Lift Linkage; General Information; Three-Point Rear Lift Linkage - Belarus 922.6 Operator's Manual

tractor hitch mechanism (DH or LL) is loaded only with the weight of an implement connect-
or. While changing the implement position from operating to transport, the point of the im-
plement connection to the tractor remains unchanged. Semi-trailed implements include var-
ious vehicles for general and special purposes: general purpose trailers and semi-trailers,
tank semi-trailers, dump trucks, and special purpose semi-trailed vehicles for mechanization
of technological process in agriculture.

4.3 Lift linkage

4.3.1 General information

ATTENTION: BEFORE LEAVING THE TRACTOR FOR ANY TIME PERIOD, THE
LINKED IMPLEMENT SHALL BE PUT ON THE GROUND INDISPENSABLY!
ATTENTION: MAXIMUM LIFTING POWER VALUE OF LIFT LINKAGE AT THE SUS-
PENSION AXIS DETERMINATES TECHNICAL OPERABILITY OF THE LIFT LINKAGE, BUT
NOT PERMISSIBLE MASS OF THE IMPLEMENT COUPLED THROUGH IT. PERMISSIBLE
MASS OF THE IMPLEMENT DEPENDS ON THE CENTROID OVERHANGING LENGTH
AGAINST THE SUSPENSION AXIS, AND IT IS LIMITED BY PERMISSIBLE LOADS ON THE
TRACTOR AND BY CONTROLLABILITY CRITERION!
ATTENTION: WHEN OPERATING LIFT LINKAGES, MAKE SURE THAT THIRD PER-
SONS ARE AT A SAFE DISTANCE FROM LIFT LINKAGES!
Rear lift linkage corresponds to the requirements of ISO 4254-3.

4.3.2 Three-point rear lift linkage

Three-point rear lift linkage of "BELARUS-922.6" tractor is made according to State
Standard GOST 10677 and ISO 730. Basic parameters of RLL specified in table 4.3.1 and
in Figure 4.3.1 are given with rear tires of standard configuration (18.4R34 both single and
twinned) mounted on the tractor and with standard static radius, specified by the tire manu-
facturer.
Rear lift linkage consists of three links (upper and two lower links) coupled with the
tractor with front ends by means of hinged joint, and with rear ends with free hinged joints
for connection to the link pins of the implements coupled. RLL is designed for connection of
rear position implements to the tractor, for link power transfer during operation and for ad-
justment of their position during operation or movement in transport position. RLL provides
coupling of the following types of implements and machines:
- mounted implement fixed in three points (upper and lower links);
- semi-mounted (lower links);
- semi-mounted with a cross bar to the suspension axis of lower links.
ATTENTION: IT IS ALLOWED TO MOUNT A CROSS BAR OR TRAILING SUS-
PENSION AXIS BEING A PART OF THE IMPLEMENTS KIT TO THE RLL LOWER LINKS
ENDS FOR COUPLING OF SEMI-MOUNTED, SEMI-TRAILED AND TRAILED IMPLE-
MENTS, FOR PERFORMANCE OF DIFFERENT WORK WITH THE TRAVEL SPEED NOT
MORE THAN 15 KM/H!
RLL sizes and design of tractors "BELARUS-922.6" make it possible to couple all im-
plements having the corresponding dimensions of the coupling triangle connecting elements
shown in RLL diagram.
Rear lift linkage diagram of type "LL-2" is shown in Figure 4.3.1.
For the protection of coupled implements from swaying, length adjustable limit exter-
nal rods are used.
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922.6-0000010 OM