TO 00590-04567-71

Frequently Asked Questions

Q: What material are the brushes in the TO 00590-04567-71 set?
A: The TO 00590-04567-71 contains four carbon-graphite brushes of industrial grade. Carbon-graphite provides good electrical conductivity, low contact resistance, and durability for continuous current transfer in DC motors used in electric material handling equipment.

Q: How many brushes are in the TO 00590-04567-71 set and why?
A: This set includes four brushes, which is standard for a 2-pole DC motor with two brush stations. Two brushes contact the commutator simultaneously (one positive, one negative), and the set includes spares to allow matched pairs when replacement is needed.

Q: Which Toyota electric forklift models use the TO 00590-04567-71 brush set?
A: This brush set is designed for Toyota electric drive motors in select lift truck models. Cross-reference your equipment model, motor serial number, and OEM parts manual to confirm compatibility. Different Toyota generations use different motor types and brush profiles.

Q: What is the typical service life for these brushes?
A: Brush life in industrial lift truck applications is typically 2 to 4 years, depending on duty cycle intensity, motor speed profile, and electrical load. Warning signs of worn brushes include reduced motor power, increased motor noise, sparking at the commutator, or visible brush length reduction below 5mm.

Q: How do you know when brush replacement is needed?
A: Monitor for gradual loss of lift speed or hoist capacity, increased motor noise or vibration, visible carbon dust or black residue around the motor, or inspection showing brushes worn down below minimum length (typically 5 to 7mm). Replace the full set of four brushes at the same time to maintain balanced motor performance.