4–9
VENT ASSEMBLY (Continued)
b.
Reassemble
(1) Lubricate O–Ring with MIL–C–10382 lubricant only. Place
new O–Ring into groove in tank fitting.
(2) Place flange adapter on tank fitting. Rotate until holes
in flange are in line with tapped holes in fitting.
Place washers over bolts. Place bolts through holes in
flange.
Hand tighten bolts. See appendix F for torque
sequence and values.
(3) Place relief valve on vent standpipe until standpipe
contacts O–Ring gasket. Turn relief valve clockwise un-
til tight.
NOTE: STOP HERE FOR MODEL 53029B –20
(4) Insert vent standpipe into coupling and turn standpipe
clockwise until tight.
(5) Insert coupling gasket into female coupling. Check that
cam lever arms of coupling are in an outward position.
Place female coupling onto flange adapter. Pull cam arms
inward until they lock.
4–10
FILLER/DISCHARGE ASSEMBLY See figure 4–3
a.
Disassemble
(1) Pull outward on cam arms. Remove elbow from flanged
adapter.
(2) Remove elbow gasket from inside of elbow.
(3) Using wrench, remove hexagon–head bolts and washers. Re–
move closure plate from tank fitting.
(4) Remove O-Ring from groove in tank fitting.
(5) Using wrench, remove hexagon–head bolts and washers from
remaining assembly. Remove flange adapter and gasket
from top of closure plate. Remove suction stub from gas–
ket from bottom of closure plate.
4–14
Change 1
