MU 19749

Frequently Asked Questions

Q: What is the MU 19749 spring used for?
A: The MU 19749 is a compression or return spring in Multiton model 6600 pallet jack hydraulic assemblies. It restores neutral position in pump controls or foot pedal assemblies and maintains proper load on control valves.

Q: Which Multiton models use the MU 19749?
A: The MU 19749 is designed for Multiton model 6600 manual pallet jacks. Verify your pallet jack model and serial number to confirm compatibility before ordering.

Q: What are signs of spring failure in the MU 19749 application?
A: Loss of pedal return, difficulty returning pump to neutral, control that stays in raised position, or visible spring deformation indicate failure. Fatigue cracking or permanent set can result from repetitive cycling or overload.

Q: What material is the MU 19749 constructed from?
A: The MU 19749 is fabricated from alloy steel spring stock, typically oil-tempered for fatigue resistance in cyclic loading. The exact spring constant and free length must match OEM specifications for proper foot control feel and function.

Q: How long does the MU 19749 spring typically last?
A: Under normal operating conditions with regular maintenance, springs can last the life of the pallet jack. However, extended periods of high-use or storage in high-temperature conditions can reduce service life. Inspect springs visually for cracks during routine maintenance.

Q: Can I use a generic replacement spring instead of MU 19749?
A: Generic springs may differ in load rating, free length, or material composition, causing improper foot control function or premature failure. The MU 19749 is engineered for the model 6600 control system. Use only the OEM part number for reliability.