Introduction:
Ensuring the proper installation of a forklift wheel cylinder is vital for optimal performance and safety. In this guide, we’ll walk you through the installation process and highlight key steps to follow. Additionally, we’ll provide insights into the inspection of the wheel cylinder to maintain your forklift’s reliability.

Installation Method:

Compatibility Check:
Before installation, confirm the compatibility of the new wheel cylinder with the old one. Measure the empty depth of the piston rod in the front cavity, ensuring it matches the old part, especially for cylinders with a booster.

Precision Installation:
Gently install the pushrod into the piston groove, paying attention to the coaxiality between the forklift piston and the pushrod.

Adjustment and Fluid Addition:
Adjust the clearance between the brake pad and the drum, master cylinder stroke, and wheel cylinder stroke. Add the appropriate amount of brake fluid to the oil cup.

Air Exhaust:
Have the forklift driver step on the brake plate multiple times, expelling air from the bleed screws of the master cylinder and wheel cylinder until no bubbles emerge. For master pumps without bleed screws, exhaust air at the wheel cylinder.

Brake Fluid Replacement:
Drain the original brake fluid completely after replacing the wheel cylinder. Replace it with newly qualified brake fluid of the exact specification, avoiding mixing different brands to prevent damage.

Brake Oil Addition and Testing:
Add the appropriate amount of brake oil to the forklift, step on the brake plate about 2/3 of the stroke, and test the master cylinder’s cavity filling. Adjust the wheel cylinder accordingly.

Final Checks:
Ensure specifications of the brake oil pipe joint and drain screw are consistent. Check the tightness of the wheel cylinder and oil inlet pipe joint before allowing the forklift operation.

Inspection of the Wheel Cylinder:

Standard Inspection:
Conduct a thorough inspection similar to the master cylinder. The inner diameters of both wheel cylinders on the same forklift wheel should be identical.

Spring Length Check:
Check the free length of the spring in the forklift sub-cylinder (42mm). Under 24.5-34.3N pressure, the compressed length should not be shorter than 17mm.

Replacement Criteria:
If the spring does not meet specifications, replace it directly. After installation, perform a pressure test alongside the master cylinder, checking the oil inlet pipe’s tightness with no signs of leakage.

Conclusion:
Following these installation and inspection guidelines will help you maintain a reliable forklift, ensuring safety and optimal performance during operation. Regular checks and adherence to proper procedures are key to extending the life of your forklift’s wheel cylinder.