Doosan D50S-5 Operation & Maintenance Manual page 120

e.g. selecting the reverse gear when travelling in e.g. selecting the reverse gear when travelling in
excess of 5 km/h (3.11 mph) in a forward direction, excess of 5 km/h (3.11 mph) in a forward direction,
and vice versa. and vice versa.
The Autoshift controller is mounted on a convenient The Autoshift controller is mounted on a convenient
position away from excessive heat sources and position away from excessive heat sources and
retrofits into the truck's electrical system. An retrofits into the truck's electrical system. An
inductive inductive speed speed
transmission case where it will pick up a pulse from transmission case where it will pick up a pulse from
a gear tooth pattern. This pulse is used to monitor a gear tooth pattern. This pulse is used to monitor
the truck in motion and its travel speed. To enable the truck in motion and its travel speed. To enable
the system to change gears smoothly, the shift the system to change gears smoothly, the shift
points for offset speed are adjustable. points for offset speed are adjustable.
An operator no longer has to change gears with his An operator no longer has to change gears with his
hands, therefore he can be more productive. hands, therefore he can be more productive.
The Autoshift controller prevents strain and abuse to The Autoshift controller prevents strain and abuse to
the transmission by changing gears up and down the transmission by changing gears up and down
automatically. It also prevents damage to the half automatically. It also prevents damage to the half
shaft, excessive tire wear and heat to the shaft, excessive tire wear and heat to the
transmission. transmission.
Features Features
Product Product
ASC-204 ASC-204
ASC-202 ASC-202
ASC-208 ASC-208
1) 1) 2 - 2 - speed auto speed auto shift control
2) 2) Prevent Prevent downshifting downshifting at high
3) 3) Inhibit se Inhibit selecting direction at high speed outside lecting direction at high speed outside
of the design parameters. of the design parameters.
Operation Section Operation Section
• Direction Inhibit Point (SW2) • Direction Inhibit Point (SW2)
Auto Shift allows you to set the Direction Inhibit Auto Shift allows you to set the Direction Inhibit
Speed, the maximum travel speed at which the Speed, the maximum travel speed at which the
transmission can be reversed. For adjustment of transmission can be reversed. For adjustment of
direction inhibit speed, the SW2 switch is used on direction inhibit speed, the SW2 switch is used on
the printed circuit board. the printed circuit board.
Using Using a a philips philips
adjustment until the white dot is next to the notch adjustment until the white dot is next to the notch
corresponding to the selected vehicle speed. You corresponding to the selected vehicle speed. You
may reset lnhibit Speed to one of ten settings may reset lnhibit Speed to one of ten settings
between a minimum of 3.3km/h(2.05mph) and a between a minimum of 3.3km/h(2.05mph) and a
sensor sensor is is mounted mounted
Adaptable Adaptable To To
Tier- Ⅱ
D50/60/70 D50/60/70S-5 (2 Speed, S-5 (2 Speed, Tier-
G50/60/70S-5 G50/60/70S-5
Tier- Ⅲ
D50/60/70 D50/60/70S-5 (2 Speed, S-5 (2 Speed, Tier-
shift control
at high speed speed
screwdriver, screwdriver, turn turn the the
Adjustment Switch Adjustment Switch
on on the the
• Low-High Shift Point (SW1) • Low-High Shift Point (
ASC-204/202 allows you to set the 2 speed Auto ASC-204/202 allows you to set the 2 speed Auto
Gear Shift Point, the maximum travel speed at which Gear Shift Point, the maximum travel speed at which
the Auto Shift Controller up-shift or down-shift the the Auto Shift Controller up-shift or down-shift the
transmission automatically according to the vehicle transmission automatically according to the vehicle
speed. For adjustment of 2 speed Auto Gear Shift speed. For adjustment of 2 speed Auto Gear Shift
speed, the SW1 switch is used on the printed circuit speed, the SW1 switch is used on the printed circuit
board. board.
Tow Speed Auto Gear Shift Point Tow Speed Auto Gear Shift Point
Notch Notch
0 0 2.5km/h(1.55mph) 2.5km/h(1.55mph)
1 1 3.0km/h(1.86mph) 3.0km/h(1.86mph)
2 2
3.5km/h(2.17mph) 3.5km/h(2.17mph)
3 3 4.0km/h(2.49mph) 4.0km/h(2.49mph)
Ⅱ ) )
4 4 4.5km/h(2.80mph) 4.5km/h(2.80mph)
5 5 5.0km/h(3.11mph) 5.0km/h(3.11mph)
Ⅲ ) )
6 6 5.5km/h(3.42mph) 5.5km/h(3.42mph)
7 7
6.0km/h(3.73mph) 6.0km/h(3.73mph)
8 8 6.5km/h(4.04mph) 6.5km/h(4.04mph)
9 9 7.0km/h(4.35mph) 7.0km/h(4.35mph)
For example if SW1 is put 5 For example if SW1 is put 5
auto gear shift speed will be 5.0km/h(3.11mph) in auto gear shift speed will be 5.0km/h(3.11mph) in
ASC-204 or 6.17km/h(3.84mph) in ASC-202. The ASC-204 or 6.17km/h(3.84mph) in ASC-202. The
factory setting value as a default for SW1 of each factory setting value as a default for SW1 of each
model is as follows. model is as follows.
Product Product
ASC-204 ASC-204
ASC-202 ASC-202
ASC-208 ASC-208
119 119
Diagnostics Features Diagnostics Features
SW1 SW1
SW1)
SW1(Low-High SHIFT) SW1(Low-High SHIFT)
Vehicle Speed Vehicle Speed
ASC-204 ASC-204 ASC-202 ASC-202
5.57km/h(3.46mph) 5.57km/h(3.46mph)
6.17km/h(3.84mph) 6.17km/h(3.84mph)
6.78km/h(4.21mph) 6.78km/h(4.21mph)
7.29km/h(4.53mph) 7.29km/h(4.53mph)
7.89km/h(4.90mph) 7.89km/h(4.90mph)
8.40km/h(5.22mph) 8.40km/h(5.22mph)
notch, the 2 speed notch, the 2 speed
th th
Notch Notch Vehicle Speed Vehicle
5 5 5.0km/h 5.0km/h (3.11mph) (3.11mph)
6 6 6.78km/h 6.78km/h (4.21mph) (4.21mph)
5 5 5.0km/h 5.0km/h (3.11mph) (3.11mph)
Speed