**Transmission Fluid Pressure Test on a Komatsu PW170-5K Wheeled Excavator** – **Safety Precautions** – Ensure the excavator is parked on a level surface and the engine is off. click here for more details on the download manual…..
- Komatsu PW170 review and walk around 352 Rick Sanchez www.tractortip.com.
**Transmission Fluid Pressure Test on a Komatsu PW170-5K Wheeled Excavator**
– **Safety Precautions**
– Ensure the excavator is parked on a level surface and the engine is off.
– Engage the parking brake and chock the wheels to prevent any movement.
– Wear appropriate personal protective equipment (PPE), including gloves and safety glasses.
– **Gather Required Tools and Equipment**
– **Transmission Pressure Gauge**: A hydraulic pressure gauge capable of measuring the specific range of fluid pressure (typically in psi or bar) relevant to the transmission system.
– **Pressure Test Adaptor**: An adaptor fitting compatible with the transmission fluid pressure port. This allows for the connection of the pressure gauge to the transmission system.
– **Wrenches and Socket Set**: For removing and tightening fittings and connections. Ensure you have the correct sizes to avoid damaging components.
– **Shop Towels and Clean Rags**: To clean up any spilled fluid and to keep the work area tidy.
– **Container for Fluid**: To catch any transmission fluid that may spill during the process.
– **Locate the Transmission Fluid Pressure Port**
– Refer to the service manual for the specific location of the pressure test port on the transmission.
– Typically, this port is located on the transmission case and may be covered by a protective cap or plug.
– **Prepare the Excavator for Testing**
– Start the engine and allow it to reach operating temperature. This is important, as transmission fluid expands and its properties change when warmed up.
– Cycle through the transmission gear ranges (forward, neutral, reverse) to ensure fluid is properly circulating.
– **Install the Pressure Gauge**
– Carefully remove the cap or plug from the pressure test port using the appropriate wrench.
– Install the pressure test adaptor into the port, ensuring it is secure and properly aligned.
– Attach the transmission pressure gauge to the adaptor, ensuring that all connections are tight to prevent leaks.
– **Conduct the Pressure Test**
– Start the engine again if it was turned off during the installation process.
– With the excavator running, shift through the various transmission ranges while observing the pressure gauge.
– Record the pressure readings for each gear range according to the specifications provided in the service manual.
– Observe whether the pressure stabilizes within the manufacturer-specified range.
– **Analyze the Results**
– Compare the recorded pressure readings with the acceptable pressure ranges specified in the service manual.
– Identify any abnormalities such as low pressure, which may indicate issues with the transmission pump, clogged filters, or internal leaks.
– High-pressure readings may indicate blockages or other mechanical problems.
– **Shutdown
and Remove Equipment**
– Turn off the engine and allow the system to cool before proceeding.
– Carefully disconnect the pressure gauge and adaptor from the pressure test port.
– Replace the cap or plug securely on the pressure test port to prevent fluid leaks.
– **Clean work Area**
– Wipe down any spilled transmission fluid using shop towels and dispose of any waste fluid in accordance with local environmental regulations.
– Store all tools and equipment properly for future use.
– **Document Findings**
– Make notes of the pressure readings and any observations during the test.
– If any issues were detected, plan for further diagnostics or repairs as needed based on the findings.
By following these detailed steps, you can effectively perform a transmission fluid pressure test on a Komatsu PW170-5K wheeled excavator. Always refer to the manufacturer’s service manual for specific procedures and specifications to ensure accuracy and safety.
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