Unit does not cycle PDF Print E-mail

Probable Cause



No or low hydraulic supply pressure. Hydraulic supply not turned on. Correct. Regulate for proper pressure - 300 to 500 psi.
Electrical and hydraulic connections. Correct.
Directional valve at hydraulic pump does not actuate. Check "O" rings in valve for swelling or sticking. Replace and lubricate.
Hydraulic supply leaks. Check for leaks around fittings. Tighten or replace.
No electric power to control circuit. Make sure electric system is on. Check fuses. (Solenoid valve action is audible.) Correct.
Switches not being actuated. Levers and cam bars for proper adjustment. Readjust - Ref. Eng. Data Bul., Cam Bar Bul and Lever Assy. Bul.
Feed rate adjustments at manifold closed. Make sure feed rate adjustments are open 4 or 5 turns. Adjust - Ref. Eng. Data Bul.