13
2.
Loosen the adjusting screw behind the pedal. Hold the nuts on top of the valve with a
3/8 open-end wrench and remove the screw with a 5/16 wrench or socket. The valve
can now be lifted off the link, and the valve cartridge removed for service or
replacement. On machines shipped after October, 1985, a standard screwdriver is
used to remove the valve mounting screws.
3.
Assembly is the opposite of removal. Use the adjusting screw to make the pedal even
and parallel to the ground. Lock the adjusting screw in place with “Loctite 292”.
VALVE SERVICING
TOOLS REQUIRED:1/2 inch wrench or socket, rag, DOW CORNING 111.
1.
Remove the brass valve cartridge from the aluminum housing. Make sure that the O-
ring indicated does not remain in the housing. If it does, use the spring to remove it.
2.
Push the spool out of the lining. Wipe all parts clean with a soft dry, lint-free cloth.
Do not use alcohol or petroleum-based cleaning solution. Check all parts for cracks
or excessive wear. Replace entire unit if worn or damaged.
3.
Wipe a thin film of DOW CORNING 111 compound on the valve and bore.
Reassemble the valve cartridge.
4.
Reinstall the valve cartridge.
NOTICE:
DO NOT OVER TIGHTEN.
Summary of Contents for Keiser 300
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