Manitowoc Published 10-09-2020, Control # 259-06 3-7
MLC80A-1/MLC90A-1/MLC100A-1/MLC100-1 SERVICE/MAINTENANCE MANUAL ELECTRICAL SYSTEM
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NOTE: Sockets for circuit breakers CB6, CB7, and
CB11—CB20 are not used.
Item Description Item Description
1 Programing Plug 6 Relay 24/12VDC, 30A
2 J1939 Diagnostic Plug 7 Battery, SCM 3.6V lithium AA
3 Converter (24/12VDC) 8 Time Delay Relay, SCM and CCM Backup—24V
4 Main Fuse (CB41) 9 Relay Contactor—28V
5 Ground Bus Bar
Circuit
Breaker
Amps Description of Item Protected
Circuit
Breaker
Amps Description of Item Protected
CB1 15 Crane Bus CB29 15 CCMC11 (+UB input supply)
CB2 15 Boom Positioning Light CB30 15 CCMC11 (+UB input supply)
CB3 15 ECM Key Power CB31 15 SCM00 (+UB input supply)
CB4 15
External Key Switch, Setup Remote
Receiver, and Displays
CB32 15 IOSA22 (+UB input supply)
CB5 15
Radio, Dome Light, Horn, Radio, Bed
Service Lights
CB33 25 Cab A/C Heat
CB8 15 Cab Accessories CB34 15 Wipers
CB9 15 Cab CCS Display CB35 15 Switch Back Lights
CB10 25 DC/DC Converter CB36 15 Cab Front Lights
CB21 15 IOLC30 (+UB input supply) CB37 15 J1939 Diagnostic
CB22 15 IOLC30 (+UB input supply) CB38 15 CAM Monitor Power
CB23 15 IOLC31 (+UB input supply) CB39 15 Radio Switched Power (if equipped)
CB24 15 IOLC31 (+UB input supply) CB40 15 Joysticks
CB25 15 CCM-10 (+UB input supply) F1 15 Accessory Socket (right console)
CB26 15 CCM-10 (+UB input supply) F2 20 Seat Riser
CB27 15 CCM-10 (+UB input supply) F3 15 Accessory Socket (left console)
CB28 15 CCM-10 (+UB input supply) F4 15 Not Used