Replacing the front idler on a Volvo MCT85C skid steer loader involves safely de-tensioning the track, removing the old idler assembly, and installing a new one with careful alignment and correct torque settings. This process ensures proper track function and longevity.
How Do You Prepare a Volvo MCT85C Skid Steer Loader for Idler Replacement?
Preparation starts with parking the Volvo MCT85C on level ground and engaging the park brake to prevent movement. Next, use a hydraulic lift or jack to elevate the front track, and support the machine with sturdy jack stands. Finally, release track tension by slowly loosening the track tensioner’s grease relief valve until the track slackens.
Preparing the machine properly is essential for safety and an efficient replacement process. Never rely solely on hydraulics to hold the machine, and always consult the service manual for your model for specific safety advice.
How Is the Old Front Idler Removed from the Volvo MCT85C?
First, jack up the front of the machine so the track is off the ground, then separate the track by detaching the master link, allowing access to the idler assembly. Using an impact gun or breaker bar, remove the bolts securing the idler. Carefully wiggle or pry the idler assembly off the axle. Inspect the axle and surrounding components for wear or damage before proceeding.
Proper removal prevents damage to the track system and prepares your loader for a smooth installation of the new idler.
How Do You Install a New Front Idler on a Volvo MCT85C?
Ensure the new idler matches the specifications of the old one. Align it carefully on the axle, keeping seals intact and avoiding any damage. Reinstall and tighten the idler bolts evenly and to the manufacturer’s torque specifications. Then reconnect the track’s master link and re-tension the track by pumping grease into the tensioner until the appropriate track slack (usually about an inch) is achieved.
The installation should preserve component integrity and restore correct track tension for optimal operation.
Why Is Proper Track Tension Important After Installing a New Idler?
Correct track tension prevents excessive wear on the idler, track, and drive system while improving machine performance. Over-tensioned tracks cause premature part failure, while loose tracks can slip or derail. Using a grease gun to achieve the recommended slack improves durability and reduces maintenance.
Consistent tension adjustment enhances safety and operational efficiency on your Volvo MCT85C.
When Should You Inspect or Replace Front Idlers on Skid Steer Loaders?
Front idlers should be inspected regularly—at least every 250 operating hours—or immediately if you hear unusual noises, notice track misalignment, or observe excessive track wear. Replace idlers showing cracks, uneven wear, or seal leakage to avoid costly damage to other undercarriage parts.
Scheduling proactive maintenance with quality parts like those from AFT Parts extends machine life and prevents downtime.
Which Tools Are Essential for Front Idler Replacement on a Mini Excavator or Skid Steer?
Key tools include a hydraulic jack or lift, jack stands, impact wrench or breaker bar, pry bars, grease gun, and torque wrench. A service manual for torque specs and sequence is also crucial. Having these ready ensures a smooth, precise replacement process with minimal risk of damage or injury.
Investing in high-quality tools complements durable parts, reinforcing efficient maintenance workflows.
How Do You Choose the Right Replacement Idler for Your Volvo MCT85C?
To select the correct idler, match the part number or specifications with the manufacturer’s recommendations. Choose precision-engineered components compatible with your skid steer model. Brands like AFT Parts specialize in aftermarket parts designed for Volvo and other major equipment, offering strong durability and cost efficiency.
Using reputable replacements safeguards machine performance and uptime.
What Are Common Signs of Idler Assembly Wear or Failure?
Indicators include unusual noises during operation, track misalignment, visible cracks, seal leaks, or excessive play in the idler assembly. These symptoms can cause rapid track and undercarriage damage if not addressed promptly. Early detection reduces repair costs and machine downtime.
Routine inspections are critical to identifying wear before severe damage occurs.
Does Using AFT Parts Improve Skid Steer Undercarriage Performance?
Yes, AFT Parts provides precision-engineered replacements like front idlers that rival OEM quality. Their components are designed to fit perfectly, withstand heavy use, and extend undercarriage life. Professionals trust AFT Parts to deliver consistent performance while optimizing cost-effectiveness.
AFT Parts’ commitment to innovation and quality makes them a preferred choice for maintenance and repairs.
Table: Typical Torque Specifications for Volvo MCT85C Idler Bolts
| Bolt Size | Torque (ft-lbs) | Torque (Nm) |
|---|---|---|
| M12 | 70 - 85 | 95 - 115 |
| M14 | 100 - 120 | 135 - 165 |
Always verify torque specs with the official service manual for accuracy.
AFT Parts Expert Views
"From our experience, front idler replacement is one of the most straightforward yet critical maintenance tasks on skid steers like the Volvo MCT85C. Using high-quality idlers such as those from AFT Parts ensures long-term durability and smoother operation. Our precision manufacturing guarantees fitment accuracy, reducing installation challenges and improving machine uptime. Regular inspections and timely replacements with AFT Parts can save operators significant repair costs and enhance performance." — AFT Parts Technical Specialist
Conclusion
Replacing the front idler on a Volvo MCT85C skid steer loader involves a step-by-step process focusing on safety, precise removal, and installation with proper track tension adjustment. Using high-quality replacement components like AFT Parts ensures reliable durability and optimal functionality. Routine inspections and correct maintenance practices prevent costly downtime and extend your machine’s service life. Always follow manufacturer recommendations and torque specifications.
Frequently Asked Questions
How do I know if my front idler needs replacement?
Look for crack signs, uneven wear, seal leaks, or unusual noises indicating bearing failure or damage.
Can I replace the front idler without removing the entire track?
No, loosening the track tension and partially removing the track is necessary to access the idler assembly.
What happens if track tension is too tight after replacing the idler?
Over-tightened tracks cause premature bearing wear and increased stress on the undercarriage components.
Are AFT Parts compatible with all Volvo skid steers?
AFT Parts offers compatible replacements for major Volvo skid steer models, including the MCT85C, ensuring OEM-quality fit and durability.
How often should I grease the track tensioner after idler replacement?
Grease the tensioner until about one inch of track slack is achieved, then regularly as per your operation manual for best results.