Troubleshooting
Electrical/Overheat
62
Problem
Battery will not charge/maintain
charge.
Possible causes:
1. Loose alternator belt.
2. Alternator fuse blown.
3. Faulty alternator diode.
4. Loose, broken or disconnect-
ed wiring at battery, alterna-
tor, diode or fuse.
5. Excessive current draw with
key in "off" position.
6. Faulty battery.
7. Faulty alternator.
Problem
Hydraulic oil temp. elevated;
hydraulic system overheating.
Possible causes:
1. Debris plugging oil cooler,
limiting airflow.
2. Low hydraulic oil level.
3. Loose or missing fan belt.
4. Damaged or missing cooling
fan blades.
5. Incompatible attachment.
a) Attachment must match
machine flow capabilities.
b) Attachment hose inside
diameter must be at least
1/2" for low flow and 3/4" for
high flow.
c) Low flow attachment cou-
pled to high flow circuit.
6. Faulty hydraulic oil tempera-
ture sending unit.
7. Faulty quick coupler.
8. Cooler bypass relief open.
Note:
Cooler bypass should
open at 80 PSI.
Problem
Engine coolant temperature
elevated; engine overheating.
Possible causes:
1. Low coolant level.
2. Debris plugging radiator, lim-
iting airflow.
3. Damaged or missing cooling
fan blades.
4. Loose or missing fan belt.
5. Faulty engine coolant tem-
perature gauge.
Summary of Contents for PT-80
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