Danfoss Series 90 Axial Piston Pumps User guide

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Technical Information

Series 90

Axial Piston Pumps

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Technical Information

Series 90 Axial Piston Pumps

Revision history Table of revisions

Date Changed Rev

March 2022 Additional note onto Mating pump requirements at Features and Options 0910

September 2021 Modified KN at control option "M" on MMC 0909

June 2021 Deleted Size 042 information. 0908

March 2020 Removed restricted options 0907

February 2020 Changed document number from BC00000015 and increased version by 0101 0906

January 2020 Corrected 075 dimension drawing 0805

March 2016 Minor edit 0804

January 2015 correction to O-ring sizing - page 77 HC

May 2014 corrections to pin assignments - page 48 HB

February 2014 Danfoss Layout HA

2 | © Danfoss | March 2022 BC152886483413en-000910

Technical Information

Series 90 Axial Piston Pumps

General Description

Series 90 Family of Pumps and Motors.....................................................................................................................................5

PLUS+1 Compliant Controls and Sensors................................................................................................................................5

Design...................................................................................................................................................................................................6

Series 90 Pictorial Circuit Diagram............................................................................................................................................. 7

System schematic.............................................................................................................................................................................7

Technical Specifications

General Specifications.................................................................................................................................................................... 8

Features and Options......................................................................................................................................................................8

Operating Parameters.....................................................................................................................................................................9

Fluid Specification............................................................................................................................................................................9

Operating Parameters

Input Speed......................................................................................................................................................................................10

Independent Braking System...............................................................................................................................................10

System Pressure..............................................................................................................................................................................10

Servo Pressure.................................................................................................................................................................................12

Charge Pressure..............................................................................................................................................................................12

Charge Pump Inlet Pressure.......................................................................................................................................................12

Case Pressure...................................................................................................................................................................................12

External Shaft Seal Pressure....................................................................................................................................................... 13

Temperature.................................................................................................................................................................................... 13

Viscosity.............................................................................................................................................................................................13

System Design Parameters

Filtration System.............................................................................................................................................................................14

Filtration Options...........................................................................................................................................................................14

Suction filtration – Option S................................................................................................................................................. 14

Charge pressure filtration (partial charge pump flow)............................................................................................... 15

Remote charge pressure filtration......................................................................................................................................15

Fluid Selection.................................................................................................................................................................................15

Reservoir............................................................................................................................................................................................15

Case Drain.........................................................................................................................................................................................16

Pump Life..........................................................................................................................................................................................16

Charge Pump...................................................................................................................................................................................16

Charge pump sizing/selection.............................................................................................................................................16

Bearing Loads and Life.................................................................................................................................................................17

Applications with external shaft loads..............................................................................................................................17

Understanding and Minimizing System Noise....................................................................................................................18

Sizing Equations............................................................................................................................................................................. 18

Mounting Flange Loads...............................................................................................................................................................19

Master Model Code

Series 90 Master Model Code Breakdown............................................................................................................................ 21

S90 Rotation and Size Options..................................................................................................................................................21

Control Options.............................................................................................................................................................................. 22

Pressure, Aux Mounting, Ports, Filtration, Displacement Limitation Options......................................................... 23

Shaft and Charging System........................................................................................................................................................24

Control Orifice Options................................................................................................................................................................25

Special Hardware and Pressure Settings...............................................................................................................................26

Control Features

3-Position (FNR) Electric Control - DC, DD............................................................................................................................ 27

Response time........................................................................................................................................................................... 28

Electric Displacement Control (EDC), Options KA, KP, KT................................................................................................28

Features and Benefits..............................................................................................................................................................28

Response time........................................................................................................................................................................... 31

Pump output flow direction vs. control current............................................................................................................31

Manual Over Ride (MOR)............................................................................................................................................................. 32

Hydraulic Displacement Control (HDC), Option HF, HS...................................................................................................33

Danfoss | March 2022 BC152886483413en-000910 | 3

Technical Information

Series 90 Axial Piston Pumps

Contents

Operation.....................................................................................................................................................................................33

Features and Benefits..............................................................................................................................................................33

Response time........................................................................................................................................................................... 34

Pump output flow direction vs. control pressure.........................................................................................................34

Manual Displacement Control (MDC), Options MA, MB.................................................................................................. 35

Features and benefits..............................................................................................................................................................35

External control handle requirements..............................................................................................................................36

Response Time...........................................................................................................................................................................36

Pump output flow direction vs. control handle rotation...........................................................................................37

Neutral start switch (NSS) for MDC..........................................................................................................................................37

Non Feedback Proportional Electric Control (NFPE) ........................................................................................................37

Control response.......................................................................................................................................................................37

NFPE control used with a Danfoss microcontroller......................................................................................................38

Input signal requirements.....................................................................................................................................................38

Features and Options

Multi-Function Valves...................................................................................................................................................................40

Overpressure protection........................................................................................................................................................40

Pressure limiting function..................................................................................................................................................... 40

Bypass Function........................................................................................................................................................................ 41

Auxiliary Mounting Pads............................................................................................................................................................. 41

Mating pump requirements................................................................................................................................................. 41

Displacement Limiter................................................................................................................................................................... 42

Shaft Torque.....................................................................................................................................................................................43

Shaft torque and spline lubrication................................................................................................................................... 43

Shaft torque for tapered shafts............................................................................................................................................43

Shaft Availability and Torque Ratings.....................................................................................................................................44

Tapered Shaft Customer Acknowledgement.................................................................................................................45

Charge Pump...................................................................................................................................................................................45

Charge pump sizing/selection.............................................................................................................................................45

Charge pump flow and power curves...............................................................................................................................46

Speed Sensor...................................................................................................................................................................................47

Connector Pin Assignments.......................................................................................................................................................49

Installation Drawings

Frame Size 055................................................................................................................................................................................ 50

Frame Size 075................................................................................................................................................................................ 54

Frame Size 075 NFPE Options FK, FL, FM, FN.......................................................................................................................57

Frame Size 100................................................................................................................................................................................ 62

Frame Size 130................................................................................................................................................................................ 67

Frame Size 180................................................................................................................................................................................ 71

Frame Size 250................................................................................................................................................................................ 75

Cover Plate........................................................................................................................................................................................78

3-Position (F-N-R) Electric Control........................................................................................................................................... 79

Electric Displacement Control (EDC) with MS-Connector or Packard® connector.................................................80

Hydraulic Displacement Control (HDC)................................................................................................................................. 80

Manual Displacement Control (MDC) with neutral start switch................................................................................... 81

Electrohydraulic Displacement Control (NFPE)(except 075 NFPE).............................................................................. 82

Integral Pressure Filter................................................................................................................................................................. 83

Remote pressure – without filter..............................................................................................................................................83

4 | © Danfoss | March 2022 BC152886483413en-000910

Technical Information

Series 90 Axial Piston Pumps

General Description

Series 90 Family of Pumps and Motors

Series 90 hydrostatic pumps and motors can be applied together or combined with other products in a system to transfer and control hydraulic power. They are intended for closed circuit applications.

Series 90 – advanced technology

•

Seven sizes of variable displacement pumps

•

Proven reliability and performance

•

Compact, lightweight

•

Worldwide sales and service

•

PLUS+1™ compliant controls and sensors

•

Series 90 variable displacement pumps are compact, high power density units. All models utilize the parallel axial piston/slipper concept in conjunction with a tiltable swashplate to vary the pump’s displacement. Reversing the angle of the swashplate reverses the flow of oil from the pump and thus reverses the direction of rotation of the motor output.

Series 90 pumps include an integral charge pump to provide system replenishing and cooling oil flow, as well as control fluid flow. They also feature a range of auxiliary mounting pads to accept auxiliary hydraulic pumps for use in complementary hydraulic systems. A complete family of control options is available to suit a variety of control systems (mechanical, hydraulic, electric).

Series 90 motors also use the parallel axial piston/slipper design in conjunction with a fixed or tiltable swashplate. They can intake/discharge fluid through either port; they are bidirectional. They also include an optional loop flushing feature that provides additional cooling and cleaning of fluid in the working loop. For more information on Series 90 motors, refer to Series 90 Motors Technical Information

BC152886483265.

PLUS+1 Compliant Controls and Sensors

A wide range of Series 90 controls and sensors are PLUS+1™ compliant. PLUS+1 compliance means our controls and sensors are directly compatible with the PLUS+1 machine control architecture. Adding Series 90 pumps to your application using PLUS+1 GUIDE software is as easy as drag-and-drop. Software development that used to take months can now be done in just a few hours. For more information on PLUS+1 GUIDE, visit www.sauer-danfoss.com/plus1.

Series 90 pumps can be used together in combination with other Danfoss pumps and motors in the overall hydraulic system. Danfoss hydrostatic products are designed with many different displacement, pressure and load-life capabilities.

Go to the Danfoss website or applicable product catalog to choose the components that are right for your complete closed circuit hydraulic system.

Danfoss | March 2022 BC152886483413en-000910 | 5

P106 648E

Slider block

Servo piston

Servo arm

Displacement control

Cradle bearing

Charge pump

Swashplate

Cradle guide

Feedback linkage

Roller bearing

Shaft

Piston

Slipper

Valve plate

Cylinder block

Input shaft

Rear bushing

Bushing

seal

Model-No./Ident-No.

Model Code

Serial-No.

Made in USA

Place of Manufacture

Model Number

Serial Number

Model Code

A - 88 - 126 - 67890

501829

P108494E

90L055 KA 1 N 6 S 3 C6 C 03 NNN 35 35 24

Technical Information

Series 90 Axial Piston Pumps

General Description

Design

Series 90 pump cross-section

Typical name plate

Series 90 pumps are also manufactured in Europe and China. Place of manufacture shown on nameplate will correspond with the actual place of manufacture.

6 | © Danfoss | March 2022 BC152886483413en-000910

Pump Motor

Working loop (low pressure)

Control fluid

Suction line

Case drain fluid

Working loop (high pressure)

Motor swashplate

Loop flushing valve

Displacement control valve

Heat exchanger bypass valve

Reservoir

Vacuum gauge

Purge relief valve

Fixed displacement motor

Output shaft

Multi-function valve

Charge pump

To pump

case Servo pressure relief valves

Servo control cylinder

Pump swashplate

Input shaft

Reversible variable displacement pump

Servo control cylinder

Heat exchanger

Multi-function valve

Charge pressure relief valve

Orificed check valve

Control handle

P102 000

A A

L2 M1

P104 286E

Technical Information

Series 90 Axial Piston Pumps

General Description

Series 90 Pictorial Circuit Diagram

The circuit diagram shows a hydrostatic transmission using a Series 90 axial piston variable displacement pump and a Series 90 fixed displacement motor.

System schematic

Danfoss | March 2022 BC152886483413en-000910 | 7

Technical Information

Series 90 Axial Piston Pumps

Technical Specifications

General Specifications

Design Axial piston pump of cradle swashplate design with variable displacement Direction of rotation Clockwise, counterclockwise Pipe connections Main pressure ports: ISO split flange boss

Remaining ports: SAE straight thread O-ring boss

Recommended installation position Pump installation position is discretionary, however the recommended control position is on the top

or at the side, with the top position preferred. Vertical input shaft installation is acceptable. If input shaft is at the top 1 bar case pressure must be maintained during operation. The pump housing must be filled with hydraulic fluid under all conditions; including after a long period of shutdown. Before operating the machine, ensure the pump housing and case drain lines are free of air. Recommended mounting for a multiple pump stack is to arrange the highest power flow towards the input source. Consult Danfoss for nonconformance to these guidelines.

