MU 38977

Frequently Asked Questions

Q: What is the MU 38977 spring cap and what does it do?
A: The MU 38977 is a precision-machined spring cap made of case-hardened steel. It retains the main compression spring within the hydraulic pump unit and is a critical OEM component for proper pump function in Multiton pallet jacks.

Q: Which Multiton models are compatible with the MU 38977 spring cap?
A: The MU 38977 fits Multiton TM, M, J, and S series manual pallet jacks. This part is designed for direct interchange in original Multiton equipment. Verify your model before ordering.

Q: What material is the MU 38977 made from and why?
A: The MU 38977 is precision-machined from case-hardened steel with a minimum Rockwell C38 hardness rating. This material provides strength under the load and pressure of the pump spring, and resists deformation during hydraulic operation. It is finished with an oil-coated surface for corrosion protection.

Q: What indicates the MU 38977 spring cap needs replacement?
A: Replace the spring cap if you observe spring preload loss, loss of pump pressure, visibly cracked or deformed cap, corrosion damage, or metal particles in the hydraulic fluid. A damaged cap can compromise pump performance and safety.

Q: Are there equivalent or cross-reference part numbers for the MU 38977?
A: The MU 38977 is the OEM Multiton part number. No equivalent part numbers from other manufacturers have been identified in approved sources. Use the exact Multiton part number for replacement to ensure proper fit and function.

Q: How should the MU 38977 spring cap be maintained?
A: Keep the cap clean and free of debris. Monitor for corrosion and ensure the oil coating remains intact. During routine hydraulic fluid service, inspect the cap for damage or wear. Replace if any defects are found to prevent pump failure.