Service - 180 RT45 Operator’s Manual
As Needed
Trencher
Replace Digging Chain
Visually check digging chains for wear on rollers
and sidebars (2). Check pins (3) and bushing wear
by measuring distance between chain pins and
comparing it with a new chain. Also check digging
teeth (1).
To remove chain:
1. Fasten and adjust seat belt.
2. Start tractor. See page 72 for proper start-up
procedures.
3. Move attachment direction/speed control
until digging chain connector pin is on top of
boom.
4. Lower boom to ground.
5. Set parking brake.
6. Turn ignition switch to STOP.
7. Roller booms: Secure chain by clamping
links on either side of connector pin with
chain jaws (shown). Squeeze jaws to
reduce pressure on connector pin.
Sprocket booms: Lock rear idler sprocket.
NOTICE: Replace sprockets when a new chain
is installed.
Fluid pressure could pierce skin and cause injury
or death. Stay away.
To help avoid injury:
• Service digging boom grease cylinder only while standing on opposite side of boom.
• Wear gloves and safety glasses, and cover fitting with cloth when relieving pressure in
cylinder.
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