Auxiliary cavity pressure Will be inlet pressure with internal charge pump. For reference see Operating Parameters. Will be case

pressure with external charge supply. Please verify mating pump shaft seal capability.

Features and Options

Feature Unit Frame

055 075 100 130 180 250

Displacement cm³/rev.

[in³]/rev.

Flow at rated speed (theoretical) l/min.

[US gal/min.]

Torque at maximum displacement (theoretical)

Mass moment of inertia of rotating components

Weight (with control opt. MA) kg [lb] 40 [88] 49 [108] 68 [150] 88 [195] 136 [300] 154 [340] Mounting (per ISO 3019-1) Flange

Rotation Right hand or Left hand rotation Main ports: 4-bolt split-flange

(per SAE J518 code 62) Main port configuration Twin or side port Twin port Case drain ports (SAE O-ring boss) UNF thread

Other ports SAE O-ring boss Shafts Splined, and tapered shafts available Auxiliary mounting SAE-A, B, C SAE-A, B, C, D SAE-A, B, C, D, E

N•m/bar [lbf•in/1000 psi]

kg•m² [slug•ft²]

mm [in]

(in.)

55 [3.35]

215 [57]

0.88 [530]

0.0060 [0.0044]

127-4 (SAE C)

25.4 [1.0]

1.0625–12 1.0625–12 1.0625–12 1.3125–12 1.625–12 1.625–12

75 [4.59]

270 [71]

1.19 [730]

0.0096 [0.0071]

25.4 [1.0]

100 [6.10]

330 [87]

1.59 [970]

0.0150 [0.0111]

25.4 [1.0]

130 [7.93]

403 [106]

2.07 [1260]

0.023 [0.0170]

Flange 152-4 (SAE D)

31.75 [1.25]

180 [10.98]

468 [124]

2.87 [1750]

0.0380 [0.0280]

Flange 165-4 (SAE E)

31.75 [1.25]

250 [15.25]

575 [160]

3.97 [2433]

0.0650 [0.0479]

38.1 [1.5]

8 | © Danfoss | March 2022 BC152886483413en-000910

Technical Information

Series 90 Axial Piston Pumps

Technical Specifications

Operating Parameters

Parameter Unit Frame

055 075 100 130 180 250

Input speed Minimum min-1(rpm) 500 500 500 500 500 500 Rated Speed 3900 3600 3300 3100 2600 2300 Maximum 4250 3950 3650 3400 2850 2500

Operating parameters

System pressure Maximum working pressure bar [psi] 450 [6525]

Maximum pressure 480 [6960] Maximum low loop 45 [650] Minimum low loop pressure 10 [145]

Charge pressure Minimum bar [psi] 18 [261]

Maximum 34 [493]

Control pressure Minimum (at corner power for EDC and FNR) bar [psi] 14 [203]

Minimum (at corner power for NFPE) 22 [319] Maximum 40 [580]

Charge pump inlet pressure

Case pressure Rated bar [psi] 3.0 [44]

Lip seal external pressure Maximum bar [psi] 0.4 [5.8}

Rated bar (absolute) [in Hg vacuum] 0.7 [9] Minimum (cold start) 0.2 [24] Maximum bar [psi] 4.0 [58]

Maximum 5.0 [73]

Fluid Specification

Viscosity

Intermittent Minimum Recommended range Maximum

Intermittent = Short term t < 1 min per incident and not exceeding 2 % of duty cycle based load-life.

5 mm2/s [42 SUS]

7 mm2/s [49 SUS]

12 – 80 mm2/s [66 – 370 SUS]

1600 mm2/s [7500 SUS]

Temperature

Minimum Rated Recommended range Maximum Intermittent

Cold start = Short term t > 3 min, p ≤ 50 bar [725 psi], n ≤ 1000 min-1 (rpm).

At the hottest point, normally case drain port.

Danfoss | March 2022 BC152886483413en-000910 | 9

-40°C [-40°F]

104°C [220°F]

60 – 85°C [140 – 185°F]

115°C [240°F]

Technical Information

Series 90 Axial Piston Pumps

Operating Parameters

Input Speed

Minimum speed

Rated speed is the highest input speed recommended at full power condition. Operating at or

Maximum speed

During hydraulic braking and downhill conditions, the prime mover must be capable of providing sufficient braking torque in order to avoid pump over speed. This is especially important to consider for turbo-charged and Tier 4 engines.

For more information please see Pressure and Speed Limits, BC152886484313, when determining speed limits for a particular application.

Independent Braking System

is the lowest input speed recommended during engine idle condition. Operating below minimum speed limits the pump’s ability to maintain adequate flow for lubrication and power transmission.

below this speed should yield satisfactory product life. Operating conditions between rated and maximum speed should be restricted to less

than full power and to limited periods of time.

is the highest operating speed permitted. Exceeding maximum speed reduces product life and can cause loss of hydrostatic power and braking capacity. For most drive systems, maximum unit speed occurs during downhill braking or negative power conditions.

Warning

Never exceed the maximum speed limit under any operating conditions.

System Pressure

Unintended vehicle or machine movement hazard. Exceeding maximum speed may cause a loss of

hydrostatic drive line power and braking capacity. Machine manufacturer is responsible to provide a braking system, redundant to the hydrostatic transmission, sufficient to stop and hold the vehicle or machine in the event of hydrostatic drive power loss. The braking system must also be sufficient to hold the machine in place when full power is applied.

Hydraulic unit life depends on the speed and normal operating — or weighted average — pressure that can only be determined from a duty cycle analysis.

System pressure is the differential pressure between high pressure system ports. It is the dominant

operating variable affecting hydraulic unit life. High system pressure, which results from high load, reduces expected life.

Application pressure

Maximum working pressure

is the high pressure relief or pressure limiter setting normally defined within the order code of the pump. This is the applied system pressure at which the drive line generates the maximum calculated pull or torque in the application.

is the highest recommended application pressure and is not intended to be a continuous pressure. Propel systems with application pressures at, or below this pressure should yield satisfactory unit life given proper component sizing. Application pressures above maximum working pressure will only be considered with duty cycle analysis and factory approval.

Pressure spikes are normal and must be considered when reviewing maximum working pressure.

10 | © Danfoss | March 2022 BC152886483413en-000910

Technical Information

Series 90 Axial Piston Pumps

Operating Parameters

Maximum pressure

Minimum low loop pressure

is the highest intermittent pressure allowed under any circumstances. Applications with applied pressures between rated and maximum require factory approval with complete application, duty cycle, and life expectancy analysis.

must be maintained under all operating conditions to avoid cavitation.

All pressure limits are differential pressures referenced to low loop (charge) pressure. Subtract low loop pressure from gauge readings to compute the differential.

Danfoss | March 2022 BC152886483413en-000910 | 11

Technical Information

Series 90 Axial Piston Pumps

Operating Parameters

Servo Pressure

Servo pressure is the pressure in the servo system needed to position and hold the pump on stroke. It depends on system pressure and speed. At minimum servo pressure the pump will run at reduced stroke depending on speed and pressure.

Minimum servo pressure at corner power holds the pump on full stroke at max speed and max

Maximum servo pressure is the highest pressure typically given by the charge pressure setting.

Charge Pressure

An internal charge relief valve regulates charge pressure. Charge pressure supplies the control with pressure to operate the swashplate and to maintain a minimum pressure in the low side of the transmission loop.

The charge pressure setting listed in the order code is the set pressure of the charge relief valve with the pump in neutral, operating at 1800 min-1 (rpm), and with a fluid viscosity of 32 mm2/s [150 SUS].

Pumps configured with no charge pump (external charge supply) are set with a charge flow of 30 l/min [7.93 US gal/min] and a fluid viscosity of 32 mm2/s [150 SUS].

The charge pressure setting is referenced to case pressure. Charge pressure is the differential pressure above case pressure.

pressure.

Charge Pump Inlet Pressure

Case Pressure

Minimum charge pressure

Maximum charge pressure

At normal operating temperature charge inlet pressure must not fall below rated charge inlet pressure (vacuum).

Minimum charge inlet pressure

Maximum charge inlet pressure

Under normal operating conditions, the rated case pressure must not be exceeded. During cold start case pressure must be kept below maximum intermittent case pressure. Size drain plumbing accordingly.

The auxiliary pad cavity of axial pumps configured without integral charge pumps is referenced to case pressure. Units with integral charge pumps have auxiliary mounting pad cavities referenced to charge inlet (vacuum).

is the lowest pressure allowed to maintain a safe working condition in the low side of the loop. Minimum control pressure requirements are a function of speed, pressure, and swashplate angle, and may be higher than the minimum charge pressure shown in the Operating parameters tables.

is the highest charge pressure allowed by the charge relief adjustment, and which provides normal component life. Elevated charge pressure can be used as a secondary means to reduce the swashplate response time.

is only allowed at cold start conditions. In some applications it is

recommended to warm up the fluid (e.g. in the tank) before starting the

engine and then run the engine at limited speed.

may be applied continuously.

Possible component damage or leakage.

Operation with case pressure in excess of stated limits may damage seals, gaskets, and/or housings, causing external leakage. Performance may also be affected since charge and system pressure are additive to case pressure.

12 | © Danfoss | March 2022 BC152886483413en-000910

Technical Information

Series 90 Axial Piston Pumps

Operating Parameters

External Shaft Seal Pressure

In certain applications the input shaft seal may be exposed to external pressure. In order to prevent damage to the shaft seal the maximum differential pressure from external sources must not exceed 0.4 bar (5.8 psi) over pump case pressure.

The case pressure limits of the pump must also be followed to ensure the shaft seal is not damaged.

Regardless of the differential pressure across the shaft seal, the shaft seal has been known to pump oil from the external source (e. g. gear box) into the pump case.

Temperature

The high temperature limits apply at the hottest point in the transmission, which is normally the motor case drain. The system should generally be run at or below the quoted rated temperature.

The maximum intermittent temperature is based on material properties and should never be exceeded.

Cold oil will generally not affect the durability of the transmission components, but it may affect the ability of oil to flow and transmit power; therefore temperatures should remain 16 °C [30 °F] above the pour point of the hydraulic fluid.

The minimum temperature relates to the physical properties of component materials. Size heat exchangers to keep the fluid within these limits. Danfoss recommends testing to verify that

these temperature limits are not exceeded.

Caution

Viscosity

For maximum efficiency and bearing life, ensure the fluid viscosity remains in the recommended range. The minimum viscosity should be encountered only during brief occasions of maximum ambient

temperature and severe duty cycle operation. The maximum viscosity should be encountered only at cold start.

