Instruction Manual

Service - 94 SK850 Operator’s Manual
As Needed
CMW
®
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 unit. See page 50 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. Engage 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.