Product Description
Brush set (4)
Frequently Asked Questions
Q: What is CT 973391 and why does my lift truck need brush sets?
A: CT 973391 is a 4-piece brush set for electric motors in Caterpillar lift trucks. Brushes conduct electrical current to the motor rotor and wear during normal operation. Replacing worn brushes restores motor performance and prevents damage to the commutator.
Q: Which Caterpillar lift truck motors use CT 973391 brush sets?
A: CT 973391 is designed for specific Caterpillar lift truck motor models. Provide your truck model number and motor type to confirm this brush set matches. Motor brush configurations vary by motor manufacturer and power rating.
Q: What material are the brushes in CT 973391 made from?
A: Caterpillar lift truck brushes are typically carbon or carbon-graphite composite materials rated for high-speed motor operation. Contact us with your specific motor model for exact brush material and composition. Material choice affects brush life and motor performance.
Q: How often should I replace the brush set CT 973391?
A: Brush life depends on motor run hours, load intensity, and ambient conditions. Heavy use in hot environments accelerates brush wear. Replace CT 973391 when motor performance drops, sparking occurs at the commutator, or brushes are visibly worn below manufacturer height specifications.
Q: What symptoms indicate worn brushes that need replacement?
A: Replace CT 973391 if you notice reduced lift or drive motor speed, sparking visible at the motor terminals or commutator area, irregular motor operation, or audible noise from the motor. Continued operation with severely worn brushes damages the commutator and requires motor replacement.