ALSTOR 822 - Page 45

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Instruction manual
SERVICE AND MAINTENANCE
822/834
3.7 INSTRUCTIONS FOR OIL/FILTER REPLACEMENT, 822/834
Hydraulic oil replacement/inspection
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When replacing the hydraulic oil, it is also recommended to change the hydraulic oil lter. See the instructions later in this chapter.
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Park the crane according to gure 1. Crane NOT parked in figure 2.
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Loosen the undercover. Place asuitable vessel for oil drainage underneath, and open the bottom plug located at the bottom of the
tank to drain the oil.
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Once all oil has been drained, rell with the recommended oil to the lower marking on the sight glass (4).
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Replace the oil ller plug.
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Allow the machine to run warm for at least 5 minutes, and check and adjust so that the oil level is centred in the sight glass.
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Control: Park the crane according to gure 1. Allow the machine to run warm for at least 5 minutes, and check and adjust so that
theoil level is centred in the sight glass.
Transfer box oil
Place asuitable vessel for oil drainage
underneath, and open the bottom plug (5) to
drain the oil. Screw the bottom plug back in.
Remove the oor plate next to the operator
seat.
Open the oil ller plug (7) and, if necessary,
also the level plug (6).
Fill up with 0.4 L of new oil. Tighten the oil
ller plug and the level plug.
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