Great Plains 2420 Operator Manual - Manual (Page 27)

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Section 3 Adjustments
5/15/06 2400, 2410 and 2420 Three-Point Drill 118-706M
Great Plains Mfg., Inc.
To lock up firming wheels on 20 series openers, remove
lock-up handle (1) from its keeper under drill walkboard.
Insert handle through hole in opener body as shown in
Figure 3-19. Hook handle around firming wheel (2). Pull
up on wheel until arm is secured by self-loading lock-up
spring (3).
To unlock firming wheels on 20 series openers, use lock-
up handle to lift firming wheel. With your free hand, reach
into opener body and unlatch spring from wheel arm.
Figure 3-19
Seed-Lok Lock Up, 20 Series Opener
NOTE: Openers in Figure 3-18 and Figure 3-19 are disas-
sembled for illustrative purposes only.
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