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88
Great Plains Manufacturing, Inc.
NTA607/2007HD
166-283M
04/09/2019
Weight Transfer Preparation
The weight transfer bypass valve must be adjusted before
adjusting the weight transfer circuit.
See
1. Hitch drill to suitable tractor (page 22). Hydraulic
power must be available for this adjustment.
2. Unfold implement (page 31). The wing transfer
adjustment cannot be made with the wings folded.
Set circuit to Neutral.
3. Lower drill (page 36) in representative level field
conditions. Pull forward to put openers in ground.
Wing Weight Transfer Adjustment
1. Release lock ring
on wing-transfer valve
.
Adjust knob
while observing gauge
.
2. Increase weight transfer to wings by turning knob
clockwise. Reduce weight transfer to wings by
turning knob counter-clockwise.
3. Set pressure to at least 250 psi.
4. Secure setting with lock ring.
Cart Weight Transfer Adjustment
1. Release lock ring
on cart-transfer valve
.
Adjust knob
while observing gauge
2. Increase weight transfer from cart by turning knob
clockwise. Reduce weight transfer from cart by
turning knob counter-clockwise.
3. Set pressure to at least 100 psi.
4. Secure setting with lock ring.
Testing Weight Transfer Adjustments
1. Pull forward in ground. Assess opener penetration,
and coulter (option) penetration. Compare wings
a
to
center section.
2. During field operations, monitor coulter and opener
depth of wings and center section. Adjust weight
transfer as required for consistent depth across drill.
a. Wing operating height is also affected by a leveling eye bolt adjustment (page 131).
Null4:
Note: To avoid planting problems, do not exceed
1500 psi for wing-transfer, and 1000 psi for cart-
transfer. A relief valve prevents operating the
wing-transfer at over 1500 psi.
Material Rate Risk:
Do not set cart weight transfer higher than necessary.
Values close to 1000 psi can lift the rear of an empty cart off
the ground.
.eps
99.7%
Figure 73
Weight Transfer Valves
38333
2
6
1
3
5
7
4
8
3
6
1
5
7
4
8
2
1
2
3
4
5
6
7
8
Содержание NTA2007HD
Страница 32: ...28 Great Plains Manufacturing Inc Contents Index NTA607 2007HD 166 283M Contents Index 04 09 2019 ...
Страница 177: ...Contents Index 173 04 09 2019 Contents Index 166 283M BLANK ...
Страница 178: ...Great Plains Manufacturing Inc Corporate Office P O Box 5060 Salina Kansas 67402 5060 USA EOD ...