Danfoss | March 2022 BC152886483413en-000910 | 13

Charge pump

Filter

Hydraulic fluid reservoir

Adjustable charge pressu re relief valve

To pump case

To low loop and control

Manomete r

P102 003E

Technical Information

Series 90 Axial Piston Pumps

System Design Parameters

Filtration System

To prevent premature wear, ensure only clean fluid enters the hydrostatic transmission circuit. A filter capable of controlling the fluid cleanliness to ISO 4406 class 22/18/13

(SAE J1165) or better, under normal operating conditions, is recommended. These cleanliness levels can not be applied for hydraulic fluid residing in the component housing/case or

any other cavity after transport. The filter may be located on the pump (integral) or in another location (remote). The integral filter has a filter bypass sensor to signal the machine operator when the filter requires

changing. Filtration strategies include suction or pressure filtration. The selection of a filter depends on a number of factors including the contaminant ingression rate, the generation of contaminants in the system, the required fluid cleanliness, and the desired maintenance interval. Filters are selected to meet the above requirements using rating parameters of efficiency and capacity.

Filter efficiency can be measured with a Beta ratio¹ (βX). For simple suction-filtered closed circuit transmissions and open circuit transmissions with return line filtration, a filter

with a β-ratio within the range of β some open circuit systems, and closed circuits with cylinders being supplied from the same reservoir, a considerably higher filter efficiency is recommended. This also applies to systems with gears or clutches using a common reservoir.

For these systems, a charge pressure or return filtration system with a filter β-ratio in the range of β 75 (β10 ≥ 10) or better is typically required.

Because each system is unique, only a thorough testing and evaluation program can fully validate the filtration system. Please see Design Guidelines for Hydraulic Fluid Cleanliness Technical Information, BC152886482150 for more information.

Filter βx-ratio is a measure of filter efficiency defined by ISO 4572. It is defined as the ratio of the number of particles greater than a given diameter (“x” in microns) upstream of the filter to the number of these particles downstream of the filter.

= 75 (β10 ≥ 2) or better has been found to be satisfactory. For

35-45

15-20

Filtration Options

Warning

Clogged filters can cause cavitation, which damages the charge pump. We recommend a filter bypass with a filter bypass sensor to prevent damage due to blocked suction filters.

Suction filtration – Option S

The suction filter is placed in the circuit between the reservoir and the inlet to the charge pump, as shown below.

The use of a filter contamination monitor is recommended.

Suction filtration

14 | © Danfoss | March 2022 BC152886483413en-000910

To pump case

Charge pump

Hydraulic fluid reservoir

Filter

To low pressure side and control

Screen

Adjustable charge pressure relief valve

P102 004E

Technical Information

Series 90 Axial Piston Pumps

System Design Parameters

Charge pressure filtration (partial charge pump flow)

Two types of pressure filtration exist for most Series 90 pumps. The two types are: remote pressure filtration (filter remotely mounted on vehicle) and integral pressure filtration (filter mounted to the endcap). Verify option availability in the size specific technical information.

In either case the filtration circuit is the same with the filter element situated in the circuit downstream the charge pump and upstream of the charge relief valve such that full charge flow is continuously filtered, as shown in the accompanying illustrations. Charge pressure filtration can mitigate high inlet vacuum in cold start-ups and provides fluid filtration immediately prior to entrance to the loop and the control system. Pressure filtration provides a higher level of filtering efficiency than suction filtration.

Filters used in charge pressure filtration circuits must be rated to at least 35 bar [508 psi] pressure. A 100 – 125 μm screen located in the reservoir or in the charge inlet line is recommended when using charge pressure filtration.

Technical data according to ISO 16889

Nominal flow at 30mm2/s and ∆P 0.5 bar[7.3 psi] (clean filter element only) Minimum β-ratio

Short 60 l/min β7.5(C)=75 (β5(C) ≥10) Long 105 l/min

Remote charge pressure filtration

A special adapter head is available to allow for the charge filter to be located conveniently for easy service and replacement. Care should be taken to minimize the hydraulic pressure drops associated with long connecting lines, small diameter hoses, or restrictive port adaptors at the filter head or endcap. Ensure the normal operating pressure drop across the remote filtration in and out ports is sufficiently below the crack pressure setting of the recommended filter bypass valve.

Charge pressure filtration

Warning

Remote filter heads without bypass and poor plumbing design can encounter excessive pressure drops that can lead to charge pump damage in addition to contaminants being forced through the filter media and into the transmission loop.

Fluid Selection

Ratings and performance data are based on operating with hydraulic fluids containing oxidation, rust and foam inhibitors. These fluids must possess good thermal and hydrolytic stability to prevent wear, erosion, and corrosion of pump components.

Never mix hydraulic fluids of different types.

Reservoir

Danfoss | March 2022 BC152886483413en-000910 | 15

The hydrostatic system reservoir should accommodate maximum volume changes during all system operating modes and promote de-aeration of the fluid as it passes through the tank. A suggested

Technical Information

Series 90 Axial Piston Pumps

System Design Parameters

minimum total reservoir volume is 5⁄8 of the maximum charge pump flow per minute with a minimum fluid volume equal to ½ of the maximum charge pump flow per minute. This allows 30 seconds fluid dwell for removing entrained air at the maximum return flow. This is usually adequate to allow for a closed reservoir (no breather) in most applications.

Locate the reservoir outlet (charge pump inlet) above the bottom of the reservoir to take advantage of gravity separation and prevent large foreign particles from entering the charge inlet line. A 100-125 μm screen over the outlet port is recommended. Position the reservoir inlet (fluid return) to discharge below the normal fluid level, toward the interior of the tank. A baffle (or baffles) will further promote de-aeration and reduce surging of the fluid.

Case Drain

All single S90 pumps are equipped with multiple drain ports. Port selection and case drain routing must enable the pump housing to maintain a volume of oil not less than half full and normal operating case pressure limits of the unit are maintained. Case drain routing and design must consider unit case pressure ratings.

A case drain line must be connected to one of the case outlets to return internal leakage to the system reservoir.

Do not over torque the fitting on case drain port L2 (located on the side cover). The proper torque is 100 N•m [74 lbf•ft] maximum. Over torquing the fitting may change the neutral position of the swashplate.

Pump Life

Charge Pump

Pump life depends on several factors, such as speed, pressure, and swashplate angle. For detailed product life calculation, please contact your Danfoss representative.

Charge flow is required on all Series 90 pumps applied in closed circuit installations. The charge pump provides flow to make up internal leakage, maintain a positive pressure in the main circuit, provide flow for cooling and filtration, replace any leakage losses from external valving or auxiliary systems, and to provide flow and pressure for the control system.

Many factors influence the charge flow requirements and the resulting charge pump size selection. These factors include system pressure, pump speed, pump swashplate angle, type of fluid, temperature, size of heat exchanger, length and size of hydraulic lines, control response characteristics, auxiliary flow requirements, hydrostatic motor type, etc. When initially sizing and selecting hydrostatic units for an application, it is frequently not possible to have all the information necessary to accurately evaluate all aspects of charge pump size selection.

Unusual application conditions may require a more detailed review of charge pump sizing. Charge pressure must be maintained at a specified level under all operating conditions to prevent damage to the transmission. Danfoss recommends testing under actual operating conditions to verify this.

Charge pump sizing/selection

In most applications a general guideline is that the charge pump displacement should be at least 10 % of the total displacement of all components in the system. Unusual application conditions may require a more detailed review of charge flow requirements. Refer to Selection of Drive line Components, BC157786484430, for a detailed procedure.

System features and conditions which may invalidate the 10 % guideline include (but are not limited to):

16 | © Danfoss | March 2022 BC152886483413en-000910

P108 549E

0°Re

90° Re

270° Re

180°Re

Technical Information

Series 90 Axial Piston Pumps

System Design Parameters

•

Bearing Loads and Life

In vehicle propel drives with no external shaft loads , and where the system pressure and swashplate angle are changing direction and magnitude regularly, the normal L20 bearing life (80% survival) will exceed the hydraulic life of the unit.

In non-propel drives, such as vibratory drives, conveyor drives and fan drives, the operating speed and pressure are often nearly constant and the swashplate angle is predominantly at maximum. These drives have a distinct duty cycle compared to a propulsion drive. In these types of applications, a bearing life review is recommended.

For bearing life, speed, pressure, swashplate angle, plus external loads will be considered. Other factors that affect bearing life include fluid type, viscosity, and cleanliness.

Continuous operation at low input speeds (< 1500 min-1 (rpm)) High shock loading and/or long loop lines High flushing flow requirements Multiple Low Speed High Torque motors High input shaft speeds

Applications with external shaft loads

External loads are found in applications where the pump is driven with a side/thrust load (belt drive or gear drive) as well as in installations with misalignment and improper concentricity between the pump and drive coupling. All external loads act to reduce bearing life.

In applications where you cannot avoid external radial shaft loads, orient the load to 0° or 180° position. Use tapered output shafts or clamp-type couplings where radial shaft loads are present.

In addition, external thrust loads can reduce bearing life in systems with low delta pressure or in combination with external radial loads/bending moments.

Re = Me / L Me = Shaft moment L = Flange distance Re = External force

Radial load position

Maximum allowable external shaft load

Parameter 055 075 100 130 180 250

Danfoss | March 2022 BC152886483413en-000910 | 17

External moment (Me) N•m [lbf•in]

* no tapered shaft available

101 [893]

118 [1043]

126 [1114]

140 [1238]

* *

Outp ut f ow Q = (l/min..)

Inp ut torque M = (N•m)

Inp ut power P = = (kW)

SI units Vg= Displacement pe r revolution

(cm3/rev)

∆p = pO- pi(system pressure)

(bar) n = Speed (min-1(rpm)) ηv= Volumetric eff ciency ηm= Mechanical eff ciency ηt= Overall effciency (ηv• ηm)

Vg• n • η

1000

Vg• ∆p

20 • π • η

Q •∆p

600 • η

M • n • π

30 000

= Displacement pe r revolution

(in3/rev) ∆p = pO- pi(system pressure)

(psi) n = Speed (min-1(rpm)) ηv= Volumetric eff ciency ηm= Mechanical eff ciency ηt= Overall effciency (ηv• ηm)

Outp ut f ow Q = (US gal/min..)

Inp ut torque M = (lbf•in)

Inp ut power P = = (hp)

Vg• n • η

231

Vg• ∆p

2 •π • η

Q •∆p

1714 • η

M • n • π 198 000

Technical Information

Series 90 Axial Piston Pumps

System Design Parameters

If continuous applied external radial loads are 25% of the maximum allowable or more or thrust loads/ bending moments known to occur, contact your Danfoss representative for an evolution of bearing life.

Avoid external thrust loads in either direction.

Understanding and Minimizing System Noise

Noise is transmitted in fluid power systems in two ways: as fluid borne noise, and structure borne noise. Fluid-borne noise (pressure ripple or pulsation) is created as pumping elements discharge oil into the

pump outlet. It is affected by the compressibility of the oil, and the pump's ability to transition pumping elements from high to low pressure. Pulsations travel through the hydraulic lines at the speed of sound (about 1400 m/s [4600 ft/sec] in oil) until there is a change (such as an elbow) in the line. Thus, amplitude varies with overall line length and position.

Structure born noise is transmitted wherever the pump casing connects to the rest of the system. The way system components respond to excitation depends on their size, form, material, and mounting.

