TM-5-5420-202-20-4

M60A1 CHASSIS, TRANSPORTING; FOR BRIDGE, ARMORED-VEHICLE-LAUNCHED; SCISSORING TYPE, CLASS 60

TECHNICAL MANUAL; ORGANIZATIONAL MAINTENANCE MANUAL; VOLUME 4 OF 4

OCTOBER 1985

TM-5-5420-202-20-4 - Page 236 of 534

TM 5-5420-202-20-4

LEFT DISCHARGE VALVE, TUBES. AND RELATED PARTS REPLACEMENT

(FIXED FIRE EXTINGUISHER) (Sheet 3 of 5)

INSPECTION:

Make sure all connections

that could cause leakage.

and seating surfaces are free

Replace any damaged part.

NOTE

of nicks, burrs, or other defects

Apply zinc chromate primer to all threads prior to installa-

tion of threaded tube/hose connectors:

ASSEMBLY:

1.

2.

3.

4.

Secure check valve (A) in vise.

Using 15/16 inch wrench, install bushing (B) into free flow end of check valve (A). Using

15/16 inch socket, ratchet, and torque wrench, tighten bushing (B) to 40-50 lb-ft (54-

75 N•m).

Using 3/4 inch wrench, install adapter (C) into bushing (B). Using 3/4 inch socket, ratchet,

and torque wrench, tighten adapter (C) to 40-50 lb-ft (54-75 N•m).

Using 7/8 inch wrench, install tube (D) loosely onto adapter (C). Tube (D) must remain

loose for positioning during installation.

Go on to Sheet 4

20-78

TA248736