TM 10-8145-222-23
0078
REPAIR CONTINUED
27. Disconnect battery negative (-) terminal (WP 0053, Disconnect).
28. Install panel (Figure 9, Item 3) to door (Figure 9, Item 5) and secure using four captive nuts (Figure 9, Item 18).
29. Secure panel (Figure 9, Item 3) onto door (Figure 9, Item 5) using three bolts (Figure 9, Item 4).
30. Close cover (Figure 5, Item 3) and secure using two screws (Figure 5, Item 4)
31. Operate unit in accordance with normal operating procedures to verify proper operation after replacement of
MPC board (TM 10-8415-222-10, Operating Procedures).
32. Place MTRCS back into desired mode of operation (TM 10-8415-222-10, Operating Procedures).
END OF TASK
Microprocessor Control Box Component Identification
Table 2 and Figure 11, Figure 12, and Figure 13 provides identification and location information for all components
contained within the microprocessor control box.
Table 2. Microprocessor Control Box Component Identification.
MPC Box
Figure
Item
Component
Location
Nomenclature
11
1
Fuse
Back Wall
F11-4A
11
2
Fuse
Back Wall
F2-5A
11
3
Fuse
Back Wall
F3-25A
11
4
Fuse
Back Wall
F4-15A
11
5
Fuse
Back Wall
F5-7.5A
11
6
Fuse
Back Wall
F7-10A
11
7
Fuse
Back Wall
F8-10A
11
8
Relay
Back Wall
Run Control Relay (RCR)
11
9
Relay
Back Wall
Speed Relay (SR)
11
10
Relay
Back Wall
Defrost Relay Compartment 1 (1DR)
11
11
Relay
Back Wall
Run Relay Compartment 1 (1RR)
11
12
Relay
Back Wall
Cool Relay Compartment 1 (1CR)
11
13
Relay
Back Wall
Hot Gas Relay Compartment 1 (1HGR)
11
14
Relay
Back Wall
Glow Plug Relay (GPR)
11
15
Relay
Back Wall
Diesel Electric Relay (DER)
11
16
Relay
Back Wall
Defrost Relay Compartment 2 (2DR)
11
17
Relay
Back Wall
Run Relay Compartment 2 (2RR)
11
18
Relay
Back Wall
Cool Relay Compartment 2 (2CR)
11
19
Relay
Back Wall
Hot Gas Relay Compartment 2 (2HGR)
11
20
Relay
Back Wall
Starter Solenoid Relay (SSR)
