Hydraulic Drive System - Graco Reactor H-25 Series Repair And Parts Manual

Troubleshooting

Hydraulic Drive System

Before performing any troubleshooting procedures:
1. Relieve pressure, page 26.
PROBLEM
Electric motor will not start or stops
during operation.
20
2. Turn main power OFF
3. Allow equipment to cool.
Problems
Try the recommended solutions in the order given for
each problem, to avoid unnecessary repairs. Also,
determine that all circuit breakers, switches, and
controls are properly set and wiring is correct before
assuming there is a problem.
CAUSE
Loose connections.
Circuit breaker tripped.
Damaged motor control board.
.
SOLUTION
Check connections at motor control
board.
Reset breaker (813); see Circuit
Breaker Module, page 29. Check
230 Vac at output of breaker.
Replace board. See Motor Control
Board, page 31.
312063Z