Hydraulic torque wrench (hydraulic torque wrench) consists of manual high pressure pump and a ratchet wheel type hydraulic torque wrench. Manual manipulation of high-pressure pump handle, hydraulic cylinder to generate thrust, form the moment by crank system, drive a nut rotation Angle, make the torque to the hex socket with ratchet device, where it is passed to the bolt connection, preloaded bolt as required.

    The manual high-pressure pump consists of a control handle, a high pressure pump, a reversing valve, a fuel tank, a pressure gauge and a pipeline with a quick joint. A ratchet type hydraulic wrench consists of a high-pressure oil port, a hydraulic cylinder, a crank, a counterforce rod, a ratchet device, a sleeve, etc. The former is a power source component, and the latter is a torque actuator.

    Matters needing attention

    1. The connecting hose shall be in a free state and shall not be set into a circle less than 500mm in diameter.

    2. Apply grease to each connection pin shaft and movable part of the hydraulic wrench, reduce the torque loss due to friction.

    3. The hydraulic system shall not be correctly handled when working.

    4. After unloading the quick connector, the exposed part of the joint must be covered with plastic cover.

    5. Normal hydraulic oil is used for working oil, and its brand name is yb-n32 # hydraulic oil. The working oil in the system must be replaced and cleaned every year..