Printed in U.S.A.
4-24
918070/FP0811
Figure 4-22 Track Final Drive Oil Change
Checking and Adjusting Track Tension
1. Position the machine on a level surface. On
machines equipped with rubber tracks, position the
excavator so the tracks are positioned with mark
(1, Figure 4-23) on the top span of the track in
between drive pinion (2) and track tension roller
(3).
Figure 4-23 Rubber Track Tensioning Position-
ing
2. Use the bucket and dozer blade to lift the unit up
until tracks are just clear of the ground as shown in
Figure 4-24.
3. Shut off the engine. Remove the ignition key and
take it with you. Lock-out the controls by raising
left control console.
4. Measure the clearance at the raised track roller
from the drive gear. Deflection should be between
3/4”-1” (20-25 mm).
5. Using a grease gun, pump grease into the fitting
until the track is properly tensioned (Figure 4-24).
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Summary of Contents for 503Z
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Page 94: ...Printed in U S A 4 4 918070 FP0811 Maintenance Label ...