Great Plains Hydraulic Kit User Manual

Great Plains Mfg., Inc. Parts Installation Instructions 1

Two-Outlet Hydraulic Kit

2- and 3-Section Drills

Used with drill models:

• 2S-2600/F/HD/HDF

• 3S-3000/F/HD/HDF

• 3S-4000/F/HD/HDF

• 3S-5000/F/HD/HDF

General Information

These instructions explain how to install the Two-Outlet Hydraulic Kit. This combines the drill’s two Lift circuits (Opener and Transport) into a single circuit at the hitch. With this kit, a tractor having only two remotes can operate a drill which would otherwise require three circuits.

These instructions apply to:

Kit Kit Description

194-122A 3S TWO OUTLET TRACTOR HYD. KIT

This kit relies on some existing drill components.

This kit includes some parts not required, depending on drill vintage, and drill options already present or also being installed at this time.

If Markers are also to be installed, install the Two-Outlet Hydraulic Kit ﬁrst.

When you see this symbol, the subsequent instructions and warnings are serious - follow without exception. Your life and the lives of others depend on it!

Figure 1

Location of New Valve

15485

Notations and Conventions

“Left” and “Right” are facing in the direction of machine travel. An orientation rose in the line art illustrations shows the directions of Left, Right, Front, Back, Up, Down.

11 24

51 62

Each kit converts one drill.

single-digit or single-letter callouts identify components in the currently referenced Figure or Figures.

two-digit callouts in the range 11 through 24 reference new parts from the list on page 9. The descriptions match those on the cartons, bags or item tags, as well as in your updated Parts Manual.

two-digit callouts in the range 51 through 62 reference affected existing parts from the table on page 9. The descriptions match those in your Parts Manual.

2 2-Outlet Selector Front Parts Great Plains Mfg., Inc.

Before You Start

Review these instructions, and make sure you understand which existing system components are reused, and where they are located. The new components, and the existing components to be re-used or discarded, are located on the tongue of the drill, near the hitch.

Inventory the contents per “New Parts: Kit 194-122A” on page 9.

Tools Required

• basic hand tools

• a tractor with two hydraulic circuits and suitable hitch

• liquid thread sealant (for NPT ﬁttings only - do not use PTFE tape)

• buckets for recovery of hydraulic oil from open hoses

These instructions presume a drill that has seen some use, and may have pressure in the hydraulic system. The installation may be done with the drill folded or unfolded.

Negative Tongue Weight Hazard:

If unfolded, the drill must be hitched to a tractor during Opener Lift, to avoid negative tongue weight. Hitch loads can range between +4000 pounds (folded) and -1000 pounds (unfolded), depending on drill model and conﬁguration.

Pre-Assembly Preparation

Inspect the Mounting Site

Refer to Figure 2

1. Examine the mounting site on the tongue. See if a

valve is already on the valve mount , and if any hoses are under the clamps just aft of the mount.

2. Make sure the clamp hardware ( or ) is present.

It may be one of two different styles, depending on the drill vintage. If there are no hoses under the clamp, remove and save any: bolts, lock washers, ﬂat washers, clamp hold-downs, clamps and hose guards.

If the drill does not have markers installed, a valve mount welded on the tongue is available. The TwoOutlet selector valve mounts there, and includes a bracket to provide a second mount point for another valve.

If the drill already has markers installed, the valve mount welded on the tongue already will already have a valve mounted on it. You can mount the Two-Outlet selector valve above it, or exchange their positions, using the bracket in this kit.

A B

Figure 2

Valve Mount & Clamp

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194-033M Front Parts 2014-04-15

Great Plains Mfg., Inc. Front Parts Installation Instructions 3

Hydraulic Pressure Relief

High Pressure Fluid Hazard:

Only trained personnel should work on system hydraulics!

Escaping ﬂuid under pressure can have sufﬁcient pressure to penetrate the skin, causing serious injury. Avoid the hazard by relieving pressure before disconnecting hydraulic lines. Use a piece of paper or cardboard, NOT BODY PARTS, to check for leaks. Wear protective gloves and safety glasses or goggles when working with hydraulic systems. If an accident occurs, see a doctor immediately. Any ﬂuid injected into the skin must be surgically removed within a few hours or gangrene will result.

Installation of this kit may require, at a later step, breaking sealed hydraulic connections at quick-disconnect couplers. It is crucial to safety that these lines be depressurized.

3. If the available tractor has hydraulic circuits with “ﬂoat” capability, connect the Transport and Opener Lift circuits, and relieve any residual system pressure by ﬂoating the circuits.

If no suitable tractor is available, “crack” (carefully loosen) the connections for both Lift circuits the at the bleeding points speciﬁed in the drill Operator manual. Leave them cracked for later bleeding.

Bleed only at:

JIC (Joint Industry Conference, 37° ﬂare) or NPT (National Pipe Thread, tapered) ﬁttings.

Never bleed at:

ORB (O-Ring Boss) or QD (Quick Disconnect) ﬁttings.

Assembly

Assemble Selector Valve

Note: Do not use thread sealant on ORB ﬁttings.

Refer to Figure 3

4. Select: one new

810-274C DOUBLE SELECTOR VALVE 3/4FORB

The face openings of the valve are to machine left after installation.

5. Select: two new

811-063C EL 3/4MJIC 3/4MORB

Install the ORB ends of the elbows in the face (center) of the valve body (“1” and “2” are stamped into the valve body at those ports). Before tightening the jam nuts, orient the JIC ends so that they face forward when the valve is mounted.

6. Select: four new

811-021C AD 1/2FNPTS 3/4MORB

Install the adaptors in the end ports of the valve

body (ports stamped “1A”, “1B”, “2A” and “2B”).

Valve and Fittings

Figure 3

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2014-04-15 Front Parts 194-033M

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