Knowledge

Excavator Undercarriages Information

How Do You Replace a Carrier Roller?
Replace a carrier roller by securing the machine, removing the track and accessing the top roller, unbolting and lifting the old unit, fitting and torquing the new one, then re-tensioning...
What Are the Signs of a Failing Carrier Roller?
Failing carrier rollers show squeaks, flats, worn flanges, and weeping seals. Listen for noise from the upper track run, check the top rollers for flat spots and flange wear, and...
How Do You Protect Track Rollers in Mud, Water, and Dust?
Track roller maintenance in mud, water, and dust comes down to seals, cleaning, and schedules: keep mud and grit off the seal faces, rinse salt and contaminants, and inspect for...
How Do You Install Track Rollers Correctly?
Install track rollers by preparing the machine, positioning and mounting the roller, torquing bolts to the published values in the correct sequence, and checking alignment before the machine returns to...
Which Track Rollers Fit Komatsu PC200-Class Machines?
Komatsu PC200-class machines use track rollers matched to the model series and undercarriage configuration, typically with positions set by the parts list. Confirm the machine serial number and OEM part...
Is Rebuilding Track Rollers Worth It?
Rebuilding track rollers is worth it when the roller shell is reusable, the machine is worth keeping, and the rebuild cost stays well below a new roller. Compare rebuild vs...
What Are the Signs of a Failing Track Roller?
Failing track rollers show themselves through noise, oil or grease leaks, worn flanges, and rough rotation. Listen for grinding or squealing, check for weeping seals, measure flange wear, and replace...
How Do You Replace a JD245GLC Front Idler?
Replacing the front idler on a John Deere JD245GLC requires safely relieving track tension, supporting the excavator, removing the worn idler assembly, inspecting the recoil system, and installing a correctly...
How Can Alberta Fleets Cut Undercarriage Costs?
Alberta fleet operators can reduce excavator undercarriage costs by buying correctly matched, wear-resistant components, tracking cost per operating hour, and replacing connected wear parts together when needed. The lowest purchase...
Are Oil-Filled Track Rollers Better Than Grease-Filled?
Oil-filled track rollers generally last longer and run cooler than grease-filled rollers, but the right choice depends on the machine's specification and duty. Sealing systems decide how long either type...
Single or Double Flange Track Rollers: Which Do You Need?
Track rollers come with single or double flanges, and the choice is set by the machine's undercarriage design. Double-flange rollers guide the track on both sides and are used in...
When Should Track Rollers Be Replaced?
Track rollers should be replaced when flange height or diameter wear reaches the machine's limits, when seals leak oil or grease, or when rollers run rough. Typical roller life ranges...
How Do You Identify the Right Track Roller?
Identify the right track roller by starting with the machine and position, then matching the part number, diameter, width, shaft, and mounting type. Cross-reference the OEM number with the supplier...