System lines and pump mounting can amplify pump noise.

Follow these suggestions to help minimize noise in your application:

Use flexible hoses.

•

Limit system line length.

•

If possible, optimize system line position to minimize noise.

•

If you must use steel plumbing, clamp the lines.

•

If you add additional support, use rubber mounts.

•

Test for resonants in the operating range; if possible avoid them.

•

Sizing Equations

The following equations are helpful when sizing hydraulic pumps. Generally, the sizing process is initiated by an evaluation of the machine system to determine the required motor speed and torque to perform the necessary work function. Refer to Selection of drive line components, BC157786484430, for a more complete description of hydrostatic drive line sizing. First, the motor is sized to transmit the maximum required torque. The pump is then selected as a flow source to achieve the maximum motor speed.

18 | © Danfoss | March 2022 BC152886483413en-000910

First stageSecond stage

Third

stage

P108 511E

F2 F1

= g • GR(W1L1+ W2L2+ ... + WnLn)

= g • GS(W1L1+ W2L2+ ... + WnLn)

= Rated load moment N•m

= Shock load mome nt N•m

= Calculation factor for rated (vibratory) acceleration (G’s)*

= Calculation factor for maximum shock acceleration (G’s)*

MR= GR(W1L1+ W2L2+ ... + WnLn) MS= GS(W1L1+ W2L2+ ... + WnLn)

Based on US units

W = Weight of pump [lb] L = Distance from mounting f ang e [in] to pump center of gravity

Where: MR= Rated load moment N•m MS= Shock load mome nt N•m

Technical Information

Series 90 Axial Piston Pumps

System Design Parameters

Mounting Flange Loads

Adding tandem mounted auxiliary pumps and/or subjecting pumps to high shock loads may result in excessive loading of the mounting flange.

Applications which experience extreme resonant vibrations or shock may require additional pump support. The overhung load moment for multiple pump mounting may be estimated using the formula below.

Overhung load example

Estimated maximum and rated acceleration factors for some typical applications are shown in the table below.

Use these values for a rough load estimation in the absence of specific data.

Typical G loads for various applications

Application Calculation factor

Danfoss | March 2022 BC152886483413en-000910 | 19

Skid Steer Loader 8 15-20 Trencher (rubber tires) 3 8 Asphalt Paver 2 6 Windrower 2 5

Rated (vibratory) acceleration G

Maximum (shock) acceleration G

Technical Information

Series 90 Axial Piston Pumps

System Design Parameters

Typical G loads for various applications (continued)

Application Calculation factor

Aerial Lift 1.5 4 Turf Care Vehicle 1.5 4 Vibratory Roller 6 10 T000 165E

Allowable overhung load moment values are shown in the following table.

Allowable overhung load moments

Frame size Rated moment (MR) Shock load moment (MS)

055 1580 14 000 5650 50 000 075 1580 14 000 5650 50 000 100 1580 14 000 5650 50 000 130 3160 28 000 10 730 95 000 180 6070 54 000 20 600 182 000 250 6070 54 000 20 600 182 000

Rated (vibratory) acceleration G

N•m lbf•in N•m lbf•in

Maximum (shock) acceleration G

20 | © Danfoss | March 2022 BC152886483413en-000910

R Size M P J G N F L H T W Y Z K

S90

Technical Information

Series 90 Axial Piston Pumps

Master Model Code

Series 90 Master Model Code Breakdown

S90 Rotation and Size Options

R – Rotation

Code Description 055 075 100 130 180 250

R Right hand [CW] X X X X X X L Left hand [CCW] X X X X X X

Size

055 55 cc [3.36 in3] max displacement per revolution X 075 75 cc [4.58 in3] max displacement per revolution X 100 100 cc [6.10 in3] max displacement per revolution X 130 130 cc [7.93 in3] max displacement per revolution X 180 180 cc [10.98 in3] max displacement per revolution X 250 250 cc [15.26 in3] max displacement per revolution X

Danfoss | March 2022 BC152886483413en-000910 | 21

Technical Information

Series 90 Axial Piston Pumps

Master Model Code

S90 Control Options

M – Controls

Code Description 055 075 100 130 180 250

CA Cover plate without feedback link, no control X X X X X X DC 3 position F-N-R solenoid control (12V, DC) DIN

connector

DD 3 position F-N-R solenoid control (24V, DC) DIN

connector HF HDC 2, std. porting, 3, 0-11 bar [44-160 psi] X X X X X X KA EDC, MS connector, std. porting, dual coil (14-85 mA) X X X X X X KN EDC, MS connector, std. porting, 643 Ohm single coil

(4-20 mA) KT EDC DEUTSCH connector, std. porting, dual coil (14-85

mA) KP EDC, Weatherpack connector, std. porting, dual coil

(14-85 mA) MA MDC X X X X X X MB MDC with neutral start switch X X X X X X FA NFPE control with 12V Amp connector; proportional

solenoid with pressure reducing valve (25 bar) FB NFPE control with 24V Amp connector; proportional

solenoid with pressure reducing valve (25 bar) FC NFPE control with 12V Amp connector; proportional

solenoid with pressure reducing valve (32 bar) FD NFPE control with 24V Amp connector; proportional

solenoid with pressure reducing valve (32 bar) FG NFPE control with 12V Amp connector; proportional

solenoid with pressure reducing valve (32 bar) fast

response FH NFPE control with 24V Amp connector; proportional

solenoid with pressure reducing valve (32 bar) fast

response FK NFPE control with 12V AMP connector; proportional

solenoid with pressure reducing valve (25 bar) FL NFPE control with 24V AMP connector; proportional

solenoid with pressure reducing valve (25 bar) FM NFPE control with 12V Amp connector; proportional

solenoid with pressure reducing valve (32 bar) fast

response FN NFPE control with 24V Amp connector; proportional

solenoid with pressure reducing valve (32 bar)

X X X X X

X X X X X X

X X

X X X

X X

X X X X

22 | © Danfoss | March 2022 BC152886483413en-000910

Technical Information

Series 90 Axial Piston Pumps

Master Model Code

S90 Pressure, Aux Mounting, Ports, Filtration, Displacement Limitation

P – High pressure regulation

Code Description 055 075 100 130 180 250

1 Pressure limiter for port A and B (140-450 bar) X X X X X X 2 High pressure relief valves for port A and B (90-450

bar)

J – Auxiliary Mounting Pad

AB SAE-A with sealed cover, 9 teeth coupling X X X X X X BB SAE-B with sealed cover, 15 teeth coupling X X X X X X BC SAE-B with sealed cover, 13 teeth coupling X X X X X X CD SAE-C with sealed cover, 4 bolt adapter, 14 teeth

coupling DE SAE-D with sealed cover, 13 teeth coupling X X X EF SAE-E with sealed cover, 13 teeth coupling X X NN No auxiliary mounting pad X X X X X X

X X X X X X

G – Endcap ports

60 Side ports X X X 80 Twin ports X X X X X X

N – Filtration

D External charge pump X X X X X X L Pressure integral (long filter) X X X X P Pressure integral (short filter) X X X X R Remote pressure X X X X T Remote pressure with SAE 1 1/16 thread ports for

high flow S Suction filtration X X X X X X

X X

F – Displacement limitation

C No limiters (180 cc only) X M Limitation on both sides (180 cc only) X 3 No limiters X X X X X 4 Limitation on both sides X X X X X 7 No limiters, special servo cylinder side 1 with hard

spring (for pumps with NFPE control only)

X X X X X

Danfoss | March 2022 BC152886483413en-000910 | 23

Technical Information

Series 90 Axial Piston Pumps

Master Model Code

S90 Shaft and Charging System

L – Shaft Options

Code Description 055 075 100 130 180 250

C6 Splined shaft, 21 teeth, 16/32 pitch X X X C7 Splined shaft, 23 teeth, 16/32 pitch X X C8 Splined shaft, 27 teeth, 16/32 pitch X X X F1 Splined shaft, 13 teeth, 8/16 pitch X X X X S1 Splined shaft, 14 teeth, 12/24 pitch X X X G1 Splined shaft, 25 teeth, 20/40 pitch X X T1 Tapered shaft, 34.925 mm diameter X X T6 Tapered shaft, 38.1 mm diameter X X T8 Tapered shaft, 25.4 mm diameter T4 Tapered shaft, 44.45 mm diameter X

H – Charging System

B 11 cc/rev nominal flow X C 14 cc/rev nominal flow X X D 17 cc/rev X X X E 20 cc/rev X X F 26 cc/rev X X H 34 cc/rev X X J 47 cc/rev X X K 65 cc/rev X L External charge pump with internal charge pressure

relieve valve for units with auxiliary mounting pad

N External charge pump with internal charge pressure

relieve valve for units without auxiliary mounting pad

X X X X X X

X X X X X

24 | © Danfoss | March 2022 BC152886483413en-000910

Technical Information

Series 90 Axial Piston Pumps

Master Model Code

S90 Control Orifice Options

T – Control Orifice Options for MDC

Code Inlet P Drain TA Drain TB Servo A Servo B 055 075 100 130 180 250

00 None 1.6 03 0.81 1.6 05 1.37 1.6

C5 0.81 1.4 1.4 None None X X X X X X C6 1.37 1.4 1.4 None None X X X X X X

No orifice installed in control,orifice hole in control spool

T – Control Orifice Options for EDC

Code Inlet P Drain TA Drain TB Servo A Servo B 055 075 100 130 180 250

00 None 1.3 1.3 None None X X X X X X 03 0.81 1.3 1.3 None None X X X X X X 05 1.37 1.3 1.3 None None X X X X X X 33 0.81 None None None None X X X X X X

1.6

None None X X X X X X None None X X X X X X None None X X X X X X

T – Control Orifice Options for FNR

Code Inlet P Drain T Servo A Servo B 055 075 100 130 180 250

G1 None 1.2 None None X X X X X X G4 0.46 1.2 None None X X X X X X G8 0.66 1.2 None None X X X X X X GB 0.81 1.2 None None X X X X X X GD 1.57 1.2 None None X X X X X X

T – Control Orifice Options for HDC

Code Inlet P Drain TA Drain TB Servo A Servo B 055 075 100 130 180 250

00 None 1.3 1.3 None None X X X X X X 003 0.81 1.3 1.3 None None X X X X X X 005 1.37 1.3 1.3 None None X X X X X X

T – Control Orifice Options for NFPE

Code Inlet P Drain T Servo A Servo B 055 075 100 130 180 250

B1 None 1.5 None None X X X X X X B2 None None 1.2 1.2 X X X X X X B6 None None None None X

Danfoss | March 2022 BC152886483413en-000910 | 25

Technical Information

Series 90 Axial Piston Pumps

Master Model Code

S90 Special Hardware and Pressure Settings

W – Special Hardware Features

Code Description 055 075 100 130 180 250

EEG Speed ring, no sensor, CP30 + 4.3° valve plate X X X X EFC Speed sensing, Turck connector (KPP x 156), CP15 +

EFI Speed sensing Turck connector (KPP x 156) CP30 +

FAC Nest T-bar springs CP15 + 1.5° valve plate X X X X X FAD Nested T-bar springs CP15 + 0.5° valve plate X X X X GBA CP15 + 0.5° valve plate X X X X GCA CP15 + 1.5° valve plate X X X X X GLA CP30 + 4.3° valve plate, CP30 valve plug X X X X X X NNN

