220 mobile piston pump - crossco · 2 eaton. 220 mobile piston pump technical manual e-puov-tp001-e...

220 Mobile Piston Pump AEC028

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Available from Cross Company | Fluid Power Group 336.856.6985

2 EATON 220 Mobile Piston Pump Technical Manual E-PUOV-TP001-E November 2012

Introduction

Eaton’s new 220 Series piston pump signifies a step change in the generation of hydraulic power. Utilizing the latest developments in hydraulic pump technology, the 220 is specifically designed for low flow, high pressure applications. It is currently available in 28cc (1.71 cubic inches) displacement with future plans to include the development of 18cc and 45cc displacements in the family. With a wide range of pump controls, the 220 is rated for 280 bar and 3,000 rpm making it the ideal pump for an array of different mobile and stationary applications. Capable of generating over 52.6 horsepower (39.2kW), the 28cc 220 provides more power in a smaller, compact package. This increased power generation allows equipment manufacturers to design more productive, powerful vehicles with a longer life.

The new 220 design also incorporates many new advances in product reliability. Once equipment is in the field, pump failures can prove to be extremely expensive and costly downtime results. The 220 blends Eaton’s long tradition in providing quality pumps with the latest design and technology methods to ensure long lasting product reliability. The result is a very simple design, consisting of almost 25% fewer parts than previously designed pumps.

Eaton employs a unique system of tools and processes, known as Eaton Business System, to ensure quality development and delivery of the 220 product. These tools and process include such known methods as Design for Six Sigma, Lean Manufacturing and ISO certification. Our global network of manufacturing locations and distribution partners enables the 220 to be flexibly configured and delivered throughout the world. Eaton’s vision is to be our customer’s preferred global supplier of fluid power components. By incorporating the latest advancements in hydraulic pump design and manufacturing, the 220 delivers greater value in terms of power and reliability.

Typical Applications

Construction• WheelLoaders• BackhoeLoaders

Agriculture•Tractors•HarvestingEquipment

TruckandBus• SaltandSandSpreaders• VacuumTrucks

MaterialHandling•ArialWorkPlatforms

OtherMobile•FanDrives

Features and Benefits

• Lowermaintenancecostsduetolongerpumplifeandsimplerdesign

• Moreenginecompartmentflexibilityduetocompactsize

• Increasedhydraulicpowerperdisplacement

• Greaterfuelsavingsduetoreducedweightandhighefficiencydesign

• LowNoiseresultingfromlowweightandoptimizedvalveplate

220 Series Piston Pump

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3EATON 220 Mobile Piston Pump Technical Manual E-PUOV-TP001-E November 2012

Table of Contents

ModelCodes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

SpecificationsandPerformance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Control Options

LoadSenseandPressureCompensator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

PressureCompensator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Performance

AEC028 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

PumpInstallation

B-mount–Rear-ported . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

B-mount–Side-ported . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

ControlInstallation

LoadSenseandPressureCompensator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

PressureCompensator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

ExternalManualStrokeAdjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

InputShaftOptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

InstallationandStart-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

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Model Codes220 Mobile Piston Pump

1 2 3 Pump SeriesAEC –220SeriesOpenCircuitPiston Pump

4 5 6 Pump Displacement028 –28.0cm3/r [1 .71 in3/r]

7 Input Shaft RotationR–RightHandL –LeftHand

8 9 Front Mount and Shaft05–2BoltB,22.2mm(0.88)

Dia.KeyedShaft09 –2BoltB,13Tooth16/32

Spline31–2BoltB,25.4mm(1.00in)

DiaStraightKeyed34–2BoltC,15Tooth

16/32Spline

10 11 Main Ports Size & Location

AB–SidePorts Suction-1.63”O-RingPressure-1.06”O-Ring

AD–SidePorts Suction-M42MetricO-Ring Pressure-M27MetricO-Ring

12 Case Drain PortsA – #10SAEO-Ring-TopB – #10SAEO-Ring-Bottom C–M22x1.5O-Ring-TopD–M22x1.5O-Ring-Bottom

13 Diagnostic Pressure Ports Not available on thru-drive units

1 – #4SAEO-RingPort-Plugged

2–M12X1.5MetricO-RingPort-Plugged

14 Controller TypeA–PressureFlow

CompensatorWith #4SAEO-Ring LoadSensePort

B–PressureFlowCompensatorWith M14MetricO-Ring LoadSensePort

C–PressureCompensatorOnly

15 16 Pressure Compensator Setting (ToleranceonSetting)*

02–76-83bar (1100-1200lbf/in2)

