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12

All pruner service, other than the items listed in the 

instruction manual maintenance instructions, should be 

carried out by a service centre.

CHAIN TENSION

See figures 10 - 11.

 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 to the chain.

 

Stop the engine before setting the chain tension. Make 

sure the guide bar nut is loose to finger tight, turn the 

chain tensioning screw clockwise to tension the chain. 

Refer to 

Replacing the Bar and Chain

 for additional 

information.

NOTE:

 A cold chain is correctly tensioned when there 

is no slack on the underside of the guide bar. The cold 

chain is snug and will hang approximately 4.0 mm ( 

0.160 in) out of the bar groove, as shown in figure 11 ( 

item 38), but it can be turned by hand without binding.

 

Chain must be re-tensioned whenever the flats (item 

37) on the drive links hang out of the bar groove as 

shown in figure 10.

 

The chain tension is correct when the gap is about 3 

-4 mm. Since the chain will stretch when it heats up, 

then it is recommended that the chain tension must be 

checked regularly.

 

During normal operation, the temperature of the chain 

will increase. The drive links of a correctly tensioned 

warm chain will hang approximately 1.30 mm (.050 in) 

out of the bar groove, as shown in figure 11 (item 38).

NOTE:

 New chain tends to stretch; check chain tension 

frequently and tension as required.

 CAUTION

Chain tensioned while warm, may be too tight upon 

cooling. Check the “cold tension” before next use.

REPLACING THE BAR AND CHAIN

See figures 12-15.

 WARNING

To avoid possible serious injury, stop engine before 

replacing the bar, chain, or performing any maintenance 

operation.

 

Remove the bar nut (item 39) and drivecase cover 

(item 40).

 

The bar contains a bar stud slot (item 43) that fits over 

the bar stud (item 41). The bar also contains a chain 

tensioning pin hole (item 44) which fits over the chain 

tensioning pin.

 

Place the bar onto the bar stud so that the chain 

tensioning pin fits into the chain tensioning pin hole.

 

Fit the chain over the sprocket and into the bar groove. 

The cutters on the top of the bar should face toward 

the bar tip, in the direction of the chain rotation.

 

Replace the drivecase cover and install the bar nut. 

Tighten the bar nut finger tight only. The bar must be 

free to move for tension adjustment.

 

Remove all slack from chain by turning the chain 

tensioning screw (item 46) clockwise, assuring that 

the chain seats into the bar groove during tensioning.

 

Lift the tip of the bar up to check for sag. Release the 

tip of the bar, and turn the chain tensioning screw 1/2 

turn clockwise. Repeat this process until sag does not 

exist.

 

Hold the tip of the bar up and tighten the bar nut (item 

39) securely.

 

The chain tension is correct when the gap is about 3 

-4 mm. Since the chain will stretch when it heats up, 

then it is recommended that the chain tension must be 

checked regularly.

NOTE: 

If chain is too tight, it will not rotate. Loosen 

the bar nut slightly and turn adjusting screw 1/4 turn 

counterclockwise. Lift the tip of the bar up and retighten 

bar nut.

ADJUSTING THE IDLE SPEED

See figure 18.

If the chain turns at idle, the idle speed screw (item 47) 

needs adjusting on the engine. Turn the idle speed screw 

counterclockwise to reduce the idle RPM and stop the 

chain movement. If the saw chain still moves at idle speed, 

contact a service dealer for adjustment and discontinue 

use until the repair is made.

AUTOMATIC BAR AND CHAIN LUBRICATION

See figure 19.

 

Use a premium blend of Bar and Chain Lubricant. It is 

designed for chains and chain oilers and is formulated 

to perform over a wide temperature range with no 

dilution required.

 

Remove the cap and carefully pour approximately 230 

ml of bar and chain lubricant into the bar lube reservoir.

 

Replace the cap and tighten securely.

 

Check and refill the bar lube reservoir every time the 

engine is fuelled.

NOTE: 

Do not use dirty, used or otherwise contaminated 

lubricant. Damage may occur to the oil pump, bar, or 

chain.

Содержание RPP254FEJSO

Страница 1: ...Original Instructions RPP254FEJSO 25 4cc POLE PRUNER Important It is essential that you read the instructions in this manual before assembling operating and maintaining the product Subject to technic...

Страница 2: ...e fitting clothing short pants or go barefoot Do not wear jewellery of any kind Heavy protective clothing may increase operator fatigue which could lead to heat stroke During weather that is hot and h...

Страница 3: ...nd while moving between pruning positions Identify the quick release mechanism and practice using it before you start using the product Its correct use may prevent serious injury in case of an emergen...

Страница 4: ...e development of these symptoms There are measures that can be taken by the operator to possibly reduce the effects of vibration Keep your body warm in cold weather When operating the product wear glo...

Страница 5: ...t attempt to use the product until you read thoroughly and understand completely the operator s manual If you do not understand the warnings and instructions in the operator s manual do not use the pr...

Страница 6: ...rotational frequency at idle 2600 3200 min 1 Fuel consumption in accordance with ISO 8893 at maximum engine performance 0 54 kg h Specific fuel consumption in accordance with ISO 8893 at maximum engin...

Страница 7: ...sure no breakage or damage occurred during shipping Do not discard the packing material until you have carefully inspected and satisfactorily operated the product PACKING LIST Power head assembly Pru...

Страница 8: ...nob Push in the button and twist the shafts to remove and separate ends AUTOMATIC BAR AND CHAIN LUBRICATION Add bar and chain lubricant in the bar lube reservoir before starting the engine of the powe...

Страница 9: ...ng Chart 1 litre 20 ml 2 litres 40 ml 3 litres 60 ml 50 1 2 4 litres 80 ml 5 litres 100 ml WARNING The product may throw objects during operation causing injury to the operator or to bystanders Always...

Страница 10: ...et the choke lever to choke position 6 Hold down the throttle lock and then squeeze the throttle trigger completely with your left hand and keep the throttle trigger squeezed completely through steps...

Страница 11: ...t typical cutting application is to position the product at an angle of 60 or less depending on the specific situation as shown As the angle of the pruner shaft to ground increases the difficulty of m...

Страница 12: ...pin hole item 44 which fits over the chain tensioning pin Place the bar onto the bar stud so that the chain tensioning pin fits into the chain tensioning pin hole Fit the chain over the sprocket and...

Страница 13: ...f the tooth Lift file away from the steel on each return stroke Put a few firm strokes on every tooth File all left hand cutters in one direction Then move to the other side and file the right hand cu...

Страница 14: ...will remove all fuel that could become stale and leave varnish and gum in the fuel system Store the product in a cool dry and well ventilated place that is inaccessible to children Keep away from corr...

Страница 15: ...er to and follow normal starting instructions If the engine still fails to start repeat the procedure with a new spark plug Starter cord is hard to pull Contact a service centre Engine does not reach...

Страница 16: ...Techtronic Industries Australia Pty Ltd 31 Gilby Road Mount Waverley VIC 3149 Melbourne Australia Techtronic Industries New Zealand Ltd 2 Landing Drive Mangere Auckland 2022 New Zealand 960709006 01...

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