Replacing The Digging Chain - Toro RT600 Operator's Manual

Replacing the Digging Chain

Removing the Digging Chain
Preparing to Remove the Digging Chain
1. Start the machine and move the boom to the full up
position.
2. Rotate the digging chain until the master pin is
positioned at the top of the idler wheel of the boom
(Figure 42).
3. Turn the machine off, and remove the key.
4. Remove the bleed plug from the chain tensioner of the
boom; refer to Checking the Chain Tension (page
Note: The idler wheel of the boom should move
forward and down as the chain tension decreases.
5. Install the bleed cap.
6. Start the machine, move the boom to the horizontal
position, turn the machine off and remove the key.
Removing the Master Pin in the Digging Chain
1. Counting from the master pin, loop the lifting strap
around the chain at the digging tooth of the fifth or
sixth link below and forward of the idler wheel
41).
2. With the strap attached to the lifting equipment, raise
the lifting strap enough to support the digging chain.
3. Clamp the ends of the chain with a with a chain clamp
at the link rollers at either side of the inner and outer
plates at the master pin
1. Chain clamp
4. Straighten or cut off the tail of the safety pin and
remove the pin (Figure
(Figure 41).
Figure 41
2. Master pin hole
42).
18).
1. Master pin
2. Safety pin
Note: Discard the safety pin.
5. Remove the master pin and the roller for the master
pin (Figure
(Figure
Note: Retain the master pin and the roller for
installing the replacement chain.
Removing the Digging Chain from the Machine
1. Lower the lifting equipment until the end of the digging
chain is laying on the ground
2. Remove the lifting strap.
3. Start the machine and lower the boom until the bottom
idler wheel is positioned 31 to 36 cm (12 to 14 inches)
above the ground
1. Digging chain
2. Idler wheel
4. Start the machine and move the trencher drive control
to the slow forward chain speed position.
23
Figure 42
3. Safety pin (bent 30° to
45°)
42).
(Figure
(Figure 43).
Figure 43
3. Lifting strap
4. Clearance 31 to 36 cm (12
to 14 inches)
46).