14
Troubleshooting Chart
Symptom Possible Cause Remedial Action
Puller sleeves not moving when they
should be moving.
Bad hydraulic connections. Check ALL hydraulic couplers for debris and
proper engagement.
Pump not building pressure. Check if pressure is increasing, using:
1) mechanical pressure gauge, 2) touchscreen
HMI readout, 3) amber LED on proportional relief
valve driver.
Oil leaking from tensioner. Over stroke protection activated. Press “motor o” button on hydraulic pump
pendant. Reinstall tensioner.
Nut rotating socket will not spin. Over torqued gearbox bolts. Loosen gearbox bolts until nut rotating socket
spins.
Transducers not providing feedback. Loose cable connection. Check ALL electrical cable connections for
debris, bent pins, and proper engagement.
Puller sleeves not returning to flush with
the top cap.
Bad hydraulic connections. Check ALL hydraulic couplers for debris and
proper engagement.
Puller sleeve not returning to flush with
the top cap.
Weak return spring force. With hose assembly connected, use ratchet to
manually bring puller sleeve to flush. Replace
broken or weak return springs.
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