unit is turned off.

•KEEP BYSTANDERS AWAY

WARNING: Keep all bystanders, especially

children and pets, at least 50 feet (15 m) from the

operating area.

•POWER LINES CAN CAUSE SEVERE

INJURY

WARNING: Do not operate unit near power lines.

Contact with a power line may cause serious injury

or damage to the unit. Maintain a clearance of at

least 50 ft (15 m) between the pole saw (including

any branches it is contacting) and any electrical line.

•USE BOTH HANDS

Always use both hands while operating the chain

saw. Never use only one hand to operate the saw.

•SAFETY ALERT SYMBOL

Indicates danger, warning or caution. May be used in

conjunction with other symbols or pictographs.

SYMBOL MEANING

•CHAIN OIL ADJUSTMENT INDICATOR

The chain must be continously coated with oil to

function properly. Make sure to set the Oil

Adjustment Screw to allow a sufficient amount of oil

to flow continuously onto the chain.

Use a 3/32-inch Allen wrench to adjust the Oil

Adjustment Screw.

Guide Bar

Saw Chain

Drive Shaft

Guide Bar

Nose

Chain

Guard

Hook

Bar Retaining Nuts

KNOW YOUR UNIT

Extension

Boom

Tension

Adjustment Screw

Oil Adjustment Screw

Oil Reservoir

Chain Transport

Guard

Hanger

Coupler

Oil Tank Cap

Shipping

Cap

The add-on should be installed with the release button in the

primary hole.

Check Flex Shaft Engagement Prior to Using

1. Start the unit.

2. Briefly engage and release the trigger.

3. Check that add-on is operating.

4. If the add-on is not operating, remove add-on and repeat steps

for installing the add-on.

5. Recheck operation of add-on attachment.

4. Turn the knob clockwise to tighten (Fig. 3).

ASSEMBLING THE COUPLER

The Trimmer Plus add-on may be mounted to different power tools.

The instruction manuals for the basic power tool and the

attachment contain the information necessary for operation of the

power tool combination. Therefore, aways read BOTH instruction

manuals before using the power tool for the first time. Keep the

manuals in a safe place for future reference.

NOTE: To make installing or removing the add-on easier, place the

unit on the ground or on a work bench.

Removing the Add-On or Extension Boom

1. Turn the knob counterclockwise to loosen (Fig. 1).

Fig. 1

Coupler Release Button Guide Recess

Knob

Primary Hole

Upper Shaft

Housing

Coupler

2. Press and hold the release button (Fig. 1).

3. While firmly holding the upper shaft housing, pull the add-on or

extension boom out of the coupler (Fig. 2).

Fig. 2

Fig. 3

Knob

Lower Shaft

Housing

Release Button

Knob

Clockwise

Counterclockwise

ASSEMBLY INSTRUCTIONS

WARNING: Prior to operation, read and understand

the operator’s manual for unit to be used with this add-

on.

WARNING: To avoid serious personal injury and

damage to the unit, shut the unit off before removing or

installing add-ons.

CAUTION: The add-ons with the coupler system is

to be used in the primary hole only. Using the wrong

hole could lead to personal injury or damage to the unit.

CAUTION: Lock the release button in the primary

hole (Fig. 2) and securely tighten the knob before

operating this unit.

WARNING: To avoid serious personal injury and

damage to the unit, NEVER install more than one

extension boom to a power tool.

Installing the Add-On or Extension Boom

1. Remove the hanger or shipping cap from the top of the shaft

housing.

2. Turn knob counterclockwise to loosen (Fig. 1).

3. While firmly holding the add-on or extension boom, push it

straight into the coupler (Fig. 2).

NOTE: Aligning the release button with the guide recess will help

installation (Fig. 1).

FILLING THE OIL RESERVOIR

Follow the following steps to fill the oil reservoir:

1. Place the unit on a flat surface.

2. Remove the Oil Tank Cap.

3. Open the oil bottle provided with your unit.

4. Pour oil into the reservoir until filled (7 oz.).

NOTE: The oil reservoir may be filled to the lip of the fill opening without

damaging the unit.

DANGER: Failure to fill the oil reservoir will cause

irreparable damage to the unit. Make sure the oil

reservoir is always filled.

WARNING: Oil constantly flows from the oil

reservoir to oil the chain. Check the oil level constantly

so that the oil level does not drop below half full.

5. Repeat steps 1–4 for the add-on or extension boom.

Fig. 4

Fig. 5

Fig. 6

OPERATING PRECAUTIONS

1. Keep bystanders 50 feet (15 meters) away when operating the

saw.

2. Do not use the pole saw to cut down trees. Use a chain saw

without a pole attachment.

3. Make sure the oil tank is full and oil is lubricating the chain

prior to starting.

4. Grip pole saw securely—one hand on the grip, the other on

the handle.

5. Keep finger off the trigger until ready to make cut.

6. Before starting the pole saw, make sure the chain is not

touching anything.

7. Keep all parts of your body away from the chain when the saw

is running.

