Kubota M4N-071 Operator'S Manual Download

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completely released, the indicator will go off and the
buzzer will stop.

(1) Low temperature regulation

indicator

3. DEF/AdBlue

freeze warning

(M5N-091, M5N-111)

When operating in cold weather, the DEF/AdBlue

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 :
M5N-091, M5N-111

• 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 PTO clutch control
switch in “OFF” position during warm-up.

For 5 minutes after engine start-up, allow the engine to
warm up without applying any load; this is to allow oil to
reach every engine part. If load should be applied to
the engine without this warm-up period, trouble such as
seizure, breakage or premature wear may develop.

1. Warm-up and transmission fluid at

low temperature range

Hydraulic  oil  serves  as  transmission  fluid.  In  cold
weather, the oil may be cold with increased viscosity.
This  can  cause  delayed  oil  circulation  or  abnormally
low hydraulic pressure for some time after engine start-
up.  This,  in  turn,  can  result  in  trouble  in  the  hydraulic
system.
To  prevent  the  above,  observe  the  following
instructions:
Warm  up  the  engine  at  about  50%  of  rated  rpm
according to the following table:

OPERATING THE ENGINE

OPERATING THE ENGINE IN FREEZING CONDITIONS

M4N-071, M5N-091, M5N-111