
60
Operation Section (D6T LGP (OEM)) WEBM1000
Machine Operation
Regeneration Disabled – The display will
indicate when a regeneration cycle is
disabled.
Referen
ce: See Oper
ation and Maintenance
Manual, “Diesel Particulate Filter Regeneration” for
additional information.
Engine Fan Reverse Switch (17) (If
equipped)
If the machine is equipped with the reverse fan
function (attachment), the fan can reverse the
direction of air flow from forward to the rearward
direction. This function enables the fan to purge
debris from the radiator, aftercooler cores, and
engine access doors. The purge cycle will begin
automatically when the purge interval expires or the
purge cycle can begin manually with a switch(17) on
the left dash.
Reversing Fan Control (17) – In order to
initiate the fan purge cycle, press fan
control switch
(17) while the machine is in
NEUTRAL and the parking brake is
released or when the machine is in REVERSE. In
order to initiate the continuous purge cycle, press
fan control switch (17) while the machine is in
NEUTRAL and the parking brake is ON and hold for
3 seconds. The fan will remain in a continuous purge
cycle until the switch is pressed again or the parking
brake is released.
The setting range for the duration of the fan purge
c
ycl
e is 5 - 60 seconds. The setting range for fan
purge interval is 5 - 120 minutes.
If the purge interval expires, a purge cycle will begin
whe
n the tra
ck-type tractor is in a REVERSE gear or
in NEUTRAL and the parking brake is released. If the
purge interval expires and the track-type tractor is in
a FORWARD gear, starting a purge cycle is
prevented. If the purge interval expires and the
track-type tractor is in NEUTRAL with the parking
brake engaged, starting a purge cycle is prevented.
A purge cycle is prohibited until there is a shift into
REVERSE gear or the parking brake is released in
NEUTRAL.
If the purge button is manually depressed, a purge
cy
cle will begin when the track-type tractor is
in a
REVERSE gear or in NEUTRAL and the parking
brake is released. If the purge button is manually
depressed, the request for a purge cycle will be
ignored when the track-type tractor is in a
FORWARD gear or in NEUTRAL and the parking
brake is engaged.
When a purge cycle is in progress and the
ca
ncellati
on of the purge cycle is set to OFF, the
indicator light for the reverse fan function in
monitoring system display (10) will light. After a
purge cycle begins, the purge cycle is canceled if
there is a shift to forward gear.
When a purge cycle begins and the cancellation of
the Purge C
ycle is set
to ON, the purge cycle will
stop automatically once the machine is put into
FORWARD gear. If the cancellation of the Purge
Cycle occurs after 15 seconds of purge time, the
purge interval timer is kept at zero. Then, the system
is able to purge the cooling system and the purge
cycle starts automatically at the next time. After three
successive attempts fail to complete more than 15
seconds of purge time, the purge interval timer is
reset to the purge interval.
The purge interval timer is reset upon full completion
of
every purg
e cycle regardless of an automatic start
or manual start. The reverse fan function is disabled
when the hydraulic oil temperature is below 0 C (32
F). The fan purge cycle will not operate when the
engine coolant temperature equals 109 C (228.2
F) or the engine coolant exceeds that temperature.
Throttle Control Switch (18)
78
Illustration 78
Throttle control switch (18) is located on the right-hand console.
High Idle – For high idle, press the
throttle control switch on the top of
switch(
18), if equipped. The engine
speed immediately moves to high idle.
Your machine has a high idle engine speed of 2000
rpm.
Low Idle – For low idle, press the throttle
control switch on the bottom of the
switch(
18). The engine speed
immediately moves to low idle.
Engine speed may also be reduced by pushing
do
wn o
n decelerator pedal (7).