Manitowoc 16000 User Manual

Reference Only
Manitowoc Published 05-03-17, Control # 228-03 10-9
16000 SERVICE/MAINTENANCE MANUAL TROUBLESHOOTING
10
PROBLEM 8
A load drum does not operate.
POSSIBLE CAUSES
Load drum brake not releasing, no voltage through control handle to controller, no voltage out of
controller to pump EDC, node controller fault, wiring or switch is damaged.
CHECKS
On the drum Diagnostic screen is the drum brake disengaged when the problem handle is moved in the problem
direction? Does the drum Diagnostic screen indicate a problem with the pump, motor, brake, or pawl?
Yes
No
Does the engine load when moving the problem handle in either direction?
Is the drum park brake switch in the correct position?
Yes No
Yes No
Are 28 volts present at the brake solenoid when
the problem handle is moved? (See Section 2 -
Manual Override Test.)
Yes
No
Is there power after the switch?
Move the switch to
the correct position.
Repair or replace the wiring or switch.
When moving the problem handle fully in both directions, does the drum Diagnostic
screen show 100% handle command in the raise or lower direction?
Yes No
When moving the problem handle fully in both
directions, does drum Diagnostic screen show
100% pump control in each direction?
Yes No
Is voltage at the problem handle
more than 0 with handle moved?
(See Section 3 - Diagnostic Screen.)
Yes
No
Is there a system fault when the handle is moved?
Correct the problem.
Yes No
Is pressure at the brake more than 21 bar
305 psi)? (See Section 3 - Checking
Electrical Inputs/Outputs.)
Repair or replace the brake.
Yes No
Is pressure to the brake more than 21
bar (305 psi)? (See Section 3 -
Diagnostic Screen.)
Readjust the source of pressure
relief or replace the drum brake.
Yes
No
Replace the brake valve.
Manually stroke the pump. Does the pump
pressurize? (See Section 2 - Manual Override Test.)
Are 28 volts present (full speed) at the pump EDC
with the handle moved fully back? (See Section 3 -
Checking Electrical Inputs/Outputs.)
Yes
No
Yes
No
Replace the pump EDC.
Repair or replace the wiring.
Replace the control handle.
Isolate the pump. Does the manually
stroked pump pressurize?
Yes No
Repair or replace
the motor.
Repair or replace
the pump.
Are 28 volts available to the switch?
Yes No
Repair or replace the wiring.
Yes No
Consult your dealer.
Replace the switch.
Consult your Manitowoc
dealer or the Crane Care
Lattice Team.

Manitowoc 16000 Specifications

General

Brand	Manitowoc
Model	16000
Category	Construction Equipment
Language	English