Farm Star HK-91 - Manual (Page 7)

5
A S S E M B LY (continued)
HK-90 Assembly: Look at the exploded HK-90 view in
this manual and become familiar with the names of the
parts and the relationship of the parts to each other.
Directly above the PTO shaft on top of the axle hous-
ing there is a small bracket with electrical connections
attached. There is a 3 bolt hole pattern drilled and
threaded into this part of the axle housing. Remove the
bolts from this bracket.
Slide the left side of the rocker shaft assembly beneath
this bracket and start two (2) 1 / 2 ” x 1 1 / 2 ” bolts through both
the electrical bracket and the forward plate on the left
side of the rocker shaft assembly and into the threaded
holes in the tractor. Next, start the front bolt in the three
(3) hole pattern. DO NOT TIGHTEN THESE BOLTS AT
THIS TIME.
NOTE: It will be necessary to lift the rocker shaft assem-
bly over the rear tractor light and place it in front of the
light housing.
NOTE: The rear light will be in a more convenient loca-
tion and away from the top link bracket if it is taken off the
tractor battery box bracket, turned upside down and re-
bolted to the battery box bracket.
On the right-hand side of the rocker shaft assembly
there is a plate extending down with two (2) holes. Bolt
the right side rocker assembly brace to this plate with two
(2)
5 / 8 ” x 1 1 / 2 ” bolts. Leave all bolts loose.
On the front and rear of the rear wheel housings there
are threaded bolt patterns (3-bolt). The lower end of the
right rocker assembly brace bolts to the lower rear hole
of the rear bolt pattern on the right wheel housing. Use
the
5 / 8 ” x 2” bolt, flat and lock washer provided.
Now go back and tighten the last six (6) bolts you have
installed.
The lift brackets (Ref. #2 & 3) mount to the bolt patterns
on the front of the wheel housing, using all three holes.
Start all of the bolts first, then tighten them securely.
Go to the instruction section that is common for both
the HK-90 and HK-91 hitch kits.
HK-91 Assembly: Look at the exploded HK-91 view in
this manual and become familiar with the part names and
their relationship to each other.
Remove the seat and seat support frame from your
Cub Lo-Boy tractor. This requires the removal of the
three (3)
1 / 2 ” bolts on the left side that go into the top of
the axle housing and the two (2) 5 / 8 ” bolts on the right side
that also go into the axle housing.
Install the right side rocker assembly support angle. It
uses the same two (2) 5 / 8 ” bolts that held the right side of
the seat support. The support angle goes between the
seat support and the axle housing. Leave the bolts loose
at this time.
Place the rocker shaft assembly into position. The left
side has a steel plate protruding forward that has the
same three (3) hole bolt pattern as the seat support
bracket. The steel plate on the rocker shaft assembly
goes between the seat support and the axle housing.
Start the three (3)
1 / 2 ” bolts into the holes, but leave loose
for now.
Insert the two (2) 5 / 8 ” x 1 1 / 2 ” bolts that connect the right
end of the rocker shaft assembly to the right side support
angle. When these bolts are in place, go back and tight-
en the seven (7) bolts that hold the rocker shaft assem-
bly in place.
NOTE: The rear light will be in a more convenient
location and away from the top link bracket if it is taken
off the tractor battery box bracket, turned upside down,
and re-bolted to the battery box bracket.
On the lower inside front of the rear wheel housings
there are threaded 3 bolt hole patterns. The left and right
lift arm pull brackets mount to the wheel housing with the
5 / 8 ” x 1 1 / 4 ” bolts and washers provided. Tighten these bolts
securely.
Assembly Instructions for both the HK-9O and HK-
91 hitch adapter kits: Attach the lift control arm (Ref.
#4) to the lift mechanism on your tractor, capturing it with
the
3 / 4 ” flat washer and cotter pin (Ref. #24). Attach the
other end of the lift control arm to the upright pivot arm
on the left end of the rocker shaft assembly.
NOTE: This is a pivot point! A flat washer should go
between the two parts and under the bolt head. This bolt
should not be tightened completely. A lock nut is provid-
ed for this reason. The nut should be to the inside.
NOTE: The slot provides a floating action for the hitch.
