MAHLE RTI RHS900 - Manual (Page 25)

- 6.2 -
Maintenance
C:\RHS Computer Files\Instructions\RHS\GB\642-40\0012B-01.doc 1997.09.11
RHS 900
To observe the warranty on RHS 900, all components used for maintenance must
be identical to those in the service set, see Section 9
To ensure problem-free operation of RHS 900, the station must be maintained in
accordance with the following:
The power supply to the station must be switched off.
For each 25 operating hours:
The vakuumpump oil in time absorbs moisture, which in the end gives bad
vacuum level. Therefore the oil must be changed frequiently. It will be indicated
in the FLOWCONTROL when to change the oil. After 25 operating hours OIL
CHANGE will blink for 2 min. in the display. Resetting is done automatcally.
Change oil as follows:
-
Place an oil cup below the oil draining plug Pos. 34, and loosen the plug.
Let the old oil flow into the oil cup.
-
Take off the oil charging stub Pos. 32.
-
Mount the oil draining plug again, and pure in new oil into the oil charging
stub Pos 32, untill the oil level can be seen in the center of the sight glass
Pos. 33.
For each 75 operating hours:
Via the FLOW CONTROL it is possible to see when maintenance is necessary by
simply pressing the clock-key on the FLOW CONTROL during the test process.
The FLOW CONTROL gives an alarm 5 hours before maintenance is due.
SERVICE will flash for 10 seconds in the display.
On reaching 75 hours of operation, SERVICE flashes for 2 minutes in the display.
After maintenance is complete, the number of operating hours to the next
maintenance must be set at zero as follows: