Manitowoc MLC650 - Pump 7; Pump 9

Reference Only
Manitowoc Published 09-09-16, Control # 229-09 2-5
MLC650 SERVICE/MAINTENANCE MANUAL HYDRAULIC SYSTEM
2
2
Pump 7
Pump seven (Figure 2-5) is a bidirectional variable-
displacement pump providing flow to either the variable
position counterweight (VPC) tray or beam motors. A
diverter valve, driven by IOLC31, provides pump flow to
either the tray or beam motors, as commanded by the control
system. Pump direction and displacement is controlled by an
electronic displacement control (EDC), driven by the IOLC33
control module.
Pump 9
Pump nine (Figure 2-6) is a unidirectional variable-
displacement pump providing flow to the accessories. The
displacement is controlled by a proportional solenoid valve,
driven by the IOLC34 control module.
FIGURE 2-5
Item Description
A, B Main Pressure Lines
L1, L2 Case Drain Ports
M1 Gauge Port—A
M2 Gauge Port—B
M3 Gauge Port—Charge Pressure
M4, M5 Gauge Ports—Servo Pressure
S Suction Line—Charge Pump
FIGURE 2-6
Item Description
BOutlet Port
L, L1 Case Drain Ports
S Suction Port