Manitowoc Published 10-09-2020, Control # 259-06 2-5
MLC80A-1/MLC90A-1/MLC100A-1/MLC100-1 SERVICE/MAINTENANCE MANUAL HYDRAULIC SYSTEM
Motor Identification
Drum 1 and 2 Motors
Each drum 1 and 2 motor (Figure 2-6) is a bidirectional, 170
cc variable-displacement, bent-axis piston motor. Each
motor’s displacement is controlled by an electronic motor
controller.
Each motor has an external loop flushing circuit that
continuously removes a small volume of oil from the motor
loop to provide cooling and oil purification.
Drum 3 Motor
Drum 3 motor (Figure 2-6) is a bidirectional, 107 cc variable-
displacement, bent-axis piston motor. Motor displacement is
controlled by an electronic motor controller.
The motor has an external loop flushing circuit that
continuously removes a small volume of oil from the motor
loop to provide cooling and oil purification.
Item Description
1 Pressure Port A
2 Pressure Port B
3 Tank Port
4Test Port Ma
5Test Port Mb
6 Pilot Pressure Port G
FIGURE 2-6
Item Description
1 Pressure Port A
2 Pressure Port B (opposite side)
3Tank Port
4Test Port G1
5 Pilot Pressure Port G
FIGURE 2-7