SANY SY500H, Operation And Maintenance Manual

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5-50
MAINTENANCE
SY500H Excavator OMM
Track Assemblies.
Check the Track Assemblies
0004782
Figure 5-101
NOTE: Use an appropriate lifting device to shift or lift the
track shoes as needed to perform this procedure.
1. Check the track shoes (1) for damage, wear, loose
fasteners, or any other defects.
2. Replace defective track shoes as necessary.
3. Check the idler (2), track rollers (5), and top rollers
(3) for irregular wear and defects.
4. Check the track final drives (4) for excessive wear,
defects, and oil leaks.
5. Remove as much accumulated dirt as possible from
the track assemblies. Excessive debris requires
more energy to operate the tracks and causes the
moving parts to wear rapidly.
Check the Track Fasteners
0004869
Figure 5-102
NOTE: Replace any damaged or defective fasteners.
1. Make sure all track fasteners are installed for each
track shoe (1) and are not broken, bent, loose, or
damaged.
NOTE: Tighten the fasteners in a crisscross sequence
shown, starting at the number 2 position and
making sure the fasteners and track shoes are in
contact with the links mating surfaces.
2. Tighten any loose fasteners.
Check the Idler
00004728
Figure 5-103
Check the idler (1) for cracks and distortion. Replace as
necessary.
3. Inspect the mounting fasteners (1) that secure the
support rollers to the side frame for rust, damage, or
loose parts.
2 1
4
3
5
2
3
4
1
3
4
5
2
1
1