26–193-203bar (2850-2950lbf/in2)

34–234-241bar (3400-3500lbf/in2)

43–276-283bar (4000-4100lbf/in2)

17 18 Flow Compensator Setting (Tolerance onSetting)

00 –NoFlowCompensatorSetting

14–12-15bar (180-220lbf/in2)

20–17-20bar (250-290lbf/in2)

19 20 Torque Control Setting

00–NoTorqueControl

21 22 Control Special Features

00–NoControlSpecialFeatures

0A–BleedDownOrifice

23 Maximum Displacement Option

1–StandardDisplacement (AsGiveninCodeTitle)

2–ExternalManual StrokeAdjustment

24 25 Auxiliary (Rear) Mount & Output Shaft

00–NoAuxiliaryMountingFeatures

26 Shaft Seal

1–StandardPolyacrylate ShaftSeal

27 28 Pump Special Features00 –NoSpecialFeaturesAB–SwashPositionSensor

29 30 Paint

00–NoPaintCD –BluePrimer

31 Identification/Packaging

1–StandardEatonIdentificationBoxPackaging

32 Design LevelA –FirstDesign

AEC 028 R 05 AB A 1 A 28 20 00 00 1 00 1 00 CD 1 A

1 7 12 13 14 21 22 23 262 3 4 5 6 8 9 10 11 15 16 17 18 323129 3027 2824 2519 20

* Additional Settings Available by Request

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Specifications and Performance

Inlet Pressure, Case Pressure, and Operating Temperature RequirementsInlet Pressure Case Pressure Operating Temperature Maximum Maximum Minimum MaximumRated Minimum Maximum Continuous Intermittent Peak Rated Temperature Intermittentbar abs (psig) bar abs (in. Hg) bar abs (psig) bar abs (psig) bar abs (psig) bar abs (psig) °C (°F) °C (°F) °C (°F)

1.0(0) 0.85(5) 4.4(50) 1.3(5) 3.1(30) 6.2(75) 93(200) -25(-13) 104(220)

Hydraulic Fluids Recommended Minimum Viscosity @ Max. Operating Maximum Maximum Viscosity Intermittent Temperature of Minimum Viscosity Range Continuous at Startup 93°C (200°F) IntermittentFluid cSt (SUS) cSt (SUS) cSt (SUS) cSt (SUS) cSt (SUS)

Useantiwearhydraulicoil, 16to40(80to188) 430(1192) 2100(9720) 10(59) 6(46)orautomotivetypecrankcaseoil(designationsSC,SD,SEorSF)perSAEJ183FEB80For more information, see Eaton publication 579. For operation on other alternative or environmentally friendly fluids, please contact your Eaton Representative.

General Performance Specifications

Units AEC018 AEC028 Displacement cc/r (in3/r) 28.0(1.71)Weight1 kg (lbm) 16.3(35.9)Pressure Continuous bar (psi) 280(4060) Intermittent2 320(4600) Peak3 350(5000)Speed4 At1barabs(0psig) rpm 3000 At.85barabs(5in.Hg) 2700 Max(standby) 3600 Min 500Power Max(theoretical) kW (hp) 39.2(52.6) Standby 2.1(2.8)Torque Max(theoretical) Nm (lb-ft) 125(92)Bearing Life5 At140bar(2030psi) B10 Hours 129,000 At210bar(3045psi) 37,800 At280bar(4060psi) 7,680Mass Moment of Inertia Nm-sec2 (lb-in-sec2) 1 StandardSAEBnon-throughdrive.2Lessthan10%ofdutycycle. 3Momentarysystempressurespikesonly. 4RatingsbasedonFlangeports. 5Bearingliferatingsatratedspeed–1barabs(0psig)inlet. Willvarybasedonthrustandsideloads.

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“B” inlet “F” case drain

“C” outlet

To load

“J” load sensesignal port

Optional bleed-down orifice with control special feaure "OA". ø 0.4 mm (.015 in.). Orifice is plugged for no bleed down in control.

“K” inlet gage port(optional)

“K”outlet gage port(optional)

Control OptionsLoad Sense and Pressure Compensator

Load Sense and Pressure Compensator Control

Thepumpwillprovidepowermatchingofpumpoutputtosystemloaddemand,maximiz-ingefficiencyandimprovingloadmeteringcharacteristicsofanydirectionalcontrolvalveinstalledbetweenthepumpandtheload.

