TM 10-4320-344-24
2.21.45 Tachometer Angle Drive Maintenance, Models 609-A and US636HCCD-1.
This task covers:
2.21.45.1
Removal
2 .
2
1 .4 5 . 3 I n s t a l l a t i on
2 .
2
1 .4 5 . 2 R e p a ir
INITIAL SETUP
Tools
General Mechanic’s Automotive
Tool Kit, Appendix B, Section
III, Item 1
Goggles, Appendix B, Section III,
Item 2
Material/Parts
Gloves, Appendix C, Item 11
Rags, Appendix C, Item 20
S o l v e n t ,- Dry Cleaning, Appendix C,
Item 26
Gaskets (TM 10-4320-344-24P)
Lock Washers (TM 10-4320-344-24P)
Equipment Conditions
Pumping station shut down, TM 10-4320-
344-10.
Tachometer Drive Cable disconnected,
paragraph 2.21.44.
General Safety Instructions
Do not work on equipment that is not
securely stabilized to prevent rolling
o r s l i d i n g.
Do not work on equipment without follow-
ing standard shop safety practices.
2.21.45.1 Removal.
Figure 2-160.
Tachometer Angle Drive Maintenance.
a.
Loosen coupling (Figure 2-160, 1) that secures tachometer drive cap (2) to
drive adapter (3) and remove tachometer drive cap (2).
When removing tachometer angle drive, be careful not to drop drive shaft into
engine.
Engine damage could result.
b .
Remove two bolts (4), drive adapter (3) (with attached drive shaft (5) and
gear (6)), and gasket (7) from cylinder block.
Discard gasket (7).
c .
Pull drive shaft (5) and gear (6) out of drive adapter (3).
2-360
