Cold Weather Starting Of The Engine; Stopping The Engine; Warming Up Of The Engine; Warm-Up Of The Engine And Transmission Oil In The Low Temperature Range - Kubota L2501 Operator's Manual

COLD WEATHER STARTING OF THE ENGINE

10. Turn the starter key to the "PREHEAT" position and
hold it for the preheating.
For the appropriate preheating time, refer to the
following table.
Temperature
Over 0 ℃ (32 ℉)
0 ℃ to -5 ℃
(32 ℉ to 23 ℉)
-5 ℃ to -15 ℃
(23 ℉ to 5 ℉)
NOTE :
• Glow-plug-indicator (3) comes on while
engine is being preheated.
11. Turn the starter key to the "START" position and
release it when the engine starts.
IMPORTANT :
• Because of safety devices, the engine will
not start except the following conditions:
– PTO-gear-shift-lever is placed in the
"OFF" position.
– Speed-control-pedal is placed in the
"NEUTRAL" position.
– Clutch pedal is disengaged.
In cold weather, if the engine fails to start after 10
seconds, turn off the starter key for 30 seconds.
Then repeat step 9. and step 10.
(See COLD WEATHER STARTING OF THE
ENGINE on page 41)
12. Check to see that the engine-oil-pressure-lamp and
the electrical-charge-lamp are "OFF".
If the lamps on the Easy Checker
immediately stop the engine and determine the
cause.
13. Release the clutch pedal.
COLD WEATHER STARTING OF
THE ENGINE
When the ambient temperature is as follows and the
engine is very cold, you may fail to start the engine.
Ambient temperature
To protect the battery and the starter, make sure not to
turn the starter continuously for more than following
seconds.
Continuous turning limit of the starter
L2501
Preheating time
2 sec. to 3 sec.
5 sec.
10 sec.
™
is still on,
below -5 ℃ (23 ℉)
30 seconds

STOPPING THE ENGINE

1. After slowing the engine to idle, turn the starter key
to the "STOP" position.
2. Remove the starter key.
NOTE :
• If the starter key does not stop the engine,
consult your local KUBOTA Dealer.

WARMING UP OF THE ENGINE

WARNING
To avoid personal injury or death:
• Be sure to set the parking brake during warm-
up of the engine.
• Be sure to set all shift levers to the "NEUTRAL"
positions and to place the PTO-gear-shift-lever
in the "OFF" position during warm-up of the
engine.
For 5 minutes after the engine start-up, allow the
engine to warm up without applying any load. Allowing
the engine to warm up is to allow the oil to reach every
engine-part. If the load should be applied to the engine
without the warm-up period of 5 minutes, trouble such
as seizure, breakage, or premature wear may develop.
1. Warm-up of the engine and
transmission oil in the low
temperature range
IMPORTANT :
• Do not operate the tractor under full load
condition until it is sufficiently warmed up.
Hydraulic oil serves as transmission fluid. In cold
weather, the oil may be cold with increased viscosity.
The oil with increased viscosity can cause delayed oil
circulation or abnormally low hydraulic pressure for
some time after engine start-up. Delayed oil circulation
or abnormally low hydraulic pressure in turn can result
in trouble in the hydraulic system. To prevent the
trouble in the hydraulic system, check the following
instructions.
Warm up the engine at about 50% of rated rpm
according to the following table.
Ambient temperature
Above 0 ℃ (32 ℉)
0 ℃ to -10 ℃
(32 ℉ to 14 ℉)
-10 ℃ to -20 ℃
(-14 ℉ to -4 ℉)
Below -20 ℃ (-4 ℉)
OPERATING THE ENGINE
Warm-up time requirement
At least 10 minutes
10 minutes to 20 minutes
20 minutes to 30 minutes
More than 30 minutes
41