Product Description
Jam Nut
Frequently Asked Questions
Q: What is a jam nut and what does it do on a Big Joe electric pallet truck?
A: A jam nut is a secondary locking nut used on Big Joe electric lift trucks to prevent primary fasteners from loosening due to vibration during operation. It works by being threaded tightly against the primary nut to create friction that resists self-loosening.
Q: Where is the BJ 059540 jam nut typically used on electric lift trucks?
A: Jam nuts like the BJ 059540 are commonly used on load wheel assemblies, steering mechanisms, and frame attachment points where fastener security is critical to safe operation and load handling.
Q: How often should jam nuts be replaced on Big Joe equipment?
A: Jam nuts do not have a fixed service life but should be inspected regularly during routine maintenance. Replace any jam nut that shows visible damage, cracking, or if the primary fastener rotates freely without resistance, indicating loss of locking function.
