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Specifications
Specifications
Model Numbers
Serial Nos: 314,000,000 and Higher
LZS740PKC524, LZS740PKC604; LZS740PKC724
Systems
Engine
• Engine Specifications: See your Engine Owner's
Manual
• Engine Oil Type: Exmark 4–Cycle Premium
Engine Oil
• RPM: Full Speed: 3750 ±50 RPM (PTO not
engaged) Idle: 1500 ±100 RPM
Tank Type and Refilling
Important: The LPG tank used on this mower
is a special tank with internal baffles designed
for this application.
• Horizontal Tank Specifications:
– Tank Material: Aluminum
– Capacity: 43.5 lb
– Disconnect Coupling: LH ACME Threaded
– Fuel Withdrawal: Vapor
– Fuel Shut-Off Valve: Rotate clockwise to
close.
• Type of Fuel: HD5 grade propane
• New tanks must be properly filled by trained and
qualified personnel.
• Only use tanks recommended by Exmark. Failure
to do so will result in improper operation of the
fuel system.
CAUTION
Under no circumstances should propane
tanks filled beyond 80% capacity be used in
service.
The use of overfilled tanks may result in the
release of highly concentrated and extremely
flammable liquid propane. Refer to the Safety
section.
Note: Use of a "forklift" type liquid withdrawal tank
will result in icing or freezing of the LPG regulator
and prevent the engine from operating. This may
also result in permanent fuel system damage and the
release of highly flammable propane liquid or vapor.
Electrical System
• Charging System: Flywheel Alternator
• Charging Capacity: 20 amps
• Battery Type: BCI Group U1
• Recommended Minimum Battery CCA: 260 CCA
• Battery Voltage: 12 Volt
• Low Voltage Light — RH control panel
• Polarity: Negative Ground
• Fuses:
– 25 amp main fuse
– 25 amp charging system fuse
– 10 amp PTO fuse
– 15 amp accessory fuse
Safety Interlock System
• LCD indicators appear for the PTO, park brake,
drive levers, and operator presence in the message
display on the RH control panel.
• PTO must be disengaged, brake engaged, and
motion control levers out (neutral lock) 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 motion control levers are
moved in or engine will stop.
• Engine will stop if either the left, the right, or
both levers are moved from neutral lock position
while brake is engaged.
Operator Controls
• Steering and Motion Control:
18
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