
SEBU7494-06 135
Maintenance Section
Track (Rubber) - Inspect/Adjust
Adju stme nt of the Drive Frame f or
the 267 and 277
g00900564
Illustration 171
1. Fully lower the wheels that tension the track so
that all tension is removed from the track. Remove
the bolts (1), (2) and (3) that secure the drive
frame.
Note: The bolt (2) is located on the opposite side of
thedriveframefrombolt(3).Itwillbenecessaryto
raise the body of the machine in order to gain access
to this bolt.
2. Install the tool into the brackets (A). Position the
tool so that the fixed end of the tool is positioned
inside the hooks. Slide the pin that is located
on the other end of the tool through the holes
in the undercarriage in order to secure the tool.
Ratchet the tool in order to move the drive frame
backward. Continue to move the drive frame until
the second set of mounting holes are visible and
the three bolts can be reinstalled. Tighten the
bolts. Adjust the track tension.
Note: A pry bar may be needed in order to lift the
drive frame upward when you move the drive frame
rearward.
Note: Ensure that the drive lugs of the track do not
contact the front axle.
Track Adju stment for the 287
g00954633
Illustration 172
1. Placea45kg(100lb)weightbetweenthedrive
sprocket and the idlers. Place a straight edge
across the
drive sprocket and idlers. Measure the
track sag between the bottom of the straight edge
and the top of the track. The track sag should
besetat12
mm (0.5 inch). If the track needs
adjustment proceed with the following steps.
g01011089
Illustration 173
2. Install the track tensioner. The square portion of
the bracket assembly for the track tensioner fits
into the square cutouts on top of the undercarriage.