Great Plains VARIABLE RATE KIT Operator Manual - Manual (Page 9)

Great Plains Mfg., Inc. Front Parts Installation Instructions 9
6/23/2010 Front Parts 166-263M
Install NTA607/2007HD Arm(s)
For ADC/NTA907/3007HD, install arms per step 29
through step 35 on page 8, then continue at step 45 on
page 10.
Refer to Figure 11
(which depicts an ADC installation - the NTA installations
have a different appearance but use the same instructions)
37. Select one new:
168-370H ELECTRONIC CONTROL ARM WLDMNT
and two new:
890-202C GAUGE WHEEL SFT PIVOT BUSHING
38. Press one bushing into the inside end of the
control arm tube (the side with the longer arm with
indicator point).
Using the existing
1 ⁄
4
in holes in the tube as a guide,
drill a
1 ⁄
4
in hole through both sides of the bushing.
39. Press the other bushing into the outside end of
the control arm tube.
40. With indicator tip to rear, and toward gearbox, place
arm weldment assembly on control shaft .
41. Select one saved:
805-065C PIN WIRE RETAINING 1/4 X 1 3/4
Align the arm tube and inside bushing with
the hole in the gearbox control shaft. The arm
indicator tip should be pointing near “0” on the
scale.
Secure the arm with the wire retaining pin .
42. Select one each new:
805-021C PIN COTTER 1/4 X 2 PLT
Insert the cotter pin through the end holes of the
gearbox control shaft. Spread tips to secure cotter.
43. If two meters are being upgraded, repeat step 37
through step 42 for the other meter.
44. Continue at step 50 on page 10.
Figure 11
Install Control Arm
31358
16
9
40
40
8
51
33
16
40
40 8
40
16 9
51
8 40
9
51
33
33