MacDon M105 Assembly Instructions Manual page 46

c. Cold Start - Engine temperature 20°F
(-7°C) or lower.
NOTE
Grid heater will not operate if engine
temperature is 20˚F (-6°C) or higher.
J
H
A
G
1. Set throttle (G) to START position - "fully
back" (low idle).
2. Turn ignition key (A) to RUN.
3. Single loud tone sounds, engine warning
lights illuminate
"HEADER DISENGAGED" and "IN PARK".
4. Grid heater light (J) on CDM will cycle
ON / OFF / ON after 2 seconds for a pre-set
length of time. The operating period for the
grid heater and light will change depending
engine temperature.
5. When grid heater light goes out, sound horn
(H), turn key to START, and crank engine
until it starts. Leave throttle at IDLE.
IMPORTANT
If engine fails to start within 15
seconds, cease cranking and wait two
minutes to allow the starting motor to
cool before attempting to re-start the
engine.
6. If engine fails to start, repeat steps 1 to 4.
7. After start-up, the engine will cycle through a
period where it appears to labor.
IMPORTANT
Do not operate engine above 1500
rpm until engine temperature gauge is
above 100°F (38˚C).
Form 169558
PRE-DELIVERY CHECKS
and CDM displays
Throttle is non-responsive during this
time as engine is in "warm up" mode.
This mode lasts from 30 seconds to 3
minutes depending on temperature.
After engine stabilized and idling
normally, throttle becomes active.
IV. CDM DISPLAY
L
Check CDM display (D) is working by pushing
SELECT (C) on CDM or SELECT button (K) on
GSL.
V. ENGINE SPEED
Check engine rpm on CDM at (L).
IDLE RPM
1100
VI. ALTERNATOR CHARGE RATE
Push SELECT switch (C) on CDM until VOLTS
displays at (D).
Reading should be 13.8 - 15.0 VOLTS.
44
NOTE
D
C
MAX RPM (No Load)
2270 - 2330
Revision A
K