Specifications; Model Numbers; Systems - Exmark NAVIGATOR NV640KC Operator's Manual

Specifications

Model Numbers

Serial Nos: 312,000,000 and Higher
NV640KC; NV740KC; NV730EKC

Systems

Engine
• Engine Specifications: See your Engine Owner's
Manual
• Engine Oil Type: Exmark 4–Cycle Premium
Engine Oil
• RPM: Full Speed: 3600 ±50 RPM (No Load) Idle:
1500 RPM
Fuel System
• Capacity: 7.5 gal. (28 L)
• Fuel Recommendations:
– For best results, use only clean, fresh, unleaded
gasoline with an octane rating of 87 or higher
((R+M)/2 rating method).
– Oxygenated fuel with up to 10% ethanol or
15% MTBE by volume is acceptable.
– Do Not use ethanol blends of gasoline (such
as E15 or E85) with more than 10% ethanol
by volume. Performance problems and/or
engine damage may result which may not be
covered under warranty.
– Do Not use gasoline containing methanol.
– Do Not store fuel either in the fuel tank or
fuel containers over the winter unless a fuel
stabilizer is used.
– Do Not add oil to gasoline.
• Fuel Filter:
– All units except Kohler EFI:
Kohler P/N 24 050 13
– Kohler EFI:
Kohler P/N 25 050 42
• Fuel Shut-Off Valve: 1/4 turn increments in-line
valve by fuel filter.
Electrical System
• Charging System: Flywheel Alternator
• Charging Capacity:
– All units except Kohler EFI: 15 amps
– Kohler EFI: 20 amps
• Battery Type: BCI Group U1
• Battery Voltage: 12 Volt
• Polarity: Negative Ground
• Fuses: Two 20 amp and one 30 amp blade type
• Safety Interlock System:
– PTO must be disengaged, brake engaged, and
speed control lever in neutral position to start
engine. (It is not necessary for the operator to
be in the seat to start the engine.)
– Operator must be in seat when PTO is
engaged, brake is disengaged, or speed control
lever is moved out of neutral or engine will
stop.
– Engine will stop in the following conditions:
◊ If the speed control lever is moved from
neutral position while brake is engaged.
◊ If the PTO is engaged while the hopper
is tilted up.
Operator Controls
• Steering and Motion Control:
– Speed Control lever, located on RH console,
sets maximum forward speed.
– Steering levers, centered in front of the seat,
control the speed and direction of travel of
the respective drive wheels.
– Moving speed control lever rearward to the
neutral position places the drive system in
neutral.
Note: The unit may be moved in reverse
while the speed control is in the neutral
position by pulling back on the steering levers.
15
Specifications