SY26U Excavator OMM
Maintenance
SANY
Operation and Maintenance Manual — 1119
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INTRODUCTION
SAFE
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CONTROLS
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Swing Drive
Check the Swing Drive Gearbox Mounting Fasteners
1. Prepare the machine for service. See “Maintenance Safety” on page 2-8.
2. Check the swing drive gearbox for missing or broken mounting fasteners.
NOTE:
If any fasteners are missing or broken, contact a SANY dealer for repair information.
3. Tighten any loose fasteners.
Track Assembly
Check the 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 2-8.
4. Use a straightedge to measure track sag (1) between the tread of the track 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.
NOTICE!
Remove gravel or mud buildup between the sprocket and the track before checking track
tension.
Fig. 5-31
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