Operation Manual

11MS 241 C
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.
.
Problem Cause Remedy
Chain receives no oil Oil inlet hole in guide bar is blocked Clean oil inlet hole
Intake hose or pick-up body
clogged or intake hose ruptured
Fit new intake hose and pick-up
body
Valve in oil tank blocked Clean or replace valve
Worm worn Replace worm
Oil pump damaged or worn Install new oil pump
Machine looses chain oil Oil pump damaged or worn Install new oil pump
Oil intake hose connection
damaged
Fit new oil intake hose
Crankcase cracked Check crankcase halves and
replace damaged crankcase halves
Oil pump delivers insufficient oil Oil pump damaged or worn Install new oil pump
Worm carrier is loose Replace worm