Manitowoc MLC150-1, Service Maintenance Manual

Page: 61 / 206

Manitowoc
Published 03-21-2021, Control # 264-01
3-7
MLC150-1 SERVICE/MAINTENANCE MANUAL ELECTRICAL SYSTEM
3
Legend for Figure 3-4 .
Item Description
1 Power Supply Converter — 24/12VDC, 30A
2 Main Circuit Breaker — 120A
3 Diagnostic Receptacle
4 Program Receptacle
5 Crane Bus — 15A Circuit Breaker 6C1
6 Key — 15A Circuit Breaker 6C3 (includes horn and USB accessory socket)
7 Radio — 15A Circuit Breaker 6C5
8 Cab Main and RCL Displays — 15A Circuit Breaker 6C9
9 Boom Position Light — 10A Circuit Breaker 6C2
10 ECM Key — 15A Circuit Breaker 6C4
11 Cab Accessories — 15A Circuit Breaker 6C8
12 DC/DC Converter — 25A Circuit Breaker 6C10
13 IOLC30 UB— 15A Circuit Breaker 8C21
14 IOLC31 UB— 15A Circuit Breaker 8C23 (includes SCMD01 UB)
15 IOLC32 UB— 15A Circuit Breaker 8C25
16 CCM10 UB— 15A Circuit Breaker 8C27
17 CCM10 UB — 15A Circuit Breaker 8C29
18 SCM00 UB — 15A Circuit Breaker 8C31
19 Cab A/C Heat— 25A Circuit Breaker 8C33
20 Switch Back Lights — 15A Circuit Breaker 8C35
21 J1939 Diagnostics— 15A Circuit Breaker 8C37
22 Radio Illumination — 15A Circuit Breaker 8C39
23 IOLC30 UB— 15A Circuit Breaker 8C22
24 IOLC31 UB— 15A Circuit Breaker 8C24
25 IOLC32 UB— 15A Circuit Breaker 8C26
26 CCM10 UB— 15A Circuit Breaker 8C28
27 CCM10 UB — 15A Circuit Breaker 8C30
28 IOSA22 UB — 15A Circuit Breaker 8C32
29 Wipers — 15A Circuit Breaker 8C34
30 Cab Work Lights — 15A Circuit Breaker 8C36
31 Camera Monitor Power — 15A Circuit Breaker 8C38
32 Joysticks — 15A Circuit Breaker 8C40
33 12VDC Accessory Socket (right console) — 15A Fuse 12VF1
34 Seat Riser — 20A Fuse 12VF2
35 12VDC Accessory Socket (left console) — 15A Fuse 12VF3
36 Spare — 15A Fuse
37 Battery, SCM Controller Real-Time Clock — 3.6V Lithium AA, 2400 mAh
38 Relay — 24V, 10A ECM Power
39 Ground Distribution Post
40 Time Delay Relay, SCM and CCM Controller Backup — 24V
41 Relay Contactor — 28V, 120A Cab Switch Power
• The circuit breaker numbers (for example, 6C1 and 8C21) correspond to the circuit breaker
numbers in the MLC150-1 Electrical Schematic located at the end of this section.
REFERENCE
ONLY