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The Orbitrol steering unit in tractors and forklifts is responsible for converting hydraulic oil pressure and flow into mechanical movement of the steering shaft. This unit is typically high-pressure, double-acting, and capable of handling operating pressures between 180 and 260 bar. Its internal design includes pistons, springs, valves, and precisely machined housings with tolerances below 0.05 millimeters, allowing accurate oil flow control and precise steering shaft movement. Selecting the appropriate unit and maintaining the specified flow and pressure for each tractor or forklift model is crucial to prevent vibration and premature component wear.
The mounting location of the Orbitrol steering valve is usually on the hydraulic pump outlet path, near the input shaft of the steering unit. This position allows the valve to receive direct hydraulic pressure and transmit force accurately to the steering cylinders. Pressure and return lines are connected with high-pressure O-rings and flange couplings to prevent leakage and flow reduction. Improper alignment or installation can cause increased steering shaft vibration and reduced lifespan of hydraulic components.
The repair process for the Orbitrol steering unit involves disassembling the assembly, thoroughly cleaning all components, inspecting pistons, springs, and valves, and measuring tolerances with a digital micrometer. If wear exceeds 0.05 millimeters or O-rings are damaged, parts must be replaced. After reassembly, the unit should be tested on a hydraulic bench at 240 bar and factory-specified flow to ensure correct pressure and leak-free operation. This process guarantees that the tractor or forklift steering performs reliably and safely under demanding working conditions.
WEBSITE: forklift orbitrol steering unit repair Iran
