NMC-WOLLARD MB-4 200-DF, Operation, Maintenance And Parts Manual

Page: 40 / 321

2.2.5 Heater Operation
1. Change lever position to direct air from
windshield to cab.
2. Pull heater temperature knob on dash
to increase air temperature.
2.3 STARTING THE ENGINE
Several things affect engine start, such as
battery power, starter motor performance,
and oil viscosity.
The Shift-O-Matic should always be in the
neutral position before starting the engine,
or when the vehicle is parked and the en-
gine is running.
Starting a cold engine:
Do not use ether. Engine
equipped with electric heater starting
and ether may cause explosion and seri-
ous injury.
1. Turn the start key to the “IGN” position
and keep it there for 15 seconds.
2. Adjust the engine speed control to the
maximum speed position.
3. Turn the start key to the “START” posi-
tion in order to engage the starter mo-
tor. Allow the start key to return to the
“IGN” position, when the engine starts.
Then adjust the engine speed control to
give an even idle speed.
4. If the engine does not start in 15 sec-
onds, turn the start key to the “IGN” po-
sition and hold it there for 10 seconds.
Then engage the starter motor again.
5. Observe instruments to be sure each is
working. Do not operate engine if oil
pressure fails to rise or if voltmeter
does not show any charge.
Starting a warm engine:
1. Adjust the engine speed control to the
quarter open position.
2. Turn the start key to the “START” posi-
tion to engage the starter motor.
3. Allow the start key to return to the “IGN”
position, as soon as the engine starts.
4. Always ensure that the engine and
starter motor are stationary before the
starter motor is engaged again.
2.4 HARD STARTING
If the tractor fails to start in the normal way,
the engine probably needs service.
NOTE: The tractor cannot be started by
towing or pushing.
When using a battery
booster, observe proper polarity or you
may damage the electrical system and
battery.
A worn out or badly sulfated battery will pro-
duce numerous problems that cannot be
corrected until the battery is replaced.
M200 MB4 Tow Tractor Manual No. 42975
PAGE 2-4
JULY 31, 2004
FIGURE 2-4. HEATER CONTROL