Opener down force – Great Plains CTA4000 HD Operator Manual User Manual
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CTA4000HD
Great Plains Manufacturing, Inc.
160-037M
2012-11-28
Opener Down Force
CTA4000HD Row Spacing
Valve
6in (15.2 cm)
7.5in (18.9 cm)
10in (24.8 cm)
200 psi
130 lbs (59 kg)
135 lbs (61 kg)
144 lbs (65 kg)
300 psi
136 lbs (62 kg)
144 lbs (65 kg)
155 lbs (70 kg)
400 psi
143 lbs (65 kg)
152 lbs (69 kg)
167 lbs (76 kg)
500 psi
148 lbs (67 kg)
160 lbs (73 kg)
179 lbs (81 kg)
600 psi
154 lbs (70 kg)
167 lbs (76 kg)
189 lbs (86 kg)
700 psi
157 lbs (71 kg)
172 lbs (78 kg)
196 lbs (89 kg)
800 psi
161 lbs (73 kg)
178 lbs (81 kg)
205 lbs (93 kg)
900 psi
166 lbs (75 kg)
184 lbs (83 kg)
213 lbs (97 kg)
1000 psi
171 lbs (78 kg)
190 lbs (86 kg)
223 lbs (101 kg)
1100 psi
172 lbs (78 kg)
194 lbs (88 kg)
228 lbs (103 kg)
1200 psi
180 lbs (82 kg)
203 lbs (92 kg)
240 lbs (109 kg)
1300 psi
184 lbs (83 kg)
208 lbs (94 kg)
248 lbs (112 kg)
1400 psi
189 lbs
(86 kg)
215 lbs
(98 kg)
258 lbs
(117 kg)
1500 psi
193 lbs
(88 kg)
220 lbs
(100 kg)
264 lbs
(120 kg)
Down-force settings above 1600 PSI require an adjustment to the opener-subframe arms. See next page.
1600 psi
198 lbs
(90 kg)
227 lbs
(103 kg)
274 lbs
(124 kg)
1700 psi
202 lbs
(92 kg)
232 lbs
(105 kg)
281 lbs
(127 kg)
1800 psi
209 lbs
(95 kg)
240 lbs
(109 kg)
291 lbs
(132 kg)
1900 psi
213 lbs
(97 kg)
247 lbs
(112 kg)
300 lbs
(136 kg)
2000 psi
217 lbs
(98 kg)
253 lbs
(115 kg)
309 lbs
(140 kg)
2100 psi
222 lbs
(101 kg)
260 lbs
(118 kg)
318 lbs
(144 kg)
2200 psi
227 lbs
(103 kg)
266 lbs
(121 kg)
327 lbs
(148 kg)
2300 psi
232 lbs
(105 kg)
273 lbs
(124 kg)
336 lbs
(152 kg)
The standard CTA4000HD can generate every down-force setting in this table;
however, if weight kits have been removed, some settings cannot be reached.
One weight kit required (no more than 3 of the standard 4 kits removed)
Two weight kits required (no more than 2 of the standard 4 kits removed)
Three weight kits required (no more than 1 of the standard 4 kits removed)
1
1
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
2
2
2
2
3
3
3
3
3
3
3
3
1
2
3