Section VIII. HOSE GROUP

TM 3-1040-214-12

(1) Align the key on the cover plate with the

and install (fingertight) the attaching screws.

notch in the valve body. Install the cover and attaching

(3) Operate the trigger safety and trigger to

screws.

see that trigger safety engages in the safety catch.

(2) Install the safety catch on the valve body

Adjust safety catch and tighten screws.

Section VIII. HOSE GROUP

4-26. Hose Assembly

4-27. Quick-Disconnect Coupling Half and

Preformed Packing

Organizational maintenance personnel are authorized to

paint the hose assembly and replace the hose assembly.

a. Quick-Disconnect Coupling Half. Organizational

maintenance personnel are authorized to replace the

a. Inspection.

quick-disconnect coupling half.

(1) Check the rubber hose (Fig.

1-3) for

(1) Removal.

damage and deterioration.

(a) Rotate the ball depressing ring

(2) Check the coupling on both ends of the

(step C, Fig. 2-2) on the quick-disconnect coupling half

hose for damage. Check especially the threads on the

until the slot in the ring is in line with the lock pin.

coupling.

(b) Pull the depressing ring back and

remove the hose assembly from the agent delivery

b. Painting.

coupling.

(1) Check the painting on the hose assembly

(c) Remove

the

quick-disconnect

(Fig. 4-8).

coupling half from the hose assembly coupling

(2) Repaint the hose if required.

(Fig. 4-8).

(2) Installation.

c. Removal.

(a) Apply anti-seize compound on the

(1) Rotate

the

ball

depressing

ring

hose assembly coupling threads.

(step C, Fig. 2-2) on the quick-disconnect coupling half

(b) Connect and tighten the quick-

until the slot in the ring is in line with the lock pin.

disconnect coupling half threads to the hose assembly

(2) Pull the depressing ring back and remove

coupling. Do not overtighten.

the hose assembly from the agent delivery coupling.

b. Preformed Packing. Organizational maintenance

(3) Using a wrench, disconnect the hose

personnel are authorized to replace the preformed packing

assembly coupling (Fig. 1-3) from the M9 gun.

in the quick-disconnect coupling half.

d. Installation.

(1) Removal.

(1) Apply anti-seize compound on the hose

(a) Remove the preformed packing

assembly coupling threads (Fig. 1-3).

(fig. 4-8) located on the inside of the quick-disconnect

(2) Slide the hose assembly coupling over the

coupling half.

connector.

(b) Clean the quick-disconnect inner

surface of any rubber particles.

(3) Tighten the coupling to the M9 gun valve

(2) Installation.

section. Do not overtighten.

(4) Rotate the ball depressing ring on the

NOTE

quick-disconnect coupling half until the slot in the ring is

The open end of the preformed

in line with the lock pin.

packing must face the threads in the

(5) Depress the ball depressing ring and

quick-disconnect fitting (Fig. 4-8).

connect the quick-disconnect coupling half to the agent

tank coupling.

Slide the gasket into the quick-disconnect coupling half

(6) Rotate the ball depressing ring until the

and seat it properly.

slot in the ring is not in line with the lock pin.

4-20