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14 ► AL35 User Manual
PROBLEM CAUSE REMEDY
Tool does not run. Power unit not functioning. Check power unit for power ow and
pressure (7-9 gpm/26-34 lpm, 2000
psi/140 bar.
Couplers or hoses blocked. Remove restriction.
Hyrevz motor failure. Inspect and repair.
Hydraulic lines not connected. Connect lines.
No electrical output. Open circuit breaker. Reset circuit breaker.
Faulty receptacle. Replace receptacle.
Loose/broken wires. Locate and repair.
Loss of residual magnetism. Flash and Field. Refer to section in this
manual.
Short circuit in rotor led or diodes. Return to an authorized service center.
Shorted AC or exciter stator
windings.
Check with Ohmmeter. Continuity should
exist between black/white and red/red
wires. No continuity from black/white to
red wire or any wire to ground. If a short is
found, replace the stator.
Low output. Hyrevz motor speed too slow. Check for proper ow of 7‑9 gpm/26‑34
lpm.
Unbalanced or excessive load. Balance load between circuits, load should
not exceed rated capacity.
High backpressure. Check for excessive backpressure, over
250 psi/17 bar.
Couplers/hoses blocked. Locate and remove blockage.
Oil too hot/cold. Above 150°F/66°C
or below 50°F/10°C.
Check power source for proper oil
temperature. Bypass cooler to warm
oil; or provide cooler to maintain proper
temperature.
Relief valve set too low. Adjust relief valve to 2000 psi/145 bar.
Motor worn. Inspect; repair/replace.
Output too high. Motor over-speeding. Check power unit for proper ow. 7‑9
gpm/26-34 lpm.
Alternator overheats. Overloaded. Reduce electrical load; load should not
exceed rated capacity.
Air intake plugged or covered. Clear air intake.
Windings covered with dirt. Clean windings.
TROUBLESHOOTING