Exmark Quest SP Models 850 - Manual (Page 22)

Operation
than 10% ethanol, premium gasoline, or white
gas because the fuel system could be damaged.
Do Not add oil to gasoline.
Do Not overfill fuel tank. Fill the fuel tank to the
bottom of the filler neck. The empty space in the
tank allows gasoline to expand. Overfilling may result
in fuel leakage or damage to the engine or emission
system (if equipped).
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: The roll bar is an integral and
effective safety device. Keep the roll bar in the
raised and locked position when operating the
mower. Lower the roll bar temporarily only when
absolutely necessary.
1. The knob must be completely latched with the
tabs interlocking as shown in Figure 11 to lock
the roll bar in the raised, operate position.
2. Apply forward pressure to the upper hoop of the
roll bar.
3. Pull the knob and rotate 90° to hold in the
unlatched position to lower the roll bar.
4. To return to the operate position, raise the roll
bar, and then rotate knobs 90° so that the tabs
interlock partially. Apply forward pressure to the
roll bar upper hoop and observe that the knobs
return to the completely latched position.
Figure 11
1. Roll bar upper hoop
2. Knob in “latched” position
3. Pull knob to unlatch
4. Rotate 90° to hold unlatched
5. Knob in “unlatched” position
5. Make sure the knobs are fully engaged with the
roll bar in the raised position. The upper hoop of
the roll bar may need to be pushed forward or
pulled rearward to get both knobs fully engaged
(see Figure 12).
Figure 12
1. Engaged 2. Partially engaged — Do
Not operate with ROPS
in this condition.
Important: Always use the seat belt with the
roll bar in the operate (raised) position. Ensure
that the rear part of the seat is secured with the
seat latch.
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