BELARUS-
1221.2/1221В.2/1221.3
Aggregation
200
The most accurate and reliable method of determining the weight and loads consists in
weighing on the balance for motor transport means.
Attention!
The load on the hitch linkage, towing dawbar, axles, tyres and body of the tractor from
the weight of the aggregated machines shall not exceed the maximum allowable values
specified by the manufacturer. Here the load on the front axle of the tractor in every case
of its use shall be always at least 20% of the own operating weight of the tractor without
ballast weights and water solutions in the tyres.
The practical determination of the weight of the tractor and machines and vertical loads
on the axles of the tractor is performed usually on any suitable balance having an appro-
priate capacity and intended for heavy-load motor transport means. Weighing on the bal-
ance makes it possible to determine also the real load on the coupling arrangements of the
trailed, semi-trailed and semi-mounted machines.
The value of vertical loads on the coupling arrangements of the trailed, semi-trailed and
semi-mounted machines can be determined by means of a special dynamometer.
Important:
To determine the load on a certain axle of the tractor by means of a bal-
ance, the tractor shall be placed so that the wheels of the axle to be measured would be
on the balance platform and the wheels of another axle – outside the weighting zone at the
same level with the platform. We recommend measuring the load on a separate axle of the
tractor within a MTA using the following technique:
Standard equipment A: Tractor with a rear-mounted machine or mountable ballast
weights; the front hitch linkage is not used.
•
the front axle (with the rear hitch linkage lowered) is weighed;
•
the rear axle (with the rear hitch linkage lifted) is weighed.
Standard equipment B: Tractor with a front-mounted machine or mounted ballast
weights; the rear hitch linkage is not used.
•
the front axle (with the front hitch linkage lifted) is weighed;
•
the rear axle (with the front hitch linkage lowered) is weighed.
Standard equipment C: Tractor with the front and rear machines and mounted ballast
weights.
•
the front axle (with the rear and front hitch linkage) is weighed;
•
the rear axle (with the rear and front hitch linkage) is weighed.
The value of the load on the coupling arrangement of the machine can be determined
using the following two methods:
1. On a balance.
The machine is placed on the balance in such a way that there would be only coupling
arrangement of the machine on the balance with the support of the hitching loop (as re-
gards the trailed and semi-trailed machines) or mounting axle (as regards the semi-
mounted machines) resting upon the platform through a stand with the weight of less than
50 kg and height of 300…500 mm, while the remaining (major) portion of the machine
would be outside the weighing zone. The load on the coupling arrangement of the machine
can be only determined on a platform balance provided the length of the coupling ar-
rangement is sufficient to place the machine outside the weighing zone.
2. By means of a dynamometer.
Summary of Contents for 1221.2
Page 1: ...BELARUS 1221 2 1221В 2 1221 3 1221 0000010РЭ OPERATORS MANUAL 2009 ...
Page 290: ...BELARUS 1221 2 1221В 2 1221 3 Supplement 293 Electrical scheme of tractor connections ...
Page 291: ...BELARUS 1221 2 1221В 2 1221 3 Supplement 294 Variants of tractor connections ...
Page 293: ...BELARUS 1221 2 1221В 2 1221 3 Supplement 290 826 3805010 instrument board scheme ...
