MAINTENANCE
5-33
SY60C Excavator OMM
0002408
Figure 5-47
4.
Clean the top of the hydraulic tank and remove
contaminants from around the suction strainer cover
(1).
5.
Loosen the four fasteners (2) securing the suction
strainer cover. Push the cover down against spring
pressure while removing the fasteners. Remove the
cover.
6.
Remove the spring (3), rod (4), and suction strainer
(5).
7.
Clean the suction strainer of any contaminants.
Inspect and replace if damaged.
NOTICE!
Dispose of the strainers in accordance with all
applicable environmental regulations. Failure to
do so could result in damage to the environment.
8.
Install the suction strainer, rod, and spring.
9.
Install a new O-ring for the suction strainer cover.
Tighten the fasteners securely.
NOTE:
Use the extrusion on the bottom of the cap to hold
the spring in place.
10. To purge air from the system, start the engine and
run it at low idle for 10 minutes.
11. Check the hydraulic oil level and add hydraulic oil as
needed. See “Check Hydraulic Oil Level” on
page 4-8.
Collect Hydraulic Oil Sample
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 filter cover.
Relieve any pressure to prevent injury.
Failure to follow these warnings could result in
death or serious injury.
1.
Obtain an oil analysis sample kit from a SANY
dealer.
2.
Operate the machine until the hydraulic oil is up to
normal operating temperature.
3.
Prepare the machine for service. See “Maintenance
Safety” on page 2-5.
NOTICE!
It is critical that all material used to collect the
sample is absolutely clean. Failure to adhere to
this warning can cause equipment damage and
contaminate the sample.
4.
Remove the hydraulic oil return filter cover. See
“Replace the Hydraulic Oil Return Filter” on
page 5-31.
5.
Insert the oil sample tube into the hydraulic tank and
collect a sample of hydraulic oil.
6.
Install the hydraulic oil return filter cover.
Send the sample for testing in accordance with the
instructions packaged with the sample kit.
Change the Hydraulic Oil
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 filter cover.
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.
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