1.5° valve plate X X X X X X

4.3° valve plate

180cc: CP15 + 0.5° valve plate 250cc: CP15 + 1.5° valve plate, nested T-bar springs

Y – High Pressure Setting A

26 260 bar X X X X X X 32 320 bar X X X X X X 35 350 bar X X X X X X 38 380 bar X X X X X X 40 400 bar X X X X X X 42 420 bar X X X X X X

X X X

X X

Z – High Pressure Setting B

26 260 bar X X X X X X 32 320 bar X X X X X X 35 350 bar X X X X X X 38 380 bar X X X X X X 40 400 bar X X X X X X 42 420 bar X X X X X X

K – Charge Pressure Setting

20 20 bar X X X X X X 22 22 bar X X X X X X 24 24 bar X X X X X X 26 26 bar X X X X X X 28 28 bar X X X X X X 30 30 bar X X X X X X 32 32 bar X X X X X 34 34 bar X X X X X

26 | © Danfoss | March 2022 BC152886483413en-000910

1 2

Not connected

Voltage between terminals 1 and 2

DANFOSS mating parts kit Part No. K09129

Solenoid plug face for DIN 43650 connector

"0"

Voltage VDC

Displacement

100 %

-b

P102 023

P102021

Technical Information

Series 90 Axial Piston Pumps

Control Features

3-Position (FNR) Electric Control - DC, DD

The 3-Position (FNR) control uses an electric input signal to switch the pump to a full stroke position. To use the FNR control in a PLUS+1 Guide application, download HWD file 10106826 from www.Danfoss.com/PLUS+1.

Warning

Avoid designing a system which places the swashplate into full stroke when control operation is blocked by contamination.

Solenoid connector

Pump displacement vs. electrical signal

3-position electric control hydraulic schematic

Danfoss | March 2022 BC152886483413en-000910 | 27

Solenoid Data

Code Voltage Current Connector

DC 12 Vdc 340 mA DIN 46350 DD 24 Vdc 170 mA DIN 46350

P108 495E

Technical Information

Series 90 Axial Piston Pumps

Control Features

Response time

The time required for the pump to change from zero to full flow (acceleration), or full flow to zero (deceleration), is a function of the size of the orifice, the charge pressure, valve plates and other vehicle dynamics.

A range of orifice sizes are available for the Series 90 FNR Control to assist in matching the rate of swashplate response to the acceleration and deceleration requirements of the application. Testing should be carried out to determine the proper orifice selection for the desired response. For more information regarding response time for individual orifices, please contact your Danfoss representative.

Pump output flow direction vs. control signal

Input shaft rotation CW CCW Signal at solenoid A B A B Port A flow (M1) Out In In Out Port B flow (M2) In Out Out In Servo cylinder (side) M5 (2) M4 (1) M5 (2) M4 (1)

Warning

Avoid designing a system which puts the swashplate into full stroke when control operation is blocked by contamination.

Electric Displacement Control (EDC), Options KA, KP, KT

The electric displacement control uses an electrohydraulic Pressure Control Pilot (PCP) valve to control the pilot pressure. The PCP converts an electrical input signal to a hydraulic input signal to operate a 4way servo valve, which ports hydraulic pressure to either side of a double acting servo piston. The servo piston tilts the cradle swashplate, thus varying the pump's displacement from full displacement in one direction to full displacement in the opposite direction.

The control has a mechanical feedback mechanism which moves the servo valve in relation to the input signal and the angular position of the swashplate. The electrical displacement control is designed so the angular rotation of the swashplate (pump displacement) is proportional to the electrical input signal. Due to normal operating force changes, the swashplate tends to drift from the position preset by the machine operator. Drift, sensed by feedback linkage system connecting the swashplate to the control valve, will activate the valve and supply pressure to the servo piston, maintaining the swashplate in its preset position.

Features and Benefits

The electric displacement control is a high gain control: With only a small change of the input current,

•

the servo valve moves to a full open position thus porting maximum flow to the servo cylinder. Oil filled PCP case lengthens control life by preventing moisture ingression and dampening

•

component vibrations. All electrical displacement controls are equipped with dual coil PCPs. The user has the option of using

•

a single coil or both coils (in series or parallel).

28 | © Danfoss | March 2022 BC152886483413en-000910

M5 M4

X2 X1

P102 024E

Feedback fr om swashpla te

TM4 M5

P C P

P102 025

Technical Information

Series 90 Axial Piston Pumps

Control Features

•

Benefits

•

Electric displacement control schematic

Internal mechanical stops on the servo valve allow rapid changes in input signal voltages without damaging the control mechanism.

Precision parts provide repeatable accurate displacement settings. The swashplate is coupled to a feedback mechanism. The control valve drains the ends of the servo

piston when an electric input signal is not present.

Pump returns to neutral after prime mover shuts down Pump returns to neutral if external electrical input signal fails or if there is a loss of charge pressure

Cross-section

To use the EDC control in a PLUS+1 Guide application, download HWD file 10106626 from www.Danfoss.com/Plus1.

Danfoss | March 2022 BC152886483413en-000910 | 29

7 mA with 0.25 Vdc

43 mA with 1.55 Vdc

Clockwise

Counterclockwise

Start Current

Full Stroke Current

Start Current

Full Stroke Current

T F A H S

P M U

N O

I T A T

O R

L A C

I R T C E L E

S T N E

M E R

I U Q E R

A or C

B or D

A and C A

One of Dual Coils

Dual Coils in Parallel

Dual Coils in Series

Produces

Flow Out of

Pump Port

A or C

A and C

B or D

B and D

14 mA with 0.13 Vdc

85 mA with 0.75 Vdc

A B C D

+ phasing to terminals

B C DA

+ phasing to terminals

B C DA

+ phasing to terminals

A/B 14 mA

± 3 mA

A/B 85 mA

± 11 mA

C/D 14 mA

± 3 mA

C/D 85 mA

± 11 mA

P108 497E

with 1.7 Vdc

with 0.3 Vdc

with 0.23 Vdc

with 1.36 Vdc

A B

D C

Danfoss mating parts kit Part no. K01588 Ident No. 615062

B C D

Danfoss mating parts kit Part no. K03384 (female terminals)

Technical Information

Series 90 Axial Piston Pumps

Control Features

Electrical Characteristics

The EDC is designed to be controlled from a DC current source or voltage source. Pulse width modulation (PWM) is not required. If a PWM signal is used to carry frequency greater than 200 Hz, do not use a pulse current of more than 120% of that required for full output.

Control signal requirements

Recommended PWM signal is 200 Hz, avoid exceeding 440 Hz.

Warning

Maximum input current under any condition: 250 mA PWM frequency: 200 Hz Coil resistance at 24°C [75°F]: A-B coil 20 Ω C-D coil 16 Ω

MS connector (option KA) MS 3102C-14S-2P

Packard® Weather-Pack (option KP) 4-way shroud connector

30 | © Danfoss | March 2022 BC152886483413en-000910

"0"

Current mA

Displacement

100 %

a b

-b -a

100 %

P102 026E

4 pin Deutsch® Plug DT Series Connector

P108 815E

Danfoss mating parts kit Part no. K23511

(D) (C)

(A) (B)

Technical Information

Series 90 Axial Piston Pumps

Control Features

Pump displacement vs. control current

Deutsch DT Series connector (option KT)

Response time

The time required for the pump output flow to change from zero to full flow (acceleration) or full flow to zero (deceleration) is a function of the size of the orifice in the control flow passage, charge pressure, valve plate and other vehicle dynamics.

A range of orifice sizes is available for the Series 90 Electric Displacement Control to assist in matching the rate of swashplate response to the acceleration and deceleration requirements of the application. Testing should be carried out to determine the proper orifice selection for the desired response.

For more information regarding response times for individual orifices, contact your Danfoss representative.

Pump output flow direction vs. control current

EDC using a single coil or dual coils in parallel (A and C common, B and D common)

Input shaft rotation CW CCW Positive current to term A or C B or D A or C B or D Port A flow (M1) Out In In Out Port B flow (M2) In Out Out In Servo cylinder (side) M5 (2) M4 (1) M5 (2) M4 (1)

EDC using a dual coil in series (B and C common)

Input shaft rotation CW CCW Positive current to term A D A D Port A flow (M1) Out In In Out

Danfoss | March 2022 BC152886483413en-000910 | 31

Pump Phasing With EDC Manual Operator (MOR)

Pump

MOR

Rotation

Pump Flow

troP tuOnoitatoR

Towards Connector Towards Connector

B AWCC

P108 498E

P108 496E

EDC Second Stage

Manual Over Ride (MOR)

EDC Pilot Stage (PCP)

Technical Information

Series 90 Axial Piston Pumps

Control Features

EDC using a dual coil in series (B and C common) (continued)

Port B flow (M2) In Out Out In Servo cylinder (side) M5 (2) M4 (1) M5 (2) M4 (1)

Refer to Installation Drawings for port locations. For further information on EDC controls, refer to Electrical Displacement Control For Series 90 Pumps,

AN152886482128.

Manual Over Ride (MOR)

EDC controls are available with a Manual Over Ride (MOR) which is intended for temporary actuation of the control to aid in pump diagnostics.

Using the MOR to control the pump will not result in proportional control.

Refer to the control flow table in the size specific technical information manual for the relationship of solenoid to direction of flow.

Warning

The vehicle must always be in a safe condition (i.e. vehicle lifted off the ground) when using the MOR function. The MOR lever has a must be manually actuated to be engaged. Moving the plunger mechanically moves the pilot stage armature which allows the pump to go on stroke. The MOR should be engaged anticipating a full stroke response from the pump.

Warning

Unintended MOR operation will cause the pump to go into stroke.

32 | © Danfoss | March 2022 BC152886483413en-000910

M5 M4

Feedback from swashplat e

P102029

Technical Information

Series 90 Axial Piston Pumps

Control Features

Hydraulic Displacement Control (HDC), Option HF, HS

Warning

Avoid designing a system which puts swashplate into full stroke when control operation is blocked by contamination.

Operation

The hydraulic displacement control uses a hydraulic input signal to operate a 4-way servo valve, which ports hydraulic pressure to either side of a double acting servo piston. The servo piston tilts the cradle swashplate, thus varying the pump's displacement from full displacement in one direction to full displacement in the opposite direction.

The control has a mechanical feedback mechanism which moves the servo valve in relation to the input signal and the angular rotation of the swashplate. The hydraulic displacement control is designed so the angular position of the swashplate (pump displacement) is proportional to the hydraulic input signal pressure. Due to normal operating force changes, the swashplate tends to drift from the position preset by the machine operator. Drift, sensed by feedback linkage system connecting the swashplate to the control valve, activates the valve to supply pressure to the servo piston, maintaining the swashplate in its preset position.

Features and Benefits

The hydraulic displacement control is a high gain control: With only small change of the input signal,

•

the servo valve moves to a full open position porting maximum flow to the servo cylinder. Internal mechanical stops on the servo valve allow rapid changes in input signal pressure without

•

damaging the control mechanism. Precision parts provide repeatable, accurate displacement settings with a given input signal.

