Great Plains EWF13 13-Foot End Wheel Vintage Drills - Manual (Page 7)

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5 4/9/04 Great Plains Mfg., Inc.
Section 2 Assembly Instructions & Set-Up
13’ End Wheel Drill Single/Dual Hydraulic Marker 113-530M
Dual Hydraulics Installation Instruc-
tions
Refer toFigure 2-3 for Installation Instructions.
1. Attach hydraulic hose (#1) directly into base end
port of marker cylinder as shown
Important: When using sealant on pipe threads the fric-
tion between the threads is reduced. Therefore, be cer-
tain not to over tighten causing damage to the cylinder
port or fitting.
2. Route the two hydraulic cylinder hoses from each
cylinder through slot between pull bar and opener
mount channel and pull through to tongue.
3. Attach hose clamps (#12) approximately every 12" -
16" to front of disk opener channel using existing
flange headed bolts (#13) as shown.
Note: When attaching the clamp closest to the cylinder,
be sure to pull hydraulic hoses out and loop around so
when the cylinder rotates it will not kink the hose. This
can be done by unpinning the marker and rotating the
cylinder out and down, then retighten the clamp bolts to
45 foot pounds.
4. Attach sequence valve mount angle (#9) to the left
side of tongue at 12" from opener disk mount chan-
nel using 1/2" u-bolts, lock washers, and nuts as
shown.
5. Attach sequence valve (#7) to mount angle with two
3/8" x 1 3/4" long bolts, lock washers, and nuts.
6. Screw the two 3/4" o-ring - 9/16" JIC straight adapt-
ers (#8) into sequence valve outlet ports.
Note: Clean ports and coat o-ring with a thin film of oil
before assembling.
7. Attach the two marker hydraulic cylinder hoses
13261
Dual Hydraulics
Figure 2-3
(#15) to the sequence valve adapters. Attach the left
cylinder hose to the lower adapter and the right cyl-
inder hose to the upper adapter.
Note: The sequence valve will allow you to have both
markers up at the same time or one up and one down at
the same time. The valve will shift automatically as you
raise one marker and when you go to lower again the
other marker will go down.
8. Screw the 3/4" o-ring - 3/8" MNPT straight adapter
(#5) into the sequence valve inlet port. Now screw
the one-way restrictor valve (#3) with the flow arrow
on the valve pointing towards the sequence valve
and tighten to a position where the knob on the one-
way restrictor valve is accessible for adjustment. At
this time screw the knob on the one-way restrictor
valve in all the way and back it out 1/4 turn. This sets
the approximate desired lifting speed of the mark-
ers. After all the air is worked out of the marker hy-
draulic system, you can adjust the one-way
restrictor valve to the desired speed you wish to
have your marker rise.
!
CAUTION!
Raising the marker too fast can cause damage!
Note: The one-way restrictor valve only controls the
speed of the marker while lifting. The speed of the mark-
er being lowered is dependent upon several factors: the
temperature and viscosity of your hydraulic oil, the re-
striction of oil flow back to the tractor and the tightness
of the marker hinge. Your marker is equipped with an
extension spring to assist your marker when lowering.
9. Attach the hydraulic hose (#1) to the one-way re-
strictor valve. Now route the hose on top of the
tongue and through the spring type hose loop (#16).
Secure hydraulic hose to the tongue with two plastic
tie straps (#2) at approximately 24" apart. Then at-