Toro RT600 Operator's Manual page 21

Torquing the Fasteners on the Chain
Drive Sprocket
Service Interval: After the first 10 hours
After the first 25 hours
Torque the 8 studs and nuts that secure the sprocket for the
digging chain to the planetary drive housing to 109 to 314
N∙m (81 to 99 ft-lb); refer to
Note: The torque specifications are for dry threads only.
Figure 36
(Figure 36).
Checking the Trencher Chain Wear
Strip and Wear Channel
Service Interval: Before each use or daily
1. Lift the chain at the wear strip at the top of the boom,
and check the wear strip for signs of damage or
excessive wear (Figure
Note: If the wear strip is worn through to the frame
of the boom, replace the wear strip; refer to
the Trencher Chain Wear Strip (page
The digging chain has been removed for clarity.
1. Wear strip
2. Boom
2. Check the wear channel at the bottom of the boom for
signs of damage and excessive wear
Note: If the wear channel is worn through to the
bracket of the channel, replace the wear channel; refer
to Replacing the Trencher Wear Channel (page
21
37).
Replacing
22).
Figure 37
3. Wear channel
(Figure 37).
22).