Great Plains V-300F Operator Manual - Manual (Page 28)

V-300, V-300F
148-057M 6/29/2006
26
Coulter Mounting Height
You can change the depth of individual coulters by
adjusting coulter-mounting height. If you adjust
coulter height, be sure to rebolt coulters vertically
straight and correctly spaced. To raise or lower in-
dividual coulters:
Refer to Figure 18
1. Loosen mounting clamps and adjust coulter
to desired height. Do not lower coulter spring
bar below top u-bolts on coulter clamp.
2. To re-tighten clamps. Snug hex-head clamp
bolts (1) just until u-bolts are tight on each
side of spring bar.
3. Tighten nuts (2) on u-bolts.
4. Finish tightening hex-head clamp bolts.
NOTE: Even when coulter is held securely, there
may be a gap between clamp halves.
Coulter Down Pressure
Coulter Springs
Coulter-spring length is preset at the factory to
254 mm (10 inches), giving coulters an initial op-
erating force of 181 kg (400 pounds). This setting
is adequate for many difficult no-till conditions. For
lighter no-till conditions where rocks or other ob-
structions are a problem, you can reduce coulter
down pressure to give coulters better impact pro-
tection. Refer to the following chart for adjusting
coulter down pressure.
NOTE: Do not reset coulter-spring length shorter
than
248 mm (9 3/4 inches). Shortening springs more
than 248 mm (9 3/4 inches) may contribute to pre-
mature failure of parts and warranty will be void-
ed.
Level Link
The level link maintains constant opener depth
when minor adjustments are made to the coulter
depth with the tongue cylinder.
Reset the top link to 261.62 cm (103 inches) cen-
ter to center. Minor adjustments can be made to
the length, however; always use this length as a
baseline.
Spring Length
Coulter Down
Pressure
267 mm (10 1/2 in) 79 kg (175 lbs)
260 mm (10 1/4 in) 136 kg (300 lbs)
254 mm (10 in) 181 kg (400 lbs)
248 mm (9 3/4 in) 238 kg (525 lbs)
10300
Figure 18
Individual Coulter Mounting