(18)
(19)
(20)
(21)
(22)
TM 9-2320-279-34-3
M978 Tanker Maintenance Procedure Instructions (Cont)
Remove four cylinder
locknuts (35), cylinder end
cap (36), cylinder
assembly (37), and two
preformed packings (38)
from flow valve body (23).
Remove four cylinder cap
rods (39).
Remove two guide
bars (40), cam lever (41),
and two guide pins (42)
from cylinder
assembly (37).
Remove spring assembly (43) from
cylinder (37).
Remove piston (44) and preformed
packing (45).
WARNING
Spring is under very extreme tension. Use extreme care
when releasing spring to avoid personal injury.
NOTE
Record length of spring before loosening screw. Screw
must be loosened before spring assembly is placed in
compression tool.
(23)
(24)
(25)
(26)
(27)
(28)
Hold spring assembly (43) in suitable holding device
and loosen screw (46).
Position spring assembly (43) in
compression tool.
Tighten plate (47) against spring
assembly (43).
Remove screw (46).
Alternately unscrew four nuts (48) and
compression tool a few threads at a time
to slowly release tension from spring
assembly (43).
Remove spring assembly (43) from
compression tool.
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