Manitowoc 14000 Service Maintenance Manual

Reference Only
TROUBLESHOOTING 14000 SERVICE MANUAL
10-18
Published 09-05-14, Control # 226-02
PROBLEM 17
No swing operation, engine does not load.
POSSIBLE CAUSES
No voltage through control handle to controller; No voltage out of controller to pump EDC; Wiring or switch is
damaged; Node Damaged; Damaged pump or motor; Swing holding brake switch actuated.
CHECKS
On swing Diagnostic screen is brake disengaged when handle is moved in problem direction?
Does Diagnostic screen indicate a problem with swing pump or brake?
Yes No
Check for 24 volts from swing brake
switch. (See Section 3 - Checking
Electrical Inputs/Outputs.)
Yes
No
Yes No
Ok
Not Ok
Yes
No
Yes
No
Is swing handle center switch closed? Does handle voltage on
Diagnostic screen go to 0 when handle is moved to neutral?
When handle is enabled, does handle
percent change?
Repair or replace wiring,
node, or contact service.
Replace switch.
Check wiring connector at pump EDC.
Consult dealer/factory.
Tighten or repair connector.
Consult dealer/factory.
Manually stroke swing pump. (See Section 2 - Manual Override Test.) Does bed rotate?
Is system pressurized?
Is voltage present at pump EDC?
(See Section 3 - Checking Electrical Inputs/Outputs.)
Replace pump EDC.
Repair or replace motor.
Repair or replace wiring
to PC or consult dealer/
factory.
Repair or replace pump.
When moving applicable handle fully in both
directions, does Diagnostic screen show 100%
handle command in left or right direction?
Yes
No
Replace control handle
or repair wiring.
Yes
No
Is there voltage to swing
handle?
No
Yes
Consult dealer/factory.
Replace control handle or
repair wiring.
Yes No

Manitowoc 14000 Specifications

General

Brand	Manitowoc
Model	14000
Category	Construction Equipment
Language	English