McCulloch 250 - CHAIN OILER SCREEN; CHAIN OILER DISCHARGE VALVE

CHAIN OILER SCREEN
Chain oil is screened before passing from the chain oiler tank
to the discharge valve. The Screen should be cleaned peri-
odically to prevent build-up of dirt and blocking passage to the
valve. Remove the chain oiler tank cover to gain access to
the screen. (See figure 14).
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CHAIN OILER DISCHARGE VALVE
CHAIN OILER
SCREEN
The chain oiler discharge valve is located in the upper section of
the bar mounting pad (figure 15). Should it become plugged by dirt
entering the chain oiler tank during filling of the tank, the valve
must be removed and cleaned.
18
ID
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Never operate your chain saw if the chain oiler
does not work because you can ruin your chain very
quickly.
1. Remove the bar mounting nuts and the clutch guard (figure 1) .
2. Remove the screw, lockwasher, retainer, spring and ball that
make up the chain oiler discharge valve (figure 16) from the bar
mounting pad.
3. Clean the small oil discharge hole in the retainer. Clean the
spring and ball of any dirt. Do not stretch or deform the spring
in any way.
4.
Push the chain oiler button several times. If oil does not come
out of the oiler valve hole, the internal pump is damaged and will
have to be repaired by your McCulloch Dealer.