Maintenance
SY26U Excavator OMM
5-40
Operation and Maintenance Manual — 1119
SANY
5. Place a suitable container under the drain plug (3).
•
NOTE:
For hydraulic tank capacity, see “Fluid
6. Remove the drain plug and allow the oil to drain.
7. Clean the inside of the hydraulic tank.
8. Install and tighten the drain plug.
9. Fill the hydraulic tank to the specified level. See “Add
Collect Hydraulic Oil Sample
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 2-8.
4. Remove the hydraulic tank breather assembly. See “Add Hydraulic Oil” on page 5-33.
5. Insert the oil sample tube into the hydraulic tank and collect a sample of hydraulic oil. Reinstall the hydraulic
tank breather assembly.
6. Send the sample for testing in accordance with the instructions packaged with the sample kit.
Check the Hydraulic Hoses, Lines, and Connectors
Check all hoses and lines for leaks. Replace damaged or leaking hoses or lines immediately. Any hydraulic pump
lines or connectors connected to the engine compartment must be replaced if damaged.
Make sure there is sufficient clearance between all hydraulic lines and hoses and the high-temperature engine
components. Make sure there is no friction between them. Make sure all hydraulic lines and hoses do not come in
contact with each other.
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.
Fig. 5-30
0003238
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