Altec DRM 12 - Troubleshooting Chart

Possible Cause
Weak battery.
Battery terminals corroded or poor ground
connection.
Defective ignition switch or starter solenoid.
Malfunctioning starter.
Hood safety switch not engaged or damaged.
Fuel tank empty.
Hood safety switch not engaged or damaged.
Choke inoperative (gasoline engines only).
Engine ooded.
Battery partially discharged.
Faulty engine carburetion or ignition.
Air in fuel line (diesel only).
Preheater not working (diesel only).
Material wedged against cutting implement.
Slipping or broken drive belt.
Defective clutch.
Panic bar activated.
Ensure proper control bar position.
Debris jammed in roller area.
Improper hydraulic uid level.
Engine not operating at full throttle.
1
Cutting implement not turning at correct rpm.
1
Engine not operating at full throttle.
1
Cutting implement not turning at correct rpm.
1
Material blockage.
Belt slippage.
Clutch slippage.
Appendix — Troubleshooting Chart
Troubleshooting Chart
Symptom
Starter will not crank
engine.
Engine will not start.
Engine runs but cutting
implement does not turn.
Feed rollers do not turn.
Feed roller only turns in
reverse.
Text Procedure/Corrective Action
Charge battery.
Clean and tighten connections.
Replace defective components.
Replace starter.
Verify cutter hood and switch activator plate prop-
erly secured.
Refuel.
Verify cutter hood and switch activator plate prop-
erly secured.
Refer to engine owner’s manual.
Refer to engine owner’s manual.
Charge battery.
Refer to engine owner’s manual.
Refer to engine owner’s manual.
Refer to engine owner’s manual.
Refer to Section 5: Clearing Feed System and
Discharge Chute.
Refer to Maintenance section.
Refer to Care of the Unit.
Reset panic bar and return feed control bar to
neutral position.
Place in forward or reverse position.
Refer to Section 5 — Clearing Feed System and
Discharge Chute.
Fill hydraulic tank.
Increase engine speed to maximum setting.
1
Refer to Section 5 — Clearing Feed System and
Discharge Chute.
Increase engine speed to maximum setting.
1
Refer to Section 5 — Clearing Feed System and
Discharge Chute.
Refer to Maintenance section.
Refer to Care of the Unit.
This chart is general to all Altec chippers. Some informa-
tion may be excluded or unimportant to certain models.
For specic information pertaining to one model, refer to
the Maintenance Section of this manual.