2-39. BOOSTER PUMP. This task covers:
Tools, see TM 104610-232-12, Appx B,
Sec Ill, Ref Code (No.)
Booster pump and motor removed from ROWPU
Tool Kit, General Mechanics Automotive (1)
(para. 4-43, TM 10-4610 -232-1 2).
Glycerin (Appx B, Sec II, Item 16)
Lubrication oil (Appx B, Sec II, Item 51)
Seals (TM 10-4610-232-24P)
Gaskets (TM 10-4610-232-24P)
Preformed Packing (TM 10-4610-232-24P)
When the pump is disassembled, inspect preformed packing, gaskets and seals and replace all worn or faulty parts.
The booster pump can not be removed from the booster pump motor as an intact
assembly. The pump must be disassembled from the motor and reinstalled in the
same way. See the topic REPAIR.
a. Remove eight capscrews (1, Figure 2-46) and remove casing (2). Remove gasket (3).
b. Inspect wear ring (4). The ring is a press fit in casing. If necessary, remove by cutting through two sides, releasing
the pressure of the press fit. This maybe accomplished by drilling a hole as shown on Figure 2-46, then cracking the
remaining ring wall. Use drill size A,
It may be necessary to use two pinch bars between impeller and cover to remove
c. Remove impeller screw (5), gasket (6), and impeller (7). Remove key (8).
d. If necessary, lubricate motor shaft with lubricating oil and slide shaft sleeve(9) off motor shaft. Preformed packing
(1 O) will come off on shaft sleeve (9). Seal(11 ) will also come off with shaft sleeve (9). It maybe necessary to cut or soak
the seal off the sleeve.
e. Remove cover (1 2). Press seal (13) out of cover (1 2).
f. Remove slinger ( 14)
g. Remove four socket head screws(15) and remove adapter (1 6),
h. Remove splash plate (1 7).