Operation; Attaching; Detaching; Operating Techniques & Tips - Ventrac HP720 Owner/Operator's Manual & Parts List

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Attaching:

1. Drive the tractor slowly forward into the hitch arms of the mower. Align the lift arms
with the mower hitch arms by raising or lowering the front hitch and complete
the engagement. Note: Mower arms may be too low to engage tractor hitch arms
when mower cutting height is set in a low position. Set cutting height to the highest
position.
2. Once completely engaged, close the front hitch locking lever.*
3. Engage the parking brake and shut off engine.
4. Place attachment belt over the outside groove of the PTO drive pulley on the tractor.
Ensure the belt is properly seated in each pulley.
5. Engage the PTO spring tension lever.*
6. Engage the weight transfer system as desired.*
Note: It is recommended for most mowing operations that the weight transfer system be
fully engaged when using the mower deck. Adjust as required.

Detaching:

1. Park the tractor on a level surface and set the parking brake.
2. Lower the mower to the ground.
3. Shut off tractor engine.
4. Disengage the PTO spring tension lever.*
5. Remove the attachment belt from the PTO drive pulley on the tractor.
6. Disengage the hitch locking lever.*
7. Restart the tractor and slowly back away from the mower.
*Refer to tractor manual for operation of controls.
Operating Techniques and Tips:
Be sure to select or confirm that the mower is set to cut the height that you prefer.
Setting is done by lifting the handle into the catch slot, pulling the handle outward and
moving the mechanism to another position on the adjustment scale. Cutting height
range is approximately 1-3/4 to 4-3/4 inches. After selection has been engaged, release
the handle from the catch slot and return it to a horizontal position. Never adjust cutting
height with PTO engaged.
Operator must be sitting on the tractor seat before the PTO can be engaged. The tractor
engine should be running between 2,000 and 3,000 RPM before engaging the PTO
switch. Near full engine RPM (3,600) is recommended for most mowing. If a good cut
can be maintained and there is sufficient power, reducing the engine speed by 200 or
300 RPM will result in improved fuel economy and reduction in the wear-and-tear on the
equipment.

OPERATION

Operating Instructions
C-1

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This manual is also suitable for:

Hm720Hm600

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