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 TM 55-1905-242-14
0155 00
DISASSEMBLY--PUMP AND MACERATOR ASSEMBLY (continued)
7.
Unscrew the chopper plate (11). Prevent the shaft from turning by placing a screwdriver by the copper blade and locking
the impeller (12) blade.
8.
Remove the macerator housing (13).
9.
Loosen the impeller set screw (14) and slide the impeller (12) off the pump motor shaft (15).
10. Remove the two wearplate screws (16), the two top and bottom screws (17), and the two plastic sealing washers (18) that
secure the plastic wearplate (19).
11. Remove the plastic wearplate (19) with the rubber sealing sleeve (20) and gasket (21).
12. Slide the displacement pump (4), impeller (22), seal and retainer (23), and slinger (24) off the pump motor shaft (15).
13. Inspect all parts for wear or damage.
14. Wash all parts in fresh water.
9
8
7
ASSEMBLY--PUMP AND MACERATOR ASSEMBLY
1.
Procure the parts necessary for assembly as determined during inspection of the old parts.
2.
Press the seal and retainer (23) into the displacement pump (4) with the lip facing the impeller. Ensure that the seal is
seated squarely in the bore.
3.
Install the slinger (24) and displacement pump (4) over the pump motor shaft (15).
4.
Lubricate the impeller (22) and impeller bore with fresh water and install the impeller (22) into the displacement pump (4).
5.
Position the gasket (21) against the displacement pump (4) and install the plastic wearplate (19) ensuring that the two
plastic sealing washers (18) are installed under the top and bottom screws (17). Install the remaining two wearplate
screws (16).
6.
Slide the rubber sealing sleeve (20) onto the pump motor shaft (15) and push it into its recess in the plastic wearplate (19).
0155 00-2
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