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

256
without dis~urbing any of the hoist casLlngs. This operation
is prescribed for disassembly of the piston group. The reassembled
cylinder can be installed in the ~everse procedure.
(a) Disconnect the pipe flange (216383-2) from the
upper cy.l i.nder- head (216381-1~ center and left
hoists; 216381-2, right hoist) and lower cylinder
head (216382-1).
(b) Remove set screw (12-2-4-112) from piston rod
(216380-2) and drive piston pin (216384-2) from
crosshead (230700-1, center hoist; 230701-1,
right hand or left hand hoists).
(C) Disassemble the four bolts that secure upper
cylinder head (216381-1, center and left hoists;
216381-2, right hoist) to the intermediate
r~ck casings (230711-1 and 230719-1, center
hoist; 217294-1 or2 and 217295-1 or 2, right
hand'and left hand hoists) and remove the two'
keys (216384-4) from same.
(d) Lower the hydraulic cylinder approximately 30.0
inches so that the' upper cylinder head 1rTill
clear the upper proj ectile handling platform
(230702-1, center hoist; 230723-1 or 2, right
hand or left hand hoist).
( e) Tilt the hydraulic cylinder to the side (for
center hoist) and to the rear (for right hand
and left hand hoists) and remove.