Troubleshooting; Electrical System - Doosan DX225LC-3 Operation & Maintenance Manual

Whenever an operating problem with the machine occurs, take
corrective action immediately by checking for the cause of the
problem.
If the cause of the operating problem cannot be determined,
contact your DOOSAN distributor. Never perform an adjustment
or the disassembly of the hydraulic, electrical or electronic
components without first contacting a DOOSAN distributor.
AVOID DEATH OR SERIOUS INJURY
Instructions are necessary before operating or servicing
machine. Read and
Maintenance Manual and signs (decals) on machine. Follow
warnings and instructions in the manuals when making
repairs, adjustments or servicing. Check for correct
function after adjustments, repairs or service. Untrained
operators and failure to follow instructions can cause death
or serious injury.

ELECTRICAL SYSTEM

Problem
Battery will not hold a
charge.
Low battery power.
Engine speed is not
controllable.
DX225LC-3
6
WARNING
understand the Operation
Cause
Low battery power.
Alternator belt loose or bad.
Loose or corroded terminals.
Alternator faulty.
Internal battery short.
Short-circuit in wiring.
Speed control dial failed.
Throttle controller failed.
Speed control motor failed.
Blown fuse.
Wiring harness damaged.
Connector failed.

Troubleshooting

and
Clean and retighten.
Tighten or replace belt.
Tighten or replace as required.
Repair or replace as required.
Replace battery.
Repair as required.
Replace control dial.
Replace controller.
Repair or replace as required.
Replace fuse.
Repair or replace as required.
Repair or replace as required.
Correction
Troubleshooting
6-1