Lastec 521EH, Owner'S Manual, Page: 42 / 52

Operating Procedures
Ground Speed
4
4-6 Lastec//021819 Operating Procedures
Use a High Lift Blade when the conditions are extremely wet or heavy. The High Lift
Blades will create greater lift that may be needed in difficult cutting conditions. Additional
deck cleaning may be required when using High Lift Blades.
Gator Mulching Blade (Part No. P322)
Mulching blades are designed for use with a mulching (discharge block-off) plate or with a
complete mulching system. These blades feature a high lift, “double-cut” edge for quick,
thorough shredding of grass clippings, leaves and debris.
4.5 Ground Speed
Caution
CAUTION!

Excessive ground speed over rough terrain can cause structural damage to the
Articulator.

Always drive cautiously and reduce ground speed when driving over rough terraine.
Recommended ground speed range for the Articulator is 3 to 5 MPH. Your speed may
vary within this range as your cutting conditions vary. Excessive ground speed while trav-
eling over rough terrain can cause the Articulator to bounce excessively, which in turn
increases the stress on its structure and the likelihood of damage to the machine. Thus,
while a higher ground speed is acceptable for wide, open, flat areas, a slower ground
speed is required for rough or contoured areas.
Always adhere to the drive unit manufacturer's recommended ground speed range
when operating the Articulator.
4.6 Cutting In Reverse
Warning
WARNING!

Always ensure the area behind the drive unit is clear of people or obstacles before
backing the Articulator and drive unit.
Be sure entire area around the drive unit and Articulator are clear of people or obstruc-
tions before traveling in reverse.
If you are not familiar with backing techniques, practice in an open area to develop the
required skills before operating the Articulator.
When backing up with the articulator, with the blades on or off, you must carefully watch