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

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271721-4 and the loose keys 206693-5. Restrain lever
271721-6 and cam 271721-5; then tap the end of
operating shaft 271721-1 until arm and cam become
free.
Remove screws 1968.25-6 and lock washers 196733-1.
Shaft bracket 271722-1 can then be slipped off dowels
196700-8.
Further dismantling of this unit is evident from the
drawings.
56. Disassemb ly of the B-end, (dr . 271678). - Due to
the limited space it is necessary to move the entire unit to
a portion of the proj ectile flat with available working space.
In preparation for moving proceed as follows:-
Drain the entire system by removing the drain plugs
in the A and B-ends. Remove the external piping.
Disconnect the couplings on the output and the worm
wheel shafts, and remove the mounting bolts.
57. Dismant ling the B-end. - 1-Jhencompletely dismantling
the B-end a minimum of time will be required and trouble will
be eliminated if the unit is dismantled according to the following
instructions:
Remove screws 206446-3 and cover 271697-3. Remove
bearing housing 271696-1 and worm wheel 271697-1 as
an assembly.
Remove screws 206446-3 in control shaft bearing
271697-8. Then remove bearing complete with shaft
271694-2) oil seal 271730-4, spacer 271693-3, and
lever 271692-7.
Remove pilot bearing 271692-8. Shaft 271695-4 may
be left assembled in place until yoke 271694-4 is
removed from housing.
Remove screws 180226-6 and retainer 271691-2 with
oil seal 271730- 3. Remove bearing lock nut 271731-10
and lock washer 271731-11.
Remove screws 220678-3 in cylinder 271693-1. This
cylinder with retainer 271691-1, screws 200075-6,
bearing 271731-6, spacer 271688-4, piston 271694-1,
spring 271694-3, bushing 271692-6 and end plate
271695-7 with screws can be removed from the housing
as an assembly. When these parts are removed the
yoke 271694-4 and retainer spacer 271693-6 become
free.