Operation Section
-81-
Auto Shift Controller ASC - 200 (If Equipped)
Product Description
The Autoshift controller is an electrical control system,
specially designed for use on forklift trucks with internal
combustion engines.
Its primary purpose is to prevent the operator from
operating the truck outside of the design parameters,
e.g. selecting the reverse gear when traveling in excess
of 6.0 km/h ( 3.73mph ) in a forward direction, and vice
versa.
The Autoshift controller is mounted on a convenient
position away from excessive heat sources and retrofits
into the truck’s electrical system. An inductive speed
sensor is mounted on the transmission case where it will
pick up a pulse from a gear tooth pattern. This pulse is
used to monitor the truck in motion and its travel speed.
To enable the system to change gears smoothly, the
shift points for offset speed are adjustable.
An operator no longer has to change gears with his
hands, therefore he can be more productive.
The Autoshift controller prevents strain and abuse to the
transmission by changing gears up and down
automatically. It also prevents damage to the half shaft,
excessive tire wear and heat to the transmission.
Features
1. 2 - speed auto shift control
2. Prevent downshifting at high speed
3. Inhibit selecting direction at high speed outside of
the design parameters.
Adjustments
SW1
( Low-High Shift Point )
SW2
( Direction Inhibit Point )
NOTCH
Vehicle Speed
NOTCH
Vehicle Speed
0
2.5 km/h (1.55 mph)
0
3.3 km/h (2.05 mph)
1
3.0 km/h (1.86 mph)
1
3.6 km/h (2.24 mph)
2
3.5 km/h (2.17 mph)
2
3.9 km/h (2.42 mph)
3
4.0 km/h (2.49 mph)
3
4.2 km/h (2.61 mph)
4
4.5 km/h (2.80 mph)
4
4.5 km/h (2.80 mph)
5
5.0 km/h (3.11 mph)
5
4.8 km/h (2.98 mph)
6
5.5 km/h (3.42 mph)
6
5.1 km/h (3.17 mph)
7
6.0 km/h (3.73 mph)
7
5.4 km/h (3.36 mph)
8
6.5 km/h (4.04 mph)
8
5.7 km/h (3.54 mph)
9
7.0 km/h (4.35 mph)
9
6.0 km/h (3.73 mph)
Adjustment Switch
Low-High Shift Point (SW1)
ASC-500 allows you to set the 2 speed Auto Gear Shift
Point, the maximum travel speed at which the Auto Shift
Controller up-shift or down-shift the transmission
automatically according to the vehicle speed. For
adjustment of 2 speed Auto Gear Shift speed, the SW1
switch is used on the printed circuit board.
For example if SW1 put to 5
th
notch, the 2 Speed Auto
Gear Shift speed will be 5.0 km/h(3.11 mph), which is
factory setting value as a default.
Direction Inhibit Point (SW2)
Auto Shift allows you to set the Direction Inhibit Speed,
the maximum travel speed at which the transmission
can be reversed. For adjustment of direction inhibit
speed, the SW2 switch is used on the printed circuit
board.
For example SW2 is put to 7
rd
notch, the Direction Inhibit
Speed will be 5.4 km/h (3.36 mph), which is factory
setting value as a default.
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