SY26U Excavator OMM
Maintenance
SANY
Operation and Maintenance Manual — 1119
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INTRODUCTION
SAFE
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CONTROLS
MACHINE
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Change the Hydraulic Oil
NOTE:
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Always use the same type and grade of hydraulic oil.
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Hydraulic oil deteriorates faster on machines equipped with a hydraulic breaker than on machines
equipped with a bucket. See “Hydraulic Breaker Maintenance Interval” on page 5-14 for additional
information.
1. Swing the upper structure 90 degrees clockwise to
position the hydraulic oil drain plug between the
tracks.
2. Prepare the machine for service. See “Maintenance
3. Relieve system pressure. See “Relieve Hydraulic
System Pressure” on page 5-32.
4. Remove the six fasteners (1) securing the right skirt (2)
and remove the skirt.
WARNING!
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Allow the hydraulic system to cool before servicing. Hot oil may cause burns or other
serious injury.
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The hydraulic tank may be under pressure, and hydraulic oil may be present at the filler
cover. Relieve any pressure to prevent injury.
Failure to follow these warnings could result in death or serious injury.
NOTICE!
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If the hydraulic oil is contaminated (discolored or containing debris), change the oil
immediately. Find and correct the cause of the contamination before changing the
hydraulic oil.
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Dispose of used hydraulic oil in accordance with all applicable environmental regulations.
Failure to follow these notices could result in damage to the environment.
Fig. 5-29
0003229
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