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ASSEMBLY
RMB 1660 11/10 Assembly Section 3-3
© 2010 Alamo Group Inc.
ASSEMBLY
TRACTOR PREPARATION
Fitting Operator Guard
Use tractor with safety glass windows if possible and fit Operator guard using the hooks provided. Shape mesh
to cover all vulnerable areas. Remember the driver must be looking through mesh and/or poly carbonate
glazing when viewing the flail head in any working position - unless the tractor/cab manufacturer can
demonstrate that the penetration resistance is equivalent to, or higher than, that provided by mesh/poly
carbonate glazing.
Wheel Width: Set wheel widths as wide as possible.
Lift Links: Adjust lift links until they are equal length.
Tractor Ballast: It is imperative when attaching ‘third-party’ equipment to a tractor that the maximum possible
stability of the machine and tractor combination is achieved – this can be accomplished by the utilization of
‘ballast’ in order to counter-balance the additional equipment added.
Front weights may be required to place 20% of total outfit weight on the front axle for stable transport on the
road and to reduce ‘crabbing’ due to the drag of the cutting unit when working on the ground.
Rear weights may be required to maintain a reasonable amount of rear axle load on the opposite wheel from
the arms when in work; for normal off-ground work i.e. hedge cutting this should be 20% of rear axle weight or
more for adequate control, and for ground work i.e. grass mowing with experienced operators, this can be
reduced to 10%. All factors must be addressed in order to match the type and nature of the equipment added
to the circumstances under which it will be used. The center of gravity on a RMB 1660 will constantly change
as the boom or cutting attachment moves. Maintaining proper balance during operation and transport is critical.
Factors that affect stability:
• Center of gravity of the tractor/machine combination.
• Geometric conditions, e.g. position of the cutting head and ballast.
• Weight, track width and wheelbase of the tractor.
• Acceleration, braking, turning and the relative position of the cutting head during these
• operations.
• Ground conditions, e.g. slope, grip, load capability of the soil/surface.
• Rigidity of implement mounting.