Maintenance
SY26U Excavator OMM
5-50
Operation and Maintenance Manual — 1119
SANY
Boom Pin
1. Remove the grease fitting cap (1) from the boom pin
grease fitting (2).
2. Grease the boom pin grease fitting.
NOTE:
Wipe excess grease from around the grease
fitting.
3. Install the grease fitting cap.
Swing Bearing
1. Remove the grease fitting caps (1) and grease the two
fittings on the swing bearing (2).
NOTE:
Only one fitting is shown. The fittings are
180° offset from each other.
2. Start the engine and raise the bucket 0.8 in.–1.2 in.
(20 mm–30 mm) above the ground. Swing the upper
structure 45 degrees (1/8 turn) in each direction.
3. Shut down the engine.
4. Repeat steps 1 through 3 until grease appears from the
swing bearing seal.
5. Wipe excess grease from around the grease fittings.
Swing Gear
Grease the swing gear (3).
Boom Swing Cylinder Base End Pin
Grease the boom swing cylinder base end pin (4).
Fig. 5-42
0003248
1
2
Fig. 5-43
0003246
1
1
1
2
3
4
