Manitowoc 14000 Service And Maintenance Manual

Reference Only
Manitowoc Published 09-10-14, Control # 065-24 10-21
14000 SERVICE MANUAL TROUBLESHOOTING
10
350 psi (24 bar) Not Obtained
CHECKS
Is hydraulic oil level in reservoir OK and shut-off valve fully open?
PROBLEM 20
Hydraulic system is operating hot.
POSSIBLE CAUSES
Low hydraulic oil level in reservoir; heat exchanger problem; dirty filter;
system multifunction valves are not set correctly; pump or motor problem.
Yes
No
Fill tank to full level or open shut-off valve.Is heat exchanger radiator clean?
Yes
No
Clean, repair or replace heat exchanger radiator.
Yes No
Is charge pressure 350 psi (24 bar) at system pressure sensor?
Yes No
Are system multifunction valves
operating at the recommended
system pressures?
Are suction filters clean?
Replace filters.
Yes
No
Adjust or replace problem
valve. (See Section 2 -Setting
Pump Pressure.)
Adjust charge pressure relief valve for 350 psi (24 bar).
(See Section 2 - Checking and Adjusting Charge Pressure.)
350 psi (24 bar) Obtained
System should be at
correct temperature.
Check for internal leakage at pump and motor.
(See Section 2 -Testing for Pump or Motor Leakage.)
Normal High Leakage
Is system operating pressure excessive?
Yes No
Repair or replace pump or
motor, as required.
Repair or replace pump or
motor, as required.
Locate and reduce load on
motor transmission.

Manitowoc 14000 Specifications

General

Brand	Manitowoc
Model	14000
Category	Construction Equipment
Language	English