Loadsensingensuresthatthepumpalwaysprovidesonlytheamountofflowneededbytheload.Atthesametime,thepumpoperatingpressureadjuststotheactualloadpres-sureplusapressurediffer-entialrequiredforthecontrolaction.Whenthesystemisnotdemandingpower,theloadsensecontrolwilloperateinanenergy-savingstand-bymode.

Typically,thedifferential pressureisthatbetweenthepressureinletandserviceportofaproportionallycontrolleddirectionalvalve,oraloadsensingdirectionalcontrolvalve.Seethemodelcodeonpage4fordifferentialpressuresettingsforloadsensing.

Iftheloadpressureexceeds thesystempressuresetting, thepressurecompensator de-strokesthepump.Theloadsensinglinemustbeasshortaspossibleandcanalsobeusedforremotecontrolorunloadingofthepumppressure.Forremotecontrolpurposes,itisrecommended thatyoucontactyourEatonRepresentativeforthecorrectconfigurationofthecontrol.

Warning:Whenadjustingthepressurelimiter,installa0to350bar(0to5000psi)gageintheoutletgageportandlimitthepressuresettingtothecontinuousratedpressureforthepumpdisplacementshownonpage6.Itispossibletoad-justthepressurecompensatorbeyondtheratedpressureofthepump.Doingso,mayvoidthewarrantyoftheX20pump.

Flow Compensator (Load Sense) Settings

Therearethreesprings usedtocovertheload senseadjustmentrange ofthiscontrol.

Typical Operating Curve

Dynamic Response per SAE J745 (Using Swash Plate Position)

Response Recovery Load Sense (off stroke) (on stroke) Recovery

msec msec msec

AEC028 20 65 70

Outlet Pressure

Outle

t Flo

w

Q

POutlet Pressure

Outle

t Flo

w

Q

P

Code C - Page 8Code A & B - Page 7

Pressure Limit Settings

ThepressurecompensatorusestwospringstocoverthefullpressurerangeoftheX20pumps.Thehighpressurespringcoverstherangefrom140bar(2050psi)to280bar(4060psi).Thelowpressurespringisadjustablefromminimumpressurethrough140bar(2050psi).

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Control OptionsPressure Compensator

Pressure Compensator Control

Thepumpwillprovideacon-tinuouslymodulatedflowtomeetchangingloaddemands atapre-adjustedcompensa-tor pressure . At pressures belowthecompensatorset-ting,thepumpwilloperate atmaximumdisplacement.Seemodelcodeonpage4forcompensatorpressureranges.

Warning:Whenadjustingthepressurelimiter,installa0to350bar(0to5000psi)gageintheoutletgageportandlimitthepressuresettingtothecontinuousratedpressureforthepumpdisplacementshownonpage6.Itispossibletoadjustthepressurecompensatorbeyondtheratedpressureofthepump.Doingso,mayvoidthewarrantyoftheX20pump .

Pressure Limit Settings

ThepressurecompensatorusestwospringstocoverthefullpressurerangeoftheX20pumps.Thehighpressurespringcoverstherangefrom140bar(2050psi)to280bar(4060psi).Thelowpressurespringisadjustable fromminimumpressurethrough140bar(2050psi).

Pressure Cut-off Characteristics of Pressure Compensa-tor Control @49°C(120°F), StaticConditions.

“K” Inlet Gage Port

“B” Inlet

“F” Case Drain

“C” Outlet

To Load

See Model Code on Page 4 for Spring (Pressure) Adjustment Ranges.

“K” Outlet Gage Port

Change in Pressure A

Outlet Pressure

Outle

t Flo

w Change

in Flow B

Q

P

+

+

Dynamic Response per SAE J745 (Using Swash Plate Position) Response Recovery (off stroke) (on stroke)

msec msec

AEC098 20 65

Outlet Pressure

Outle

t Flo

w

Q

POutlet Pressure

Outle

t Flo

w

Q

P

Code C - Page 8Code A & B -

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Performance AEC028

Overall Efficiency Versus Speed @ 49ºC (120ºF), Full Flow, and 1.0 bar (0 psi) Inlet

35 bar (507 psi)

70 bar (1015 psi)

140 bar (2030 psi)

210 bar (3045 psi)

280 bar (4060 psi)

65

67

69

71

73

75

77

79

81

83

85

87

500 1000 1500 2000 2500 3000

Effi

cien

cy (

%)

Input Speed (rpm)

