Remington RM5520R Betreibershandbuch PDF herunterladen (Seite 6)

MAINTENANCE AND REPAIR INSTRUCTIONS

ADJUSTING THE CHAIN TENSION

The chain must be tensioned whenever the flats on the drive links

hang out of the bar groove (Fig. 30). Check for proper chain tension

before starting the unit and periodically during operation.

NOTE: A new chain tends to stretch. Check the chain tension

frequently and tighten as required.

1. Stop the engine, wait for all moving parts to stop, allow the unit to

cool, disconnect the spark plug wire and disengage the chain brake.

2. Slightly loosen the bar-retaining nuts (Fig. 31).

3. Hold the guide bar tip up and rotate the chain-tensioning screw

(Fig. 32) clockwise with a standard screwdriver to tension the

chain. The desired tension depends on the temperature of the

chain:

• Cold Chain Tensioning - A cold chain is correctly tensioned

when there is no sag on the underside of the guide bar and the

chain seats snugly against the guide bar with the drive links in

the bar groove.

• Warm Chain Tensioning - During normal operation, the

temperature of the chain will increase. The drive links of a

correctly tensioned warm chain will hang approximately 1/16

inch (1.3 mm) out of the bar groove (Fig. 33).

4. Once adjusted, lift the tip of the guide bar up to check for proper

tension (Fig. 34). If the chain is still too loose, release the tip of the

guide bar and turn the chain-tensioning screw 1/2 turn clockwise.

Repeat this process until the desired tension is achieved.

NOTE: If the chain is too tight, it will not rotate. To loosen the chain,

turn the chain-tensioning screw 1/4 turn counterclockwise.

Ensure that the chain can be turned by hand without binding

(Fig. 35). Also note that the chain will not rotate if the chain

brake is engaged.

5. Hold the tip of the guide bar up and securely tighten the bar-

retaining nuts.

REMOVING/REPLACING THE GUIDE BAR AND CHAIN

Use only a low-kickback saw chain that has met kickback

performance per ANSI B175.1 for this saw. This fast-cutting chain

provides kickback reduction when properly maintained.

NOTE: When replacing the guide bar and chain, use only

manufacturer suggested replacement parts. The use of any

other parts may create a hazard or cause product damage

and will VOID the warranty.

Removing the Old Guide Bar and Chain

1. Make sure the engine is off and the spark plug wire is

disconnected. Disengage the chain brake.

2. Remove the bar-retaining nuts with the supplied multi-purpose

tool. Remove the guide bar cover and guide bar plate by pulling

them straight out (Fig. 31).

3. Remove the guide bar and chain from the mounting surface.

4. Remove the old chain from the guide bar.

Installing the New Guide Bar and Chain

1. Lay out the new saw chain in a loop and straighten any kinks. The

cutters on the top of the guide bar should face toward the guide

bar tip in the direction of chain rotation (Fig. 36). If they face

backward, turn the loop over.

2. Place the chain drive links into the bar groove as shown (Fig. 37).

NOTE: Make sure the chain is correctly installed and the cutters are

facing in the correct direction (Fig. 36).

3. Position the chain so there is a loop at the back of the guide bar.

4. Hold the chain in position on the guide bar and place the loop

around the drive sprocket.

5. Fit the guide bar flush against the mounting surface so that the

two guide bar bolts are in the guide

bar slot (Fig. 31)

NOTE: Make sure that the chain-tensioning pin is in the chain-

tensioning pin hole (Fig. 38).

6. Replace the guide bar plate so that the bent edges (top and

bottom) are directed away from the chain.

7. Replace the guide bar cover and bar-retaining nuts. Tighten the

bar-retaining nuts hand tight.

NOTE: Do not over-tighten the bar-retaining nuts. The guide bar

should still be free to move for chain tension adjustment.

8. Adjust the chain tension. Refer to the Adjusting the Chain Tension

instructions above.

ADJUSTING THE AUTOMATIC OILER

The oiler automatically delivers the proper amount of oil to the guide

bar and saw chain. As the engine speed increases, so does the oil

flow. The amount of oil flowing to the guide bar and saw chain may

be changed by turning the adjustment screw with a small standard

screwdriver. Turn the screw clockwise to decrease oil flow or turn the

screw counterclockwise to increase oil flow (Fig. 39).

