Spindle rapid advances beyond setting of advance rapid travel length adjustment.
|
Probable Cause |
Check |
Remedy |
| Seal on hydraulic piston in cylinder assembly is worn or broken. | Complete lack of control of spindle travel. | Replace piston seal. Ref. Cylinder Assy. Bul. |
| Hydraulic piston section retaining ring in cylinder assembly loose or broken. | Complete lack of control of spindle travel, oil leaks into drive shaft area. | Replace - Ref. Cylinder Assembly Bul. |
| Advance plunger assembly in manifold sticks due to defective "O" rings. | Plunger movement should follow lever movement. | Replace "O" ring or complete assembly. Ref. Manifold Assembly Bul. |
| Oil too heavy in hydraulic system. | 150-200 S.U.S. at 100°F hydraulic oil recommended. | Drain and refill. |
| Dirt in advance plunger valve assembly in manifold. | Remove and inspect valve for dirt. | Clean and reinstall. Ref. Manifold Assembly Bul. |
