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7 MAINTENANCE
7.7 Hydraulic Oil Change
7.7-1
The hydraulic oil should be changed
every 500 service hours. Before begin-
ning the procedure, make sure the
machine is in a clean working environ-
ment. Take any necessary measures to
prevent dirt or debris from entering the
hydraulic system.
To change hydraulic oil and filter:
1.
Park the machine in a location suitable for performing service work, lower
the lift arms, stop the engine and remove the key.
2.
Allow the machine to cool, then release any residual pressure in the
hydraulic system by following the procedure in section 4.6 of this manual.
3.
Locate and remove the hydraulic fluid drain plug (item 1) through the drain
hole in the belly pan. (fig. 7.7-1)
4.
Drain the used oil into a suitable catch container.
5.
Dispose of the oil according to local mandates.
6.
Reinstall the drain plug and tighten.
7.
Refill the hydraulic reservoir (item 3) with Chevron Rykon MV Hydraulic Oil,
or equivalent. (fig. 7.7-2)
Note: Observe the hydraulic oil level sight gauge (item 4) located on the back of
the hydraulic reservoir to ensure that the level is correct (fig. 7.7-3).
8.
Once full, start the engine according to the proper starting procedure and
operate all hydraulic circuits to work any trapped air out of the system.
Then, check the oil level. If low, add oil as necessary until full.
3
1
68
2
7.7-2
7.7-3
4
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