Operation
WP33L_BA_K1_12_en_08.fm
45
6.3 Initial Operation
Check the
direction of
rotation
Allow the Sauer compressor to run only for a few seconds to
check the direction of rotation.
1. Turn the power supply on.
2. Set the operation mode selector to “Manual“ to start the com-
pressor in manual mode.
3. Immediately check the compressor's direction of rotation. It
must rotate in the direction indicated by the arrow on the
crankcase.
4. Set the operation mode selector to “0“ to stop the compres-
sor.
5. Turn the power supply off.
6. If the direction of rotation is incorrect, the polarity of the elec-
tric motor should be changed by a qualified electrician.
Test run 1. Turn the power supply on.
2. Set the operation mode to “Manual” to start the compressor
in manual mode.
If correct, the drain valves will close after approx. 15 seconds
and the compressor then will run up against pressure.
3. Check the air pressure for each stage and the oil pressure,
and compare with the nominal values (for nominal values see
Chapter 6.4 “Routine operation”).
4. Check the function of the automatic periodic drainage,
e. g. 15 seconds every 15 minutes, dependent upon opera-
ting cycle. This is visible as a drop in stage pressures.
5. Set the operation mode to “0” to stop the compressor.
6. Turn the power supply off.
7. If necessary, correct any faults. See also Chapter 7 “Trouble-
shooting“.
8. Complete the start up journal and send it to J.P. SAUER &
SOHN service department. The start up journal is in the Ap-
pendix of this Manual.
Warning!
If the direction of rotation is incorrect, there is no oil pressure.
Risk of subsequent damage.
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