•

The swashplate is coupled to a feedback mechanism. The control valve drains the ends of the servo

•

piston when an input signal is not present.

Benefits:

Simple - low cost design.

•

Pump returns to neutral after prime mover shuts down.

•

Pump returns to neutral if there is a loss of input signal pressure or if there is a loss of charge pressure.

•

Hydraulic displacement control schematic

Danfoss | March 2022 BC152886483413en-000910 | 33

M4 P

P102 030

X1 X2

"0"

Signal pressure

Displacement

100 %

a b

-b -a

100 %

P102 031E

Technical Information

Series 90 Axial Piston Pumps

Control Features

Cross-section

Maximum allowable signal pressure is 60 bar [870 psi]. Exceeding allowable signal pressure will cause damage to the control.

Response time

A range of orifice sizes are available for the Series 90 hydraulic displacement control to assist in matching the rate of swashplate response to the acceleration and deceleration requirements of the application. Testing should be carried out to determine the proper orifice selection for the desired response.

For more information regarding response time for individual orifices, please contact your Danfoss representative.

Pump displacement vs. signal pressure

Warning

Hydraulic signal pressure range*

HF HS

a b

Pump output flow direction vs. control pressure

3 ± 0.5 bar 6 ± 0.5 bar 11 ± 0.5 bar 18 ± 0.5 bar

Pump output flow direction vs. control pressure

Input shaft rotation CW CCW

Control pressure to port X1 X2 X1 X2 Port A flow (M1) Out In In Out

34 | © Danfoss | March 2022 BC152886483413en-000910

T P

Feedback from

swashplate

A – 0 – B

Switch

Neutral

Start

P102 035E

Technical Information

Series 90 Axial Piston Pumps

Control Features

Pump output flow direction vs. control pressure (continued)

Input shaft rotation CW CCW

Port B flow (M2) In Out Out In Servo cylinder (side) M5 (2) M4 (1) M5 (2) M4 (1)

Refer to Installation Drawings, for port locations.

Manual Displacement Control (MDC), Options MA, MB

Warning

Avoid designing a system which puts swashplate into full stroke when control operation is blocked by contamination.

The manual displacement control converts a mechanical input signal to a hydraulic signal that tilts the cradle swashplate through an angular rotation varying the pump's displacement from full displacement in one direction to full displacement in the opposite direction.

The manual displacement control has a mechanical feedback mechanism which moves a servo valve in the proper relationship to the input signal and the angular position of the swashplate. The control is designed so that the angular rotation of the swashplate is proportional to the mechanical input signal. The control is designed with an internal override mechanism which allows the mechanical input to be moved at a faster rate than the movement of the swashplate without damage to the control.

Features and benefits

Precision parts provide repeatable, accurate displacement settings with a given input signal.

•

The manual displacement control is a high gain control: With only small movement of the control

•

handle (input signal), the servo valve moves to full open position porting maximum flow to the servo cylinder. This is a high response system with low input force.

The integral override mechanism allows rapid changes in input signal without damaging the control

•

mechanism. Precision parts provide repeatable, accurate displacement settings with a given input signal.

•

The double-acting servo piston is coupled to a spring centering mechanism. The servo control valve is

•

spring centered such that with no input signal the servo valve is open centered and thus no fluid is ported to the servo cylinder.

Benefits:

- Pump returns to neutral after prime mover shuts down.

•

- Pump returns to neutral if external control linkage fails at the control handle or if there is a loss of

•

charge pressure.

Manual displacement control schematic

Danfoss | March 2022 BC152886483413en-000910 | 35

M5 P

Control handle input signal

P102 033E

Lever rotation

Displacement

100 %

-a

100 %

-b

P102 034E

-35 max.

35 max.

Technical Information

Series 90 Axial Piston Pumps

Control Features

Cross-section

External control handle requirements

•

Pump displacement vs. control lever rotation

Torque required to move handle to maximum displacement is 0.68 to 0.9 N•m [6 to 8 lbf•in]. Torque required to hold handle at given displacement is 0.34 to 0.57 N•m [3 to 5 lbf•in]. Torque required to overcome the override mechanism is 1.1 to 2.3 N•m [10 to 20 lbf•in] with the

maximum torque required for full forward to full reverse movement. Maximum allowable input torque is 17 N•m [150 lbf•in].

Control lever rotation range

a 0,5° - 4.5° b 24° - 30°

Volumetric efficiencies of the system will have impacts on the start- and end input- commands.

Response Time

The time required for the pump output flow to change from zero to full flow (acceleration) or full flow to zero (deceleration) is a function of the size of the orifice and charge pressure in the control, charge pressure, valve plates and other vehicle dynamics.

A range of orifice sizes is available for the Series 90 manual displacement control to assist in matching the rate of swashplate response to the acceleration and deceleration requirements of the application. Testing should be carried out to determine the proper orifice selection for the desired response. For more information regarding response time for individual orifices, please contact your Danfoss representative.

36 | © Danfoss | March 2022 BC152886483413en-000910

"B"

"A"

30°

minimum

30°

minimum

Neutral position

Maximum

displacement

Maximum

displacement

P108 550E

Technical Information

Series 90 Axial Piston Pumps

Control Features

Pump output flow direction vs. control handle rotation

MDC handle rotation parameters

Pump output flow direction vs. control handle rotation

Input shaft rotation CW CCW Handle rotation A B A B Port A flow (M1) Out In In Out Port B flow (M2) In Out Out In Servo cylinder (side) M5 (2) M4 (1) M5 (2) M4 (1)

Refer toInstallation Drawings for handle connection requirements

Neutral start switch (NSS) for MDC

The neutral start switch is an optional feature available with the MDC. When connected properly with the vehicle’s electrical system, the neutral start switch ensures that the prime mover can start only when the control is in neutral position.

Non Feedback Proportional Electric Control (NFPE)

The Non Feedback Proportional Electric (NFPE) control is an electrical automotive control in which an electrical input signal activates one of two proportional solenoids that port charge pressure to either side of the pump servo cylinder. The NFPE control has no mechanical feedback mechanism.

The pump displacement is proportional to the solenoid signal current, but it also depends upon pump input speed and system pressure. This characteristic also provides a power limiting function by reducing the pump swashplate angle as system pressure increases.

Control response

Series 90 controls are available with optional control passage orifices to assist in matching the rate of swashplate response to the application requirements (e.g. in the event of electrical failure). Software ramp or rate limiting should be used to control vehicle response in normal operation. The time required for the pump output flow to change from zero to full flow (acceleration) or full flow to zero (deceleration) is a net function of spool porting, orifices, charge pressure, valve plates and other vehicle dynamics. A swashplate response table is available for each frame indicating available swashplate response times. Testing a prototype system to verify the software and orifice selection provide the desired response.

Series 90 pumps have many orificing combinations, however, software is the best means of controling the swashplate response in normal operating conditions. Mechanical servo orifices should be used only for fail-safe return to neutral in the event of an electrical failure.

Danfoss | March 2022 BC152886483413en-000910 | 37

"0"

Signal Current

mA(DC)

a b c

Displacement

100 %

NFPE control

∆p = 300 bar

∆p = 0 bar

P003 187E

P003 174

Technical Information

Series 90 Axial Piston Pumps

Control Features

Pump Displacement vs. Input Signal

NFPE Schematic

NFPE control used with a Danfoss microcontroller

Creep mode

•

Two automotive control ramps via mode switch

•

Engine overspeed protection

•

Electric control

•

Anti-stall function

•

Smooth operation

•

Electronic ramp control is superior to hydraulic control with orifices

•

Input signal requirements

The NFPE control requires a pulse-width-modulated (PWM) input current to optimize performance. The

38 | © Danfoss | March 2022 BC152886483413en-000910

recommended PWM frequency is 100 Hz. The minimum PWM frequency is 80 Hz.

P108 500E

Amp Junior Power Timer

2 Pin Connector

(Male Terminal)

Mating Connector:

Danfoss

Identification Number

10102040

Technical Information

Series 90 Axial Piston Pumps

Control Features

Solenoid data

Option FA FB FC FD FK FL FM FN FG FH

Frame Size 55cc, 100cc 75cc 75cc, 100cc, 130cc,

180cc Voltage [V] 12 24 12 24 12 24 12 24 12 24 32Working Pressure [Bar] 25 25 32 32 25 25 25 32 32 32 Maximum Current [mA] 1500 750 1500 750 1500 750 1500 750 1500 750 Start Current [mA] 440 220 440 220 440 220 440 220 440 220 End Current [mA] 1290 645 1280 645 1290 645 1290 645 1290 645 Coil Resistance [Ohm] 4.72±5% 20.8±5% 5.3±5% 21.2±5% 4.72±5% 4.72±5% 4.72±5% 4.72±5% 4.98±3% 20.6±3% PWM Range [Hz] 70-200 70-200 70-200 PWM Prefered [Hz] 200 200 200 Protection Class up to IP6K6/IPX7/IPX9K up to IP6K6/IPX7/IPX9K IP65 DIN 40050 Connector Amp Junior Timer AMP Junior Timer Amp Junior Timer

* PWM Signal Required for Optimum Control Performance. To use the NFPE control in a PLUS+1 application, download the appropriate file from www.Danfoss.com/

PLUS+1.

NFPE pump displacement vs. input signal

Shaft rotation CW CCW

Active solenoid 1 and A 2 and B 1 and A 2 and B

Port A flow Out In In Out Port B flow In Out Out In Servo cylinder M5 M4 M5 M4

The NFPE control uses an AMP® Junior Power Timer connector. The solenoids are compatible with Danfoss microcontrollers and joysticks.

Danfoss | March 2022 BC152886483413en-000910 | 39

Charge pressure relief valve

Multifunction valve

To control

Servo piston

Port A

Port B

Bypass hex adjustment

P102 007E

Servo pressure relief valves

Technical Information

Series 90 Axial Piston Pumps

Features and Options

Multi-Function Valves

Overpressure protection

The Series 90 pumps are designed with a sequenced pressure limiting system and high pressure relief valves. When the preset pressure is reached, the pressure limiter system acts to rapidly de-stroke the pump to limit the system pressure. For unusually rapid load application, the high pressure relief valve is also available to limit the pressure level. The pressure limiter sensing valve acts as the pilot for the relief valve spool, such that the relief valve is sequenced to operate above the pressure limiter level.

Both the pressure limiter sensing valves and relief valves are built into the multi-function valves located in the pump endcap. The sequenced pressure limiter/high pressure relief valve system in the Series 90 provides an advanced design of overpressure protection.

The pressure limiter avoids system overheating associated with relief valves and the sequenced relief valves are available to limit pressure spikes which exist in severe operating conditions.

Because the relief valves open only during extremely fast pressure spike conditions, heat generation is minimized during the short time that they might be open. For some applications, such as dual path vehicles, the pressure limiter function may be defeated such that only the relief valve function remains. The relief response is approximately 20 ms whether used with or without the pressure limiter function.

