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TM 10-4930-245-13&P
c.
Assembly - continued.
(28)
Using a soft jaw chuck or vise, assemble actuating cam (4) on the handle side plate (12) with screws
(13) torque to 50 in-lb. Repeat for remaining side plate (12).
NOTE
The actuating cam must be behind the diaphragm retainer inside the housing.
(29)
Place nozzle assembly into soft faced vise and position one washer (10) on housing (17) and insert the
left side actuating cam (4) into the curved slot on housing (17) with the handle side plate (12) in the
OPEN (up) position.
(30)
Insert bushing (11) into handle side plate (12); place second washer (10) on outside of handle side
plate and secure to housing (17) with screw (9).. Tighten screw (9) to 135 50 in-lb torque.
(31)
Insert spring (16) and valve latch actuator (5) into housing (17) latch cavity (right side). Attach the right
side handle side plate and parts as described in steps 30 and 31 while holding the valve latch actuator
(5).
(32)
Mount the handle (8) between the two handle side plates (12) and secure with four screws (7). Tighten
four screws (7) to 50 5 in-lbs torque.
(33)
Install valve actuating ring (18) into housing (17) by screwing it onto the diaphragm assembly (21) until
.105 .135 inch of diaphragm assembly (21) shows past the valve actuating ring (18). Use dial caliper
to verify the .105 .135 inch requirement. Holes in valve actuating ring should be in the
OPEN/CLOSED position.
(34)
Install regulator spring (6) and spring retainer (5) into housing (17) over flow indicator.
NOTE
Lockpin can be either toward the top or bottom of housing.
(35)
Carefully install lock pin (4) on end plate (2) using a soft jaw chuck or vise with screw (3).
(36)
Position end plate (2) on housing (17). Ensure lockpin (4) is in valve actuating ring (18) and the spring
retainer (5) is positioned in the center hold.
WARNING
End cover is under spring pressure. Keep pressure on end cover while installing
screws.
(37)
Secure endplate (2) to housing (17) with four screws (1).
(38)
Place handle (8) in the CLOSED position and pull collar (28) to remove piston compression tool.
5-16
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