CENTRIFUGAL PUMP REPAIR (TRUCKS M49A1C, M49A2C, M50A1, M50A2, AND M50A3) - continued

TM 9-2320-209-34-2-2

FRAME 3

Find punch marks made at time of diassembly. Put liner (1) in casing (2).

Be sure pin hole in liner is at top of pump.

CAUTION

Replacement rotors are bronze with stainless steel

shaft. This makes the pump assembly suitable for

either fuel or water tank bodies. If rotor is not

replaced, look to see if rotor is bronze or cast iron.

If rotor is cast iron, put a tag on reading "fuel

tank truck only". Cast iron and water makes rust

and can damage pump.

Place casing (2) on a bench with outboard head (3) down. Place a pushrod

pin (4) in each of the two holes through the rotor (5). Put rotor in pump

liner (1).

Place casing (2) on bypass valve (6) side, while holding rotor shaft (5)

against outboard head (3).

Turn rotor (5) by hand. As slot (7) reaches top, put in vanes (8). Be

sure beveled edge is against liner (1) and pressure grooves on right side

of vane.

GO TO FRAME 4

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