1. Perform an undercarriage walkaround every shift.

Undercarriage typically represents half of your dozer’s parts and service costs. That’s why inspecting it regularly is our #1 dozer maintenance tip. An undercarriage walkaround at the start of every shift is an easy way to prevent failures, extend life and lower operating costs. Here’s what to check:

• Outside of tracks — ensure no bolts are missing or coming loose

• Link assembly and bushings — keep an eye out for any abnormal scalloping or pitting  

• Sprockets — look for mushrooming of the iron in the sprocket pocket

• Idlers — check for any ridging or abnormal un-shimming

• Rollers — make sure they’re tight and free of debris

• Carrier rollers — don’t allow any debris on the frame to clog up and prevent the roller from spinning 

Download the free Cat^® Inspect app for quick, easy inspections using your mobile device.

2. Check track tension as part of your daily walkaround.

Did you know that too-tight track is the top cause of undercarriage-related dozer downtime? That’s because it creates additional load, which can lead to oil loss, cause dry joints and reduce wear life. (Too-loose track is also a problem — you could end up throwing it off and waste time getting it back on.) Good news: Checking and adjusting track tension on your dozer isn’t hard. Just follow these simple guidelines. And be sure to keep monitoring the tension as your working and weather conditions change. Even a little rain that causes wet soil can create packing in the sprockets and result in too-tight track.

3. Keep your undercarriage clean.

How often do you need to clean your undercarriage? It really depends on the material you’re working in. Sand generally comes off easily on its own. Mud or clay, on the other hand, can build up until it’s hard to remove. The best strategy is to keep an eye on cleanliness during your walkaround and remove any excess debris from the frame. When material gets packed into the undercarriage, it can cause the track to tighten and increase wear on moving components. Check out this how-to video for cleaning tips.

Bonus tip: Correct bad operating habits.

How you operate your dozer has a direct effect on how much maintenance you need to perform. To avoid premature wear and unnecessary service procedures, remind your dozer operators:

• Not to turn in the same direction all shift 

• Not to turn on steep slopes

• Not to counter-rotate or make pivot turns

• Not to spin the track

• Not to travel in high speeds or too frequently in reverse