Great Plains NTA1300 Predelivery Manual - Manual (Page 19)

17 7/29/2004 NTA 1000 and NTA 1300 148-528Q
Great Plains Mfg., Inc.
Contact Wheel cont.
Refer to Figure 27
26. Assemble the opener spring rod, if not already assem-
bled, by slipping the 1/2-13 x 10 threaded bolt (2) into
the trunnion casting (3). Side bolt and trunnion into the
spring (4) and retain with spring can (5) and flange hex
nut (6). Tighten the spring down to the length of 10”.
27. Tighten the jam nut (7) against the flange nut to lock it
in place. Apply thread locker to the last few threads
and install the yoke (8). Install the casting plug (1).
28. Attach the spring rod (9) to the contact wheel spring
mount with a 1/2 x 4 pin clevis and a 1/8 x 1 1/4 cotter
pin (11). Attach the yoke end of the spring rod to the
contact arm using a 1/2 x 1 3/4 clevis pin and cotter pin
(10).
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Figure 27
Spring Rod Assembly
Assembly