OP-755 Part 2 Pages 197-401 - Personal Page of GENE SLOVER

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inspection purposes. The oil is to be drained from the A-end
tank and the inspection covers 274298-2 are to be removed.
Reach in through the opening and remove the screws 196825-6
from the cover 274284-6. The cover and the valve 274284-7 can
be removed for inspection. Make sure that the valve is free
from bind when reassembled by checking the valve movement
through the opening in the lower end of the valve body.
132. The B-end (dr . no. 274249) is built up of several
subassemblies, some of which maybe removed without completely
dismantling the B-end. The removal and dismantling of these
subassemblies will be described separately.
133. To remove the c am support assemb lye - Remove the
large portable plate at the earn end of the powder hoist compartment.
Next drain the oil from the camhousing. Remove the
inspection cover 274320-2, which will expose the cams. Remove
the lock washer 200074-8 and the lock nut 271731-3 from the
end of the drive shaft 274313-1. Mark the cam support 274322-1
and the gear 274328-9 to insure the reassembly of the parts
in the same location. Slip the cam assembly off the end of
the drive shaft.
134. To dismantle the c am support assembly. - The hoisting
cams are removed by loosening the screws 180226-6, the
heads of which project slightly above the surface of the clamp
ring 274323-4. The lowering cams are dismantled by removing
the screws 220718-2 from the clamp ring ~74323-2. Remove the
screw 180226-6 from the face of the gear 274327-5 and the gear
can be forced off the dowel pins 206485-14. .
135. To reassemble the c am support assembly. -All parts
are to be thoroughly washed in a non-acid cleaning fluid and
are to be assembled in the reverse of the dismantling procedure.
The cams are to be adjusted as explainerl in paragraph 80.
136. To remove the rocker arm assemb ly. - Loosen the lock
nut 271665-3 and the lock washer 196733-14. Use bearing lock
nut wrench 220720-2, which may be found in the spare parts
box #1. Tap on the end of the shaft 274327-3, and the rocker
arm assembly can be forced off the shaft.
137. To dismantle the rocker arm assembly. - First remove
the two screws 220718-2 and the two screws 180226-7 which
project out of the rocker arm, and the hoisting arm 274329-2
can be removed from the hub 274329-1. Next loosen the remaining
two screws 180226-7 and the lowering rocker arm 274328-1
can be dismantled from the hub 274329-1.
138. To reassemble the rocker arm assembly. - The parts
are to be thoroughly cleaned, and are to be reassembled in