Belarus 80.1 Operation Manual page 223

ATTENTION: ON BELARUS-80.1/82.1/820 TRACTORS, THE POWER TAKE-OFF
THROUGH THE REAR PTO SHALL NOT EXCEED 60 KW, EITHER WITH CONTINU-
OUS OR GROUND-SPEED DRIVE ENGAGED!
To work with the rear PTO, remove protective cap 1 (figure 4.2.1) that covers shaft
end 9. To do this, squeeze the cap at its base, move it down and pull. After finishing the work
with PTO, make sure to put the cap back to its place, by placing cap 1 on shaft end 9 and
push it in longitudinal direction until cap 1 is safely locked in the hole of casing 6.
1 – protective cap; 2 – bolt; 3 – nut; 4 – rear PTO cover; 5 – casing; 6 – cover;
7 – bolt; 8 – plate; 9 – shaft end.
Figure 4.2.1 – Removing protective cap and replacing rear PTO shaft end
To replace the rear PTO shaft end, do the following operations:
- undo nuts 3 and remove the assembly of casing 5 with cover 6;
- undo bolts 7 and remove plate 8;
- remove shaft end 9;
- grease the centering pilot, and install another shaft end in the spline opening;
- install plate 8, screw bolts 7 in, install casing 5 together with cover 6 and lock them
with nuts 3.
Semi-continuous side PTO has two speeds of 618 rpm and 721 rpm. The rotation
direction is counterclockwise when viewed from the shaft end face; PTO shaft end 1с un-
der GOST 3480 (8 splines).
To work with semi-continuous side PTO, remove the protective cap by undoing two
bolts. After finishing work with side PTO make sure to re-install the cap by putting it on the
shaft end and tightening two bolts.
ATTENTION: SEMI-CONTINUOUS SIDE PTO DISENGAGES IF THE CLUTCH
PEDAL IS PRESSED!
ATTENTION: USE THE GROUND-SPEED DRIVE OF REAR PTO WHEN THE
TRAVEL SPEED OF THE TRACTOR UNIT DOES NOT EXCEED 8 KM/H. OTHERWISE,
THE POWERTRAIN OF THE TRACTOR CAN BE SEVERELY DAMAGED!
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80-0000010B OM