TM 9-2320-361-20
12-38. GATE VALVE REPLACEMENT
This task covers:
a. Removal
b. Installation
INITIAL SETUP:
APPLICABLE MODELS
EQUIPMENT CONDITION
M49A2C, M50A2, M50A3
MATERIALS/PARTS
Eight locknuts
Two gaskets
REFERENCES (TM)
TM 9-2320-361-10
TM 9-2320-361-20P
Parking brake set (TM 9-2320-361-10).
GENERAL SAFETY INSTRUCTIONS
Keep fire extinguisher nearby when working on fuel
tank trucks.
WARNIN G
Do not perform this procedure while smoking or within 50 feet of
sparks or open flame. Fuel is flammable and can explode easily,
causing injury or death to personnel and damage to equipment.
NOTE
Have drainage container ready to catch fuel.
Both gate valves are removed the same way.
1. Remove four locknuts (9), screws (7), cover (6), and gasket (8) from gate valve (1). Discard
locknuts (9) and gasket (8). Remove gasket remains from mating surfaces.
2. Remove four locknuts (2), screws (5), valve (1), and gasket (4) from manifold flange (3). Discard
locknuts (2) and gasket (4). Remove gasket remains from mating surfaces.
1. Install new gasket (4) and valve (1) on manifold flange (3) with four screws (5) and new locknuts (2).
2. Install new gasket (8) and cover (6) on valve (1) with four screws (7) and new locknuts (9).
12-58