Great Plains PFH-20 Operator Manual User Manual
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9
Section 1 Assembly and Setup
6/21/2004
PH-15, PH-20, PFH-15 and PFH-20 Coulter Command System 148-384M
Great Plains Mfg., Inc.
5.
Remove elbow fitting (8) at base end of tongue cylin-
der and screw the 1/16 inch orifice plate (9) into base
end port. Screw orifice plate in far enough so it does
not interfere with elbow fitting.
6.
Replace fitting.
IMPORTANT: Failure to install the orifice plate will not al-
low Coulter Command to operate correctly.
Figure 1-6
Tongue Cylinder
18432
Tongue Cylinder
Refer to Figure 1-6.
1.
Remove stroke pointer gauge (1) at the rod end of the
tongue cylinder. Retorque cylinder tie rod bolts to 95
ft-lbs.
2.
Remove stroke pointer (2) at cylinder rod clevis.
3.
Turn tongue cylinder with rod end pointing forward and
down and with ports turned up. Use clevis pin (3), flat
washer (4) and cotter pin (5) to replace stroke pointer
pin at what is now the base end of the cylinder.
4.
Connect rod end to tongue with clevis pin (6) and hair
pin cotter (7).