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35 bar (507 psi)

70 bar (1015 psi)

140 bar (2030 psi)

210 bar (3045 psi)

280 bar (4060 psi)

65

67

69

71

73

75

77

79

81

83

85

87

500 1000 1500 2000 2500 3000

Effi

cien

cy (

%)

Input Speed (rpm)

Performance AEC028

Input Torque Versus Speed @ 49ºC (120ºF), Full Flow, and 1.0 bar (0 psi) Inlet

Input Power Versus Speed @ 49ºC (120ºF), Full Flow, and 1.0 bar (0 psi) Inlet

35 bar (507 psi)

70 bar (1015 psi)

140 bar (2030 psi)

210 bar (3045 psi)

280 bar (4060 psi)

0

5

10

15

20

25

30

35

40

45

50

55

60

500 1000 1500 2000 2500 3000

Inp

ut

Po

wer

(H

P)

Input Speed (rpm)

280 bar (4060 psi)

0

250

500

750

1,000

1,250

1,500

500 1000 1500 2000 2500 3000

Inp

ut

Torq

ue

(in

-lb

)

Input Speed (rpm)

210 bar (3045 psi)

140 bar (2030 psi)

70 bar (1015 psi)

35 bar (507 psi)

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Performance AEC028

Delivery and Case Flow Versus Speed @ 49ºC (120ºF)

35 bar (507 psi)

280 bar (4060 psi)

35 bar (507 psi)

280 bar (4060 psi)

0.0

1.0

2.0

3.0

4.0

5.0

0

5

10

15

20

25

500 1000 1500 2000 2500 3000

Del

iver

y (g

pm

)

Input Speed (rpm)

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Pump InstallationB-mount / Rear-ported

RH Rotation

B-Mount/RearPorted

A

A

Approximate Center of Gravity

For Shaft Con�gurationSee Seperate ShaftInstallation Drawing

For Compensator Con�gurationSee Seperate CompensatorInstallation Drawing

Left Side Case Drain


Top Case Drain

Suction Diagnostic Port

Vertical Case Drain

Pressure Port19.1 [.75] SAE J518(Code 61)

Suction Port31.8 [1.25] SAE J518

(Code 61)

4X 0.375-16 UNC-2B 22 [0.87]4X 0.4375-14 UNC-2B

28 [1.1]

Bottom Case Drain

Pressure Diagnostic Port

106.64.20[ ]

(Top Case Drain)

69.32.73[ ]

(Bottom Case Drain)

63.32.49[ ] 73.7

2.90[ ]

146.05.75[ ]

174.06.85[ ]

2X 14.3.56[ ]

181.07.13[ ]

67.02.64[ ]

4.4.17[ ]

85.43.36[ ]

40.01.57[ ]

101.64.00[ ]

71.02.80[ ]

69.02.72[ ]

64.42.54[ ]

67.72.66[ ]

68.72.70[ ]

35.51.40[ ]

37.51.48[ ]

65.02.56[ ]

144.55.69[ ]

30.01.18[ ]

33.21.31[ ]

144.45.68[ ]

9.4.37[ ]

2X 47.81.88[ ]

2X 22.2.87[ ]

2X 58.72.31[ ]

2X 30.21.19[ ]

18.9.74[ ]

86.13.39[ ]

15.5.61[ ]

5.4.21[ ]

View A-A

LH Rotation

SAE O-Ring Port (RH)

Right Side Case Drain

Pressure Port Suction Port

Suction PortSAE J1926/1:

1-5/8-12

Pressure PortSAE J1926/1: 1-1/16-12

67.02.64[ ]

4.4.17[ ]

2X 47.81.88[ ]

2X 22.2.87[ ]

2X 30.21.19[ ]

2X 58.72.31[ ]

37.51.48[ ]

35.51.40[ ]

35.51.40[ ]

37.51.48[ ]




1-5/8-12


67.02.64[ ]

4.4.17[ ]

2X 47.81.88[ ]

2X 22.2.87[ ]

2X 30.21.19[ ]

2X 58.72.31[ ]

37.51.48[ ]

35.51.40[ ]

35.51.40[ ]

37.51.48[ ]




1-5/8-12


67.02.64[ ]

4.4.17[ ]

2X 47.81.88[ ]

2X 22.2.87[ ]

2X 30.21.19[ ]

2X 58.72.31[ ]

37.51.48[ ]

35.51.40[ ]

35.51.40[ ]

37.51.48[ ]

