Install lift cylinder – Great Plains YP625PD Predelivery Manual User Manual
Page 41

Great Plains Manufacturing, Inc.
Planter Assembly
37
07/05/2011
401-754Q
Install Lift Cylinder
Refer to Figure 74 (which depicts the cylinder already
installed - it is easier to remove the rod end plug prior to
cylinder installation)
152. Select one:
810-316C CYL 3.5X12X1.25 ROD (TIE ROD)
153. Remove the SAE 9/16 ORB plug
at the rod end
of the cylinder. This plug is not re-used.
Note: There are two ports at the base end of the cylinder.
154. At the base end port
that is on the opposite side
of the cylinder from the rod end port, remove the
SAE 9/16 ORB plug
155. Select one set:
805-159C PIN CLEVIS 1 X 3 1/8 GR5 PLT
804-029C WASHER FLAT 1 SAE
805-104C PIN COTTER 3/16 X 1 1/2 PLT
156. With the cylinder’s open base port
facing to the
rear, align the base end clevis of the cylinder
with the eyebolt
. Insert the clevis pin
. Add
the washer
. Secure with cotter
.
Note: It may require some effort to extend the cylinder
rod, but it is possible with the plugs removed. It is
not possible to move the rod with plugs installed.
157. Select one set:
805-159C PIN CLEVIS 1 X 3 1/8 GR5 PLT
804-029C WASHER FLAT 1 SAE
805-104C PIN COTTER 3/16 X 1 1/2 PLT
158. Extend the cylinder rod clevis to align with the lug
on the lower parallel arms. Insert the clevis pin
.
Add the washer
. Secure with cotter
.
159. Select two new:
811-216C EL 3/4MJIC 9/16MORB
Remove any protective caps from the MORB ends
of these elbows.
160. Back the jam nuts fully away from the MORB ends.
Thread the MORB ends of these elbows
into
the open cylinder ports (
,
). Screw them in until
the MORB just touches bottom, or the jam nut
washer stops travel. Do not tighten yet.
Refer to Figure 76
161. Orient the MJIC ends of the base end elbow
point down and left.
Orient the MJIC end of the rod end elbow
to point
down and slightly left.
Tighten the MORB jam nuts to
specification (page 81).
Null4:
Null4:
Figure 74
Removing Cylinder Port Plug
Q0057
112
5
331
316
327
351
4
Null4:
Figure 75
Lift Cylinder
31797
117
4
331
316
327
331
316
327
351
117
331
316
327
331
316
327
331
316
327
353
Null4:
Figure 76
Elbow Orientations
Q0058
4
353
353
353
4
5
4