5.2 Hydraulic System Maintenance
5.2.1 Check hydraulic oil
Check the hydraulic oil level
Maintaining the hydraulic oil at the proper level is essential to machine operation. Improper hydraulic
oil levels can damage hydraulic components. Daily checks allow the inspector to identify changes in oil
level that might indicate the presence of hydraulic system problems.
Be sure the machine is on a firm and level surface and in stowed position.
By observing oil level in hydraulic oil tank, the hydraulic oil level after excluding air in the hydraulic
system should reach the maximum scale mark on the hydraulic oil tank, and not be higher than bottom
of the oil tank cap (different models have different maximum scale).
Add oil as needed. Do not overfill.
Hydraulic oil capacity
Table 5-1 Capacity
Model
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Hydraulic tank
75L
19.8 us gal
Hydraulic system oil quality (tank included)
123KG
271 lb
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Hydraulic oil specification
Please refer to the Table 5-2 below for the recommended type and model of hydraulic oil — Technical
Parameters of Hydraulic Oil. Please select proper hydraulic oil according to the specific application
environment of the equipment. For special environment or special requirements of users, please contact
*0*
or the hydraulic oil manufacturer.
Note: Do not mix oils of different types, as they contain different additives which may cause negative
effects. If mixing of hydraulic oils is unavoidable, permission must be obtained from the
hydraulic oil manufacturer.
*0*
does not cover machine malfunction caused by hydraulic oil
mixing.
