78 MS 231, MS 231 C, MS 251, MS 251 C
11. Chain Lubrication
11.1 Pickup Body
Impurities gradually clog the fine
pores of the filter with minute
particles of dirt. This prevents the oil
pump from supplying sufficient oil.
In the event of problems with the oil
supply system, first check the oil
tank and the pickup body.
– Troubleshooting, b 3.3
– Open the oil tank cap and drain
the oil tank.
– Collect the oil in a clean
container, b 1
– Clean the oil tank if necessary,
b 1
: Use hook (2) 5910 893 8800 to
remove the pickup body (1) from
the oil tank.
Do not overstretch the suction hose.
– Pull off the pickup body (1),
check it and replace if necessary.
– Reassemble in the reverse
sequence.
219RA457 TG
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2
11.2 Oil Suction Hose
– Open the oil tank cap and drain
the oil tank b 1.
– Remove the clutch, b 4
– Remove the brake band, b 5.2
– Remove the oil pump, b 11.3
: Remove the oil suction hose (1)
together with the pickup body.
– Check the oil suction hose and
pickup body and replace if
necessary.
– Fit the pickup body, b 11.1
Installing
– Push the oil suction hose (1),
pickup body first, through the
housing bore (arrow).
2310RA299 TG
1
2310RA300 TG
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: Line up the oil suction hose (1)
– the straight side of the
tab (arrow) must locate against
the housing.
– Push home the oil suction
hose (1) until its groove is
properly seated in the engine
housing.
– Check position of the pickup body
and, if necessary, use the hook
5910 893 8800 to re-position it.
– Install the oil pump, b 11.3
– Reassemble all other parts in the
reverse sequence.
11.3 Oil Pump
– Troubleshooting, b 3.3
– Remove the clutch, b 4
– Remove the brake band, b 5.2
: Remove the shim (1).
TOP
2310RA301 TG
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General
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