Product Description
Master cylinder
Frequently Asked Questions
Q: What forklift brands and models use the 00591-02103-81 master cylinder?
A: This master cylinder is compatible with forklifts from Crown, Toyota, Raymond, Hyster, and other major manufacturers. Confirm your forklift model year, gross vehicle weight rating, and brake system type before ordering.
Q: What is the bore diameter and displacement of this master cylinder?
A: Specifications depend on your forklift load capacity and brake configuration. Contact us with your forklift model for exact bore diameter, rod length, piston area, and fluid displacement volume.
Q: What are the signs of a failed master cylinder?
A: Warning signs include soft or spongy brake pedal, loss of braking power, brake fluid leaks under the dash or at the firewall, or brake fluid appearing in the reservoir. Any of these requires immediate replacement.
Q: Does the replacement require bleeding the brake system?
A: Yes. After installing the new master cylinder, the brake system must be bled to remove air bubbles. This process typically takes 20 to 30 minutes and is essential for safe braking performance.
Q: Can I rebuild or repair the old master cylinder instead of replacing it?
A: Some master cylinders can be rebuilt with seal kits, but replacement is recommended for safety-critical brake components. Rebuilding extends cost and labor time without the reliability of a new unit.
Q: What fluid type should I use in this master cylinder?
A: Use only DOT 3 or DOT 4 brake fluid as specified in your forklift service manual. Do not mix fluid types and never use mineral oil or automatic transmission fluid, which will damage seals and cause brake failure.