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1-1 INTRODUCTION
We are pleased to have you as a Bush Hog cus-
tomer. Your Model GT 48 Rotary Cutter has been
carefully designed to give maximum service with
minimum down time.This manual is provided to give
you the necessary operating and maintenance
instructions for keeping your rotary cutter in top
operating condition. Please read this manual thor-
oughly. Understand what each control is for and how
to use it. Observe all safety precautions decaled on
the machine and noted throughout the manual for
safe operation of implement. The information must
be explained to those users or operators who cannot
read. If any assistance or additional information is
needed, contact your authorized Bush Hog dealer.
1-2 DESCRIPTION
The GT 48 Rotary Cutter is equipped with a 13 H.P.
Honda engine with electric start and spark arrestor.
It is designed primarily for use with 4 wheeled, all
terrain vehicles (ATVs) and garden tractors. It
attaches to the towing vehicle drawbar using a ball
hitch and pin. The 48”, uplift blade bar assembly will
cut pasture grass and weeds up to 3/4” diameter.
This model rotary cutter is not meant for precision
yard mowing or heavy brush cutting.
The cutter is powered by a vertical shaft, gasoline
engine. Belt drive transfers power from the engine
through a centrifugal clutch to the blade. Optional
front and/or rear rollers may be installed to help pre-
vent scalping on uneven terrain.
Table 1-1 Technical Specifications
Cutting Width . . . . . . . . . . . . . . . . . . . . . . . . . . . .48”
Transport Width . . . . . . . . . . . . . . . . . . . . . . . . . .64”
Cutting Height . . . . . . . . . . . . . . . . . . . . . . . . .1” - 6”
Cutting Capacity . . . . . . . . . . . . . . . . . .3/4” Diameter
Type Hitch . . . . . . . . . . . . . . . . . .Swivel Ball and Pin
Deck Thickness . . . . . . . . . . . . . . . . . . . . . 11 Gauge
Wheels . . . .13” x 5” Rib Solid Tire or 13.5” x 6” High
Flotation Pneumatic
Drive . . . . . . . . . . . . . . . V-Belt, Kevlar Construction
Weight . . . . . . . . . . . . . . . . . . .425 lbs. With Wheels
Engine . . . . . . . . . . . . . . . . . . . . . . . .13 H.P. Honda
Blade Tip Speed . . . . . . . . . . . . . . . . . . .16,450 fpm
NOTE: Electric start runs off ATV electrical system.
SECTION I
INTRODUCTION AND DESCRIPTION
NOTE
All references made to right, left, top, bot-
tom, front or rear are as viewed facing the
direction of travel with implement properly
attached to towing vehicle.
8
Figure 1-1
Tongue
Swivel Ball Hitch
Belt Adjustment Bolt
Cutting Height Adjustment
Axle Assembly with
Pneumatic Tires
Leveling Rod
13 H.P. Engine
Deck Enclosed Side