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OPERATION
TW6072 05/05
Operation Section 4-27
© 2005 Alamo Group Inc.
OPERA
T
ION
10.4 PTO RPM and Ground Speed
Ground speed for mowing will depend upon the height, type, and density of vegetation to be cut.
Recommended speed for efficient mower performance is between 2 and 5 mph. Operate the mower at its full
rated PTO speed to maintain blade speed for a clean cut. Refer to the tractor operator’s manual or the tractor
instrument panel for the engine speed and gear to provide the required PTO and desired ground speed.
Make sure that the mower is operating at its full rated speed before entering the vegetation to be cut. If it
becomes necessary to temporarily regulate engine speed, increase or decrease the throttle gradually.
Ground speed is achieved by transmission gear selection and not by the engine operating speed. The
operator may be required to experiment with several gear range combinations to determine the best gear and
range which provides the most ideal performance from the mower and most efficient tractor operation. As the
severity of cutting conditions increase, the ground speed should be decreased by selecting a lower gear to
maintain the proper operating PTO speed.
OPS-R-0025
Do not exceed the rated PTO speed for the Implement. Excessive PTO speeds can cause
Implement driveline or blade failures resulting in serious injury or death.
(SG-26)
Mow at the speed that you can safely operate and control the tractor and mower. Safe mowing
speed depends on terrain condition and grass type, density, and height of cut. Normal ground
speed range is from 0 to 5 mph. Use slow mowing speeds when operating on or near steep
slopes, ditches, drop-offs, overhead obstructions, power lines, or when debris and foreign objects
are to be avoided.
(SGM-7)
10.5 Operating the Mower
The mower is designed to cut vegetative material up to 2” in diameter. Travel at a speed that allows the
mower sufficient time to cut through the vegetation and maintain the operating speed at 540 rpm to prevent
overloading the mower and tractor and to produce a clean cut. Choose a driving pattern that provides the
maximum pass length and minimizes turning. Remember, sharp blades produce cleaner cuts and require
less power.
Under certain conditions, tractor tires may roll some grasses down preventing them from being cut at the
same height as the surrounding area. When this occurs, reduce the tractor ground speed while maintaining
the operating speed of the mower. A slower ground speed will permit grasses to at least partially rebound and
be cut. Taking a partial cut and/or reversing the direction of travel may also help produce a cleaner cut.
Avoid mowing in the reverse direction when possible. In situations where the mower must be backed to
access areas to be cut, make sure there are no persons or other foreign debris behind the mower before
mowing in reverse. When mowing in reverse, operate the tractor and mower at a much reduced ground
speed to ensure control is maintained of the tractor and cutter.
OPS-R-0026_H
Summary of Contents for RW72
Page 7: ...Safety Section 1 1 2005 Alamo Group Inc SAFETY SECTION...
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Page 75: ...Introduction Section 2 1 2005 Alamo Group Inc INTRODUCTION SECTION...
Page 79: ...Assembly Section 3 1 2005 Alamo Group Inc ASSEMBLY SECTION...
Page 87: ...Operation Section 4 1 2005 Alamo Group Inc OPERATION SECTION...
Page 127: ...Maintenance Section 5 1 2005 Alamo Group Inc MAINTENANCE SECTION...
Page 136: ...TW6072 OM 05 05 P N 00759048C Printed U S A TW 6072 ROTARY MOWER...
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