10 MS 201, MS 201 C, MS 201 T, MS 201 TC
3.3 Chain Lubrication
In the event of trouble with the
chain lubrication system, check and
rectify other sources of faults
before disassembling the oil pump.
.
Condition Cause Remedy
Chain receives no oil Oil inlet hole in guide bar is blocked Clean oil inlet hole
Intake hose or pickup body clogged
or intake hose ruptured
Fit new intake hose and pickup
body
Connector blocked Clean the connector or replace if
necessary.
Valve in oil tank blocked Clean or replace valve
Worm flanks or driver worn Install new worm
Oil pump damaged or worn Install new oil pump
Machine losing chain oil Oil pump damaged or worn Install new oil pump
Oil suction hose connection
damaged
Install new oil suction hose
Crankcase cracked Install new crankcase
Oil pump delivers insufficient oil Oil pump damaged or worn Install new oil pump
Worm driver is loose Install new worm
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