TM 10-4320-325-14
5-11. REPLACE/INSPECT IMPELLER, WEAR
PLATE, SHAFT SEAL, AND
SHAFT ADAPTER.
This task covers:
a) Removal
c) Installation
b) Inspection
INITIAL SETUP
Tools
Equipment
Condition
Tool Kit, General Mechanics (Item 1,
Para
Volute removed.
Material/Parts
Flywheel and cooling case
O-ring, 29513-253
removed.
Shaft Seal, 13200E8806
a. Remove impeller locking bolt (1) and teflon washer (2).
b. Unscrew impeller (3) in a counterclockwise direction.
NOTE
It may be necessary to use a small wood block and the rubber mallet to tap the Impeller vanes so Impeller
breaks loose.
c. Remove shims (4) and spring and spring seat [part of seal assembly (5), the seal will remain In the shaft adapter].
d. Remove wear plate (6) by removing bolts (7). Remove and discard O-ring (8).
e. Remove shaft adapter (9) and seal, discard shaft seal.
INSPECTION:
a. Inspect impeller for damage or wear
b. Inspect wear plate for damage or wear.
INSTALLATION:
a. Install wear plate (6) with screws (7).
b. Install new O-ring (8) between pump casing (10) and wear plate (6)