Leg section toothed belt
Service Manual MARS 2 1 435 274 - 09/07 67
16. MARS 2.01
Put the toothed belt back into its original position.
Insert the ends of the new leg section toothed belt carefully into the two seat section
struts, and place between the pins.
17. MARS 2.02 to 2.06
Put the toothed belt back into its original position.
Carefully thread the ends of the leg section toothed belt into the two seat section
struts [13], and insert it into the bridge [11] (between the toothed-belt guides [10]).
18.
Slide the LS drive unit [5] together with the connecting cables carefully into the seat
section strut, and thread in the cables of the leg section motor.
19. Ensure that the toothed belt is fitted correctly (over the tension roller).
Carefully insert the leg section motor [8] into the leg section toothed belt [12].
20. Mount the LS drive unit [5] (2 machine screws [6] on the front of the seat section strut
and 2 machine screws [7] on the strut).
21. Connect the red and black cables of the leg section motor to the plug (see section 9
“Circuit Diagram” page 177).
22. Repeat work steps 18. to 21. on the other seat section strut.
23. Adjust the leg section toothed belt [12]:
Tension equally at both ends.
- Loosen the central machine screw [15] in the leg section motor (clamping plate of
the drive unit).
- Determine the frequency of vibration of the toothed belt with the SM4 strand tension
gauge, and set the tension of the toothed belt with the aid of the two vertical machine
screws [14] on the leg section motor (check initial tension 95 Hz ± 5 three times
consecutively).
- Tighten the central machine screw [15].
24. MARS 2.02 to 2.06
Mount the toothed-belt cover [9] (4 countersunk screws).
25. Reattach the positive connectors to the both batteries.
26. Insert both battery fuses.
27. Connect the power supply, and switch the operating table on.
28.
Readjust the sensor(s) if necessary (see section 6 “Adjustment” page 114).
29. Disconnect the power supply cable from the mains supply.
CAUTION
Risk of damaging the insulation on the sensor cable.
Take care that cables are not crushed during assembly.
TEST
Check the functional efficiency of the sensor(s) on the corresponding seat section strut.
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