Robinair 34988 Recovery, Recycling, Recharging Unit - Manual (Page 24)

22
Maintenance
4. The display reads
CAREFULLY REMOVE USED FILTER AND
INSTALL NEW FILTER.
SELECT EXIT TO FINISH
Open the rear door of the unit and unscrew the
old filter. See Figure 12.
5. Look at the new filter—verify both o-rings are
lubricated and correctly located in the grooves.
See Figure 13. Thread the new filter into place
and tighten.
6. Close the rear door. Select EXIT. The filter-drier
replacement is complete.
Replace the Filter-Drier contd .
Filter-
Drier
Figure 12
rear view without shroud Scale Calibration Check
The calibration check is used to ensure the unit’s
internal scale is always calibrated. During this test,
use only the calibration weight that is provided with
the unit.
1. Select SETUP MENU. Scroll to CALIBRATION
CHECK and select START.
2. The unit displays
MAKE SURE NOTHING IS ATTACHED TO THE
TEST MAGNET UNDERNEATH THE UNIT.
PRESS START TO BEGIN OR EXIT TO
ABORT.
Refer to Figure 14, and verify the magnet on the
bottom of the unit is clean. Select START.
3. The unit displays
INSTALL STEEL CALIBRATION BALL ONTO
MAGNET UNDERNEATH UNIT. PRESS NEXT
TO CONTINUE OR EXIT TO ABORT.
Attach the weight provided to the magnet on the
bottom of the unit. Select NEXT.
• If the display shows
CALIBRATION CHECK PASSED
PRESS EXIT TO CONTINUE
the scale is in calibration. Select EXIT.
• If the display shows CALIBRATION CHECK
FAIL, the scale is out of calibration. Contact
an authorized Robinair service center for
assistance.
Magnet
Figure 14
O-rings
Figure 13