Great Plains YP2425F-2470 Operator Manual - Manual (Page 146)

142 YP2425 & YP2425F Table of Contents Index Great Plains Manufacturing, Inc.
401-406M Table of Contents Index 2014-07-14
402-520A Low Speed Kit Installation
See “Low Speed Kit” on page 110 for the purpose of
this kit.
1. Shut off any hydraulic source that powers the
hydraulic seed meter drives (dedicated remotes or
PTO).
Refer to Figure 140
2.
At the hydraulic drive motor, loosen the idler nut .
Slide the idler out of engagement with the existing
chain
. Remove and save the existing chain:
136-247D CHAIN RL #60 41 PITCHES
3. Loosen the set screws securing the existing 16T
sprocket
. Remove and save the sprocket:
808-388C SPKT 60B16 X 1 BORE W/KWAY, SS
Leave the woodruff key in place.
4. Select one new 10T sprocket:
808-479C SPKT 60B10 X 1 BORE W/KWAY 2SS
Install it on the motor shaft. Secure it with the
woodruff key and two set screws provided.
5. Select one new:
136-285D CHAIN RL #60 38 PITCHES
Consult page 97 and the directional arrows
shown on the page for proper chain clip orientation.
Install the new chain on the new sprocket and
existing driven sprocket.
Engage the idler for
1 ⁄
4
inch (2.1 cm/m) slack.
Secure the idler nut .
Field Results Risk:
Do not change the sprocket ratios in the DICKEY-john
®
IntelliAg
®
hydraulic drive setup.
Figure 140
Low Speed Kit Sprocket
36355
16
10
37
1
40
38
41
2
1
37
37
38
38
1
41
40
1