Make sure the bolt can slide back and forth in the control
arm slot.
Attach the lift arm leveling assemblies (Ref. #6) to the
rocker shaft lift bars with the pin and linchpin provided.
Slide the lift arms (Ref. #5) over the pins on the pull
brackets, and swing them up between the lower devises
on the leveling assemblies and bolt them in place. Use
rear lift arm hole only.
Place one end of the top link between the top link ears
(center of the rocker shaft) and insert the forged pin and
secure with a
7 / 16 ” Iinchpin.
Stabilizer Arm: To limit side movement of the imple-
ment, install the stabilizer bar included in the kit. Loosen
the two (2)
7 / 16 ” carriage bolts and place one end of the
bar over the left-hand 7 / 8 ” pin on the pull bracket. (Same
pin that the left-hand lift arm is on.)
I N S T R U C T I O N S (continued) I N S T R U C T I O N S (continued)
S A F E T Y T R A I N I N G
• Know your controls and how to stop tractor, engine,
and PTO quickly in an emergency. READ THIS
MANUAL AND THE ONE PROVIDED WITH YOUR
TRACTOR.
• To avoid accident or injury, do not allow anyone to
operate this equipment without proper instructions.
Any person who operates this equipment must be
instructed in and be capable of the safe operation of
the tractor, implement and all controls.
• Do not allow children to operate this machine.
• Always wear relatively tight and belted clothing to
avoid entanglement in moving parts. Wear sturdy,
rough-soled work shoes and protective equipment for
eyes, hands, and hearing. Never operate tractor in
bare feet, sandals, or sneakers.
• Operate only in daylight or good artificial light.
• Ensure implement is properly mounted, adjusted and
in good operating condition.
• Ensure that all safety shielding and safety signs are
properly installed and in good condition.
6
A S S E M B LY (continued)
Place the other end up inside the right-hand lower lev-
eling assembly clevis (see Figure A) and re-install the
clevis bolt connecting it to the lift arm.
NOTE: Hole in the end of the stabilizer bar is over-size
for lift arm movement.
After connecting both lift arms and the top link to the
implement, raise the implement just off the ground and
center the implement in relation to the tractor. Lower the
implement back on the ground and tighten the two (2)
7 / 16 ”
carriage bolts on the stabilizer bar.
W A R N I N G !
MAKE SURE THAT ALL OPERATING AND SERVICE
PERSONNEL KNOW THAT IN THE EVENT
HYDRAULIC FLUID PENETRATES THE SKIN, IT
MUST BE SURGICALLY REMOVED WITHIN A FEW
HOURS BY A DOCTOR FAMILIAR WITH THIS FORM
OF INJURY, OR GANGRENE MAY RESULT.
When using a 3 pt. hitch rear blade in a reverse
position (bulldozing), use extra care. DO NOT RAM
BLADE into dirt or packed snow piles! Tractor lift
arms and the blade are not built to take high impact
loads in this position. RAMMING backwards can also
dislodge operator from seat and/or tractor controls,
resulting in possible serious injury or death.
Always ease the tractor into the load. It may be
necessary to reposition and take less “bite” on the
material to move it safely.
Watch for and avoid hidden obstructions, i.e.,
buried pipes, rocks, concrete piers, uneven con-
crete slabs, stumps, etc., when operating. This is
especially of concern when removing snow.
C A U T I O N !
A heavy load can cause instability in driving a trac-
tor. Make sure the front of the tractor is properly
counter-balanced with weights. Always drive slowly
– especially around turns. An unstable tractor could
steer badly and possibly tip over, causing injury or
death.
W A R N I N G !
Figure 1. Tractor Stability
W A R N I N G !
When using a 3 pt. hitch, a minimum 20% of tractor
and equipment weight must be on tractor front
wheels. Without this weight, tractor could tip up,
causing possible loss of control and possible per-
sonal injury or death. The weight may be attained
with a front end loader, front wheel weights, ballast
in tires or front tractor weights. When attaining a
minimum 20% of tractor and equipment weight on
the front wheels, you must not exceed the ROPS
weight certification. Weigh the tractor and equip-
ment. DO NOT GUESS OR ESTIMATE!