MTZ 1220.1, Руководство оператора

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MTZ 1220.1/1220.3 Section I. Coupling of implements
I7
The rear hitch linkage
НУ
-2(3) is made to
Cat. 2, with a potential of being readjusted
to Cat. 3. With this purpose the tractors
are packaged with solid lower links with
coupled components of Cat. 3.
SPTA of tractors of Class1.4 or 2 com-
prise adapter sleeves for lower links and
upper link pin for coupling of implements.
Lower links are blocked in cross direction
with external tension rods.
The drop links are provided in addition to
the main hole for coupling to the lower
links with a slot to join up the wide-span
machines and to follow the field relief
more closely (cultivators, planters, and
others).
For fast coupling is provided automatic
hitch coupler CA-1 for the rear and front
lift linkages.
The crossbeam DH-1 can be installed on
suspension axis of lift linkages. When the
PTO shaft is to be used, a cardan shaft
with the nominal length of 1000 mm may
be recommended. In this case the mount-
ing point of the machine should be located
at the middle of the cardan shaft; other-
wise the PTO will be overload.
The tractor is equipped with three pairs of
free hydraulic system outlets intended for
connection to attached technical facilities
with a help of applied high-pressure
horses.
The oil consumption through the outlets is
45…55 l/min. (depending on the technical
condition of the hydraulic pump). The oil
intake by the hydraulic cylinders should
not exceed 16 l. The oil level in the hy-
draulic tank shall be carried out with the
service cylinders rods fully drawn-in.
To avoid the oil losses when aggregating
the technical means or in case of unex-
pected disconnection, the quick-hitch
mechanisms, cut-off and break-off fittings
are provided.
The hydrostatic power takeoff is possible
through one of the outlets for driving the
auxiliary hydraulic motors. To avoid over-
heating of the hydraulic system, the oper-
ating pressure shall not exceed 11 MPa
that corresponds to the power of not more
than 10 kW. To drain oil from the hydraulic
motor bypassing the distributor, a sepa-
rate pipeline is fitted.
The tractor incorporates the hydraulic
valves and accessories with nominal
cross-section
Ду
= 12 mm and coupling
thread М 20 х 1.5. If necessary, the suitable
adaptors with nominal cross-section of at
least
Ду = 12 mm should be made by the
user for connecting the machines with
other fittings than those specified above.