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Pump InstallationB-mount / Side-ported

RH Rotation

B-Mount2Bolt/SidePorted

A

A

For Shaft Configuration See Seperate Shaft Installation Drawing

For Compensator ConfigurationSee Seperate CompensatorInstallation Drawing

Pressure Port19.1 [.75] SAE J518

(Code 61)

4X 0.4375-14 UNC-2B 24 [0.9]


Left Side Case DrainApproximate Center of Gravity

Top Case Drain

Suction Diagnostic Port

Vertical Case Drain

Bottom Case Drain

Pressure Diagnostic Port

(Top Case Drain)

69.32.73[ ]

(Bottom Case Drain)

63.32.49[ ]

146.005.75[ ]

2X 14.3.56[ ]

101.64.00[ ]

71.02.80[ ]

85.43.36[ ]

40.01.57[ ]

9.4.37[ ]

30.01.18[ ]

144.55.69[ ]

68.72.70[ ]

67.02.64[ ]

4.4.17[ ]

33.21.31[ ]

144.45.68[ ]

106.74.20[ ]

2X 47.61.88[ ]

2X 22.2.88[ ]

18.9.74[ ]

65.02.56[ ]

66.02.60[ ]

74.12.92[ ]

160.56.32[ ]186.57.34[ ]

186.57.34[ ]

89.13.51[ ]

15.9.63[ ]

5.0.20[ ]


Suction Port31.8 [1.25] SAE J518(Code 61)

4X 0.375-16 UNC-2B 22 [0.87]


View A-A LH Rotation

SAE O-ring Suction Port (RH) SAE O-Ring Pressure Port (RH)

Suction PortSAE J1926/1:1-5/8-12

Pressore PortSAE J1926/1:

1-1/16-12

67.02.64[ ]

4.4.17[ ]

2X 58.72.31[ ]

2X 30.21.19[ ]

160.56.32[ ]

160.56.32[ ]

160.56.32[ ]



4X 0.375-16 UNC-2B 22 [0.87]






1-1/16-12

67.02.64[ ]

4.4.17[ ]

2X 58.72.31[ ]

2X 30.21.19[ ]

160.56.32[ ]

160.56.32[ ]

160.56.32[ ]


SAE O-Ring Suction Port (RH) SAE O-Ring Pressure Port (RH)



4X 0.375-16 UNC-2B 22 [0.87]






1-1/16-12

67.02.64[ ]

4.4.17[ ]

2X 58.72.31[ ]

2X 30.21.19[ ]

160.56.32[ ]

160.56.32[ ]

160.56.32[ ]



4X 0.375-16 UNC-2B 22 [0.87]






1-1/16-12

67.02.64[ ]

4.4.17[ ]

2X 58.72.31[ ]

2X 30.21.19[ ]

160.56.32[ ]

160.56.32[ ]

160.56.32[ ]

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Control InstallationLoad Sense and Pressure Compensator

126.04.96[ ]

97.93.85[ ]

135.55.33[ ]

65.92.59[ ]

Max. Length Pressure Compensator

199.0 Min. Length Pressure Compensator[7.83]

217.08.54[ ]

Max. Length Load sense

206.8 Min. Length Load Sense[8.14]

208.88.22[ ]

51.72.03[ ]

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Control InstallationPressure Compensator

Min.47.01.85[ ]

93.13.66[ ]

67.42.65[ ]

107.34.22[ ]

Max.

186.4 Min.[7.34]

205.18.07[ ]

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External Manual Stroke AdjustmentMaximum Stroke Limiter

Max Displacement is ReducedBy Approximately 6 to 7%Per Clockwise Turn

Compensator/ControlNot Shown for Clarity

90.03.54[ ]

20˚

143.55.65[ ]

Max Displacement

12.0.47[ ]

60% of MaxDisplacement

6.4.25[ ]

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Input Shaft Options

56.0[2.20]

7.94+.03-.01

.313+.001-.000

Key Width[ ]

35.19[1.385]

2.0[.08]

34.9[1.38]

Ø31.70 +.06-.00

[ 1.248+.002-.000 ]

05 CodeMaximum Torque450 Nm [3980 in-lbf]

9.53+.03-.00

.375 +.001-.000

Key Width[ ]

62.0[2.44]

42.2[1.66]

25.1[.99]

2.0[.08]

Ø38.05+.05-.00

[1.498 +.001-.000 ]


62.0[2.44]

