How to Repair Damaged Tracks in a Mini Excavator

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The steps in repairing your are pretty simple, but you’ll need help and the proper tools to do it efficiently and safely. Replacing rubber tracks can be done by yourself, but extra hands wouldn’t hurt. Read on, and you should be back to work in no time!

Step 1. Make sure that you’re doing the somewhere spacious, free of debris, and safe. An area with a flat ground would be ideal. But, then again, nobody really anticipates when your tracks would need repairing, so a good solid ground will do.

Step
2.

Suspend your tracks mid-air so you can start working on it. Revolve
the house so that the dozer blade is on the opposite side of the
boom. You can start picking the machine up by pushing the dozer blade
down. Then you can use the boom to push the rest of the machine up.

The
machine will then be standing on the boom and the blade with its
wheels lifted, which is okay. For added security, especially if
you’re doing the repairs on an unsure footing, you can place jacks
underneath the carriage to support the weight of the machine and keep
it in place.

Step
3
.
The next step would be to loosen the grease valve fitting with a
wrench.

Note
that different models of mini excavators could be designed in
different ways, so always check the manual.

Loosening
the grease valve fitting releases the pressure from the grease piston
assembly that is keeping the tension on your idler wheel. It does
this by letting the grease out which may surprise you if you’re
doing this for the first time. As the grease is released, the piston
assembly collapses and the idler wheel will retract. It’s still
possible to do this without removing the grease fitting completely,
especially if the idler is giving you a hard time retracting.

Pro
tip:
You
can place a block of wood between the track and the sprocket and then
move the track in reverse. Doing so will tighten the rubber track,
which will pull the idler backward.

Step
4
.
At this point, you’ll find that the tracks sag from the rollers.
You can now remove the rubber track from the machine. Start by
pulling the track from the idler end. If you’re strong enough, you
can do this with the use of pry bars. If possible though, you can tie
a chain around the rubber track and use a forklift to carefully pull
it.

Step
5.

Once the track is completely removed from the idler end, you can now
easily lift it to remove it from the sprocket and out of the working
area.

Step
6.

Now that the rubber track is removed, it’s time to inspect the
idlers, rollers, and sprockets for damage or wear. The user’s
manual from the machine’s manufacturer should tell you what to look
for. If no damage is detected and no components need to be replaced,
you can start cleaning the track frame from mud and other debris.

Step
7.

After the frame is cleaned, you can put the rubber track back or
install a new one if necessary. You can do this by lifting the rubber
track over the sprocket first, making sure that the teeth are
aligned. Then, rotate the sprocket slowly in reverse to help you
slide the other end of the track to the idler.

It’s
crucial that you use a pry bar to do this and not your hands to avoid
accidents.

Step
8.

Once everything is on track, you can put the tension back on the
idler by tightening the grease valve fitting and filling it with
grease. You need to do this until the rubber track hangs 1 to 2
inches from the lower middle roller. You may need to check your
manual, though, for recommended specifications by the manufacturer.

Step
9.

Run the tracks forward and in reverse to test that the new rubber
track is adequately fitted.

Step
10.

You can now remove all the jacks that you used and carefully lower
the machine starting with the blade and then the boom.

Once
everything is done, give the mini excavator a test drive and check if
everything is working correctly. Your mini excavator is an
investment, and just like any investment, you need to make sure that
it is working properly according to your preference and need.



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