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14

Chain saw lubrication test

Control the chain to operate towards 

one dry surface and accelerate the 

throttle to operate at half speed for 

about 30s.
Check whether a clear oil line can be 

seen on the dry surface.

Chain brake

Check of braking performance of brake

1. Place the chain saw on the ground.

2.  Control the handle with both hands

to accelerate the engine to high

speed.

3.  Trigger the front baffle by rotating

the left wrist holding the front baffle,

so as to enable the chain brake.

4. The chain is stopped immediately.

5. Loosen the throttle.

Release of chain brake

The chain brake is released when the 

front baffle completely returns to the 

operator side.
If the chain cannot be stopped 

immediately, send the chain saw to 

POWERKING 

for maintenance.

Warning  

  Danger

Most of risks are caused by bounce of the guide plate, 

while bounce is caused when the top of the guide plate 

is subject to collision against wood or similar objects.
The chain brake can be used to reduce or avoid physical 

injury caused by bounce of the guide plate.
Check the effectiveness of the chain brake before using 

the chain saw each time.

Non-artificial invention of chain brake

The tail end of the guide 

plate must be kept 35cm 

above the plane.

35cm

Hold the rear handle 

with the right hand.

Non-artificial invention of the chain brake means that the chain 

brake is stopped as a result of bounce of the tail end of the guide 

plate. In order to ensure the normal action of the chain brake 

free from artificial invention, take the following test steps.

1)

Stop the engine of the chain saw.

2)

Carefully control the front and rear handle by hand until

the tail end of the guide plate is 35cm high, as shown in

the above figure.

3)

Carefully rotate the left hand holding the front handle until

the front part or top of the guide plate hits the wood or

similar objects under the chain saw. In this case, the chain

saw is subject to impact (do not hold the rear handle too

tightly with the right hand).

4)

The impact will be transferred to the front baffle to

activate the chain brake.

Attention

To exercise the operation, press the front baffle 

forwards to activate the brake in the process of 

cutting small trees. If the chain brake is stuck in wood 

chippings, the functions of the chain brake will be 

weakened. Always keep the system clean.

Do not check the chain brake in the place with 

gasoline mist.

Chain braking 

direction

Direction of 

release of 

chain brake

Summary of Contents for PK4516

Page 1: ...4516 PK4520 PK451620 PK5718 PK5722 PK571822 Danger Warning Please carefully read the manual and follow the safety operations shown in it otherwise physical injury may be caused Professional gasoline c...

Page 2: ...Start up Operations 12 Operation 13 Stop Operations 13 Chain Brake 14 Cutting Guidance 15 Tree Cutting 15 Branch Cutting 16 Tree Sawing 16 Maintenance and Servicing 18 Carburetor 19 Air Filter 19 Fuel...

Page 3: ...ill be prolonged and the good operating state will be guaranteed Improper operation may cause physical injury Correctly understand all the safety precautions before use The machine is used for cutting...

Page 4: ...e of gasoline and oil Filling saw chain lubricating oil oil pump Flow adjustment of saw chain lubricating oil Carburetor adjustment low speed mixing Carburetor adjustment high speed mixing Carburetor...

Page 5: ...wear the helmet type protective device or earmuffs approved by the safety organization to protect your hearing Any person that operates the chain saw frequently must receive hearing examination on a...

Page 6: ...andle must be dry without any gasoline oil or mixture thereof Operate the machine in a well ventilated area as the exhaust gas oil mist produced in lubrication of the chain saw and sawdust are harmful...

Page 7: ...fingers will be significantly affected after long term exposure to cold air or vibration Therefore the anti vibration design of the chain saw can help to reduce the intensity of vibration transmitted...

Page 8: ...ous to cut on the ladder The ladder is easy to slip thus limiting the control of the chain saw Cutting in high places must be done by professional operators Stop the engine before lowering the chain s...

Page 9: ...rly and contacts with the body of the operator The speed of bounce is too high and prompt braking cannot be realized even by the well maintained brake 2 The hands of the operator are not placed in the...

Page 10: ...4516 PK4520 PK451620 PK5718 PK5722 PK571822 Danger Warning Please carefully read the manual and follow the safety operations shown in it otherwise physical injury may be caused Professional gasoline c...

Page 11: ...uide plate of the chain 9 Guide plate used for supporting and guiding the saw chain 10 Chain used as a cutting tool 11 Fuel tank cover used to seal the fuel container Tighten it by means of clockwise...

Page 12: ...ng the guide plate If the chain is too tight loosen the regulator 8 Make the engine operate at low speed Then stop the engine If the chain tension is not appropriate readjust the chain Warning Danger...

Page 13: ...nd on the ground and the chain will not contact with any object or the ground Hold the front handle with the left hand Press the chain saw on the ground with the thumb under the handle Put the right f...

Page 14: ...e chain will rotate After the engine is started release the throttle and keep the engine operating at idle speed The chain will rotate when the engine speed is approximately 4 300rpm Check whether the...

Page 15: ...ime Non artificial invention of chain brake The tail end of the guide plate must be kept 35cm above the plane 35cm Hold the rear handle with the right hand Non artificial invention of the chain brake...

Page 16: ...ting Fallen trees may cause serious damage to any object such as cars houses fences power lines or other trees You can control the falling direction of trees However you must determine the location of...

Page 17: ...to increase external support and supporting branches should be left and cut at the end Do not cut branches higher than the chest or keep the guide plate vertical in the cutting process Otherwise buffe...

Page 18: ...extruded and cannot be moved in the timber seam If the engine is rotating but the chain is stuck the clutch of the chain saw will be burnt If the chain is stuck and the chain saw cannot be taken out o...

Page 19: ...e it 19 Carburetor Adjust replace it 18 Cylinder cooling fin Check clean it 19 Muffler Check fasten clean it Oil filter Check clean replace it 18 Clutch shell Check replace it 19 Chain brake Check rep...

Page 20: ...the air filter locking nut Fuel supply system Check whether fuel leaks out of the fuel pipe sealing plug and fuel tank after fuel filling and before use Fire may be caused in case of fuel leakage Imm...

Page 21: ...elivery of the saw chain is about 7ml min when the engine speed is 7 000rpm Rotate the adjusting screw counterclockwise to increase the oil amount The oil amount is the largest 13ml min when the engin...

Page 22: ...eposited Clean or replace it Fuel silting occurs Clean or replace it The spark plug is damaged Replace the spark plug The engine cannot be started A fault occurs in the engine Consult the product dist...

Page 23: ...gine before grinding the chain Wear the conforming labor protection gloves Grinding precautions 2 3 30 degree 90 degree 4 1 Fix the chain and push the hand guard forwards Push the hand guard in the op...

Page 24: ...n The angle parameters are suitable for Oregon 91VS 91VG and Carlton N1C BL chains For the angles of other kinds of chains refer to the instructions of the manufacturer Cleaning of guide plate slot Dr...

Page 25: ...several times to discharge fuel in the carburetor 7 Always keep fuel in the container with safety certificate 8 Remove the spark plug Fill fresh and clean two stroke engine lubricating oil of about ha...

Page 26: ......

Page 27: ...Only authorized service centers have parts and can perform repairs as to not void your warranty This warranty does not cover cosmetic defects such as paint decals or wear items This warranty does not...

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