Fig. 25 Checking the oil level
1 Oil sight glass
2 Oil filler and crankcase vent
➤ Read off the oil level daily and before each start-up.
Result Top up when the compressor oil level falls to the minimum mark. Top up the oil
10.9 Topping up the compressor oil
Material Compressor oil
Precondition The power supply isolating device is switched off,
the device is locked off,
a check has been made that no voltage is present.
The machine has cooled down.
CAUTION
The machine can be damaged by unsuitable oil.
➤ Never mix different types of oil.
➤ Never top up with a different type of oil to that already used in the machine.
The type of compressor oil used is listed in table 15.
1. Remove the crankcase vent from the oil filler.
2. Top up to bring the oil to the correct level.
3. Replace the crankcase vent.
4. Start the machine and check the oil level again after about 2 minutes, topping up again, if nec‐
essary.
5. Switch off the machine and check visually for leaks.
10.10 Changing the compressor oil
The initial charge of oil should be changed as specified in table 31.
Drain the oil completely from the compressor block.
If oil level monitoring is fitted: check its function as detailed in chapter 6.6.1.
10 Maintenance
10.9 Topping up the compressor oil
No.: 9_9431_02 E
Service Manual 2-stage piston compressor
EPC
53
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