Bush Hog SM 60 - Manual (Page 10)

TABLE 1-1 SPECIFICATIONS
(For Cast Iron Pump & Motor Only)
MODEL NUMBER
SM60R SM160R
Required PTO Speed 540 rpm 1000 rpm
Pump Output 21.4 gpm 19.1 gpm
Motor Speed 1101 rpm 1182 rpm
Blade Tip Speed 17,300 18,570
ft./min. ft./min.
Blade Type 1/2” x 3” 1/2” x 3”
Dble. Edge Dble. Edge
Cutting Width 60” 60”
Max. Reach from
Center of Tractor
145” 145”
Transport Width 120-1/2” 120-1/2”
Weight 1580 lbs. 1580 lbs.
Hydraulic Oil Capacity 35 gal. 35 gal.
Maximum Hydraulic 3200 psi 3200 psi
System Pressure
Hitch Size Cat. II Std. Cat. II Std.
Cat. II & III Cat. II & III
Quick Hitch Quick Hitch
7
Motor
1102 RPM at
540 RPM
Relief Valve
3200 PSI
Pump 21.4 GPM
at 540 PTO RPM
Suction Strainer
Filter
10 Micron
with 15 PSI Bypass
SECTION II
PREPARATION FOR USE
2-1 MOUNTING CUTTER ON TRACTOR
A. Check air pressure in tractor tires.
IT IS CRITICAL FOR STABILITY THAT
TRACTOR TIRES CARRY PROPER PRES-
SURE. REFER TO TRACTOR OPERATOR’S
MANUAL.
B. Connect cutter to tractor 3-point hitch. Adjust
stabilizer bars, sway blocks, or chains. Refer to
tractor operator’s manual.
USE OF THIS MACHINE ON TOO SMALL A
TRACTOR CAN CAUSE TRACTOR UPSET.
DO NOT USE THIS MACHINE ON A TRAC-
TOR WEIGHING LESS THAN 6000 LBS.
(2722 KG) NOT INCLUDING BALLAST. IT IS
RECOMMENDED THAT FRONT BALLAST
BE USED FOR ADDED STEERING STABILI-
TY. THIS MACHINE REQUIRES 50 PTO
HORSEPOWER.
C. If valve kit is used, mount valves on tractor as
desired. If optional valve mounting brackets are
used, attach brackets and valve to tractor as
described in paragraph 5-6. Make certain all hoses
are free of sharp bends, creases, or moving parts. It
is recommended that valves be mounted on right
side of tractor.
D. Connect hoses to hydraulic quick disconnects
on rear of tractor.
E. Raise and lower implement to determine the
shortest distance between the tractor PTO shaft and
pump input shaft. Stop tractor leaving implement in
position of shortest distance. Block implement in
position.
CAUTON
CAUTON
Fig. 1-2 Hydraulic Circuit (Cast Iron Pump & Motor)