DTI Winco W15PTOS Owner's Manual - Page 12

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TROUBLE SHOOTING TABLE

SYMPTOM
CAUSE(S)
No output
1. Circuit breaker open.
voltage.
2. Defective voltmeter.
3. Short circuit in the load.
4. Defective receptacles.
5. Loose (or broken) wires or
connections in control box.
6. Defective rectifier.
7. Dirty slip rings.
8. Brushes binding in holders.
9. Shorted or open armature.
10. Shorted or open field coils.
Low voltage.
1. Engine speed too slow.
2. Generator overloaded.
3. Inadequate engine horsepower.
4. Incorrect field excitation.
(No-load output low.)
High voltage.
1. Engine speed too fast.
Output voltage 1. Tumbling bar (coupling shaft)
flickering or
misalignment.
fluctuation.
2. Engine speed not constant.
3. Loose connection in field circuit.
4. Tumbling bar U-joints not
synchronized.
Excessive
1. Power take-off misalignment
vibration.
excessive.
2. Loose mounting nuts and bolts
or hold-down studs.
3. Universal joints in coupling
shaft worn or dry.
4.
Defective bearings.
Generator
1. Poor ventilation.
overheating.
2. Generator overloaded.
3. Shorted turns in field or
armature windings.
Oil leak.
1. Loose plug in gear case.
2. Defective seal, gasket, or
plug in gear case.
CORRECTIVE ACTION
1.
Reset circuit breakers, replace if defective.
2.
Check output with another meter, replace meter if defective.
3.
Disconnect the load. Check voltage at receptacle cord set.
Check motors, appliances and load leads for short circuit.
Repair short.
4.
Remove panel cover and check for voltage to the
receptacles. Replace defective receptacles.
5.
Remove panel cover and check all wiring and connections.
Tighten and/or repair where necessary.
6.
Test rectifier. Replace if defective.
7.
Clean and polish. Use 00 sandpaper or crocus cloth,
never use emery paper.
8.
Check brushes for swelling; replace defective brushes;
clean brush holders.
9.
Measure armature resistance. Replace armature if open or
shorted.
10.
Measure between leads for open or short. Replace field coils if
defective.
1.
Check engine speed. Increase RPM if necessary.
2.
Reduce load if it is higher than the rated capacity of the
generator. (See generator nameplate).
3.
Generator requires 2.0 HP/1000 watts output. Obtain
larger engine if necessary.
4.
Check for worn brushes and weak or broken brush springs;
replace as required. Check input AC voltage to rectifier.
Check rectifier output DC voltage to positive DC brush. If no
DC voltage is present at the brush, replace the rectifier.
Check for dirty slip rings. Clean them if they are dirty.
1.
Check engine speed for correct input RPM.
1.
Reduce tumbling bar misalignment to less than 15 degrees.
2.
Engine governor may be worn or improperly adjusted. Set or
repair defective governor.
3.
Check and tighten connections.
4.
Reassemble tumbling bar; see Figure 7.
1.
Correct misalignment. It should be less than 15 degrees.
2.
Tighten mounting nuts and bolts; repair hold-down stud
mountings.
3.
Repair or replace defective parts.
4.
Check for possible causes. Replace defective bearings.
1.
Clean ventilation and cooling fan screens.
2.
Reduce load, then check voltage and current.
3.
Replace defective components.
1.
Tighten plug.
2.
Replace seal(s), gaskets or plugs. Maintain correct oil level.
225 South Cordova Avenue
Le Center, Minnesota 56057
507-357-6831