Great Plains Case Drain User Manual

CDMR 08/27/10

Case Drain

&

Motor Return

Tractor Connection Guide

For

Great Plains YP Planters and Air Drills

This Guide Contains

Information For Connecting

Great Plains YP Planters and Air Drills

With Continuous Flow Fan Motors to

John Deere,

Case-IH, New Holland,

Massey, AGCO, Challenger, & Fendt

Tractors

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Great Plains Manufacturing reserves the right to make changes or to add improvements to this guide at any time without notice or obligation.

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CDMR 08/27/10

Current revisions of this Case Drain & Motor Return Tractor

Connection Guide are posted on the Great Plains Mfg public website under:

www.greatplainsmfg.com/support/servicedocuments.html and www.greatplainsmfg.com/manuals/plantermanuals.html and www.greatplainsmfg.com/manuals/mintillmanuals.html and www.greatplainsmfg.com/manuals/notillmanuals.html

Make sure you are using the most current revision of the guide. The date of the revision is shown at the bottom of each page.

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Great Plains Manufacturing reserves the right to make changes or to add improvements to this guide at any time without notice or obligation.

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Explanation

Early production YP Planters and Air Drills were not manufactured with fan motors that utuilized a case drain connection. If there are only two lines connected to the fan motor, then the case drain connection is not utilized. If there are three hoses connected to the fan motor, then case drain is utilized.

The purpose of this guide is to show the port locations for connecting case drain and motor return for Great Plains YP Planters and Air Drills that utilize continuous flow fan motors. The information obtained for this guide was taken directly from the tractor manufacturer’s information that is available on-line and through tractor dealers.

Since tractor equipment and options vary, the connections shown in this guide must be verified through the tractor manufacturer or dealer to prevent damage to the tractor and implement hydraulic systems.

Great Plains continuous flow fan motors require case drain and motor return lines to protect the motor during use. The case drain line must be connected first, then connect motor return line before connecting the pressure line. Failure to do so can cause damage to the motor seals. When disconnecting, always disconnect pressure, then motor return, and case drain last.

ALWAYS Connect	ALWAYS Disconnect
Case Drain First	Fan Pressure First
Motor Return Second	Motor Return Second
Fan Pressure Last	Case Drain Last

Case Drain

This connection is required to carry the motor case internal leakage directly to the tractor hydraulic reservoir (sump) with zero pressure. This oil serves to lubricate and cool motor components not directly exposed to the working oil. Great Plains supplies a 3/8” body size ISO 16028 zero pressure flat face case drain male coupler on a 1/4” hydraulic hose for the fan case drain line. It is normal to have seepage from this fitting when disconnected from the tractor to protect the motor seals from thermal expansion.

If the tractor is not equipped with a female flat face case drain coupler, then it must be sourced through a tractor dealer or hydraulic supplier.

	0.72”	3/4-16
		FORB

0.5” 0.777”

0.26”

Great Plains

P/N 841-099C

NOTE: Dimensions are for reference only. Not exact size.

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Great Plains Manufacturing reserves the right to make changes or to add improvements to this guide at any time without notice or obligation.
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Motor Return

This connection is required to carry the low pressure return oil from the motor to the hydraulic reservoir or charge circuit. Using a motor return port prevents accidental reverse operation and possible flow checking of the return SCV coupling. Great Plains supplies a 3/4” body size ISO 7241-1 Series A male and female coupler with each

YP planter and air drill. The male coupler is installed on the 1/2” or 5/8” motor return hydraulic hose from the factory. The mating female coupler must be connected to the tractor motor return port. The motor return hose and couplers are large to reduce back pressure to the motor.

		1.38”
		1.06”
	1.125”
1-1/16-12	Great Plains P/N	1-1/16-12
FORB		FORB
	811-069C

sold through Great Plains as pair only

NOTE: Dimensions are for reference only. Not exact size.

Terminology

Agricultural manufacturer’s use different terminology to describe case drain, motor return, power beyond pressure, and load sense. Below is a list of terms used to describe them:

Case Drain

	Zero Pressure Return		Low Volume Sump Line
	Motor Drain		Low Volume Case Drain
	Motor Seal Drain Return			Direct Outlet Pressure
	Low Pressure Drain Return			Sump
	Low Flow Low Pressure Drain			Tank
	Free Return
		Motor Return
	High Flow Low Pressure Return			Tank Return
High Volume Hydraulic Motor Return				Auxiliary Return
	High Volume Low Pressure Return			Sump
	Power Beyond Return

Below is a list of abbreviations used in this guide to describe types of fittings:

FORB	Female O-Ring Boss
FORFS	Female O-Ring Face Seal
MORB	Male O-Ring Boss
FJIC	Female JIC
MJIC	Male JIC
DIN	Deutsch (German) Industrial Norm
BSPP	British Standard Parallel Pipe

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Tractor Requirements

Tractors connected to YP Planters and Air Drills must meet the following requirements:

1.LS Closed or PC Closed hydraulic systems with a case drain connection and a motor return connection. Open Center hydraulic systems MUST NOT be used.

