Chain Lubrication - Stihl MS 210 Service Manual

4.3

Chain Lubrication

Important!
In the event of trouble with the chain
lubrication system, always
investigate the other possible
sources of faults before
disassembling the oil pump.
Condition
Chain receives no oil
Machine losing chain oil
Oil pump delivers too little oil
10
Cause
Oil tank empty
Oil inlet hole in guide bar is
blocked
Intake hose or pickup body
(strainer) clogged or intake hose
ruptured
Valve in oil tank blocked
Oil pump damaged or worn
Oil seal leaking
Bore in pump housing worn
Oil pump worn
Remedy
Fill up with oil
Clean oil inlet hole
Wash intake hose and pickup body
(strainer) in fresh STIHL cleaner or
replace if necessary
Clean or replace valve
Install new oil pump
Replace oil seal
Install new oil pump
Install new oil pump
MS 210, MS 230, MS 250