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

Page: 41 / 321

Always check battery condition and connec-
tions before condemning other tractor sys-
tems.
2.4.1 Jump Starting The Tractor
Cold weather reduces battery efficiency.
For example, at 32
°
F, battery capacity is re-
duced to 65%, and at 0
°
F, capacity is re-
duced to 40%.
A 12-volt booster battery can be connected
in parallel with battery on the tractor to aid
in cold weather starting. Heavy duty jumper
cables will supply significantly more current
than cheap cables.
Battery gas can explode.
Keep sparks and flames away from bat-
teries. Always remove black (negative)
battery clamp first and replace it last.
Never let cable ends touch.
1. To jump start a tractor using another
vehicle, make sure the two vehicles are
not touching each other.
Wear protective glasses, and do not
lean over battery when making con-
nections.
2. Loosen vent caps from BOTH batteries,
if present.
In very cold weather, check for frozen
electrolyte or no visible electrolyte. If ei-
ther condition exists, warm the battery
until it reaches a temperature of at least
40
°
F before attaching booster. This will
reduce chance of battery rupture or ex-
plosion.
NOTE: Charging vehicle should not be run-
ning.
Connect the POSITIVE jumper cable
clamps to the POSITIVE posts of the two
batteries. Then connect the NEGATIVE
jumper clamp to the good battery.
Finally, place the other NEGATIVE
jumper clamp on a solid unpainted metal
bolt or bracket located on the disabled
machine.
Do not make the connec-
tion at the discharged battery because a
spark is caused when attaching the
clamp.
Start vehicle having the good battery,
then crank starter of disabled vehicle. Do
not over-crank.
Remove jumper cables in order applied.
2.5 DRIVING THE TRACTOR
When the engine is warmed up, the tractor
is ready for work. Use lights as required.
Release the tractor and trailer (if towing
a trailer) parking brake and apply foot
brake.
1. You can start out in any gear depend-
ing on load pulled and speed desired.
If you pick a gear that is too high the
engine may lug or stall.
The following performance characteristics
are provided to aid in your particular appli-
cation. Safety issues should be consid-
ered. Some trial and error may be advised.
Each operator will get used to this transmis-
sion and learn to pick the appropriate gear
and when to shift.
Gear Approximate MPH
Drawbar Pull (LBS)
F1 16000 2
F2 11000 3
F3 9000 3.5
F4 6000 5
F5 4125 7.25
F6 2200 13
M200 MB4 Tow Tractor Manual No. 42975
PAGE 2-5
JULY 31, 2004