8. Do not force the chain saw while cutting. Apply light pressure.

It will do the job better and safer at the rate for which it was

intended.

9. When cutting limbs or branches that are under tension, use

extreme caution. Be alert for wood springing back. When

wood tension is released, the limb could spring back and

strike operator causing severe injury or death.

10. When carrying pole saw from one place to another:

• hold pole at balance point

• keep guide bar and chain to the rear

11. Do not cut small brush and saplings with the pole saw.

Slender matter may catch in the chain and be whipped toward

you. This could also pull you off balance.

12. Never stand directly under the limb you are trimming. Always

position yourself out of the path of falling debris (Fig. 4).

13. Never stand on a ladder or other type of unstable support

while using the pole saw.

14. Always use both hands to operate pole saw. Keep a firm,

steady pressure on the pole saw while cutting, but do not try

to force the saw through the wood.

15. Do not use the pole saw to cut limbs larger than 4” (10 cm)

in diameter.

16. Keep other persons away from cutting end of pole saw and at

a safe distance from work area. (Fig. 5).

17. Do not use the pole saw near cable, electric power or

telephone lines. Maintain a minimum clearance of 50 feet (15

m) from all power lines (Fig. 6).

STARTING INSTRUCTIONS

Start and operate your pole saw without assistance. For specific

starting instructions, see the appropriate section of your powerhead

manual. Proper starting methods reduce the risk of injury.

1. Place the pole saw on firm ground or other solid surface in an

open area.

2. Maintain good balance and secure footing.

OPERATING INSTRUCTIONS

WARNING: Dress properly to reduce the risk of

injury when operating this unit. Do not wear loose

clothing or jewelry. Wear eye and ear/hearing protection.

Wear heavy long pants, boots and gloves. Wear a hard

hat. Use a full face shield when needed.

WARNING: To reduce the risk of fire and burn

injuries, start the engine at least 30 ft. (9.1 m) from the

fueling spot, outdoors only.

OPERATING TIPS

• Avoid kickback. Kickback can result in severe injury or death.

• Do not operate the pole saw while in a tree, on a ladder or any

other unstable work surface, or in any awkward position. You

may lose control of the pole saw causing severe injury.

• Do not extend your arms above shoulders when using the pole

saw.

• Seek professional help if you are facing conditions beyond your

ability.

• Trimming a tree is the process of cutting limbs from a living tree.

Make sure your footing is firm. Keep your feet apart. Divide your

weight evenly on both feet.

• Before starting unit, always check the chain lubrication and oil

tank level.

NOTE: The chain must be continously coated with oil to function

properly. Make sure that the oil adjustment screw is set

appropriately.

Fig. 7

Cut 2

Cut 4

Cut 3

Cut 1

6”

2 - 4”

To trim a limb (pruning):

1. Make the first cut six inches from tree trunk on the underside

of the limb. Use the top of the guide bar to make this cut. Cut

a third of the way through the diameter of the limb (Fig. 7).

2. Move two to four inches farther out on the limb. Make the

second cut from above the limb. Continue the cut until you cut

the limb off.

3. Make the third cut as close to the tree trunk as possible on

underside of limb stub. Use the top of the guide bar to make

this cut. Cut a third through the diameter of stub.

4. Make the fourth cut directly above the third cut. Cut down to

meet the third cut. This will remove the limb stub.

OPERATING INSTRUCTIONS

WARNING: Kickback may occur when the nose or

tip of the guide bar touches an object, or when the

wood closes in and pinches the saw chain in the cut.

Tip contact in some cases may cause a lightning-fast

reverse action, kicking the guide bar rapidly back

towards the operator. Pinching the saw chain along the

top of the guide bar may push the guide bar rapidly

back towards the operator. Either of these reactions

may cause you to lose control of the saw, which could

result in serious injury to the user.

Do not rely exclusively upon the safety devices built

into your saw. As a chain saw user, you should take

several steps to keep your cutting jobs free from

accident or injury.

WARNING: If the oil tank runs out, the oil ajustment

screw hole becomes clogged, or the chain fails to get

proper lubrication in any fashion, the chain will overheat

and cause irreversible damage to the unit and may

result in severe injury. Excessive heat from friction can

lead the chain to catastrophically fail and come off the

bar while operating.

SAW CHAIN REPLACEMENT/INSTALLATION

1. Using a straight screwdriver turn tension adjustment screw

counterclockwise (Fig. 8, A) 4 turns.

2. Remove the bar retaining nuts and screw. Then take off the

chain guard (Fig. 8, B).

Fig. 8

Bar Retaining Nuts

Chain

Guard

Screw

Tension

Adjustment

Screw

Fig. 9

3. Take off the chain and bar.

4. Prepare new chain and/or bar, and fit the chain into the groove

in the bar.

5. Loop the saw chain over the drive sprocket with the cutting

edges of the chain pointing in the direction of rotation (Fig. 9).

Fig. 10

Fig. 11

SAW CHAIN TENSION ADJUSTMENT

Proper tension of the saw chain is extremely important and must

be checked before starting, as well as during, any cutting

operation. Taking the time to make needed adjustments to the saw

chain will result in improved cutting performance and prolonged

chain life.

