Product Description
Brush holder
Specifications
Product Overview
| Part Number | 00591-04858-81 |
| Product Type | Motor Brush Holder Assembly |
Physical Specifications
| Function | Houses motor brushes for electrical conductivity to armature |
| Typical Lifespan | 18-36 months (usage dependent) |
Compatibility
| Application | Electric Lift Trucks, Electric Pallet Jacks |
| Replacement Indicator | Motor stalling, excessive sparking, control unresponsiveness, visible brush wear below 0.25 inches |
Frequently Asked Questions
Q: What is the 00591-04858-81 brush holder used for?
A: The 00591-04858-81 is a brush holder assembly for electric lift trucks and pallet jacks. It houses motor brushes that conduct electrical current to the rotating armature. Brush holders are critical components for motor function and must be installed correctly to prevent electrical arcing and motor damage.
Q: Which electric lift truck models use the 00591-04858-81 brush holder?
A: The 00591-04858-81 is compatible with Toyota and similar OEM electric lift truck models. Motor brush holders are model-specific. Verify your truck make, model, and motor part number before ordering to ensure correct fitment and electrical compatibility.
Q: What are the symptoms of a failed 00591-04858-81 brush holder?
A: Replace the brush holder if the motor intermittently stalls, produces excessive sparking visible through ventilation ports, or fails to respond to directional controls. Burned or melted plastic on the holder indicates overheating and imminent motor failure. Do not operate the truck if electrical issues are present.
Q: How do I replace the 00591-04858-81 brush holder?
A: Disconnect the truck battery. Remove the motor cover or disconnect motor terminals according to your service manual. Note the brush wire connections before removal. Extract the old brush holder, insert the new 00591-04858-81, reconnect wires to matching terminals, and reinstall the motor cover. Test motor function before operating.
Q: What is the lifespan of the 00591-04858-81 brush holder assembly?
A: Motor brush holders typically last 18-36 months depending on usage intensity and duty cycle. Heavy-use trucks may need replacement sooner. Inspect the assembly annually for carbon buildup, corrosion, or brush wear. Replace if brushes are worn below 0.25 inches or if the holder shows cracking or discoloration.