Flats

Fig. 30

Approx 1/16”

(1.3 mm)

Fig. 33

Fig. 31

Fig. 32

Fig. 36

Fig. 37

Fig. 34

Fig. 35

WARNING: Before inspecting, cleaning or servicing the unit, stop the engine, wait for all moving parts

to stop, allow the unit to cool, disengage the chain brake and disconnect the spark plug wire to ensure

that the unit cannot start. Failure to follow these instructions can result in serious personal injury or

property damage.

WARNING: To avoid possible serious injury, never

touch or adjust the chain while the engine is running.

The saw chain is very sharp; always wear protective

gloves when performing maintenance on the chain.

CAUTION: A chain tensioned while warm, may be

too tight upon cooling. Check the “cold tension”

before next use.

MAINTENANCE AND REPAIR INSTRUCTIONS

Guide Bar Plate

Guide Bar Cover

Bar-retaining Nuts

Guide

Bar Slot

Chain-tensioning Screw

Chain Drive

Links

Chain

Rotation

Cutters

Bar Groove

Chain Drive

Links

Bar Tip

PRUNING

Pruning is the process of trimming limbs from a live tree (Fig. 28).

• Work slowly, while maintaining a proper grip and stance.

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

operation for professionals.

• Do not cut above chest height, as a saw held higher is difficult to control during kickback.

• When pruning trees it is important not to make the finishing cut next to the main limb or trunk until the limb is cut

further out to reduce the weight. This prevents stripping the bark from the main member.

1. Underbuck the branch 1/3 through for the first cut.

2. The second cut should overbuck to drop the branch off.

3. Make the finishing cut smoothly and neatly against the main member so the bark will grow back to seal the wound.

CUTTING SPRINGPOLES

A springpole is any log, branch, rooted stump, or sapling that is bent

under tension by other wood so that it springs back if the wood

holding it is cut or removed (Fig. 29). On a fallen tree, a rooted stump

has a high potential of springing back to the upright position during

the bucking cut to separate the log from the stump.

Fig. 28

Fig. 29

Load

First Cut

1/3 Diameter

Finishing Cut

Second Cut

Springpole

WARNING: If the limbs to be pruned are above

chest height, hire a professional to perform the pruning.

WARNING: Watch for springpoles; these can

strike the operator, causing serious personal injury.

Pruning

WARNING: Use caution when pruning heavy

branches. Falling branches can cause serious injury.

Always wear head protection, plan a safe exit from the

path of falling limbs and stay alert.

OPERATING INSTRUCTIONS

MAINTENANCE SCHEDULE

Perform these required maintenance procedures at the frequency stated in the table. These procedures should also be

a part of any seasonal tune-up.

NOTE: Some maintenance procedures may require special tools or skills. If you are unsure about these procedures,

take your unit to any non-road engine repair establishment, individual or authorized service dealer.

NOTE: Maintenance, replacement or repair of the emission control devices and system may be performed by any

non-road engine repair establishment, individual or authorized service dealer.

NOTE: Please read the California/EPA statement that came with the unit for a complete listing of terms and coverage

for the emissions control devices, such as the spark arrestor, muffler, carburetor, etc.

A good preventive maintenance program of regular inspection and care will increase the life and improve performance

the unit. This maintenance checklist is a guide for such a program.

Cleaning, adjusting and part replacement may be required, under certain conditions, at more frequent intervals than

those indicated.

CUSTOMER RESPONSIBILITY

Fig. 39

Fig. 38

Chain-tensioning

Pin Hole

Drive

Sprocket

Guide Bar Bolts

Automatic Oiler Adjustment Screw

MAINTENANCE CHECKLIST

ACTION

BEFORE EACH

USE

AFTER EACH

USE

AFTER EVERY

10 HOURS OF

OPERATION

AFTER EVERY

20 HOURS OF

OPERATION

Check for loose screws/nuts/bolts and

tighten as needed

Clean the air filter (replace when necessary)

Inspect and clean the spark plug (replace

when necessary)

Inspect and clean the spark arrestor screen

and muffler

Check the bar lube reservoir level (refill

frequently)

Inspect fuel hoses*

Inspect the chain brake components*

Clean the unit and inspect decals

Clean the guide bar groove and oil

passages

Clean the cylinder fins

Check for damaged or worn parts

Check the chain tension (adjust as needed)

Check the sharpness of the chain

Lubricate the sprocket tip

Check the fuel mixture

*If maintenance or replacement are required, have the unit serviced by an authorized service dealer.

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