TM 10-4320-309-14
TM 4320-14/1
4-12. REPLACE/INSPECT IMPELLER, SHAFT SEAL, AND SHAFT ADAPTER
This task covers:
a) Removal
c) Installation
b) Inspection
INITIAL SETUP
Tools
Tool Kit, General Mechanics (Item 2,
Appendix B, Section III)
Wrench, Strap (Item 9, Appendix B,
Section III)
Mallet, Rubber (Item 17, Appendix B,
Section III)
Materials/Parts
None
Equipment
Condition
Para
3-16
Inlet air sound enclosure assembly
removed.
3-16
Outlet air sound enclosure assembly
removed.
4-11
Volute removed.
4-19
Recoil starter assembly removed.
REMOVAL:
a.
Fit a strap wrench over the starter pulley cup.
b. Use 9/16 inch socket to remove impeller locking bolt (1) and teflon washer (2).
c.
Unscrew impeller (3) in a counterclockwise direction using the strap wrench to hold the shaft from turn-
ing.
NOTE
it maybe necessary to use a small wood block and the rubber mallet to
tap the impeller vanes so impeller breaks loose.
d.
Remove shims (4 and 5).
e.
Remove and discard shaft seal (9) and seat (9A).
f.
Remove shaft adapter (12).
INSPECTION:
a.
Inspect impeller for damage or wear.
INSTALLATION:
a.
Ensure key (13) is installed in keyway of engine shaft.
b.
Position slot of shaft adapter (12) onto shaft key and push shaft adapter onto engine shaft.
4-20
