Belarus 80.1/80.2/82.1/82.2/82
Р —Operation and Service Manual
Section 7. Maintenance
33
4.2.2. Instrument Cluster
The dashboard face may have an instru-
ment cluster 18b (see Fig. 9.3) (installed
instead of individual gauges and indicators
10, 11, 12, 13, and 15), and an electric
tachospeedometer 18
а, with a control
panel 18c.
Tachospeedometer (18
а)
An electrical tachospeedometer, installed
on the dashboard, functions as follows:
With the tractor stopped, following set-
ting the starter and instruments switch
to its «I» position, the display (7) indi-
cates reading (5) of diesel-engine op-
eration in hours;
When on the go, the display enters
read-out (6) of tractor road speed
(km/h); read-out (5) fades away.
Speed electric signals are fed by
speed-sensing devices installed in the
rear-axle half shaft housings;
With the diesel-engine running, indica-
tor pointer (8) moves around the circu-
lar scale (1) to indicate the diesel-
engine crankshaft revolutions per mi-
nute. At the same time, the P.T.O. ro-
tational speed (r.p.m.) enters display
(4). Scale (3) is for P.T.O. I and scale
(2) for P.T.O. II. A rotational speed
electric signal is fed from the alterna-
tor phase winding.
Tachospeedometer (18a) Control Pan-
el (18c)
The control panel is installed on the dash-
board, below the tachoxpeedometer. It
serves to program the tachospeedometer
by tractor models of different series, rear
wheel rolling radii, and makes and models
of diesel-engines.
ATTENTION!
The tachospeedometer
installed has been specifically pro-
grammed for your tractor model back
at the at the manufacturing works. Re-
programming will be required when
changing tyre type, only. Unnecessari-
ly interference with tachospeedometer
programming should be discouraged.
Fig. 9.1. Electrical tachospeedometer
1. Diesel-engine crankshaft rotational speed
scale, r.p.m.
2. P.T.O. II rotational speed scale - 1000 rpm.
3. P.T.O. I rotational speed scale - 540 rpm.
4. Display (LED) to indicate the rear P.T.O. rota-
tional speed.
5. Diesel-engine operating time readout, h.
6. Tractor road speed readout, km/h.
7. Display (LCD) to indicate diesel-engine oper-
ating time and tractor road speed.
8. Pointer indicator to show diesel-engine crank-
shaft rotational speed (r.p.m.).
Fig. 9.2. Tachospeedometer control panel
1.
Push-button for tachospeedometer paramet-
ric codes readout on display (7).
2.
Push-button for tachospeedometer coded
values readout on display (7) when program-
ming by tractor models, rear-wheel rolling radii,
and diesel-engine make or model.