TM 9-2320-272-24-1
THIS TASK COVERS:
b. Installation
a. Removal
INITIAL SETUP:
APPLICABLE MODELS
REFERENCES (TM)
TM 9-2320-272-10
M939/A1
TM 9-2320-27224P
TOOLS
EQUIPMENT CONDITION
General mechanic's tool kit (Appendix E, Item 1)
Parking brake set (TM 9-2320-272-10).
MATERIALS/PARTS
Left splash shield removed (TM 9-2320-272-10).
Rubber grommet (Appendix D, Item 565)
1.
Disconnect tachometer driveshaft (5) from tachometer pulse sender unit (12).
2.
Remove screw (1), washer (2), and loop clamp (3) from intake manifold (11).
3.
Remove rubber grommet (4) from firewall (6). Discard grommet (4).
4.
Remove eight screws (9) from instrument cluster (8).
5.
Pull instrument cluster (8) away from instrument panel (10).
6.
Disconnect tachometer driveshaft (5) from tachometer (7) on instrument cluster (8).
7.
Remove tachometer driveshaft (5) from engine side of firewall (6). Replace if bent or cracked.
1.
Push tachometer driveshaft (5) through hole in firewall (6) to tachometer (7).
2.
Install tachometer driveshaft (5) on tachometer (7).
3.
Install instrument cluster (8) on instrument panel (10) with eight screws (9).
4.
Slide new rubber grommet (4) over disconnected end of driveshaft (5) and install in firewall (6).
5.
Install driveshaft (5) on tachometer pulse sender unit (12).
6.
Position loop clamp (3) over driveshaft (5) and install on intake manifold (11) with washer (2) and
screw (1).
3-256
