Doosan DL200 - Travel System

OP000040
6-5
Troubleshooting
TRAVEL SYSTEM
General
Problem Possible Cause Remedy
Machine will not travel. Transmission clutch pressure
incorrect.
Adjust pressure.
Transmission charge pump
damaged.
Replace pump.
Damage to transmission control
valve wiring harness.
Repair wiring.
Burned travel relay or fuse. Replace relay or fuse.
Forward/Reverse solenoid for
transmission control valve sticking.
Clean and repair.
Damaged transmission clutch. Repair or replace clutch.
Damaged drive shaft. Repair or replace.
Damaged transmission or axle. Repair or replace.
Wheel brakes not releasing. Repair brakes.
Parking brake not releasing. Repair parking brake.
Machine will travel but has
little power.
Fluid pressure low in transmission
clutch.
Repair clutch.
Transmission fluid low. Add fluid.
Damage to torque converter. Repair or replace.
Engine malfunction. See Engine
Troubleshooting Table.
Brake valve. Disassemble and clean.
Unusual transmission noise. Low transmission fluid, or low
quality fluid.
Add fluid or change fluid.
Worn transmission parts. Replace parts.
Broken gears or bearings. Replace parts.
Transmission fails to operate. Damaged transmission clutch
disks.
Replace disks.
Damaged wires in transmission
control wire harness.
Repair wires.
Drive shaft vibration Noisy
universal joints.
Bent drive shaft. Replace drive shaft.
Loose universal joints. Tighten bolts that secure
joints.
Worn or damaged universal joint. Replace universal joint.
Loose universal joints. Tighten bolts that secure
universal joints.
Lack of lubrication. Lubricate universal joints.
Worn slip joint spline. Replace slip joint.
Noisy Front or Rear Axle. Worn or broken gears. Replace gears.
Low oil level, poor quality oil. Add oil, change oil.
Worn bearings. Replace bearings.
Worn shaft spline. Replace spline.