MTZ 1220.3 - Page 38

MTZ 1220.1/1220.3 Section D . Operation controls and instruments
D18
FDA drive control
FDA drive is controlled by the button (2),
located on the board above the right con-
trol unit. The button (2) has three fixed
positions:
• “FDA is automatically “on” — on
pressing the upper part of the button;
• “FDA is “off” — middle position of the
button;
• “Forced FDA engagement” — on
pressing the lower part of the button.
On engaging FDA drive the alarm lamp
(1) lights up. The lamp goes out on
putting the button (2) in the middle posi-
tion and in the moment of switching off
the drive in the automatic mode.
Attention!
1. Operating on the roads with hard
surface switch off the FDA (middle po-
sition of the button (2) in order to pre-
vent tyres and drive parts from in-
creased wear.
2. Use the forced FDA engaging mode
shortly only to overcome obstacles.
3. It is categorically forbidden to oper-
ate in the mode of forced FDA en-
gagement when the speed is over 15
km/h.
4. It is categorically forbidden to use
FDA in the mode of automatic en-
gagement by the reverse motion.
Note: A braking relay is installed in the
electrical line of FDA drive control, it
ensures automatic switching on of FDA
when pressing synchronized pedals of
tractor brakes.