RECOIL MECHANISM


REPLENISHER-Piston sticks; oil leaks at
connections; reserve too low; too high; plug
missing; plug chain broken; breather holes
dirty, clogged, painted over.
 (When you're firing, make sure the air check
valve in the counterrecoil front head is working
right and allowing the air trapped in the cylinder
to escape. If the valve's not working, get the word
to support pronto.)


VARIABLE RECOIL MECHANISM-Control rod
rusty, painted, needs light lube (recomi -
mended PL when being used and GAA for
storagel, mounting bolts, rivers, cotter pins
missing, loose, worn


RESPIRATOR-Breather holes (I
over. plugged. 1
IL-


BREATHER
 HOLES


I4 painted




 4m


TRUNNION-Load elevation indey missing;
nuts and bolts loose \


CANNON BEARING RAILS-Wipers missing,
worn; strips, rails and cradle guides burred,
dirty, rusty..


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SPADE CONTROL VALVE AND HANDLE-
Valve won't work; handle broken, MWO 9-
2300-216-30/3 (2 Apr 64) not applied; return
spring weak, busted.
 (When you're raising or lowering the spade, the
engine should be running and the auxiliary pump
should be turned on. Don't rely on the 5-HP electric
motor alone to produce hydraulic power--or
you II drain your storage batteries. Never use the
spade like a jack. If you fire while the spade has
the end of the vehicle completely off the ground,
you'll hurt the rack and spade. This could damage
other parts, like the spade lifting cylinder seals.
Always try to get the best spot- on level ground
up against an embankment.)


J-Ai


SMWO
 APPLIED'


l


RECOIL SPADES-Mounting brackets broken; bolts busted, missing; cylinders
rods damaged, nicked, burred, rusty; spade cylinder stops broken (these st
important for alining the lock); flexible lines damaged, frayed, leak.


leak; piston '
ops are very




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