Doosan D50S-5 Operation & Maintenance Manual page 70

Automatic speed range: Automatic speed range:
. FORWARD: 3 speeds. . FORWARD: 3 speeds.
. REVERSE: 3 speeds. . REVERSE: 3 speeds.
MAN When this switch is in "MAN"(manual) position, MAN When this switch is in "MAN"(manual) position,
travel mode is switched to "MANUAL" and travel mode is switched to "MANUAL" and
allows operator to choose speeds manually. allows operator to choose speeds manually.
A-1 A-1 When this switch is in "A-1 When this switch is in "A-1
ST ST
position, gears are started from 1 position, gears are started from 1
changed changed
appropriate speed up to the limit set by the appropriate speed up to the limit set by the
gear ratio according to travel load and engine gear ratio according to travel load and engine
rpm. rpm.
ND ND
A-2 A-2 When this switch is in "A-2 When this switch is in "A-2
position, gears are started from 2 position, gears are started from 2
changed changed
appropriate speed up to the limit set by the appropriate speed up to the limit set by the
gear ratio according to travel load and engine gear ratio according to travel load and engine
rpm. rpm.
Operation Section Operation Section
Transmission Inching Control Transmission Inching Control
Pedal Pedal
"(automatic 1 "(automatic 1
ST ST
speed and speed and
ST ST
"AUTOMATICALLY" "AUTOMATICALLY" to to
ND ND
"(automatic 2 "(automatic 2
speed and speed and
ND ND
"AUTOMATICALLY" "AUTOMATICALLY" to to
This switch changes over the modes of the inching This switch changes over the modes of the inching
control pedal, inching and no-inching. control pedal, inching and no-inching.
DR DR In this In this position, t position, the "NO
selected. In the "NO INCHING" mode, the selected. In the "NO INCHING" mode, the
inching pedal control is disabled but braking inching pedal control is disabled but braking
function by pushing on the inching pedal is still function by pushing on the inching pedal is still
active. active.
) )
ST ST
OP OP In In this this position, t position, the
selected. In the "INCHING" mode, normal selected. In the "INCHING" mode, normal
the the
inching function is enabled by pushing on the inching function is enabled by pushing on the
inching pedal. inching pedal.
NOTE: When driving a middle or long distance NOTE: When driving a middle or long distance
ND ND
) ) without using the inching function, set this without using the inching function, set this
switch to "DR" position to prevent the switch to "DR" position to prevent the
the the transmission clutch pedals from transmission clutch pedals from
unnecessary wear or overheat. unnecessary wear or overheat.
69 69
Service Foot Brake Pedal Service Foot Brake Pedal
he "NO INCHING" INCHING" mode is mode is
he "INCHING" "INCHING" mode mode is is