SANY SY95C, Operation And Maintenance Manual

Page: 131 / 166

MAINTENANCE
5-33 SY95C Excavator OMM
2. Clean the top of the hydraulic tank and remove
contaminants from around the breather valve (1).
3. Remove the wing nut cover (2).
0004458
Figure 5-52
4. Press the relief valve button (3) to release pressure
in the hydraulic tank.
5. Remove and clean the breather cover (4).
0003008
Figure 5-53
6. Inspect the filter element (5). Replace the filter
element as needed.
7. Install the filter and tighten the breather cover.
8. Install wing nut cover.
NOTICE!
Dispose of the filter in accordance with all
applicable environmental regulations. Failure to
do so could damage the environment.
Replace the Hydraulic Oil Pilot Filter
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 filler cap.
Relieve any pressure to prevent injury.
Failure to follow this warning could result in death
or serious injury.
1. Prepare the machine for service. See “Maintenance
Safety” on page 2-5.
2. Relieve system pressure. See “Relieve Hydraulic
System Pressure” on page 5-31.
3. Open the left rear access door.
0003995
Figure 5-54
4. Place a container under the pilot filter bowl (1) to
catch any spilled oil.
5. Loosen and remove the pilot filter bowl.
NOTICE!
Dispose of the contaminated oil and filter in
accordance with all applicable environmental
regulations. Failure to do so could damage the
environment.
6. Remove the filter element from the housing. Clean
the interior of the housing and bowl.
7. Install a new filter element, gasket, and O-ring.
8. Install the filter bowl and tighten securely.
9. Close the left rear access door.
10. To purge air from the system, start the engine and
run at low idle for 10 minutes.
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