Craftsman 172.439831 Operator's Manual page 16

TROUBLE SHOOTING
The following table gives checks and actions that you can perform if your machine does not
operate correctly. If these do not identify/remedy the problem, contact your service agent.
WARNING:
Switch off and remove plug from mains before investigating fault.
SYMPTOM POSSIBLE
Chain saw fails to operate
No power
Mains socket faulty
Extension cord damaged
Chain saw operates Extension cord damaged
intermittently Loose connection
Internal wiring defective
On/Off defective
Dry chain No oil in reservoir
Vent in oil filler cap clogged
Oil passage clogged
Chain /chain bar overheats No oil in reservoir
Vent in oil filler cap clogged
Oil passage clogged
Chain is over tensioned
Dull chain
Chain saw rips, vibrates, Chain tension too loose
does not saw properly Dull chain
Chain worn out
Chain teeth are facing in the
wrong direction
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PARTS LIST
CAUSE
Check power
Use another socket
Check cord, replace
Check cord, replace
Contact service agent
Contact service agent
Contact service agent
Refill oil
Clean cap
Clean oil passage outlet
Refill oil
Clean cap
Clean oil passage outlet
Adjust locking knob
Sharpen chain or replace
Adjust locking knob
Sharpen chain or replace
Replace chain
Reassemble with chain in
correct direction
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