Pre-Start; Operating Instructions - Exmark Frontrunner 720,000 & Higher Serial Nos. Operator's Manual

Drive Wheel Release Valves
Located on the top left front corner of hydrostatic
pumps.
Drive wheel release valves are used to release the
hydrostatic drive system to allow the machine to be
pushed without the engine running.
With a wrench, turn both valves one turn
counterclockwise to release drive system. Turn
clockwise to reset system. Do Not overtighten. Do
Not tow machine.
• For 27HP Kohler & 31HP Briggs & Stratton
Units: Use a 5/8 inch wrench to turn the valves.
• For 23HP Kohler Units: Use a 7/16 inch wrench
to turn the valves.
PTO Engagement Switch
Located on right fuel tank.
Switch must be pulled out to the "ROTATE"
position to engage the blades. Switch is pushed in to
the "STOP" position to stop the blades.
Hydraulic Lift Switch
Located on right fuel tank console.
The hydraulic lift switch is used to raise and lower
the mower deck.
Push the front portion of the hydraulic lift switch
down to raise the mower deck to the desired height.
Push the rear portion of the hydraulic lift switch
down to lower the mower deck to the desired height.

Pre-Start

Fill fuel tanks. For best results use only clean, fresh
regular grade unleaded gasoline with an octane rating
of 87 or higher. Regular grade leaded gasoline may
also be used; however, combustion chamber and
cylinder head will require more frequent service. See
Engine Owner's Manual.
Do Not add oil to gasoline.
Do Not overfill fuel tank. Never fill the fuel tank so
that the fuel level rises above a level that is 1/2 inch
(13 mm) below the bottom of the filler neck to allow
for fuel expansion and prevent fuel spillage.
Make sure you understand the controls, their
locations, their functions, and their safety
requirements.
Refer to the Maintenance section and perform all the
necessary inspection and maintenance steps.

Operating Instructions

Raise the Rollover Protection System
(ROPS)
Important: Lower the roll bar only when
absolutely necessary.
1. Remove the hairpin cotter pins and remove the
two roll bar pins (Figure 5).
2. Raise the roll bar to the upright position and
install the two pins and secure them with the
hairpin cotter pins (Figure 5).
Important: Always use the seat belt with the
roll bar in the raised position. Ensure that the
rear part of the seat is secured with the seat
latch.
1. Roll bar
2. Raised position
19
Operation
Figure 5
3. Pin
4. Hairpin cotter pin