Mertz Boxer 999-935, Operator'S Manual

Page: 62 / 84

4-10
Routine Service and Maintenance
NOTE:
Extremely dusty or dirty working conditions may require more frequent service/
replacement.
10.Check both track assemblies for:
a. The proper tension. Too little or too much tension can cause premature track wear and
travel motor damage.
b. Make sure that the tracks are not worn or damaged.
c. Make sure that the nylon guide block is centered within the track and is guiding the track
properly.
11.Check for loose or missing fasteners.
a. Inspect for any loose or missing bolts or fasteners.
b. Tighten or replace any missing bolts or fasteners before operating the machine.
12.Check for proper track tension.
a. Raise the machine off the ground and support it using a device capable of safely support-
ing 3000 lbs. See Figure 4–10 or suggested location of the support devices..
b. Tilt the bucket downwards until the cutting edge is touching the ground. See Figure 4–10 .
c. Lower the loader arm assembly, pushing the front of the machine upwards. Continue
raising the machine until the rear drive sprocket is off the ground. Shut off the engine.
d. Measure the gap between the bottom of the center bogey guide roller (Item 1, Figure 4–
10 ) and the track. The proper tension will be about a ½" - 5/8" deflection.
e. If an adjustment is needed, rotate the track tension adjustment nut (Item 2, Figure 4–10 )
until the proper track deflection measurement is achieved.
f. With the tracks still off the ground, start the engine and rotate just the track being adjusted
three or four times in both forward and reverse. Shut off the engine after rotating the track.
g. Remeasure the deflection dimension.
h. Repeat the measurement and adjustment procedure on the other track assembly.
i. Lower the machine onto the ground.