Product Description
Brush set
Frequently Asked Questions
Q: What is the HY 3007721 brush set used for?
A: The HY 3007721 is a brush set for Hyster electric lift trucks and pallet jacks. Motor brushes transfer electrical current to the rotor and wear during normal operation, requiring periodic replacement to maintain motor performance.
Q: Which Hyster electric lift truck models are compatible with the HY 3007721 brush set?
A: The HY 3007721 is designed for specific Hyster electric pallet jack and electric lift truck models. Confirm your equipment model and motor specification match before ordering, as brush sets are motor-specific.
Q: What symptoms indicate worn motor brushes?
A: Worn brushes cause reduced lifting speed, intermittent motor operation, increased electrical noise or arcing, difficulty starting under load, or complete motor failure. Early replacement prevents damage to the commutator and motor windings.
Q: How long do motor brushes typically last on electric lift equipment?
A: Brush lifespan depends on usage intensity and load cycles. Under normal industrial use, brushes typically last 1000 to 3000 operating hours. High-cycle operations or continuous duty shorten this interval significantly.
Q: Why is brush replacement important for equipment reliability?
A: Worn brushes increase electrical resistance and heat, reducing motor efficiency and causing commutator damage. Timely replacement prevents costly motor failure, extends equipment life, and maintains consistent lift and lower performance.