2.Verify the tractor Hp meets the requirements listed in the

Specification section of the planter or drill Operator’s Manual before connecting.

Tractors Equipped with Additional Accessories Connected to Case Drain and/or Motor Return

Some tractors may be equipped with additional accessories that connect to power beyond connections on the rear of the tractor (i.e. auto steering). If the case drain and motor return connections are already in use, then tee’s can be installed to add connections.

IMPORTANT!

DO NOT tee case drain into motor return. Case drain must have zero pressure return. Great Plains warranty will be voided if case drain has been connected and/or teed to a motor return line. Case drain should only be returned directly to the hydraulic reservoir. The case drain line must utilize an ISO 16028 coupler that will allow seepage due to thermal expansion when disconnected from the tractor.

If tractor case drain circuit is filtered, it is necessary to make sure to have a clean filter to prevent excessive case pressure. High case pressure will cause motor seal failure.

DO NOT connect the fan motor to power beyond pressure. Continuous flow through the power beyond will deprive the tractor rear differential and pto drive gears of hydraulic flow and cause damage to the tractor.

Some tractor manufacturer’s have chosen to use the same type coupler for power beyond load sense lines as for case drain lines. It is very important that these not be confused to prevent motor seal damage. DO NOT connect the case drain hose to a power beyond load sense coupler.

Some tractor manufacturer’s recommend running motor return through a tractor SCV return port. DO NOT run motor return through a tractor SCV return port. Minimum pressure on most tractor SCV return ports is approximately 250 to 300 psi. Only connect motor return to a motor return port. Motor return ports allow pressures less than 50 psi, which prolongs motor seal life.

Failure to use the correct motor return port can cause oil starvation to the transmission pump and hydraulic charge circuit on some tractors. This is caused when oil is returned into the differential housing rather than the transmission or hydraulic charge circuit.

Make sure all hydraulic couplers and hose ends are clean before connecting.

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Great Plains Manufacturing reserves the right to make changes or to add improvements to this guide at any time without notice or obligation.

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Connecting Fan Motor to Tractor

Always connect case drain first, motor return second, then pressure line to prevent motor damage. Always disconnect pressure line first, motor return second, then case drain last to prevent motor damage.

CONNECT LAST

Connect to tractor hydraulic remote capable of continuous flow.

1/2” or 5/8” i.d. hydraulic hose with standard 1/2” body size male coupler.

CONNECT SECOND

Connect to power beyond return port or tractor manufacturer suggested port location for high flow low pressure return.

1/2” or 5/8” i.d. hydraulic hose with large 3/4” body size male coupler, labled with “SUMP” decal.

Pressure

Return

Motor

Drain

Case

CONNECT FIRST

Must be connected to zero pressure return directly to the hydraulic reservoir.

1/4” i.d. hydraulic hose with 3/8” body size male flat face coupler.

Sourcing Adaptor Fittings

This guide lists part numbers for Eaton-Aeroquip and Parker hydraulic adaptor fittings since these two brands are widely used in North America. There are many other brands of hydraulic high pressure steel adaptor fittings available that can be used as long as the thread combinations match as shown in the illustrations. The part numbers listed can be used to cross reference with other brands if using a local hydraulic distributor or supplier.

Find your nearest EATON-Aeroquip hydraulic fittings and couplers distributor on-line at http://web.fluidpower.eaton.com/public/distributorlocator/

or

by calling toll free 888-258-0222

Find your nearest Parker hydraulic fittings and couplers distributor on-line at www:parker.com

or

by calling toll free 800-272-7537

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Great Plains Manufacturing reserves the right to make changes or to add improvements to this guide at any time without notice or obligation.

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Tractor Models

This guide lists suggestions for connecting case drain and motor return for John Deere, Case-IH,

New Holland, Massey, AGCO, Challenger, & Fendt tractors. See the tables for each tractor manufacturer to find the models included in each series.

8010 & 8010T		8020 & 8020T		8030 & 8030T		8000R & 8000RT
Series		Series		Series		Series
8110	8110T	8120	8120T	8130	-	8225R	-
8210	8210T	8220	8220T	8230	8230T	8245R	-
8310	8310T	8320	8320T	8330	8330T	8270R	-
8410	8410T	8420	8420T	8430	8430T	8295R	8295RT
		8520	8520T	8530	-	8320R	8320RT
						8345R	8345RT

9000 & 9000T		9020 & 9020T		9030 & 9030T
Series		Series		Series
9100	-	9120	-	9230	-
9200	-	9220	-	9330	-
9300	9300T	9320	9320T	9430	9430T
9400	9400T	9420	9420T	9530	9530T
		9520	9520T	9630	9630T
		9620	9620T

Information for Tractor Models included on this page is listed on pages 1 through 12.

