equipment for eyes, hands, ears and head. Never operate tractor or implements in
bare feet, sandals or sneakers.
13. Checking area for stones, branches and other debris that might be thrown.
14. Ensuring proper lighting is available, sunlight or good artificial lighting.
3.08 - Working Speed
The mowing speed depends on ground conditions, tractor HP, mowing height, and
grass thickness. Only a test run will enable you to gauge the optimal working speed for
your conditions.
Under most conditions a 2 to 6 km/h ground speed is best. As a rule of thumb, and if the
conditions permit, grass dispersion is increased by higher ground speeds.
In order to obtain the best cut possible, always keep the tractor rpm up to the speed
indicated on the mower. When increasing or decreasing mowing ground speed, always
use gear selection, not engine speed. This will maintain the constant maximum blade
speed necessary for a clean cut.
3.09 - Operating Techniques
All of the following factors are important in selecting the proper forward speed:
1. Height of grass.
2. Type of grass.
3. Density of grass.
4. Type of terrain.
5. Grass condition, wet or dry.
This mower has been designed to cut grass with heights from 10 to 20 cm. It is
recommended to avoid cutting grass taller than 25 cm.
For the best results, try cutting the grass at least once per week during growing season.
Tall, dense grass should be cut at low speed, while thin medium grass can be cut at a
faster ground speed.
Always operate PTO at 540 rpm
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. This is necessary to maintain proper blade
speed and obtain a clean cut.
Under certain conditions, tractor tires may roll some grass down and prevent it from
being cut at the same height as the surrounding area. If this occurs reduce the tractor
ground speed but maintain a 540 rpm engine speed. The lower ground speed will permit
the grass to at least partially rebound. Under some conditions grass will not rebound
enough to be cut even, resulting in an uneven appearance. In general, lower cutting
height gives a more even cut with less tendency to leave tire tracks. If cut is still not
satisfactory, cut the area twice.
Mow extremely tall grass twice. On the first pass use a high cutting height. On the
second pass position the mower at the desired height and when practical, mow at a
right angle in travel to the first pass.
O
PERATION
18
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H
URRICANE
H40
O
PERATOR
’
S
M
ANUAL
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Unless you have a special version of the Hurricane H40 designed for tractors with PTO at 1000
or 2000 rpm.