Replacing the clutch plate on a Hitachi Zaxis 170W-3 or 190W-3 excavator requires some mechanical knowledge and the right tools. click here for more details on the download manual…..
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below is a step-by-step guide to help beginners understand and perform this task Safely and effectively.
### Tools and Materials Needed:
1. **Tools:**
– Wrenches (socket set and open-end)
– Screwdrivers (flat and Phillips)
– Torque wrench
– Pliers
– Jack and jack stands
– Pry bar
– Hammer
– Oil filter wrench (if applicable)
– Safety glasses and gloves
2. **Materials:**
– New clutch plate
– clutch fluid (if applicable)
– Gaskets or seals (if necessary)
### Safety Precautions:
1. **Personal Safety:**
– Wear safety glasses and gloves to protect your eyes and hands.
– Ensure the work area is well-ventilated and free from hazards.
2. **Machine Safety:**
– Park the excavator on a flat surface.
– Turn off the engine and remove the key from the ignition.
– Engage the parking brake.
– Disconnect the battery to prevent any electrical issues or accidents.
– If necessary, use a jack to lift the excavator and secure it with jack stands.
### Step-by-Step Guide:
#### 1. **Access the clutch Assembly:**
– Depending on the design of your excavator, you may need to remove various covers or panels to access the clutch assembly.
– Use the appropriate tools to unscrew and remove these components carefully.
#### 2. **Drain the clutch Fluid (if applicable):**
– If your excavator uses hydraulic fluid for the clutch, locate the drain plug on the clutch housing.
– Place a container beneath the plug to catch the fluid, then unscrew the drain plug to allow the fluid to fully drain.
#### 3. **Remove the Old clutch Plate:**
– Locate the clutch housing. You may need to remove additional components, such as the bell housing, to access the clutch plate.
– Using the appropriate wrenches, unscrew and remove the bolts securing the clutch assembly.
– Carefully pull the clutch plate out of the housing. You may need to use a pry bar if it is stuck.
#### 4. **Inspect Other Components:**
– Before installing the new clutch plate, inspect the pressure plate, flywheel, and other related components for wear or damage. If they are damaged, they may also need to be replaced.
#### 5. **Install the New clutch Plate:**
– Place the new clutch plate into the housing, making sure it is aligned correctly. There may be alignment pins or markings to guide you.
– Reattach the pressure plate and ensure it is seated properly against the clutch plate.
– Secure the assembly with the bolts you removed earlier. Use a torque wrench to tighten them to the manufacturer’s specified torque settings.
#### 6. **Reassemble the clutch Housing:**
– If you removed any additional components (like the bell housing), reinstall them in the reverse order of removal.
– Ensure that all clutch Fluid (if applicable):**
– Replace the drain plug and refill the clutch fluid through the designated fill port. Use the recommended type of fluid and fill it to the proper level.
#### 8. **Reconnect the Battery:**
– Reconnect the battery terminals, ensuring they are tight and secure.
#### 9. **Test the System:**
– start the excavator and allow it to warm up.
– Test the clutch engagement and disengagement by operating the machine in a safe area.
– Check for any leaks around the clutch area and ensure everything is functioning smoothly.
### Conclusion:
Replacing the clutch plate on a Hitachi Zaxis 170W-3 or 190W-3 excavator involves careful disassembly, inspection, and reassembly. Always refer to the machine’s service manual for specific instructions and torque specifications. If at any point you’re unsure, it’s best to consult with a professional mechanic or technician. Safety should always be your top priority when working on heavy machinery.
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