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Tractor Models Continued

Puma	MX	Magnum		STX		Steiger
Series	Series	Series	Series			Series
165	MX210	180	STX275	-		335	-
180	MX215	190	STX280	-		380	-
195	MX230	210	STX325	-		385	385QT
210	MX245	215	STX330	-		430	-
225	MX255	225	STX375	STX375QT		435	435QT
	MX275	245	STX380	STX380QT		480	-
	MX285	275	STX425	STX425QT		485	485QT
	MX305	305	STX430	STX430QT		-	530QT
		335	STX440	STX440QT		535	535QT
			STX450	STX450QT
			STX480	STX480QT
			STX500	STX500QT
			STX530	STX530QT

T7000	TG		T8000	TJ	T9000
Series	Series		Series	Series	Series
T7030	TG210		T8010	TJ275	T9020
T7040	TG215		T8020	TJ280	T9030
T7050	TG230		T8030	TJ325	T9040
T7060	TG245		T8040	TJ330	T9050
T7070	TG255		T8050	TJ375	T9060
	TG275			TJ380
	TG285			TJ425
	TG305			TJ430
				TJ450
				TJ480
				TJ500
				TJ530

Information for Tractor Models included on this page is listed on pages 13 through 18.

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Great Plains Manufacturing reserves the right to make changes or to add improvements to this guide at any time without notice or obligation.

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Tractor Models Continued

DTA	DTB
Series	Series
DT180A	DT205B
DT200A	DT225B
DT220A	DT250B
DT240A	DT275B

8400	8600
Series	Series
8450	8650
8460	8660
8470	8670
8480	8680

MT600	MT700	MT800	MT900
Series	Series	Series	Series
MT635B	MT735	MT835	MT945B
MT645B	MT745	MT845	MT955B
MT655B	MT755	MT855	MT965B
MT665B	MT765	MT865	MT975B
MT645C	MT735B	MT835B	MT945C
MT655C	MT745B	MT845B	MT955C
MT665C	MT755B	MT855B	MT965C
MT675C	MT765B	MT865B	MT975C
MT685C	MT735C	MT875B
	MT745C	MT835C
	MT755C	MT845C
	MT765C	MT855C
		MT865C
		MT875C

900 Vario

Series (Com 3)

922

924

927

930

933

936

Information for Tractor Models included on this page is listed on pages 19 through 28.r3ba082710

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This page is left blank for duplexing.

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	8010 & 8010T Series
	8010 Series		Case Drain
		If the tractor is not equipped with a 3/8” body
		size ISO 16028 zero pressure female flat face
		case drain coupler, then order and install John
		Deere case drain kit part number RE222721.
			Motor Return
		If the tractor is not equipped with a 3/4” body
		size ISO 7241-1 Series A female motor return
		coupler, then order and install the following
		parts:
		Eaton Aeroquip P/N GG108-NP12-22
		Parker P/N 12M22F8OMXS
		M22 x 1.5	1-1/16-12
		MORB	MJIC
		Eaton Aeroquip P/N 2266-12-12
		Parker P/N 12F65OMXS
		1-1/16-12	1-1/16-12
Case	Motor	FJIC	MORB
	Return
Drain

}

connected to fan

motor return hose

8010T Series

from Great Plains

connect to tractor

supplied }with Great Plains

planters and air drills

(p/n 811-069C)

Motor

IMPORTANT: ALWAYS connect case drain first,

motor return second, then pressure line to prevent

Return

motor damage. ALWAYS disconnect pressure

line first, motor return second, then case drain last

Case

to prevent motor damage.

Drain

NOTE: Can use John Deere P/N RE248312 to

extend case drain coupler and motor return

coupler out from rear of tractor if needed.

John Deere P/N RE248312

M22 x 1.5

M22 x 1.5

MORB

5.7”

FORB

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			8020 & 8020T Series
		8020 Series		Case Drain
			If the tractor is not equipped with a 3/8” body
			size ISO 16028 zero pressure female flat face
			case drain coupler, then order and install John
			Deere case drain kit part number RE222721.
				Motor Return
			If the tractor is not equipped with a 3/4” body
			size ISO 7241-1 Series A female motor return
			coupler, then order and install the following
			parts:
			Eaton Aeroquip P/N GG108-NP12-22
			Parker P/N 12M22F8OMXS
			M22 x 1.5	1-1/16-12
			MORB	MJIC
			Eaton Aeroquip P/N 2266-12-12
	Motor	Case	Parker P/N 12F65OMXS
	Return		1-1/16-12	1-1/16-12
		Drain
			FJIC	MORB

}

connected to fan

8020T Series

motor return hose

from Great Plains

connect to tractor

supplied }with Great Plains

planters and air drills

(p/n 811-069C)

Motor

IMPORTANT: ALWAYS connect case drain first,

Return

motor return second, then pressure line to prevent

motor damage. ALWAYS disconnect pressure

Case

line first, motor return second, then case drain last

to prevent motor damage.

Drain

NOTE: Can use John Deere P/N RE248312 to

extend case drain coupler and motor return

coupler out from rear of tractor if needed.

John Deere P/N RE248312

M22 x 1.5

M22 x 1.5

MORB

5.7”

FORB

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