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20. When transporting your chain saw. make sure the appropriate
guide bar scabbard is in place.

KICKBACK SAFETY PRECAUTIONS FOR CHAIN SAW USERS

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
reaction.kicking

the

guide

bar

up

and

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 personal injury.
Do not rely exclusively on the safety devices built into your saw. As a
chain saw user you should take several steps to keep cutting jobs free
from accident or injury.
(1) With a basic understanding of kickback you can reduce or
eliminate the element of surprise. Sudden surprise contributes to
accidents.

(2) Keep a good grip on the saw with both hands. the right hand on the
rear handle, and the left hand on the front handle. when the engine is
running, Use a firm grip with thumbs and fingers encircling the chain
saw handles. A firm grip will help you reduce kick-back and maintain
control of the saw.

(3) Make certain that the area in which you are acting is free from
obstructions. Do not let the nose of the guide bar contact a log. branch,
or any other obstructions which could be hit while you are operating
the saw.

(4) Cut at high engine speeds.

(5) Do not overreach or cut above shoulder height.

(6)

Follow

the

manufacturers

sharpening

and

maintenance

instructions for the saw chain.

(7) Only use replacement bars and chains specified by the
manufacturer or the equivalent.

Содержание BPTYR2500

Страница 1: ...powertools com au Web www bosspowertools com au INSTRUCTION MANUAL PETROL TOP HANDLE CHAINSAW 25 4cc WARNING Read all safety warnings and all instructions and retain this manual for future reference F...

Страница 2: ...el and Chain Oil 7 5 Operating the Engine 8 6 Sawing 11 7 Maintenance 14 8 Maintenance of Saw Chain and Guide Bar 20 9 Troubleshooting Guide 23 10 Specifications 24 Read operator s instruction book be...

Страница 3: ...4 Do not allow other persons to be near the chain saw when starting or cutting Keep bystanders and animals out of the work area Children pets and bystanders should be a minimum of 10 m away when you...

Страница 4: ...may catch the saw chain and be whipped toward you or pull you off balance 14 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...

Страница 5: ...steps to keep cutting jobs free from accident or injury 1 With a basic understanding of kickback you can reduce or eliminate the element of surprise Sudden surprise contributes to accidents 2 Keep a...

Страница 6: ...can set the starting mode as follows First stage position starting mode when the engine is warm Second stage position starting mode when the engine is cold Position Upper right of the air cleaner cov...

Страница 7: ...he front handle to check that the chain brake is not engaged 2 Loosen the nuts and remove the chain cover 3 Fix the hanger on the rear of power unit by screw 4 Mount the guide bar then fit the saw cha...

Страница 8: ...the bar rail 7 Tighten the nuts securely with the bar tip held up 11 8 14 7N m 120 150kg cm Then check the chain for smooth rotation and proper tension while moving it by hand if necessary readjust w...

Страница 9: ...er that the engine temperature may rise and an engine problem such as piston seizing may consequently occur 5 Unleaded gasoline is recommended to reduce the contamination of the air for the sake of yo...

Страница 10: ...sticking 4 Mixed fuels which have been left unused for a period of one month or more may clog the carburetor and result in the engine failing to operate properly 5 In the case of storing the product f...

Страница 11: ...hoke will close and that throttle lever will than be set in the starting position Note When restarting immediately after stopping the engine set the Choke knob in the first stage position choke open a...

Страница 12: ...hain oil is scattered off as shown in the figure The chain oil flow can be changed by inserting a screwdriver in the hole on bottom of the clutch side Adjust according to your work conditions Nota The...

Страница 13: ...eft hand guard down toward the front When the brake operates a yellow cone pops up from the base of the brake lever Releasing the Brake Pull the brake lever up toward the left hand handle until it cli...

Страница 14: ...engine at full throttle When the saw chain is caught in the cut Do not attempt to pull it out by force but use a wedge or a lever to open the way GUARD AGAINST KICKBACK This saw is equipped with a cha...

Страница 15: ...fell a tree be sure to warn neighboring workers of the danger Bucking and Lambing Always ensure your foothold Do not stand on the log Be alert to the rolling over of a cut log Especially when working...

Страница 16: ...ent side and finish by sawing from the opposite side Be alert to the springing back of a cut limb Pruning of Standing Tree Cut up from the bottom finish down from the top Do not use an unstable footho...

Страница 17: ...ely dirty Shake wash with gasoline Dry them completely before re installing 2 Oiling port Dismount the guide bar and check the oiling port for clogging 3 Guide bar When the guide bar is dismounted rem...

Страница 18: ...gasoline Replace with new one if clogged with dirt completely When returning the filter use a pinch not to be folded the suction pipe 3 Oil filter 1 With a wire hook take out the oil filter from the...

Страница 19: ...ing the trouble please keep clean around the muffler This engine is air cooled Dust clogging between the inlet port of the cooling air and cylinder fins will cause overheating of the engine periodical...

Страница 20: ...aking a test run re tighten the screw TOROUE 6 9 7 8 N m 70 80 kg cm Right after stopping the engine do not touch the muffler with one s bare hands It will cause to burn your hands If carbon clogs bet...

Страница 21: ...ter setting standards Be sure to wear safety gloves Before filing z Make sure the saw chain is held securely z Make sure the engine is stopped z Use a round file of proper size for the chain Chain typ...

Страница 22: ...e bar occasionally to prevent partial wear z The bar rail Should always be square Check for wear of the bar rail Apply a ruler to the bar and the outside of a cutter if a gap is observed between them...

Страница 23: ...ilure Make sure the icing prevention system is not working Case 2 Lack of power poor acceleration Rough idling Case 3 Oil does not come out If the unit seems to need further service please consult wit...

Страница 24: ...eding system Mechanical pump Dimensions L x W x H m m 265 x 220 x 220 Dry weight Power unit only kg 28 Cutting head Sprocket bar Guide bar Type Sprocket nose Size in mm 10 25 12 30 Saw chain Type oreg...

Страница 25: ...34 Yarraman Place Virginia QLD 4014 Ph 03 8726 1471 Email customerservice bosspowertools com au Web www bosspowertools com au...

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