How to change cab mounts for komatsu 160 excavator ?

August 11, 2025

Changing the cab mounts on a Komatsu 160 excavator is a crucial maintenance task that ensures operator comfort and safety. The excavator cab, being the control center for the machine, requires stable and secure mounting to absorb vibrations and protect the operator from potential hazards. This guide will walk you through the process of replacing cab mounts, from preparation to reinstallation, helping you maintain your Komatsu 160 excavator's performance and longevity.

 

Preparation

Gather Necessary Tools for Komatsu 160 Cab Removal

Before diving into the excavator cab mount replacement process, it's essential to gather all the required tools and equipment. You'll need a comprehensive set of wrenches, including socket wrenches and adjustable spanners, to handle various bolt sizes. A hydraulic jack and sturdy jack stands are crucial for safely lifting and supporting the cab during removal. Don't forget safety gear such as gloves, safety glasses, and a hard hat to protect yourself throughout the procedure.

 

Ensure Safety Measures Before Excavator Disassembly

Safety should always be your top priority when working on heavy machinery. Start by parking the excavator on a level surface and engaging the parking brake. Disconnect the battery to prevent any electrical mishaps. Place warning signs around the work area to alert others of the ongoing maintenance. It's also wise to have a fire extinguisher nearby as a precautionary measure. Remember, ROPS (Roll-Over Protective Structure) and FOPS (Falling Object Protective Structure) certifications are critical for the cab, so handle all components with care to maintain these safety standards.

 

Inspect Current Cab Mounts for Wear and Damage

Before removing the old cab mounts, conduct a thorough inspection to identify signs of wear or damage. Look for cracks, deformations, or excessive rubber deterioration. This inspection will help you understand the root cause of any issues and ensure that the new mounts will adequately address the problem. Pay special attention to the mounting points on both the cab and the excavator body, checking for any structural damage that might need additional repair.

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Disassembly

Remove Excavator Cab Carefully from the House

Removing the excavator cab requires precision and patience. Start by disconnecting all electrical connections, hydraulic lines, and control cables linking the cab to the excavator body. Label each connection to ensure proper reassembly later. Use the hydraulic jack to slowly lift the cab, constantly checking for any unexpected movement or resistance. As you raise the cab, place jack stands at strategic points to support its weight evenly. This step is crucial for maintaining operator ergonomics and ensuring the cab's climate control systems remain undamaged during the process.

 

Locate and Detach Old Cab Mounts on Komatsu 160

With the cab lifted, you can now access the old cab mounts. These are typically located at the corners of the cab's base. Carefully remove any bolts or fasteners securing the mounts to both the cab and the excavator body. Some mounts may be stubborn due to rust or wear, so apply penetrating oil if necessary. As you remove each mount, note its exact position and orientation to ensure proper placement of the new mounts. This attention to detail will help maintain the cab's stability and reduce operator blind spots once reassembled.

 

Clean Mounting Surfaces for New Cab Installation

After removing the old mounts, thoroughly clean all mounting surfaces. Use a wire brush to remove any rust, dirt, or debris from both the cab and the excavator body mounting points. Apply a rust inhibitor to prevent future corrosion. This cleaning process is essential for ensuring a secure fit for the new mounts and maintaining the integrity of the cab's noise reduction technology. A clean surface also allows for better inspection of the mounting areas, helping you identify any hidden damage or wear that may need addressing before installing the new mounts.

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Reinstallation

Position New Cab Mounts on Komatsu 160 Excavator

With the mounting surfaces cleaned and prepared, it's time to install the new excavator cab mounts. Carefully position each new mount in the exact location of the old ones, ensuring they are oriented correctly. The new mounts should be of high quality and compatible with your Komatsu 160 model to maintain optimal performance and safety standards. Take care to align the mounting holes precisely, as misalignment can lead to improper cab seating and potential safety issues. This step is crucial for preserving the cab's visibility features and ensuring the operator's comfort during long work hours.

 

Securely Reattach Cab to Excavator House

Once the new mounts are in place, slowly lower the cab back onto the excavator body using the hydraulic jack. Guide the cab carefully to ensure proper alignment with the new mounts. Secure each mount with the appropriate bolts and fasteners, tightening them to the manufacturer's specified torque. This process requires attention to detail to maintain the cab's structural integrity and safety features. Double-check all connections, including electrical wiring, hydraulic lines, and control cables, ensuring they are properly reattached and free from any pinch points or strain.

 

Test Cab Stability and Operation After Installation

After reattaching the cab, it's crucial to test its stability and functionality. Start by gently rocking the cab to check for any unusual movement or sounds. Operate all controls within the cab to ensure they function correctly and that the new mounts don't interfere with any mechanisms. Pay special attention to the visibility from the operator's seat, making sure the cab is perfectly level and aligned. Test the climate control system and check for any air leaks around the cab's seals. This thorough testing ensures that the new cab mounts are performing as expected, providing the necessary comfort and safety for the operator.

 

Changing cab mounts on a Komatsu 160 excavator is a vital maintenance task that directly impacts operator safety, comfort, and machine performance. By following this guide, you can ensure a smooth and effective replacement process. Remember to prioritize safety, use the right tools, and pay attention to detail throughout each step. Regular maintenance of your excavator cab, including timely replacement of cab mounts, not only enhances operator experience but also contributes to the longevity and reliability of your heavy equipment.

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FAQ

1. How often should I replace the cab mounts on my Komatsu 160 excavator?

Cab mounts typically need replacement every 3-5 years, depending on usage and working conditions. Regular inspections can help determine when replacement is necessary.

2. Can I replace just one cab mount, or should I replace all of them at once?

It's recommended to replace all cab mounts simultaneously to ensure even wear and maintain proper balance and stability of the cab.

3. How do I know if my excavator cab mounts need replacement?

Signs include excessive cab movement, unusual noises during operation, visible wear or cracking of the mounts, and decreased operator comfort due to increased vibration.

4. Are aftermarket cab mounts as good as OEM parts for the Komatsu 160?

While some high-quality aftermarket parts can be suitable, using OEM parts ensures compatibility and maintains the manufacturer's warranty and safety standards.

5. Can improper cab mount installation affect the excavator's performance?

Yes, improper installation can lead to misalignment, increased vibration, operator discomfort, and potential safety hazards. Always follow manufacturer guidelines for installation.

 

China Excavator Cab Supplier

TianNuo Machinery, a leading excavator cab manufacturer in China, offers a wide range of products including excavator lifting cabs, tilting cabs, and front convex cabs. Their Komatsu 160 compatible cabs feature panoramic windows, anti-slip steps, and adjustable seats for optimal operator comfort. With a focus on safety and ergonomics, TianNuo's cabs are designed to enhance productivity in various industries such as construction, mining, and railway maintenance. For inquiries about their excavator cab solutions or other products like extended arms and specialized buckets, contact us at boom@stnd-machinery.com.

References

  1. Komatsu 160 Excavator Service Manual
  2. TianNuo Machinery Excavator Parts Catalog
  3. Excavator Cab Mount Replacement Guide
  4. Komatsu Equipment Safety Guidelines
  5. Heavy Equipment Maintenance Best Practices
  6. Excavator Operator's Manual for Cab Maintenance

About Author: Arm

Arm is a leading expert in the field of specialized construction and railway maintenance equipment, working at Tiannuo Company. Tiannuo specializes in manufacturing a wide range of products, including railway maintenance equipment like railway sleeper changing machines and screening machines, excavator modification equipment such as excavator lifting cabs, various engineering arms for excavators, excavator accessories like digging buckets, and engineering vehicle auxiliary equipment like loader buckets.

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