Product Description
BACK-UP RING
Compatibility: Fits pallet jacks made by Multiton, model 6600. SKU: MU 0745908
Frequently Asked Questions
Q: What is the MU 0745908 back-up ring used for?
A: The MU 0745908 is a back-up ring component for Multiton model 6600 pallet jacks. Back-up rings support primary seals in hydraulic systems by preventing extrusion into the clearance gap between mating surfaces. This protects seal integrity and maintains hydraulic pressure.
Q: Is the MU 0745908 compatible with other Multiton models?
A: The MU 0745908 is specifically designed for Multiton model 6600 pallet jacks. Do not use this back-up ring on other Multiton models unless your jack documentation explicitly authorizes cross-compatibility. Using the wrong component may result in seal failure or hydraulic leakage.
Q: How do you know when a back-up ring needs replacement?
A: Replace the back-up ring if you observe hydraulic fluid leaking from cylinder or piston rod seals, reduced lifting capacity, or jerky jack operation. These symptoms indicate seal compromise, often caused by back-up ring wear or failure. Always replace back-up rings and primary seals together for best results.