Product Description
BRUSH SET
Frequently Asked Questions
Q: What is the AC 4913504 brush set used for?
A: The AC 4913504 is a brush set for DC motors on Allis Chalmers electric lift trucks. Brushes conduct electrical current to the motor rotor commutator and wear gradually with normal operation.
Q: What symptoms indicate the AC 4913504 brushes need replacement?
A: Brush wear causes reduced motor torque, sluggish lift or lower speed, increased noise or vibration, sparking visible at the motor, and eventual motor stall. These symptoms indicate brushes are worn below minimum length.
Q: How often does the AC 4913504 brush set require replacement?
A: Brush lifespan depends on usage intensity and duty cycle. Heavy use can wear brushes in 1-3 years. Lighter use may extend lifespan to 5+ years. Monitor performance and inspect brush length periodically.
Q: What material are the AC 4913504 brushes made from?
A: DC motor brushes are typically carbon or graphite composite material. Check the brush set specifications for exact material properties and commutator compatibility.
Q: Does the AC 4913504 brush set fit all Allis Chalmers motor types?
A: The AC 4913504 is designed for specific Allis Chalmers motor models used on electric lift trucks. Brush holder configuration, brush dimensions, and spring tension must match your motor. Verify compatibility before ordering.
Q: What causes premature brush wear in the AC 4913504?
A: Overload, poor electrical connections, commutator damage, incorrect spring tension, and misaligned brush holders all accelerate wear. Contamination and moisture accelerate corrosion of internal motor components.