SY50U Excavator OMM
Maintenance
SANY
Operation and Maintenance Manual — 0120
5-53
TABLE OF
CONTENTS
INTRODUCTION
SAFETY
MACHINE
CONTROLS
MACHINE
OPERA
TION
MAINTENANCE
SPECIFICA
TIONS
OPTIONAL
EQUIPMENT
Change the Hydraulic Oil
NOTE:
•
Always use the same type and grade of hydraulic oil.
•
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
for
additional
information.
1. Swing the upper structure 90 degrees clockwise to
position the hydraulic oil drain access panel (1)
between the tracks.
2. Prepare the machine for service. See “Maintenance
3. Relieve system pressure. See “Relieve Hydraulic
4. Remove the four fasteners (2) that secure the hydraulic
oil drain access panel and remove the panel.
WARNING!
•
Allow the hydraulic system to cool before servicing. Hot oil may cause burns or other
serious injury.
•
The hydraulic tank may be under pressure, and hydraulic oil may be present at the
breather. Relieve any pressure to prevent injury.
Failure to follow these warnings could result in death or serious injury.
NOTICE!
•
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.
•
Dispose of used hydraulic oil in accordance with all applicable environmental regulations.
Failure to do so could result in damage to the environment.
Fig. 5-47
0003129
2
1
2
