Kubota M6H-101, Operator'S Manual

Page: 72 / 202

3. Engine low temperature regulation
In order to prevent engine damage due to rapid
acceleration, if starting the engine when coolant
temperature is approximately 0
℃
(32
℉
) or below, the
engine rpm will be kept at approximately 1400 for up to
3 minutes, and the operator will be informed by
indicator and intermittent buzzer. The regulation time
varies in response to the coolant temperature.
During regulation, perform warm-up operation without
using the accelerator. After regulation, the engine rpm
can be gradually increased. When regulation has been
completely released, the indicator will go off and the
buzzer will stop.
(1) Low temperature regulation indicator
4. DEF/AdBlue
®
freeze warning
When operating in cold weather, the DEF/AdBlue
®
is
automatically thawed while the engine is running.
However, in weather conditions of under -30
℃
(-22
℉
),
the DEF/AdBlue
®
cannot be completely thawed and
thus, an error/warning code
“ENG P-208B”
appears on
the instrument panel's LCD screen.
If the error/warning code
“ENG P-208B”
appears on the
screen, stop the engine and restart it after 10 seconds.
After restarting the engine, the error/warning code
“ENG
P-208B”
will disappear and the thawing of the DEF/
AdBlue
®
will resume.
In case the error/warning code
“ENG P-208B”
remains
on the screen even after restarting the engine several
times, contact your local KUBOTA Dealer.
(1) Error/warning code
STOPPING THE ENGINE
IMPORTANT :
• When the engine is stopped-shutdown, DEF/
AdBlue
®
flow is reversed in the DEF/AdBlue
®
lines and related piping and returned back into
the DEF/AdBlue
®
tank after cooling the DEF/
AdBlue
®
injector.
The SCR system continues working several
minutes after engine shutdown to complete this
purge process.
• Do not turn the machine main battery power off
to the engine until the DEF/AdBlue
®
return
cycle purge process is completed. Turning off
the main battery power to the engine and
aftertreatment system prior to completion may
damage the system or cause it to malfunction.
NOTE :
• If removing the key does not stop the engine,
consult your local KUBOTA Dealer.
• Some noise heard for a couple of minutes after
the engine has been stopped. This is because
DEF/AdBlue
®
is still flowing through the circuit
to cool down the DEF/AdBlue
®
injector.
1. After slowing the engine to idle, wait 3 to 5 minutes
for turbo to slow down and then turn the key to
“OFF” .
2. Remove the key.
WARMING UP THE ENGINE
WARNING
To avoid personal injury or death:
• Be sure to set the parking brake during warm-
up.
• Be sure to set all shift levers to the “NEUTRAL”
positions and to place the PTO lever in the
“OFF” position during warm-up.
OPERATING THE ENGINE OPERATING THE ENGINE IN FREEZING CONDITIONS
66
M6S-111,M6L-111,M6H-101