JSC Peterburgsky Traktorny Zavod KIROVETS K-744R2, Operation Manual

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KIROVETS K-744R1, K-744R2, K-744R3, K-744R4 tractors
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The first tyre iron is a lever, one end of which is fork-shaped and serves only for removing
the tyre shoulders from the rim shelves and the other end serves for tyre installation. One
end of the second tyre iron is bent, ensuring reliable grip by the rim lip as well as removal of
tyre shoulders from the rim shelves paired with the fork end of the first tyre iron, the other
end is a box wrench for the locking screw of hydraulic jack. When mounting a tyre, make
sure that the direction of wheel rotation in the course of wheel installation on the tractor coin-
cides with the arrow on the tyre surface. Installation, dismantling and insertion of tyre shoul-
ders are possible only when the diametrically opposite part of the tyre is flush-mounted into
the rim groove in respect of the shoulder to be inserted. Application of soap solution onto the
tyre shoulders during installation and dismantling operations considerably facilitates the in-
stallation and dismantling and extends the tyre lifetime.
Perform tyre installation onto the rim in the following sequence:
put the tyre onto an even ground and fit the rim thereon with the
lip located closer to the groove facing downwards, so as to have
a part of the tyre shoulder entering the rim groove;
insert the first tyre iron between the upper shoulder of the tyre
and the rim to make the bent end reliably grip the tyre shoulder
and, using it as a lever, introduce the tyre shoulder being
mounted behind the rim lip. Repeat this operation several times
until the introduction of the shoulder being mounted stops caus-
ing difficulties;
in order to facilitate further mounting, use the second tyre iron.
Insert it between the tyre shoulder and the rim and press out the
rim upwards, insert the other tyre iron closer to the tyre shoulder
introduced and repeat the previous operation.
In a continuous circular motion, repeat this operation several
times until the rim lip gets into the tyre cavity;
introduce the last rim segment into the tyre by smoothly press-
ing both tyre irons simultaneously;