Modern RAPTOR, Operator'S Manual, Page: 23 / 99

23 15’ Raptor
15’ Raptorrr - 23
OPERATION SECTION
Tractor Horsepower
the horsepower required to operate the cutter depends on several operating factors including the
vegetation to be cut, terrain condition, operator experience, condition of the cutter and tractor, and
others. For most mowing conditions, the RaPtORRR cutter requires a tractor with a minimum of
50-75 HP. Operating the cutter with a tractor that does not have adequate power may damage the
tractor engine. exceeding 100 HP for a 540 RPm drive and 140 HP for a 1000 RPm drive may cause
cutter damage by overpowering the unit in heavy cutting conditions.
Drawbar
Constant Velocity and Standard Driveline.
Position the length of the drawbar from the end of the
tractor PtO shaft to the drawbar hitch hole according
to the operating speed of the cutter. If the cutter is
a 540 RPm unit, position the drawbar length from
shaft end to hitch hole at 14”. For 1000 RPm
cutters, set the drawbar length at 16” for 21 spline
1-3/8” cutters and at 20” for 1-3/4” 20 spline
cutters.
OPERaTION
FL15M 02/07 Operation Section 4-6
© 2007 Alamo Group Inc.
OPERa
TION
3.3 Tractor Horsepower
The horsepower required to operate the mower depends on several operating factors including the vegetation
to be cut, terrain condition, operator experience, condition of the mower and tractor, and others. For most
mowing conditions, the FL10 mower requires a tractor with a minimum of 40 HP and the FL15 mower requires
a tractor with a minimum of 50 HP. Operating the mowe r with a tractor that does not have adequate power
may damage the tractor engine. Exceeding 100 HP for a 540 RPM drive and 140 HP for a 1000 RPM drive
may cause mower damage by overpowering the unit in heavy cutting conditions.
3.4 drawbar
Constant Velocity and Standard driveline .
Position the length of the drawbar from the end of the
tractor PTO shaft to the drawbar hitch hole according
to the operating speed of the mower. If the mower is
a 540 RPM unit, position the drawbar length from
shaft end to hitch hole at 14”. For 1000 RPM
mowers, set the drawbar length at 16” for 21 spline
1-3/8” mowers and at 20” for 1-3/4” 20 spline
mowers.
Equal angle driveline adjustment Procedure
(Not available on 1000 RPM 1-3/4”-20 mowers)
Set drawbar length measured from PTO shaft end to hitch hole at 14” for 540 and 16” for 1000 RPM operating
speeds. Position carrier bearing to align driveline in as straight of line as possibl e. Make certain that the
Yokes on the Driveline and the Equal Angle Jackshaft are aligned with each other, otherwise the drivelines will
not phase properly, possibly causing damage to your machine.
Tongue style may vary
OPERATION SECTION