Drive Train Description
This lift truck is equipped with dual independent
drive trains. Each drive train consists of a drive
unit (drive motor and gearbox), and a drive wheel.
Traction drive is transmitted from the drive motor
to the gearbox through a pinion gear driven by the
motor armature shaft. From the gearbox, the
traction drive is transmitted to the drive wheel by
a pinion gear on the output end of the gearbox
which meshes with a ring gear mounted on the
inside of the drive wheel. The drive wheel rotates
on a spindle on the frame of the truck.
Each drive train is independently controlled by its
own traction amplifier. This allows the truck to
monitor and control the power output from each of
the drive units, improving the maneuverability of
the truck in tight areas. During turns, the inside
drive motor decreases speed to improve the
turning radius. In addition, each drive motor is
equipped with a disc-type brake to ensure positive
emergency stopping. Normal slowing or
deceleration is accomplished through "plugging"
of the motors.
NOTE
Specialized tools, fixtures, and training are
required to service any part of the drive unit
assembly.
E
lectric
C
ounterbalance
H
igh
O
utput
Drive
12/20/99
2.1
FIGURE 2.1 - DRIVE UNIT
