YMZ-239

9-speed mechanically operated gearbox

  • 1800 n. м.

    Max. Input torque


  • Description
  • Specification
  • Application

Description

9-speed, mechanically operated; with 2-stage planetary demultiplicator, with synchromesh in all speed gears except the first one and reverse

DESIGN FEATURES

  • neutral start switch is provided;
  • electronic sensor of speedometer.

Gear shift control. Lever or mechanism to connect a remote actuator with the connecting shaft directed to the left in the main box and semiautomatic pneumatic switch of demultiplicator with automatic lower range stop

Additional power take-off

  • by spur gear of countershaft through side right hatch up to 29,5 kW (40 hp),
  • and by toothed rim at countershaft rear end through power take-off shaft up to 73,5 kW (100 hp).


Specification

Characteristics Values
Max. Input torque, N.m 1800
Mass with clutch housing, kg 385
Gear ratios 1 - 12,24 2 - 6,88 3 - 4, 86 4 - 3,50 5 - 2,74 6 - 1,97 7 - 1,39 8 - 1,00 9 - 0,78 Reverse - 10,04
Cardan shaft mounting flange ISO8667-T180

Application

Model, configuration Application
YMZ-239 (base model)
YMZ-239-09*
YMZ-239-19*
YMZ-239-20
Automobiles MZKT
YMZ-239-03 Trucks
YMZ-239-12
YMZ-239-13*
YMZ-239-22
YMZ-239-23
Automobiles MAZ
YMZ-239-24
YMZ-239-54
YMZ-239-55*
YMZ-239-23
Automobiles "Ural"
YMZ-239-50 Trucks
YMZ-2391 (base model)
YMZ-2391-20
Automobiles RIAT
YMZ-2391-05 Automobiles MAZ
YMZ-2391-10, -20, -23, -29 Trucks
YMZ-2391-22
YMZ-2391-42
YMZ-2391-43*
Automobiles "Ural"

*with double-cone synchronizer by Hoerbiger (Germany)