Doosan DL220 - Braking; Electrical System

OP000040
6-7
Troubleshooting
BRAKING
ELECTRICAL SYSTEM
Problem Possible Cause Remedy
Reduced brake action. Low secondary pressure in brake
valve.
Repair or replace brake
valve.
Worn brake disks. Replace brake disks.
Damaged brake disks. Replace brake disks.
Damaged brake valve block. Replace valve.
Air in brake hydraulics due to leak
in brake hose.
Repair leak, bleed system.
After bleeding brakes, brakes
are not fully released.
Damaged brake disks. Replace disks.
Damaged brake disk return spring. Replace return springs.
Problem Possible Cause Remedy
Battery has no power and will
not accept a charge.
Damaged battery plates. Replace battery.
Alternator not charging properly. Repair or replace
alternator.
Bad ground. Clean and tighten.
Loose electrical connector. Clean and tighten.
Alternator belt loose or damaged. Tighten or replace.
Battery will accept a charge
but discharges soon after.
Internal battery short. Replace battery.
Wiring harness short. Repair wire.