Product Description
Brush Set
Specifications
Product Overview
| Product Type | Motor Brush Set |
| Manufacturer | Toyota |
| Part Number | 00591-31777-81 |
| Category | Electrical Components - Motor Parts |
Physical Specifications
| Material Composition | Carbon-Graphite Composite |
| Function | Electrical current conduction to motor commutator |
| Typical Service Life | 2-4 years (moderate use); varies with usage intensity |
Compatibility
| Application | Electric Lift Truck Motors |
| Replacement Indicator | 5-6mm or less brush length remaining |
Frequently Asked Questions
Q: What components are included in the TO 00591-31777-81 brush set?
A: The TO 00591-31777-81 is a brush set for Toyota electric lift truck motors. This kit includes replacement brushes, which are wear items that conduct electrical current to the commutator. The set contains the quantity and brush specifications required for your specific motor assembly.
Q: Which Toyota electric lift truck models use this brush set?
A: The TO 00591-31777-81 brush set is designed for specific Toyota electric lift truck motor configurations. Verify your truck model and motor part number before ordering. Using incorrect brushes can result in poor motor performance, excessive wear, or electrical damage.
Q: What symptoms indicate that brushes need replacement?
A: Replace brushes when you observe: reduced motor power or sluggish lift response, visible sparking at the motor terminals, excessive brush dust accumulation inside the motor, burned commutator surface, or if brushes reach their wear limit (typically 5-6mm remaining length or less).
Q: What is the typical service life for these brushes?
A: Brush lifespan depends on motor usage intensity and electrical load. In moderate industrial applications, brushes typically last 2 to 4 years before wear becomes significant. Heavy-duty or continuous-cycle operations reduce service life. Regular inspection identifies wear early and prevents motor damage.
Q: Are there equivalent or cross-reference part numbers for the TO 00591-31777-81?
A: The TO 00591-31777-81 is a Toyota OEM part number. Equivalent brushes from other brands may exist, but always verify that brush composition, size, and electrical rating match your specific motor. Mismatched brushes cause poor performance and accelerated commutator wear.
Q: What material are these brushes made from?
A: Motor brushes are typically composed of carbon or carbon-graphite composite materials that conduct electricity while resisting wear from commutator friction. These materials balance electrical conductivity, mechanical durability, and commutator surface protection during normal motor operation.