Product Description
LOCKWASHER
Frequently Asked Questions
Q: What is SKU 78668-40090-71?
A: SKU 78668-40090-71 is a lockwasher component engineered for manual pallet jack assemblies. This part prevents fastener loosening on bolted connections subject to vibration and operational stress.
Q: What is the primary function of this lockwasher in pallet jack equipment?
A: The lockwasher maintains bolt tension and prevents vibration-induced loosening of critical fasteners. This function is essential for maintaining structural integrity and safe operation of manual pallet jacks.
Q: Which manual pallet jack models does part 78668-40090-71 fit?
A: This OEM lockwasher is designed for manual pallet jacks from major manufacturers. Verify your equipment OEM part specification before ordering to confirm compatibility and correct fastener size.
Q: What should I do if fasteners continue to loosen despite using this lockwasher?
A: Verify the lockwasher is correctly positioned between the fastener and mounting surface. Check bolt preload and tightness. If loosening persists, inspect for damaged threads, bent bolts, or cracked mounting points that require repair or replacement.