Pto Shaft Usage - Belarus 921.6 Operator's Manual

3.2.7 PTO Shaft Usage

The rear power take-off shaft activation and deactivation rules are described in sub-
section 2.17"Rear Power Take-off Shaft Control".
Control the rear power take-off shaft operation using the multifunction display ac-
cording to subsection 2.8.2 "Principle of the Multifunction Display Operation and Purpose
of its Indicators".
The rules for rear PTO shaft coupling with various types of agricultural machines
are set forth in section 4 "Hitching".
ATTENTION: WHILE WORKING WITH THE PTO SHAFT, IMPLEMENT ALL
SAFETY MEASURES FOR WORKING WITH THE PTO SHAFT, WHICH ARE DE-
SCRIBED IN THIS MANUAL!
ATTENTION: TO PREVENT IMPACT LOADS, START THE REAR PTO SHAFT AT
THE ENGINE RPM NEAR MINIMUM ROTATION SPEED (FROM 1000 TO 1100RPM), THEN
IT IS NECESSARY TO INCREASE THE ENGINE RPM!
The tractor rear PTO shaft is equipped with shank VOM1с according to GOST 3480
(8 teeth, 540 RPM). Optionally the tractor SPTA can include the shank VOM1 (6 teeth, 540
RPM) and VOM2 according to GOST 3480 (21 teeth, 1000 RPM).
Design and location of the BELARUS-921.6 tractors rear power take-off shafts
shanks correspond to regulations and standards, which are applicable to the agricultural
tractors power take-off shafts.
PTO shaft drive
independent
Synchronous,
with rear tyres
420/70R24 in-
stalled
Synchronous,
with rear tyres
14.9R30 in-
stalled
Rotation speed of the PTO shaft shank at the engine crankshaft rated rotation
speed 2200 RPM (when independent drive is activated):
VOM 1с-571 RPM;
VOM 1-571 RPM;
VOM 2-955 RPM.
Power, which is transmitted by shanks 1с/1/2 from the rear PTO shaft, and maxi-
mum allowable moment for the PTO shaft shanks 1с/1/2 of the BELARUS-921.6 tractors
are specified in Table 3.2.2.
Table 3.2.1 – Rear PTO shaft operation modes
Shank type
VOM 1C
VOM 1
VOM 2
VOM 1C
VOM 1
VOM 2
VOM 1C
VOM 1
VOM 2
Rotation speed, RPM
PTO shaft
540
540
955
- 4.38 rev./meter of travel
- 3.86 rev./meter of travel
84
921.6-0000010 OM
engine
2080
2080
2200