Landoll 7431 VT Plus - Manual (Page 27)

ASSEMBLY INSTRUCTIONS
3-3
7431 VT Plus Frame and Hitch
Assembly
IMPORTANT
Read all safety precautions at the front of the section
before attempting any of the following procedures.
1. Place the center frame assembly on stands
approximately 36” high. The assembly area should
be a large level area of sufficient size to
accommodate the disc when fully assembled.

WARNING
2. Attach the hitch weldment to the front of the center
frame using 1-1/8-7 x 7-1/2 hex head cap screws,
machine bushings, hitch mounting plates, and hex
lock nuts (See Figure 3-1.) Machine bushings are
provided to remove the slack on each side of the ball
joints and center the hitch. Use bushings as required.
NOTE
The hitch may be assembled in the upper or lower
position depending on matching tractor drawbar height.
See “Hitch Adjustment” on page 4-12 for proper
adjustment.
3. Move the tongue jack to the forward mounting tube
and rotate to parking position to support the front of
the hitch.
4. Insert a 3/4-10 x 7 hex head cap screw into the hose
holder tube on the right side of the hitch from the
bottom side so the threads point upward. Hold in
place with a 3/4 prevailing torque flange nut with the
flange pointing upward as well. Do not tighten this
cap screw, so the hose holder bracket may pivot
freely in this joint.
5. Slide the hose holder bracket over the screw and
secure with another 3/4 prevailing torque flange nut.
6. Install a 3/8-16 x 3-1/2 all-thread screw in the front of
the hose holder bracket and secure with a 3/8-16 hex
nut. Use 3/8-16 x 4-1/2 all-thread screw if installing
hydraulic reels.
7. Slide the hose holder clamp over the 3/8” screw and
loosely start the wing nut on top of the clamp.
Hydraulic hoses will be routed through the clamp
after assembly.
8. Install hose holder clamp at rear of hitch with 1/2-13 x
11 hex head cap screws and hex lock nuts.
NOTE
The clamp has two sides, so that extend hoses can be
located on one side and retract hoses can be located on
the other side for reference.
Do not attempt to lift heavy parts (such as the
frame, disc gangs, rock shaft, and pull hitch)
manually. Use a hoist or a fork lift to move these
parts into position.