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3.7 RUN IN – 52” UNITS ONLY
3.7.1 Follow the operation instructions in Section 5 to run the unit. Run the unit with the
blades and blower engaged for 2 minutes. Disengage the blades, stop engine and
wait for all moving parts to stop. Remove key.
3.7.2 Remove the belt cover and check to make sure that the belt is riding near the
center of the flat idler on the idler arm. If the belt is not riding near the center of the
idler, remove the blower, and bend the idler arm slightly. Reinstall the blower and
belt cover and perform steps 1 and 2 again to verify belt position.
4. OPERATION:
4.1 PRE-START
4.1.1 Read the operator’s manual for your mower and familiarize yourself with all
controls before operating the machine. Make sure that you understand the
controls, their locations, their functions, and their safety requirements.
4.1.2 Ensure the blower, belt cover, bags, tube and hood are in good condition,
properly attached, and latched.
Note: When mowing in areas with sandy soil, use low lift blades on the cutting
deck and higher cutting heights to minimize wear on the blower components.
4.2 MOWING
4.2.1 The Ultra Vac blower operates when deck drive is engaged. Be sure that all
persons are clear of the mower deck and blower before engaging the cutting
blades. Set the throttle to “midway” position. Pull outward on the PTO switch to
the “ROTATE” position. Accelerate to full throttle to begin mowing.
4.2.2 To disengage the deck drive and blower, set the throttle to “midway” position.
Push in on the PTO switch to the “STOP” position to stop the cutting blades and
blower. The cutting blades will require a slightly longer amount of time to come to
a complete stop when the blower is installed on the deck.
4.2.3 To remove the bags, shut off deck drive, stop the engine and wait for all moving
parts to stop. Open the hood and remove the bags by lifting up on the rear of the
bag, then unhooking the front clip. Empty bags by inverting them.
4.2.4 Reinstall bags, close and latch the hood before continuing mowing.
4.3 BAGGER REMOVAL FOR SIDE DISCHARGE:
4.3.1 Shut off the deck drive, stop engine and wait for all moving parts to stop. Remove
key.
4.3.2 Remove the discharge tube by releasing the latch at the blower. Slide the tube
off the blower outlet and remove the upper end from the hood.
4.3.3 Remove the Belt cover by loosening the knobs. For 60” units the outboard knob
does not need to be removed completely to remove the belt cover.
CAUTION
POTENTIAL HAZARD
♦ The deck sheave will become very hot
WHAT CAN HAPPEN
♦ Touching a hot deck sheave can cause severe burns.
HOW TO AVOID THE HAZARD
♦ Allow the deck sheave to cool completely before
removing the belt.
4.3.4 Pull the idler release handle and remove the belt from the upper groove of the
deck sheave.
4.3.5 Unlatch the front end of the blower. Pivot the blower back and lift it off the deck.