Pressure limiting function

When set pressure is exceeded, the pressure sensing valve (A) flows oil through passage (B) and across an orifice in the control spool raising pressure on the servo which was at low pressure. Servo pressure relief valves (C) limit servo pressure to appropriate levels. The pressure limiter action cancels the input command of the displacement control and tends to equalize servo pressure. Swashplate moments assist to change the displacement as required to maintain system pressure at the set point. The HPRV is always set 30 bar above the pressure limiter setting.

HPRVs are factory set at a low flow condition. Any application or operating condition which leads to elevated HPRV flow will cause a pressure rise with flow above a valve setting. Consult factory for application review. Excessive operation of the HPRV will generate heat in the closed loop and may cause damage to the internal components of the pump.

Multifunction valve, pressure limiter, pressure regulation, option 1

40 | © Danfoss | March 2022 BC152886483413en-000910

Technical Information

Series 90 Axial Piston Pumps

Features and Options

Bypass Function

In some applications it is desirable to bypass fluid around the variable displacement pump when pump shaft rotation is either not possible or not desired. For example, an inoperable vehicle may be moved to a service or repair location or winched onto a trailer without operating the prime mover. To provide for this, Series 90 pumps are designed with a bypass function.

The bypass is operated by mechanically rotating the bypass hex on both multifunction valves three (3) turns counterclockwise (CCW). This connects working loop A and B and allows fluid to circulate without rotating the pump and prime mover.

Excessive speeds and extended load/vehicle movement must be avoided while moving in bypass function. The load or vehicle should be moved not more than 20 % of maximum speed and for a duration not exceeding 3 minutes. Damage to drive motor(s) is possible. When the bypass function is no longer needed care should be taken to re-seat the HPRV hex plugs to the normal operating position.

Possible pump and/or motor damage. Bypass valves are intended for moving a machine or vehicle for very short distances at very slow speeds.

They are NOT intended as tow valves.

Warning

Auxiliary Mounting Pads

Auxiliary mounting pad specifications

Mounting pad Option code Spline coupling Frame size/Maximum torque N•m [lbf•ft]

055 075 100 130 180 250

SAE A AB 9T 16/32 93 [69] 97 [72] 97 [72] 106 [78] 120 [89] 120 [89] SAE B BC 13T 16/32 204 [150] 211 [156] 211 [156] 334 [246] 324 [239] 324 [239] SAE B-B BB 15T 16/32 342 [252] 281 [207] 281 [207] 368 [271] 368 [271] 368 [271] SAE C CD 14T 12/24 408 [301] 447 [330] 447 [330] 741 [546] 628 [463] 624 [460] SAE D DE 13T 8/16 n/a n/a n/a 741 [546] 1070 [789] 1070 [789] SAE E EF 13T 8/16 n/a n/a n/a n/a 1070 [789] 1070 [789] SAE E EG 27T 16/32 n/a n/a n/a n/a 1220 [900] 1220 [900]

Mating pump requirements

The accompanying drawing provides the dimensions for the auxiliary pump mounting flange and shaft. Pump mounting flanges and shafts with the dimensions noted below are compatible with the auxiliary

mounting pads on the Series 90 pumps. An O-ring is required when a pump is bolted to an aux pad. Refer to outline drawings for more details and O-ring dimensions.

The auxiliary flange cover seal is only used for product transportation. If there is no tandem pumps requirement, it is recommended to use pump without auxiliary flange option. If you need to use pump with auxiliary flange but not rear pump for a long time, Please contact Danfoss technical personnel.

Danfoss | March 2022 BC152886483413en-000910 | 41

Ø P

-0.05

[+0.000]

[-0.002]

min.

Minimum spline engagement

max.

Mounting flange (Ref)

Coupling

0.8 [0.03] R

preferred

P102 015E

Technical Information

Series 90 Axial Piston Pumps

Features and Options

Auxiliary pump mounting flange and shaft

Auxiliary pump dimensions

Flange size Units P diameter B maximum D F minimum

SAE A mm [in] 82.55

SAE B 101.6

SAE B-B 101.6

SAE C 127.0

SAE D 152.4

SAE E 13 teeth

SAE E 27 teeth

[3.25]

[4.00]

[5.00]

[6.00]

165.1 [6.50]

7.4 [0.29]

10.7 [0.42]

14.3 [0.56]

18.0 [0.71]

32 [1.26]

41 [1.61]

46 [1.81]

56 [2.20]

75 [2.95]

13.5 [0.53]

14.2 [0.56]

16.1 [0.63]

18.3 [0.72]

20.8 [0.82]

27.0 [1.06]

Displacement Limiter

All Series 90 pumps are designed with optional mechanical displacement (stroke) limiters. The maximum displacement of the pump can be set independently for forward and reverse using the

two adjustment screws.

Warning

Adjusting the displacement limiter with the machine running may result in leakage. If backed out too far, the adjustment screw will come completely out of its threaded bore.

42 | © Danfoss | March 2022 BC152886483413en-000910

Displacement limiter location

Pump rotation Displacement limiter mounted on

Right [CW] 1 A

Left [CCW] 1 B

servo side

2 B

2 A

Displacement limitation at high pressure side

P108 705E

Side 2

Technical Information

Series 90 Axial Piston Pumps

Features and Options

Displacement limiter

Shaft Torque

Frame size Lock nut wrench size and torque Adjusting screw

wrench size internal hex

055 13 mm 24 N•m [18 lbf•ft] 4 mm 4.2 cm³/rev [0.26 in³/rev] 075 13 mm 24 N•m [18 lbf•ft] 4 mm 5.1 cm³/rev [0.31 in³/rev] 100 13 mm 24 N•m [18 lbf•ft] 4 mm 6.2 cm³/rev [0.38 in³/rev] 130 17 mm 48 N•m [35 lbf•ft] 5 mm 8.8 cm³/rev [0.53 in³/rev] 180 19 mm 125 N•m [92 lbf•ft] 6 mm 12.5 cm³/rev [0.76 in³/rev] 250 19 mm 125 N•m [92 lbf•ft] 6 mm 17.3 cm³/rev [1.06 in³/rev]

Approximate displacement change per revolution of adjusting screw

Shaft torque and spline lubrication

The rated torque is a measure of tooth wear and is the torque level at which a normal spline life of 2x109 shaft revolutions can be expected. The rated torque presumes a regularly maintained minimum level of lubrication via a moly-disulfide grease in order to reduce the coefficient of friction and to restrict the presence of oxygen at the spline interface. It is also assumed that the mating spline has a minimum hardness of Rc 55 and full spline depth. The rated torque is proportional to the minimum active spline length.

Maximum torque ratings are based on torsional fatigue strength considering 100.000 full load reversing cycles. However, a spline running in oil-flooded environment provides superior oxygen restriction in addition to contaminant flushing. The rated torque of a flooded spline can increase to that of the maximum published rating. A flooded spline would be indicative of a pump driven by a pump drive or plugged into an auxiliary pad of a pump.

Maintaining a spline engagement at least equal to the Pitch Diameter will also maximize spline life. Spline engagements of less than ¾ Pitch Diameter are subject to high contact stress and spline fretting.

Shaft torque for tapered shafts

The rated torque is based on the contact pressure between the shaft and hub surfaces with poor surface contact areas. With an increased quality of the contact areas, the contact pressure between the shaft and hub is increased and allows higher torque to be transmitted.

When a key is used for orientation of the hub on the shaft in conjunction with poor quality contact surfaces, the transmitted torque will drop significantly. This is due to the key carrying the torque, which limits the shaft torque carrying capability.

Maximum torque rating is based on an ideal contact area of 100 % and the retaining nut properly torqued. This allows for the highest contact pressure between the shaft and the hub.

Danfoss | March 2022 BC152886483413en-000910 | 43

First stageSecond stageThird

stage

for the first pumpM

second pump

for the M

next pumpfor the M

Input torqueM

P102 014E

Technical Information

Series 90 Axial Piston Pumps

Features and Options

Shaft Availability and Torque Ratings

Alignment between the mating spline's pitch diameters is another critical feature in determining the operating life of a splined drive connection. Plug-in, or rigid spline drive installations can impose severe radial loads on the shafts. The radial load is a function of the transmitted torque and shaft eccentricity. Increased spline clearance will not totally alleviate this condition; but, increased spline clearance will prevent mechanical interference due to misalignment or radial eccentricity between the pitch diameters of the mating splines. Spline life can be maximized if an intermediate coupling is introduced between the bearing supported splined shafts.

For multiple pump installations, consider load of the entire pump stack. All torques are additive. Include charge pumps loads when calculating torques.

Through torque diagram

Refer to the outline drawings for shaft dimensions.

Torque required by auxiliary pumps is additive. Ensure requirements don't exceed shaft torque ratings.

Shaft availability and maximum input torque - splined shafts

Option code Customer end Frame size/Maximum torque N•m [lbf•ft]

055 075 100 130 180 250

C6 21T 16/32 1287 [949] 1214 [895] 1214 [895] n/a n/a n/a C7 23T 16/32 n/a 1625 [1218] 1822 [1344] n/a n/a n/a C8 27T 16/32 n/a n/a n/a 2693 [1986] 3125 [2304] 3464 [2554] G1 25T 20/40 n/a 1379 [1017] 1390 [1025] n/a n/a n/a F1 13T 8/16 n/a n/a 2303 [1700] 2303 [1700] 2303 [1700] 2682 [1978] S1 14T 12/24 832 [613] 853 [629] 974 [718] n/a n/a n/a

Shaft availability and maximum input torque - tapered shafts

Option code

T8 Taper 1” - lock nut* 190 [140] 357 [263] Must be determined by

T1 Taper 1.375” - crowned nut** 210 [155] 704 [519] Must be determined by

Customer end Maximum nut torque Maximum Torque

transmitted through

SD supplied

nut

customer supplied nut

joint

customer

Frame size/Maximum shaft torque N•m [lbf•ft]

055 075 100 130 180 250

n/a n/a n/a n/a n/a n/a

1209

[892]

n/a n/a n/a n/a

[892]

44 | © Danfoss | March 2022 BC152886483413en-000910

Technical Information

Series 90 Axial Piston Pumps

Features and Options

Shaft availability and maximum input torque - tapered shafts (continued)

Option code

Customer end Maximum nut torque Maximum Torque

SD supplied

nut

customer supplied nut

transmitted through joint

Frame size/Maximum shaft torque N•m [lbf•ft]

055 075 100 130 180 250

T6 Taper 1.5” - lock nut* 525 [390] 882 [650] Must be determined by

customer

T4 Taper 1.75” - crowned nut** 400 [295] 1391 [1026] Must be determined by

customer

* without key ** with woodruff key

Warning

Exceeding the maximum torque value for SD supplied nut may result in nut failure.

Warning

Customer may supply a stronger nut. Exceeding the maximum torque value for customer supplied nut

may result in shaft failure.

Tapered Shaft Customer Acknowledgement

Warning

The customer is responsible for proper analysis, design, and quality of the mating female coupling, key, and applied torque on the nut. Torque must be transmitted by the taper fit between the shaft and mating coupling, not the key. Failure to properly analyze the nut torque required to create a robust joint could result in transmitting torque through the key which may lead to premature shaft failure.

n/a 1755

n/a n/a n/a 2488

[1294]

1755 [1294]

n/a n/a n/a

[1835]

n/a n/a

The specified torque rating of the tapered shaft is based on the cross-sectional diameter of the shaft through the keyway and assumes proper clamp and fit between shaft and coupling. Danfoss guarantees the design and manufactured quality of the tapered shaft.

