Product Description
Brush holder
Specifications
Product Overview
| Part Number | 991548 |
| Product Type | Electric Motor Brush Holder Assembly |
Physical Specifications
| Material | Phenolic composite with copper electrical contacts |
| Brush Type | Carbon brush compatible |
| Inspection Interval | During routine motor maintenance or brush replacement cycles |
| Key Failure Indicators | Intermittent motor function, stalling, visible arcing, poor electrical contact |
| Field Repair | Not repairable; replace if damaged or cracked |
Compatibility
| Compatible Voltage | 24V, 36V, 48V DC (universal application) |
| Application | Electric pallet jacks, electric forklifts, reach trucks, order pickers |
Frequently Asked Questions
Q: What electric lift truck brands use the 991548 brush holder?
A: The 991548 brush holder is compatible with electric lift trucks from major manufacturers including Crown, Toyota Industrial Equipment, Raymond, Yale, Hyster, Jungheinrich, and Linde. Verify your equipment model and motor type to confirm compatibility.
Q: What is the purpose of the brush holder in electric lift equipment?
A: The brush holder secures and positions the carbon brushes against the commutator inside the electric motor. It ensures proper brush contact for motor performance and electrical conductivity during lift and lower operations.
Q: How often should the 991548 brush holder be inspected?
A: Inspect the brush holder during routine motor maintenance or when replacing brushes. Check for loose fasteners, cracked holders, carbon dust accumulation, or worn brush contacts. High-duty or cold storage equipment requires more frequent inspection.
Q: What are failure symptoms for the brush holder?
A: Failure indicators include intermittent or weak lift function, motor stalling, poor electrical contact, visible arcing, or complete motor failure. A damaged holder allows brushes to lose contact with the commutator, disabling the motor.
Q: Can the 991548 brush holder be repaired or must it be replaced?
A: Brush holders are not repaired in the field. If cracked, stripped, or damaged, the 991548 must be replaced. Worn brush contacts may be cleaned but only if the holder structure is intact and fasteners are secure.
Q: Are there cross-reference part numbers for the 991548?
A: Check your equipment documentation or motor serial number for equivalent OEM brush holder part numbers. Confirm motor voltage, amperage rating, and brush type match before substituting with alternative parts.