Chain Lubrication; Pickup Body; Suction Hose - Stihl MS 290 Manual

2
: Press the interlock lever (1)
downward.
: Push the throttle trigger upward
and move the switch shaft (2) to
the "Choke" position.
: Fit the handle molding, making
sure it engages behind the lugs
as shown.
– Insert the screw and tighten it
down firmly, b 3.5
– Fit the carburetor box cover,
b 11.1
60
10.

Chain Lubrication

10.1 Pickup Body/Suction
Hose
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.
1
– Troubleshooting – b 4.3
– Unscrew the oil tank cap and
drain the oil tank.
Collect chain oil in a clean
container. If necessary, dispose of it
properly at an approved disposal
site.
– Observe safety precautions,
b 2.
– Remove the front handle, b 9.1
– Remove the clutch, b 5.5
: Ease the suction hose (1) off the
oil pump.
1
: Pull the suction hose (1)
downwards and out of the engine
housing.
: Carefully pry the suction hose
with pickup body out of the
engine housing.
Take care not to damage the suction
hose.
1
1
: Pull the pickup body (1) out of the

suction hose (2).

– Replace the pickup body if it is
damaged or very dirty.
MS 290, MS 310, MS 390
2