Product Description
Piston Lowering Cushion
Compatibility: Fits pallet jacks made by Raymond, model 7400 Reach Truck Main Lift Cylinder. SKU: RA 780-004-110
Frequently Asked Questions
Q: What is the purpose of the RA 780-004-110 piston lowering cushion?
A: The RA 780-004-110 is a piston lowering cushion that dampens and controls the descent speed of the main lift cylinder in Raymond 7400 Reach Trucks. It prevents rapid uncontrolled lowering and protects hydraulic components from shock loads.
Q: Which Raymond models and cylinders use the RA 780-004-110?
A: The RA 780-004-110 is designed specifically for the Raymond 7400 Reach Truck main lift cylinder. Verify that your equipment is a 7400 series model and that the main lift cylinder matches before ordering.
Q: How does a piston lowering cushion affect operation?
A: The RA 780-004-110 creates controlled resistance as hydraulic fluid passes through the piston chamber during lowering. This gradual deceleration provides smooth, predictable descent and extends component life by reducing impact stress on seals and cylinder ports.
Q: What maintenance is required for the RA 780-004-110?
A: The RA 780-004-110 requires no routine maintenance beyond standard hydraulic fluid level checks. Monitor for leaks around the cylinder rod seal or cushion chamber. If lowering speed becomes too fast or erratic, the internal cushion may be worn and replacement may be necessary.
Q: Can the RA 780-004-110 be replaced on older 7400 models?
A: Yes, the RA 780-004-110 is available as a replacement cushion for Raymond 7400 Reach Trucks across production years. Always verify cylinder bore diameter and rod diameter match your existing assembly before ordering.