Motortech VARIFUEL2, Руководство по сборке, Страница: 44 / 50

7 Errors
44 Rev. 09/2020
9. Attach the stepper motor with the hexagon socket head cap screws M6x16 of the adapter
plate to the VariFuel2/2+.
Do not tighten the screws
Do not tighten the hexagon socket head cap screw M6x16 . The stepper
motor has to remain movable to enable the correct belt tension to be set.
10. Tighten the drive belt with the VariFuel Adjustment Tool for Belt Tension as described in the
supplied instructions for use.
▸ The stepper motor has been installed. You can continue with the adjustment of the fuel
ring (see
Adjust Fuel Ring on page 44).
7.4
Adjust Fuel Ring
In order to adjust the fuel ring, the VariFuel2/2+ 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 from the upper part of the housing with the VariFuel Tool for
Inspection Window. Proceed as described in the instructions for use of the inspection win-
dow tool.
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.