NOTE: A new chain and bar will need readjustment after as few

as 5 cuts. This is normal during the break-in period, and

the interval between future adjustments will lengthen

quickly (Fig. 11).

To adjust the saw chain tension:

1. Loosen the bar retaining nuts so they are hand tight (Fig. 8, B).

2. Holding the nose of the bar up, use the screwdriver to turn the

guide bar adjustment screw clockwise to tighten the chain

(Fig. 8, A). Turning the screw counterclockwise loosens the

chain on the guide bar.

3. While wearing heavy duty work gloves (after you’ve made the

adjustment), move the saw chain back and forth on the guide

bar to be sure the chain moves freely and is in proper mesh

with the sprocket. Never move the chain with your bare hands.

NOTE: If the chain is difficult to rotate or if it binds on the guide

bar, there is too much tension applied and it must be

adjusted. To decrease tension, turn the adjustment screw

counterclockwise, slowly. Move the chain back and forth

until it moves freely.

4. Holding the nose in upper position, securely tighten the bar

retaining nuts.

MAINTENANCE AND REPAIR INSTRUCTIONS

WARNING: Whenever handling the saw chain,

always wear work gloves for protection against sharp

cutting edges.

CAUTION: If a chain is too loose or too tight, the

bar chain and saw bearings will wear more rapidly.

Refer to Figure 11 for information concerning correct

cold tension (A), correct warm tension (B), and a chain

in need of adjustment (C).

6. Adjust the tension adjustment screw (Fig. 8, A) to allow

insertion of the bar (Fig. 10). Make sure the chain follows the

slot in the guide bar and adjust the tension adjustment screw

to make the chain fit snugly on the underside of the bar.

7. Install the chain guard and tighten bar retaining nuts and

screw (Fig. 8, B).

OILING THE CHAIN

The pole saw chain is self-lubricating. Oil is dispersed onto the

chain as the unit is used. Keep an adequate amount of oil in the

oil tank. Use the bar-chain oil provided in the hardware pack.

Always use bar-chain and sprocket oil or similar chain saw oil.

Setting the Oil Adjustment Screw

The Oil Adjustment Screw is located on top of the gearbox

assembly (Fig. 12).

1. Insert a 3/32-inch Allen wrench into the oil adjustment screw.

2. Turn the screw counterclockwise to increase oil flow to the chain, or

3. Turn the screw clockwise to restrict the oil flow to the chain.

GUIDE BAR MAINTENANCE

NOTE: Proper maintenance of the guide bar is essential to the

performance of your pole saw. Proper guide bar

maintenance will keep your saw in good working order.

Most guide bar problems can be prevented merely by keeping the

chain saw well maintained.

Incorrect filing and non-uniform cutter and depth gauge settings

cause most guide bar problems, primarily resulting in uneven bar

wear. As the bar wears unevenly, the rails widen, which may cause

chain clatter and difficulty in making straight cuts.

Insufficient guide bar lubrication and operating the saw with a

chain that is too tight will contribute to rapid bar wear. Refer to

Saw Chain Tension Adjustment and Oiling the Chain.

To help minimize bar wear, the following guide bar maintenance is

recommended:

Bar Wear

Turn guide bar frequently at regular intervals (for example, after 5

hours of use), to ensure even wear on top and bottom of bar.

Bar Grooves

Bar grooves (or rails which support and carry the chain) should be

cleaned if the saw has been heavily used or if the saw chain

appears dirty. Rails should always be cleaned every time the saw

chain is removed.

To clean guide bar rails:

1. Remove chain guard, bar, and chain. Refer to Saw Chain

Replacement / Installation.

2. Using a screwdriver, putty knife, wire brush or other similar

instrument, clear residue from the rails on the guide bar (Fig. 13).

This will keep the oil passages open to provide proper

lubrication to the bar and chain.

3. Ensure the sprocket in the bar turns freely during cleaning.

4. Reinstall the bar, chain, chainguard, screw, and bar retaining

nuts. Refer to Saw Chain Replacement / Installation.

Oil Passages

Oil passages at the bar pad should be cleaned to ensure proper

lubrication of the bar and chain during operation. This can be done

using a soft wire small enough to insert into the oil discharge hole.

MAINTENANCE AND REPAIR INSTRUCTIONS

WARNING: Ensure that the unit is off and the spark

plug is disconnected (gas powerheads) before

performing any maintenance on your saw.

Fig. 12

Oil

Adjustment

Screw

Gearbox Assembly

Fig. 13

WARNING: If the oil tank runs out, the oil ajustment

screw hole becomes clogged, or the chain fails to get

proper lubrication in any fashion, the chain will overheat

and cause irreversible damage to the unit and may

result in severe injury. Excessive heat from friction can

lead the chain to catastrophically fail and come off the

bar while operating.

Andere Handbücher für PS720r

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Andere TrimmerPlus Stangensäge Handbücher

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TrimmerPlus PS720r Bedienungsanleitung

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