MTZ 1220.1, Operator'S Manual

Page: 37 / 244

MTZ 1220.1/1220.3 Section D . Operation controls and instruments
D17
Control of the rear axle differential
lock
The rear axle differential lock is con-
trolled by the button (4), located on the
dashboard near FDA control button (2).
Three position button (4) has the follow-
ing positions:
•
“Automatic locking” — on pressing the
upper part of the button (fixed position);
•
“Differential lock is switched off —
middle position (fixed);
•
“Forced blocking” — on pressing the
lower part of the button (unfixed). When
the button is released it automatically
switches to the middle position (“Diffe-
rential lock is switched off”).
On switching on the differential lock
alarm lamp (3) lights up, which goes off
when the differential lock switches on au-
tomatically and when the button (4) is put
in the middle position.
Important! Engage the forced differ-
ential lock only shortly to overcome
road obstacles and carry out the field
and transportation works.
Warning: Do not use the differential
lock at the speeds exceeding 10 km/h
and when turning the tractor. Other-
wise the tractor control becomes diffi-
cult, power transmission is quickly
worn out, the safety is endangered.