LEFT DISCHARGE VALVE, TUBES, AND RELATED PARTS REPLACEMENT (FIXED FIRE EXTINGUISHER)

TM 5-5420-202-20-4

LEFT DISCHARGE VALVE, TUBES, AND RELATED PARTS REPLACEMENT

(FIXED FIRE EXTINGUISHER) (Sheet 4 of 5)

Using pipe wrench, install elbow (E) into check valve (A).

If line assembly contains adapter (F), go on to step 7. If not, go to step 9.

Using 15/1 6 inch wrench on adapter (F) and 1 inch wrench on tube (G), install adapter

(F) into tube (G). Using 1 inch wrench to hold tube (G), use 15/16 inch socket, ratchet,

and torque wrench to tighten adapter (F) to 40-50 lb-f t (54-75 Nm).

Using 15/16 inch wrench on adapter (F) and 1 inch wrench on tube (H), install tube (H)

loosely onto adapter (F). Tube (H) must remain loose for positioning during installation;

then go to step 11.

Using 7/8 inch wrench, install tube (G) onto elbow (E). Using 7/8 inch crowfoot and

torque wrench, tighten tube (G) to 40-50 lb-ft (54-75 Nm).

Using two 7/8 inch wrenches, install tube (H) loosely onto tube (G). Tube (H) must remain

10.

loose for positioning during installation.

Using hands, posit ion three clamps (J) on tube (D).

11.

TA248737

Go on to Sheet 5