7 Errors
Rev. 09/2022
39
7.4
Adjust Fuel Ring
In order to adjust the fuel ring, the VariFuel3 must be connected with the VariStep3 stepper
motor driver. Adjust the fuel ring as follows:
1.
Stop the gas supply.
2.
Remove the inspection window in the upper part of the housing and the respective O-ring
with the VariFuel Tool for Inspection Window. Proceed as described in the instructions for
use of the inspection window tool.
Explosion hazard!
A dirty O-ring can lead to leakage of the VariFuel3, and there is a risk of
explosion when put back into operation. Replace a dirty O-ring. Use only
O-rings from MOTORTECH (part of MOTORTECH repair kits).
3.
In the upper part of the housing, loosen the toothed pulley with the VariFuel Locking Tool for
Toothed Pulley and a hex key SW3. Proceed as described in the instructions for use of the
locking tool. After loosening, keep the locking tool inserted in the toothed pulley.
4.
If not already done, connect the stepper motor to the VariStep3 stepper motor driver. For
this purpose, read the VariStep3 operating manual.
5.
Move the stepper motor into the closed position.
