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Replacing the Trencher Chain Wear
Strip
1.
Loosen the trencher chain; refer to
Chain Tension (page 19)
.
2.
Lift the chain at the top of the boom, and install blocks
between the chain and the boom (
).
Note:
Supporting the chain at the bottom of the
boom helps by lifting the chain above the wear strip.
Figure 38
1.
Blocks
4.
Support
2.
Digging chain
5.
Wear channel
3.
Wear strip
3.
Remove the 5 bolts that secure the wear strip to the top
of the boom (
).
Figure 39
The digging chain has been removed for clarity.
1.
Bolt
2.
Wear strip
4.
Remove the wear strip (
5.
Clean the threads of the bolts.
6.
Apply medium-grade (service removable)
thread-locking compound to the threads of the bolts.
7.
Align the holes of the new wear strip with the holes in
the top of the boom (
).
8.
Secure the wear strip to the top of the boom with the
bolts that you previously removed (
9.
Remove the wood blocks and lower the chain onto the
boom.
10.
Adjust the chain tension of the trencher; refer to
Checking the Chain Tension (page 18)
.
Replacing the Trencher Wear Channel
1.
Loosen the trencher chain; refer to
Chain Tension (page 19)
.
2.
Remove the 10 bolts that secure the wear channel to
the bottom left and bottom right sides of the boom
(
).
Figure 40
The digging chain has been removed for clarity.
1.
Bolt
3.
Boom
2.
Wear strip
3.
Remove the trencher wear channel (
4.
Clean the threads of the bolts.
5.
Apply medium-grade (service removable)
thread-locking compound to the threads of the bolts.
6.
Align the holes of the new wear channel with the holes
in the bottom left and bottom right sides of the boom
(
).
7.
Secure the wear channel to the bottom of the boom
with the bolts that you previously removed (
).
8.
Adjust the chain tension of the trencher; refer to
Checking the Chain Tension (page 18)
.
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