Land Pride RC4710, Operator'S Manual

Page: 33 / 72

Section 2: Adjustments
RC(L)4710 & RCM(L)4710 Rotary Cutters 334-863M 7/31/20
29
Table of Contents
Park Jack Angle Alignment
Refer to Figure 2-1:
The jack mount angle should be adjusted to position the
park jack vertical while supporting the cutter hitch. This
angle will vary depending on the number of stroke control
flip spacers closed on the lift cylinder rod.
1. With cutter hitched to a tractor, lower cutter to storage
height.
2. Shut tractor down properly before dismounting
according to
“Tractor Shutdown Procedure”
on
page 15.
3. Install park jack (#7). See
“Attach Park Jack”
on
page 15. Check jack angle. If jack is not vertical,
proceed with step 4 below.
4. Remove hex nut (#3), lock washer (#5) and carriage
bolt (#2).
5. Loosen 1" hex nut (#4). Do not remove.
6. Rotate jack mount (#1) to align jack as near vertical
as possible.
7. Replace 1/2"-13 x 1 1/2" GR5 carriage bolt (#2) and
secure with lock washer (#5) and hex nut (#3).
Tighten hex nut to the correct torque.
8. Tighten 1" hex nut (#4) to 645 ft-lbs (874.4
N· m
).
9. If moving cutter, skip to step 10. If unhooking cutter,
see “Unhook Rotary Cutter” on page 27 for detailed
instructions.
10. If cutter is to be moved, relocate park jack (#7) from
hitch frame to left side storage base. Make sure base
of park jack is level with or lower than the head. See
cover picture for correct positioning.
Park Jack Angle Alignment
Figure 2-1
NOTE:
Refer to decal (#6) and instructions below
for jack alignment and torque value instructions.
NOTE:
If cutter is not hitched to a tractor, place
solid, non-concrete support blocks under the front
skid shoes to support cutter while aligning park jack
vertically.
70471
Lift Cylinder Adjustment
Refer to Figure 2-3 on page 30:
To get best range of motion, put lift cylinder (#2) in bottom
hole (as shown) when cutter is supplied with 21" to 26"
tires. Put the lift cylinder (#2) in the top hole (A) when the
cutter is supplied with 29" tires. When supplied with larger
tires, overall ground clearance can be increased by
putting the lift cylinder (#2) in the bottom hole (as shown),
but lower cutting height ranges will be sacrificed.
WARNING
!
To prevent serious injury or death:
Stay clear from underneath the cutter and directly behind
transport tires. The cutter could fall suddenly causing the
decks to lower and tires to roll back.
1. Park tractor and cutter on a level surface.
2. Fully extend deck lift cylinder (#2) and fold cylinder to
lower the wing.
3. Without relieving hydraulic pressure, shut tractor
down properly before dismounting, according to
“Tractor Shutdown Procedure”
on page 15. Place
solid, non concrete support blocks or jack stands
under the four corners of the center deck.
4. Move stroke control flip spacers to open position.
5. Return to tractor seat and start the tractor. Lower
center deck onto solid, non concrete support blocks.
Shut tractor down properly before dismounting.
6. Remove hairpin cotter and hitch pin (#6) on both
ends of cylinder.
7. If moving from hole (A) to bottom hole, measure and
note the distance between the bottom hole and
cylinder hole on axle. Over a bucket or oil catch,
loosen hose fitting to drain oil and retract cylinder to
length of noted measurement. Tighten hose fitting,
clean cylinder and dispose of oil properly.
8. Reposition hydraulic cylinder to the desired mounting
hole, reinsert hitch pin (#6) and secure with hairpin
cotter.
9. With jack or overhead lift, lift the rear axle to align with
rod end of cylinder (#2) and reinsert hitch pin and
secure with hair pin. Remove jack or lift straps.
10. Return to tractor and fully extend center deck lift
cylinder to raise the deck up.
11. Without relieving hydraulics, shut tractor down
properly before dismounting. Close stroke control flip
spacers and remove support blocks from under the
four corners of the center deck.
Section 2: Adjustments