Great Plains NP4000 40-foot Operator Manual - Manual (Page 66)

62 NP4000 Table of Contents Index Great Plains Manufacturing, Inc.
407-776M Table of Contents Index 2012-03-28
2011 Caster Adjustment
Refer to Figure 44 and Figure 45
90 Inch (In Row) Spacing
With the caster pins the through leading outside holes
of the lift assist frame, and through the outside tubes of
the forward caster pivot weldment, the caster arms are in
straight trail, and provide a 90 inch (2.29 m) wheel
spacing. The wheels are directly behind 30 inch rows.
120 Inch (Out of Row) Spacing
With the caster pins the through inside holes of the lift
assist frame, and through the inside tubes of the forward
caster pivot weldment, the caster arms are angled out,
and provide a 120 inch (3.05 m) wheel spacing. The
wheels are in between 30 inch rows.
Loss of Control and Machine Damage Risks:
Never operate with one or both pins removed, or with pins
installed but not in a caster weldment tube. Always install the
caster pin
from the top, in case cotter is lost. If the caster
arms are free to pivot at both ends, they can strike other
implement components, and directional control is substantially
reduced. This could contribute to a road accident, serious
injury or death.
Changing Spacing
This is a two person operation. If the applicator frame is
not exactly level, the caster arms may be difficult to
control with one hand.
1. Hitch the applicator to a suitable tractor (page 22).
2. Raise the applicator. Move to a level, and firm or
hard surface.
3. While raised, remove any lift lock channel or spacers
on the lift-assist cylinder.
4. Lower the applicator until the caster tire are just out
of ground contact. Set the lift circuit to Neutral and
shut off the tractor.
5. Remove the hairpin cotter at a caster pin . Have
one person control caster position. Remove the pin.
6. Reposition the caster as desired for the new spacing.
Insert the pin. Secure with cotter. Repeat for other
caster.
Note: Other configurations of the pins are not
recommended. In particular, it is not necessary to
set a wheel stance asymmetry for side-dress.
Figure 44
2011 Caster Wheel Spacings
32356
90 inches
(2.29 m)
120 inches
(3.05 m)
1
2
1
1
2
3
Figure 45
2011 Caster Wheel Spacing Pin
32357
3
4
2
1
4 3