Manitowoc 14000 Service Maintenance Manual

Reference Only
Manitowoc Published 09-05-14, Control # 226-02 2-31
14000 SERVICE MANUAL HYDRAULIC SYSTEM
2
Manual Override Tests
The pumps, motors, and solenoid valves have manual
overrides that allow electrical problems to be isolated from
mechanical problems when troubleshooting hydraulic
system problems.
Pump or Motor Override
See Figure 2-29 for following procedure.
1. Start and run engine at low idle.
2. Rotate manual override (2) in either direction to stroke
pump or motor in corresponding direction.
3. If pump or motor is operating properly, corresponding
side of circuit will stall.
Solenoid Valve Override
See Figure 2-29 for following procedure.
1. Start and run engine at low idle.
2. Insert a rigid steel rod through hole in end of valve cap.
3. Depress valve spool with rod.
4. If valve is operating properly, corresponding side of
circuit should operate.
DANGER
Falling or Moving Load Hazard
To prevent unexpected movement of loads or crane when
operating any manual override:
• Park crane in an area where it will not interfere with
other job site equipment or structures.
• Land all loads and lower boom onto blocking at
ground level.
• Park all crane functions.
Item Description
1 Pump EDC/Motor PCP
2 Manual Override
3 Electrical (DIN) Connector
4 Solenoid Valve
5 Manual Override (though end cap)
FIGURE 2-29
1
P966a
3
Typical Pump Installation
2
Typical Solenoid Valve Installation
P2378
4
3
5

Manitowoc 14000 Specifications

General

Brand	Manitowoc
Model	14000
Category	Construction Equipment
Language	English