Diamond Products UDM - Manual (Page 26)

Appendix E
Troubleshooting
Table 1: Troubleshooting
Symptom Problem Solution
1. Core bit will not raise/lower.
Engine off? Start engine.
Function switch in Drill mode? Move function switch to Drill.
2. Machine will not move
forward/backward.
Engine off? Start engine.
Function switch in Drill mode? Move function switch to Start/Drive.
3. Controls/buttons/switches
do not work.
Engine off? Start engine.
Circuit breaker off? Blown fuse?
Function switch out of Drill
mode?
Activate circuit breakers; replace
fuses; move function switch to Drill.
Master battery disconnect off? Turn on master battery disconnect.
4. Hydraulic outlets do not
work.
Function switch in Hydraulic
Outlets mode?
Move function switch to Hydraulic
Outlets.
5. Electrical outlets do not
work.
Circuit breaker off?
Activate circuit breakers; check
reset button on ground fault outlet.
Broken engine belt? Replace engine belt.
6. No vacuum suction.
Vacuum valve open? Close vacuum valve.
Surface cracked/scored?
Check surface and readjust;
suction may not be possible.
Vacuum line leak?
Tighten fittings and water jars;
replace bad hoses.
Circuit breaker off?
Turn on 40 amp circuit breaker;
check reset button on ground fault
outlet.
Broken engine belt? Replace engine belt.
7. Short belt life.
Loose belt causing slippage? Check belt tension.
Sheaves misaligned?
Use straightedge to check sheave
alignment.
Worn sheave grooves?
Check for groove wear and
replace as necessary.
Overheating of belt? Check belt tension.
8. Engine does not start.
(Refer to engine manual and
manufacturer for additional
engine troubleshooting
information.)
Emergency stop button down? Pull up emergency stop button.
Master battery disconnect off? Turn on master battery disconnect.
Fuel shutoff valve closed? Open fuel shutoff valve.
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