Hello there! click here for more details on the download manual…..
- Deutz f2l511d Motor Dieselmotor
- PC 128 KOMATSU REVIEW
I’m Sunny, your friendly neighborhood mechanic, and today we’re going to delve into the detailed process of replacing the strut mount on a Komatsu PC128UU-2 excavator. This task, while it may seem straightforward, requires a good understanding of the components involved, the tools needed, and the steps to ensure the job is done safely and effectively. So, let’s roll up our sleeves and get started!
### Tools and Equipment You’ll Need:
1. **Safety Gear**: Before we begin, it’s crucial to equip yourself with appropriate safety gear. This includes safety goggles to protect your eyes from debris, gloves to protect your hands, and steel-toed boots for foot protection.
2. **Socket Set**: A comprehensive socket set, including both metric and standard sizes, will be essential. The most commonly used sizes for the strut mount replacement will typically include 10mm, 12mm, and 14mm sockets.
3. **Torque Wrench**: This tool is vital for ensuring that all bolts are tightened to the manufacturer’s specified torque settings. Failing to do this can result in over-tightened or loose components, which can lead to failure.
4. **Pry Bar**: A pry bar will help in loosening stubborn mounts and repositioning components during installation.
5. **Jack and Jack Stands**: You’ll need a hydraulic jack to lift the excavator and, of course, jack stands to safely support it while you work underneath.
6. **Impact Wrench**: For removing stubborn bolts quickly, an impact wrench can save you a lot of time and effort.
7. **Wrench Set**: A set of combination wrenches will be useful for any bolts that are difficult to reach with a socket.
8. **Shop Manual**: Having the service manual for the Komatsu PC128UU-2 will provide you with specific torque specifications and diagrams, which is indispensable for this job.
9. **Cleaning Supplies**: Get some rags, a brush, and some degreaser to clean any dirty components while you’re working.
### Step-by-Step Procedure:
#### Step 1: Safety First
Before you start working on the machine, ensure that it is parked on a flat, level surface. Engage the parking brake and turn off the ignition. Once that’s done, disconnect the battery to prevent any accidental starts.
#### Step 2: Raise the Excavator
Using your hydraulic jack, lift the excavator safely. Place jack stands under the appropriate frame sections to support the weight of the machine securely. It’s critical to ensure that the excavator is stable before you begin working underneath it.
#### Step 3: Remove the Front Wheels (if applicable)
Depending on the specific design of the Komatsu PC128UU-2, you may need to remove the front wheels to access the strut mounts. Use your impact wrench or socket set to remove the lug nuts and take off the wheels.
#### Step 4: Locate the Strut Mounts
The strut mounts are typically located at the top of the strut assembly, connecting the strut to the vehicle body. You may need to remove some panels or covers to access them fully.
#### Step 5: Detach the Strut Assembly
Using your socket set, remove the bolts securing the strut assembly to the strut mount. You may need to support the strut with a jack or a stand as you remove these bolts to prevent it from falling unexpectedly.
#### Step 6: Remove the Old Strut Mount
Once the strut assembly is free, you can remove the strut mount itself. This is typically held in place by a few bolts. Use your socket set or wrenches to remove these bolts. If the mount is stuck, a gentle tap with a hammer or a pry bar can help free it.
#### Step 7: Install the New Strut Mount
Take your new strut mount
and align it in the same position as the old one. Secure it in place with the bolts you removed earlier. Remember to use your torque wrench here to tighten the bolts to the manufacturer’s specified torque settings, ensuring everything is secure without being over-tightened.
#### Step 8: Reattach the Strut Assembly
Now that the new strut mount is in place, carefully raise the strut assembly back into position. Reattach it to the vehicle body using the bolts you previously removed. Again, use your torque wrench to ensure they are tightened properly.
#### Step 9: Reassemble the Excavator
If you removed the front wheels, now is the time to put them back on. Hand-tighten the lug nuts first, then use your impact wrench to secure them properly in a star pattern to avoid warping.
#### Step 10: Lower the Excavator
Carefully remove the jack stands and lower the excavator with the hydraulic jack. Once it’s back on the ground, reconnect the battery.
#### Step 11: Final Checks
After everything is back in place, it’s important to do a thorough check. Inspect the strut mount area for any signs of loose bolts or misalignment. If possible, take the excavator for a short test run to ensure everything is functioning correctly.
### Conclusion
And there you have it! The detailed steps for replacing the strut mount on a Komatsu PC128UU-2 excavator. Remember, when working on heavy machinery, patience and attention to detail are key. If you ever feel unsure at any step, consulting the service manual or a professional is always a wise decision. Happy wrenching!
The oxygen sensor is a critical component of a vehicle’s emissions control system, primarily found in modern internal combustion engines. Its primary function is to measure the concentration of oxygen in the exhaust gases as they exit the engine. This information is vital for the engine control unit (ECU) to optimize the air-fuel mixture, ensuring that the engine operates efficiently and produces minimal harmful emissions.
Typically, there are two types of oxygen sensors: upstream (pre-catalytic converter) and downstream (post-catalytic converter). The upstream sensor monitors the oxygen levels before the exhaust gases reach the catalytic converter, providing real-time data to adjust the fuel injection and maintain the ideal stoichiometric ratio (the perfect balance of air to fuel). The downstream sensor, on the other hand, checks the performance of the catalytic converter by assessing the oxygen levels after the gases have been treated.
A properly functioning oxygen sensor plays a significant role in enhancing fuel efficiency, improving engine performance, and reducing harmful emissions, such as carbon monoxide and nitrogen oxides. If the sensor fails or becomes faulty, it can lead to poor fuel economy, increased emissions, and potential engine damage. Symptoms of a failing oxygen sensor may include illuminated check engine lights, rough idling, misfires, or a noticeable decrease in power. Regular maintenance and timely replacement of the oxygen sensor are essential for keeping the vehicle running smoothly and complying with emissions regulations.