TM 9-2320-280-20-2
4-68
Change 2
4-43. KICK-DOWN SWITCH MAINTENANCE (3L80)
This task covers:
a. Removal
c. Adjustment
b. Installation
a. Removal
b. Installation
c. Adjustment
1.
Disconnect engine harness leads 315A (5) and 315B (4) from kick-down switch (3).
2.
Remove two capscrews (1) and switch (3) from fuel injection pump (2).
1.
Install kick-down switch (3) on injection pump (2) with two capscrews (1).
2.
Connect leads 315A (5) and 315 B (4) to kick-down switch (3).
1.
Disconnect throttle return spring (6) from throttle shaft lever (7) and accelerator cable bracket (9).
2.
Disconnect engine harness leads 315A (5) and 315 B (4) from kick-down switch (3).
3.
Connect multimeter to leads on kick-down switch (3) to read continuity.
4.
Loosen two capscrews (1) to allow movement of kick-down switch (3).
5.
Position feeler gauge set at 0.295 in. (7.493 mm) between throttle shaft lever (7) and injection pump (2)
ensuring feeler gauge does not touch screw (8).
6.
Move throttle shaft lever (7) to wide open position so throttle shaft lever (7) rests on feeler gauge.
7.
Rotate kick-down switch (3) slowly until multimeter reads continuity through kick-down switch (3)
and tighten capscrews (1).
8.
Position feeler gauge set at 0.310 in. (7.874 mm) between throttle shaft lever (7) and injection pump (2)
ensuring feeler gauge does not touch screw (8).
9.
Move throttle shaft lever (7) to wide open position so throttle shaft lever (7) rests on feeler gauge.
Note multimeter, no continuity should be present. If continuity is present, repeat steps 3 through 8.
10.
Connect leads 315A (5) and 315 B (4) to kick-down switch (3).
11.
Connect throttle return spring (6) to accelerator cable bracket (9) and throttle shaft lever (7).
NOTE
Kick-down switch must be adjusted whenever it is replaced or
when injection pump is replaced.
INITIAL SETUP:
Applicable Models
All vehicles except: M997A2, M1025A2,
M1035A2, M1043A2, M1045A2, M1097A2,
M1123
Tools
General mechanic’s tool kit:
automotive (Appendix B, Item 1)
Test Equipment
Multimeter (Appendix B, Item 166)
Manual References
TM 9-2320-280-10
TM 9-2320-280-24P
Equipment Condition
• Battery ground cable disconnected (para. 4-73).
• Hood raised and secured (TM 9-2320-280-10).
