Product Description
WHEEL CYLINDER
Specifications
Part Numbers & Compatibility
| Make | Komatsu, Allis Chalmers |
| Model | FD20T-11, FG30T-12, FB30EX-8, FD20-12, FD25-12, FD28-12, FG20-12, FG25-12, FG30-14, FG30S-3 |
| Part Number | 34B-30-15311 |
| Application | Electric Lift Trucks, Forklifts, Load Centers |
Additional Specifications
| Component Type | Wheel Brake Cylinder |
| Body Material | Cast Iron or Ductile Iron |
| Piston Material | Hardened Steel |
| Rod Material | Chrome-Plated Steel |
| Internal Seals | Nitrile or Viton Rubber |
| Typical Service Life | 3-5 Years with Proper Maintenance |
| Port Configuration | Dual Port Design for Hydraulic In/Return |
| Condition | Direct Replacement |
| Compatible Fluid | Mineral Oil, Synthetic Brake Fluid |
Frequently Asked Questions
Q: What electric lift truck equipment does part number 34B-30-15311 fit?
A: Part number 34B-30-15311 is compatible with electric lift trucks from Komatsu and Allis-Chalmers. It fits models including FD20T-11, FG30T-12, FB30EX-8, FD20-12, FD25-12, FD28-12, FG20-12, FG25-12, FG30-14, and FG30S-3. Confirm your equipment model and brake system specifications match before purchase.
Q: What material composition does this part have?
A: This part is constructed from durable materials designed for long-term use in electric lift truck brake systems. The cylinder body is made of cast iron or ductile iron, with hardened steel pistons and chrome-plated rod. Internal seals are made of nitrile or Viton rubber, formulated for compatibility with mineral oil and synthetic brake fluids.
Q: What are the failure symptoms that indicate this part requires replacement?
A: Replace this part if brake fluid leaks from the rod seal area, the brake pedal feels spongy or travels too far, brake application is uneven or delayed, or visible corrosion and pitting are present on the bore. These conditions require immediate replacement to restore safe braking.
Q: What equivalent part numbers cross-reference to part number 34B-30-15311?
A: Cross-reference availability depends on your equipment make and system design. Supply your lift truck model number, serial number, and original manufacturer to locate equivalent parts from major suppliers compatible with your brake system.