BELARUS-1021/1021.3
Operating manual
35
3.8Rear axle DL and rear PTO control system
Rear PTO control
The rear PTO is engaged by the key switch
(4) and the button switch (5) located on the
panel above the right control panel. The switch
(4) has two fixed positions:
PTO on — when the lower part of the
switch key is pressed;
PTO off — when the upper part of the key
is pressed;
Toturn on thePTO:
- Press thelowerpart of thekey;
- Brieflypressthe buttonswitch(5). The pilot
lamp (3) goes on, and the PTO end starts
rotating.
To turn off the PTO, press the upper part of the
key. The pilot lamp (3) goes off, and the PTO end
stops.
Attention
: After stopping the engine, the
PTO is turned off automatically.
Attention!
Turn on the PTO only when
the engine is running.
Rear axle differential lock (DL) control
The DL is controlled by the key (1)
having three positions:
- DL ON — middle fixed position. Used
for transportation works on hard-surface
roads.
DL ON automatically — when the upper
part of the key (1) is pressed; Fixed position
Used when performing operations with
significant rear-wheel slip. In automatic mode,
the rear wheels are blocked during rectilinear
motion, but when the wheel guides are turned
to an angle exceeding 13° in any direction,
become unblocked.
- forced DL ON — when the lower part of
the key is pressed. Non-fixed position Used for
short-term lock of the rear wheels when
overcoming obstacles. When the key lower
part is released, it returns to its middle position.
When the DL is engaged, the pilot lamp (2)
goes on that goes off when the DL is unlocked
in the automatic mode and when the key (1) is
set to its middle position.
ATTENTION!
Engage the differential lock
in high slippage conditions during field and
transport works.
IMPORTANT!
Disengage the DL when the
tractor speed exceeds 15 km/h. Otherwise,
this will reduce the power gear service life
and impede tractor control. Use positive
locking only for a short time to overcome
road obstacles.
Note
— The electric circuit diagram of rear
axle DL and FDA control connections is
presented in Appendix A of this Manual.
