Stihl MS 650

68 MS 650, MS 660
Impurities gradually clog the fine
pores of the filter with minute
particles of dirt. This prevents the oil
pump from supplying sufficient oil to
the bar and chain. In the event of
problems with the oil supply system,
first check the oil tank and the
pickup body. Clean the oil tank if
necessary.
– Troubleshooting chart – b 4.3
Pickup body
: Unscrew the oil tank cap (1) and
drain the oil tank.
Collect chain oil in a clean container
or dispose of it properly at an
approved disposal site.
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: Use hook (1) 5910 893 8800 to
pull the pickup body out of the oil
tank.
Do not stretch the oil hose too much
during this operation.
– Pull the pickup body out of the
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suction hose.
– Fit a new pickup body.
– Flush out the oil tank.
Note:
Take care no to damage the fuel
hose. Do not use pointed tools.
Reassemble in the reverse
sequence.
Suction Hose
– Remove the clutch – b 5.4
– Remove the oil pump – b 11.3.1
: Grip the tab (arrow) of the suction
hose with pliers and pull the
grommet out of the bore.
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: Pull the suction hose with pickup
body out of the crankcase.
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: Pull the pickup body (1) off the
suction hose (2).
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11. Chain Lubrication
11.1 Pickup Body /
Suction Hose