Great Plains YP4425A Material Rate - Manual (Page 56)

52 YP3025A, YP4025A and YP4425A Table of Contents Great Plains Manufacturing, Inc.
401-627B Table of Contents 2014-05-13
Coarse rate is set by a single “driving” sprocket on the
ground drive assembly. Fine rate is set on a dial (setting
hub)
at the pump, using a tool supplied with the pump.
Rate settings may be established in any of three ways:
• the table on the next page,
• the slide chart provided with the pump, or;
• a calculator on the CDS-John Blue internet web site
( www.cds-johnblue.com )
1. Check plumbing setup. See “Setting Relief Valve”
and “Strainer” in the Operator Manual.
2. Determine Driving sprocket (15T or 47T) required
from table, slide chart or web calculator. If this
sprocket is already installed on driven shaft, skip to
step 7. Otherwise, to change sprocket, continue with
step 3.
3. Remove knob and guard . Loosen idler , and
remove chain from lower jackshaft .
4. Select the new sprocket from the storage shaft .
Remove the pins, and exchange sprockets. Store the
previous sprocket on the storage shaft.
5. Remount the chain . Re-engage idler , tightening
so that the longest span of the chain has
1 ⁄
4
inch (6 mm) of slack.
6. Remount guard and secure with knob .
Refer to Figure 33
7.
Using the box-wrench end of the CDS-John Blue
115681-01 tool, loosen the setting pointer nut
.
8. Use the other end of the tool to rotate the dial to
the setting determined by table, slide chart or web.
9. Re-tighten pointer nut.
Figure 32
John Blue Pump
28416
3
2
1
4
5
6
7
8
2
3
4 5 6
7 2
8
Figure 33
Pump Dial
26155
3
9
7 6
5 4
9
3