remove holding valve and check
packings. They have probably been
Setscrew (3) when installed should
damaged by a sharp edge of a port.
be flush with threaded ring (17).
d. Clean drilled hole of chips and debris.
The holding valve should turn by
e. Apply Loctite #271 to setscrew (3) and install
hand until compression of the
11. INSTALL HOLDING VALVE (19).
d. Carefully install holding valve (19) into port block.
a. Check inside of port block for any sharp edges
or burrs and remove as necessary with emery
Do not use air pressure to cycle or
b. Install new external packings onto holding valve.
12. PRESSURIZE AND CYCLE CYLINDER. CHECK
c. Lubricate holding valve and the packings with
FOR PROPER OPERATION AND ANY LEAKAGE.
clean hydraulic oil.
13. INSTALL TELESCOPE CYLINDER. (REFER TO
Do not damage packings during
END OF TASK
installation of holding valve. If
holding valve turns freely then gets
hard to turn, then easy to turn;