MAINTENANCE
5-35
SY60C Excavator OMM
Track Assembly
Check the Track Tension
NOTICE!
Remove gravel or mud buildup between the
sprocket and the track before checking track
tension.
1.
Use the bucket as a support to lift the track on one
side.
2.
Rotate the track one full revolution.
3.
Prepare the machine for service. See “Maintenance
Safety” on page 2-5.
0002345
Figure 5-50
4.
Use a straightedge to measure the track sag (1)
between the tread of the roller and the rail surface of
the track.
5.
Normal track sag is 0.4 in.–0.8 in. (10 mm–20 mm)
for rubber tracks and 0.6 in.–1.0 in. (15 mm–25 mm)
for steel tracks. If the track sag is outside of this
range, the track tension must be adjusted.
Adjust the Track Tension
WARNING
• The track tension grease fitting is under extreme
pressure and grease can exit the grease valve
and cause serious injury.
• Wear safety goggles, gloves, and other personal
protective equipment (PPE) to prevent serious
injury.
• Do not stand directly in front of the track tension
grease fitting valve when loosening the valve.
Failure to follow these warnings could result in
death or serious injury.
WARNING
• If the track remains too tight after opening the
track tension grease valve, or if the track remains
too loose after adding grease to the track tension
grease fitting, do not attempt to remove the track
or remove the track adjuster. If this occurs,
contact a SANY dealer for further instructions.
• Pressurized grease inside the track adjuster may
cause serious injury if any component is
disassembled before pressure is released.
Failure to follow these precautions could result
in injury.
1.
Use the bucket as a support to lift the track on one
side.
2.
Prepare the machine for service. See “Maintenance
Safety” on page 2-5.
0003038
Figure 5-51
3.
Loosen the fasteners securing the track tension
adjuster cover (1). Rotate the cover open.
0003039
Figure 5-52
Increase the Track Tension
1.
Prepare the machine for service. See “Maintenance
Safety” on page 2-5.
2.
Make sure that the grease valve (2) is closed tightly.
3.
Using a grease gun, pump grease into the grease
fitting (3) while observing idler movement.
4.
Rotate the track one full revolution. Check the track
tension to confirm adjustment.
5.
Position the adjuster cover and tighten the fasteners.
1
1
2
3
