Assembly - Bush Hog Squealer SQ142 Operator's Manual

5-1 ASSEMBLY

A. Attach single-holed end of A-frame struts to
holes in mounting brackets using 5/8" x 1-3/4" cap-
screws, 5/8" SAE flat washers, spacer bushings and
locknuts. Locknuts should be tightened to firmly hold
the flat washers against the bushings. This arrange-
ment allows the struts to rotate freely on the bushings
between the washers and the hitch lugs. The A-frame
struts have a slight bend (about 15°) in the upper area
which allows the upper portion of the struts to stand up
straight when the lower section is angled slightly
toward the front of the cutter. (Figure 5-1)
A-frame struts must be oriented properly so that
the holes in the upper portion are vertically in
line with the lower hitch pins.
B. Hold pivot arm fork with fork around A-frame
struts near the lower hole at the top of the A-frame
struts (pointed end of pivot arm fork should face
toward rear of cutter with sharp point on top
side). Place upper quick hitch bushing between A-
frame struts and install 3/4" x 5-1/2" capscrew
through bushings, A-frame struts and quick hitch
bushing, securing with 3/4" locknut. Tighten locknut
until it bottoms on adjacent spacer bushing.
C. Install double-holed end of yokes to pivot arm
fork by placing a wear bushing (slit along length of
bushing) inside the oblong hole in the pivot arm
forkand then sandwich fork with yokes placed on
either side. Connect assembly with 3/4" x 2-1/2" cap-
screw placed through first hole in yoke and secure
with 3/4" locknut. Tighten locknut until it bottoms on
yoke face.
D. Place another wear bushing between the yokes
in line with the second hole on the yokes and install
a 3/4" x 2-1/2" capscrew through the hole. Make
sure that the bushing is located under the
angled edge of the pivot arm weldment; other-
A-Frame 3/4" x 5-1/2"
Bolt, Bushings
& Locknut
5/8" x 1-3/4" Bolts, Flat
Washers, Bushings &
Locknuts
DEALER ASSEMBLY
Figure 5-1
Pivot Arm Fork
5/8 x 2" Bolt, Lockwasher
and Nut (Both Ends)
Adjusting Strap
Clutch Shield
Lift Pin
SECTION V
wise, damage to cutter could occur during oper-
ation. Secure using a 3/4" locknut. Tighten locknut
until it bottoms on yoke face.
E. Position tailwheel frame arms inside of attach-
ing lugs on cutter deck (behind gearbox) as shown
in Figure 5-1. On models SQ142 through SQ172
position free ends of yokes outside of attaching lugs
and place a yoke bushing inside of holes on yokes
and a 5/8" SAE washer on the outside of the yokes.
On model SQ184 position free ends of yokes inside
of tailwheel frame and place a yoke bushing inside
of holes on yokes and a 5/8" SAE washer on the
intside of the yokes. Align holes in tailwheel frame,
lugs, yokes/bushings, and washer and connect
them using a 5/8" x 2-1/2" capscrew. Secure using
a 5/8" locknut and tighten until nut is very snug
while allowing tailwheel frame to be rotated with
moderate force.
F. Fasten clutch shield and mount bracket as
shown in drawing. Pivot bolts should be tight
enough to prevent rattling, but still permit folding.
G. Remove temporary fill plug from gearbox
and discard. Fill gearbox with EP80-90 gear oil.
Capacity of SQ142 and SQ148 is 1.6 quarts (1.5L),
SQ160 and SQ172 is 2 quarts (1.9L). Capacity of
SQ 184 is 1 quart (.95L). Capacity of the SQ 84T
is 2.5 quarts (2.3L) for the transfer and 1.5 quarts
(1.4L) for the outboard gearbox. Install breather
plug supplied in operator's manual package.
H. (Models SQ 420, 480) Slide driveline yoke
onto gearbox input shaft. Install retaining clip onto
input shaft. (Figure 4-4) Install 1/2 x 3", Gr. 2
shear pin through yoke and input shaft. apply
multi-purpose grease to fitting on yoke.
I. (Models SQ 600, 720) Depress quick discon-
nect pin and install driveline (with 8 x 50mm, Gr.
8.8 shear bolt) onto gearbox input shaft. Pull to be
sure driveline is locked securely in place.
J. (Models with Slip Clutches) Remove tapered
pin from splined end of slip clutch. Slide clutch onto
gearbox input shaft and secure using previously
removed tapered pin. Torque to 30 ft./lbs.
Perform slip clutch operational check as out-
lined in paragraph 4-6.
Tailwheel
Assy.
5/8" x 2-1/2" Bolt,
Bushing, Flat
Washer & Locknut
Support
Yoke
15
Pivot Arm Fork Assembly