Product Description
Brush Spring Set
Frequently Asked Questions
Q: What is included in the BA 94MBY1 brush spring set?
A: The BA 94MBY1 is a brush spring set for electric lift truck traction motors. The set includes all springs required to maintain tension on motor brushes against the commutator. Springs are pre-assembled as a kit to ensure correct fitment and performance.
Q: What electric lift trucks use this brush spring set?
A: The BA 94MBY1 is OEM for Baker electric lift trucks and compatible with similar equipment from other manufacturers using the same motor frame size. Verify your equipment model and motor part number before ordering.
Q: What happens when brush springs wear out?
A: Worn springs reduce brush pressure against the commutator, causing poor electrical contact, intermittent power delivery, and increased sparking. This leads to reduced traction, erratic movement, brush overheating, and accelerated brush wear.
Q: What is the typical lifespan of motor brush springs?
A: Brush springs typically last 8 to 12 years in moderate-duty electric lift trucks. Heavy-use warehouses with continuous cycling may require replacement every 5 to 7 years. Springs lose elastic tension over time and cannot be re-tensioned; replacement is the only remedy.
Q: What material are the springs made from?
A: The BA 94MBY1 springs are manufactured from carbon or alloy steel with appropriate hardness and fatigue resistance for cyclic motor operation. The material is selected to maintain consistent tension over years of thermal cycling and vibration.
Q: What symptoms indicate the brush springs need replacement?
A: Signs include loss of traction power, jerky acceleration or deceleration, increased motor noise or sparking, burnt brush odor, or inconsistent drive response. Visual inspection of the motor brushes will show uneven wear or glazing if spring pressure is inadequate.