08 Code

Ø37.49[1.476] 17 Tooth 30°Flat Root Side Fit 12/24 Per ANSI B92.1a-1976Fit 17 Tooth 30° Flat RootSide Fit 12/24 Internal SplinesPer ANSI B92.1a-1976 Class 6

Maximum Torque765 Nm [7665 in-lbf]

56.0[2.20]

Ø31.05[1.2262] 14 Tooth 30°Flat Root Side Fit 12/24Per ANSI B92.1a-1976Fit 14 Tooth 30° Flat RootSide Fit 12/24 Internal SplinesPer ASA B5.15-1960 Class 6


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Fluid Cleanliness

TheX20Seriespumpsareratedinanti-wearpetroleumfluidswithacontaminationlevelof21/18/13perISO4066.Operationinfluidswithlevelsmorecontaminatedthanthisisnotrecommended.Fluidsotherthanpetroleum,severeservicecycles,ortemperatureextremesarecauseforadjustmentofthesecodes.PleasecontactyourEatonRepresentativeforspecificdutycyclerecommendation.

EatonX20Seriespumps,as withanyvariabledisplacementpistonpumps,willoperatewithapparentsatisfactioninfluidsuptotheratingspecifiedhere.Experiencehasshownhowever,thatpumpandhydraulicsystemlifeisnotoptimizedwithhighfluidcontaminationlevels(highISOcleanlinesscodes).

Properfluidconditionis essentialforlongand

satisfactorylifeofhydrauliccomponentsandsystems.Hydraulicfluidmusthavethecorrectbalanceofcleanliness,materials,andadditivesforprotectionagainstwearofcomponents,elevatedviscosityandinclusionofair.

Essentialinformationonthe correctmethodsfortreatinghydraulicfluidisincludedinEatonpublication561–

“EatonGuidetoSystemicContaminationControl”–availablefromyourlocalEatondistributor.Inthispublication,filtrationandcleanlinesslevelsforextendingthelifeofaxialpistonpumpsandothersystemcomponentsarelisted.Includedisanexcellentdiscussionoftheselectionofproductsneededtocontrolfluidcondition.

Installation and Start-up

Warning:Careshouldbetakenthatmechanicalandhydraulicresonancesareavoidedintheapplicationofthepump.Suchresonancescanseriouslycompromisethelifeand/orsafeoperationofthepump.

Drive Data

Mountingattitudeshouldbe horizontalusingtheappropriatecasedrainportstoensurethatthecaseremainsfulloffluidatalltimes.ConsultyourlocalEatonRepresentativeifadifferentarrangementisrequired.

Inthosecaseswheregeometrictolerancesofmountingarecritical,orwherespecifictolerancerangesarerequiredandnotspecified,consultEatonEngineeringforspecificlimits .

Directionofshaftrotation,viewedfromtheprimemoverend,mustbeasindicatedinthemodeldesignationonthepump–eitherrighthand (clockwise)orlefthand (counterclockwise).

Directcoaxialdrivethrough aflexiblecouplingisrecommended.Ifdrivesimposing radialshaftloadsareconsidered,pleaseconsultyourEatonRepresentative.

Start-up Procedure

Makesurethereservoirand circuitarecleanandfreeofdirt/debrispriortofillingwithhydraulicfluid.

Fillthereservoirwithfiltered oilandfilltoalevelsufficientenoughtopreventvortexingatthesuctionconnectiontopumpinlet.Itisgoodpracticetocleanthesystembyflushingandfiltering,usinganexternalslavepump.

Caution:Beforethepumpisstarted,fillthecasethrough theuppermostdrainportwithhydraulicfluidofthetypetobeused.Thecasedrainlinemustbeconnecteddirectlytothereservoir andmustterminatebelowtheoillevel.

Oncethepumpisstarted, itshouldprimewithinafew seconds.Ifthepumpdoesnotprime,checktomakesurethattherearenorestrictionsbetweenthereservoirandtheinlettothepump,andthatthepumpisbeingrotatedintheproperdirection,andthattherearenoairleaksintheinletlineandconnections.Alsochecktomakesurethattrappedaircanescapeatthepumpoutlet .

Afterthepumpisprimed, tightenthelooseoutletconnections,thenoperateforfivetotenminutes(unloaded)toremovealltrappedairfromthecircuit.

Ifthereservoirhasasightgage,makesurethefluidisclear –notmilky.

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©2012EatonCorporationAllRightsReservedPrintedinUSADocumentNo.E-PUOV-TP001-ENovember2012

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