Stihl MS 460 - Important Adjustments; Catalytic Converter Safety

10 MS 460, MS 460 C
4.3 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 tank empty Fill up with oil
O-ring on oil line in crankcase seat
faulty or oil line damaged
Remove oil pump, fit new O-ring
and refit oil pump or install a new oil
pump
Oil inlet hole in guide bar is
blocked
Clean oil inlet hole
Intake hose or pickup body
(strainer) clogged or intake hose
ruptured
Clean suction hose and pickup
body (strainer) with a little standard
solvent-based degreasant
(containing no chlorinated or
halogenated hydrocarbons) or
replace if necessary
Valve in oil tank blocked Clean/replace valve
Teeth on pump piston and/or worm
worn
Install new oil pump and/or new
worm
Machine losing chain oil O-ring on oil line in crankcase seat
faulty or oil line damaged
Remove oil pump, fit new O-ring
and refit oil pump or install a new oil
pump
Bore in pump housing worn Fit new oil pump
Oil pump delivers insufficient oil Control screw and/or control edge
on pump piston worn
Replace control screw and/or oil
pump
Bore in pump housing worn Fit new oil pump