TM 5-3825-270-23&P
FIELD MAINTENANCE
CAB CONTROL BOX TACHOMETER REPLACEMENT
INITIAL SETUP:
Tools and Special Tools
References
Tool Kit, General Mechanic's: Automotive
Parts Manual (WP 0220) Figure 4008
(WP 0225, Table 1, Item 12)
Equipment Condition
Materials/Parts
Cab control box faceguard removed. (WP 0205)
Tags, Identification, White (WP 0224, Table 1, Item
54)
Lockwasher Qty: 1
REMOVAL
NOTE
Tag and mark wires prior to removal to ensure proper installation.
1.
Remove nut (Figure 1, Item 2) and two black wires (Figure 1, Item 1) from ground stud (Figure 1, Item 3).
1
2
3
4
9
8
7
6
5
Figure 1. Cab Control Box Tachometer Removal.
2.
Remove nut (Figure 1, Item 5), white wire No. 9 (Figure 1, Item 7), and white jumper wire (Figure 1, Item 6)
from +24vdc stud (Figure 1, Item 4).
3.
Disconnect white wire No. 5 (Figure 1, Item 9) from terminal (Figure 1, Item 8).
4.
Remove nut (Figure 2, Item 10), lockwasher (Figure 2, Item 11), washer (Figure 2, Item 12), and white wire
No. 10 (Figure 2, Item 14) from stud (Figure 2, Item 13). Discard lockwasher.
