MAHLE RTI RHS900 - Manual (Page 27)

- 6.4 -
Maintenance
C:\RHS Computer Files\Instructions\RHS\GB\642-40\0012B-01.doc 1997.09.11
RHS 900
The condenser surface must be kept clean:
-
Remove the rear panel of the station (4 screws).
-
Clean the condenser with compressed air and perhaps a soft brush. Be
careful not to bend the fins since this would reduce the air flow and impair
condenser capacity.
-
Replace rear panel.
Check the oil level in the vacuum pump:
-
Oil level check: Start the evacuation process and allow it to run for a few
minutes. Switch off the process and wait for one minute and check then the
oil leviel in the sight glass (pos. 33). Replenish with oil if below the center
of the sight glass.
-
Remove cap (pos. 32) to replenish vacuum pump.
-
Replenish (slowly) with vacuum oil to the correct level.
- Replace
cap.
Check oil level in compressor:
− Switch on the mains switch and press the recovery switch.
− Wait until the underpressure has reached 0 bar and switch off the main
switch. Do not wait, until the RECOVERY/RECYCLING-lamp goes out -
otherwise the pressure will be built up again in the evaporator.
− Unsrew the cap of the oil fill stub (pos 31).
− The oil level should be seen at the oil fill stub.
− When necessary, recharge the oil using the syringe supplied - up to the
mentioned level. Each time an amount is injected, wait 5 minutes to allow
the oil to ‘settle’.
− Screw cap on oil fill stub.