Danfoss has made provisions for the key in accordance to the ISO specification with the understanding that the key is solely to assist in the installation of the mating coupling.

Charge Pump

Many factors influence the charge flow requirements. These factors include system pressure, pump speed, pump swashplate angle, type of fluid, temperature, size of heat exchanger, length and size of hydraulic lines, control response characteristics, auxiliary flow requirements, hydrostatic motor type, etc.

Charge pump sizing/selection

Danfoss | March 2022 BC152886483413en-000910 | 45

Technical Information

Series 90 Axial Piston Pumps

Features and Options

more detailed review of charge flow requirements. Refer to Selection of Drive line Components BC157786484430, for a detailed procedure.

System features and conditions which may invalidate the 10% guideline include (but are not limited to):

•

Contact your Danfoss representative for application assistance if your application includes any of these conditions.

Available charge pump sizes and speed limits

Code Charge pump size

B 11 [0.69] 4200 C 14 [0.86] 4200 D 17 [1.03] 3900 E 20 [1.20] 3600 F 26 [1.60] (only for 130cc) 3300 H 34 [2.07] 3100 J 47 [2.82] (only for 180cc) 2600 K 65 [3.90] 2300

Continuous operation at low input speeds (< 1500 min-1 (rpm)) High shock loading Excessively long system lines (> 3m [9.8 ft]) Auxiliary flow requirements Use of low speed high torque motors High flushing flow

Rated speed

cm³ [in³]

min-1 (rpm)

Charge pump flow and power curves

Charge pressure: 20 bar [350 psi] Case drain: 80 °C (8.2 cSt) 180 °F (53 SUS) Reservoir temperature: 70 °C (11 cSt) 160 °F (63 SUS)

46 | © Danfoss | March 2022 BC152886483413en-000910

500 1000 2000 3000 4000 4500

Speed min¯¹ (rpm)

US gal/min

l/min

17 cm • 1.03 in /Rev

14 cm • 0.86 in /Rev

34 cm • 2.07 in /Rev

26 cm • 1.60 in /Rev

20 cm • 1.2 in /Rev

47 cm • 2.9 in /Rev

65 cm • 3.9 in /Rev

P102 012E

500 1000 2000 3000

4000

4500

34 cm •

2.07 in /rev

26 cm

•

1.60 in /rev

20 cm

•

1.2 in /rev

17 cm

•

1.03 in /rev

14 cm

•

0.86 in /rev

11 cm

•

0.69 in /rev

Speed min (rpm)

-1

47 cm

•

2.9 in /rev

65 cm

•

3.9 in /rev

P102 013E

Technical Information

Series 90 Axial Piston Pumps

Features and Options

Charge pump output flow

Charge pump power requirements

Speed Sensor

Danfoss | March 2022 BC152886483413en-000910 | 47

An optional speed sensor for direct measurement of speed is available. A special magnetic ring is pressed onto the outside diameter of the cylinder block and a Hall effect sensor

is located in the housing. The sensor accepts supply voltage and outputs a digital pulse signal in response to the speed of the ring. The output changes its high/low state as the north and south poles of the permanently magnetized speed ring pass by the face of the sensor. The digital signal is generated at frequencies suitable for microprocessor based controls. The sensor is available with different connectors.

To use the speed sensor in a PLUS+1 Guide application, download HWD file 10106825 from www.Danfoss.com/Plus1. To identify the sensors that are PLUS+1 compliant, please contact your Danfoss representative.

Technical Information

Series 90 Axial Piston Pumps

Features and Options

Electrical data

Description Data

Supply voltage (two ranges) 4.5 to 8.5 Vdc Regulated 7 to 32 Vdc Battery Maximum operating current 20 mA at 1 Hz and 5 Vdc supply Required current 12 mA at 5 Vdc (no load) Output voltage High state Supply voltage minus 0.5 Vdc

Maximum frequency 15 kHz Load Ground 15 kHz

Peak transient voltage 4.5 to 8.5 Vdc 80 Vdc for 2 milliseconds

Peak reverse voltage 4.5 to 8.5 Vdc -15 Vdc continuous

minimum (no load)

Low state 0.5 Vdc, maximum (no load)

Supply 15 kHz

7 to 32 Vdc 300 Vdc for 2 milliseconds

200 Vdc for 100 milliseconds

7 to 32 Vdc -32 Vdc continuous

Environmental data

Description Data

Operating and storage temperature -40° to 110° C [-40° to 230° F]

For more information on the speed sensor, refer to KPP Pulse Pickup (PPU) Technical Information

11029257.

Warning

Do not energize the 4.5 to 8.5 Vdc sensor with 12 Vdc battery voltage. Use a regulated power supply. If you need to energize the sensor with battery voltage, contact your Danfoss representative for a special sensor.

Pulse frequency

055 075 100 130 180 250

Pulse per revolution 52 58 63 69 77 85

48 | © Danfoss | March 2022 BC152886483413en-000910

Ground

3 pin Deutsch Plug DT Series connector

3523

Power +

Speed

3 or 4 pin Delphi Connector

Power +

Speed

Ground

Direction

3524A

4 pin Deutsch® Plug DT Series Connector

Power +

Ground

Speed

Direction

3525

3526

4 pin Turck Eurofast connector

Keyway ref

Power +

Ground

12.7 [0.50] Flats

Speed

Direction

Packard Weather-Pack

4 pin

(Supplied Connector)

Mating Connector

No.: K03379

Turck Eurofast Connector

4 pin

(Supplied Connector)

Mating Connector

straight right angle

No.: K14956 No.: K14957

Technical Information

Series 90 Axial Piston Pumps

Features and Options

Connector Pin Assignments

Danfoss | March 2022 BC152886483413en-000910 | 49

Ø 6.73±0.13

[Ø 0.265±0.005]

R 25.4±0.3

[R 1.0±0.01]

R 50.8±0.3

[R 2.0±0.01]

28°

minimum

28°

minimum

Neutral position

Torque applied to control handle shaft not to exceed 17 N•m [150 lbf•in]

Maximum

displacement

Maximum

displacement

Manual Displacement Control Handle

Dimensions

Gauge port M3 charge pressure 9/16-18UNF-2B

Multifunction valve

Charge pressure relief valve

View "X"

Multifunction valve

82.6

[3.25]

Port S: Charge pump inlet 1-5/16-12UN-2B

58.4

[2.30]

17.8

[0.70]

120.4 [4.74] port L2

152.4 [6.00]

121.9 [4.80]

port B

133.9 [5.27]

Gauge port M1 system pressure A 9/16-18UNF-2B

Approximate center of gravity

Gauge port M2 system pressure B 9/16-18UNF-2B

9.4 [0.37]

"X"

"Z"

"Y"

117.6 [4.63]

port L1

288.8

[11.37]

90.4 [3.56]

port A

243.7 [9.60] Port S

14.2 [0.56]

View "Z"

43.7

[1.72]

57.25

[2.254]

114.5 [4.50]

86.2 [3.39]

Port L2

88.9 [3.50]

149.9

[5.90]

Approximate

center of gravity

Port L2 case drain 1-1/16-12UN-2B

93.7

[3.69]

111.1

[4.37]

Ø14.27

[Ø 0.562]

"W"

Rotation

CCW

(4x)

(2x)

231.9 [9.13]

Port L1 case drain use highest port as outlet 1-1/16-12UN-2B

72.9

[2.87]

168.9 [6.65]

Gauge port M5 Servo pressure 7/16-20UNF-2B

27.76

[1.093]

57.15 [2.25]

Gauge port M4 servo pressure 7/16-20UNF-2B

View "Y"

Ports A and B

1.00 - 6000 psi split flange boss per SAE J518 (Code 62) 7/16-14UNC-2B except 21 [0.83] minimum full thread

Control MDC, option MA

P102 042

External charge plug 1 5/16-12 UNF

Ø127

Ø[5]

-0.05

[+0.000

[-0.002]

12.45

[0.49]

±0.25

±[0.01]

Technical Information

Series 90 Axial Piston Pumps

Installation Drawings

Frame Size 055

Manual displacement control (MDC), endcap side ports, option 60

50 | © Danfoss | March 2022 BC152886483413en-000910

View "Y"

85.1 [3.35]

port S

88.9

[3.54]

232.2 [9.14]

Gauge port M1: system pressure A 9/16-18UNF-2B

Gauge port M2 system pressure B 9/16-18UNF-2B

"Y"

57.9

[2.28]

57.9

[2.28]

247.1

[9.73]

57.15 [2.25]

Port S: charge pump inlet 1-5/16-12UN-2B

27.76

[1.093]

Ports A and B 1 – 6000 psi split flange boss per SAE J518 (Code 62) 7/16-14UNC-2B 21 [0.83] minimum full thread

Control MDC, option MA

P102 043

Technical Information

Series 90 Axial Piston Pumps

Installation Drawings

Manual displacement control (MDC) endcap twin ports, option 80

Danfoss | March 2022 BC152886483413en-000910 | 51

SAE B, option BC

4 threads 1/2-13UNC-2B

22.0[0.87] deep

View "X"

146

[5.75]

146

[5.75]

329

[12.95]

311.5

[12.26]

"X"

Coupling spline data: Pitch diameter = 20.6375 [0.8125] Pressure angle = 30° Number of teeth = 13 Pitch = 16/32 ANSI B92.1-1970, class 6, fillet root side fit Length of spline = 29.51 [1.16]

For O-ring Ø 94.92 x 2.62 [Ø 3.737 x 0.103]

17.66 [0.70]

Ø 101.65

[Ø 4.002]

+ 0.13

[+0.005]

[- 0.000]

331

[13.03]

314

[12.36]

"X"

Coupling spline data: Pitch diameter = 29.6333 [1.167] Pressure angle = 30° Number of teeth = 14 Pitch = 12/24 ANSI B92.1-1970, class 6, fillet root side fit Length of spline = 18.97 [0.747]

[+0.005]

[- 0.000]

For O-ring Ø 120.32 x 2.62 [Ø 4.737 x 0.103]

Ø 127.03

[Ø 5.00]

+ 0.13

30.73 [1.21]

SAE C, option CD

View "X"

6 threads 1/2-13UNC-2B 22 (0.87) deep

114.5

[4.51]

114.5 [4.51]

181

[7.13]

SAE A, option AB

330.4

[13.01]

316.6

[12.46]

For O-ring Ø 82.22 x 2.62 [Ø 3.237 x 0.103]

Coupling spline data: Pitch diameter = 14.288 [0.5625] Pressure angle = 30° Number of teeth = 9 Pitch = 16/32 ANSI B92.1-1970, class 6, fillet root side fit Length of spline = 37.13 [1.46]

"X"

Ø 82.6

[Ø 3.252]

+ 0.13

[+0.005]

[- 0.000]

15.13 [0.59]

106.375

[4.188]

106.375 [4.188]

View "X"

4 threads 3/8-16UNC-2B

22.8 [0.90] deep

P102 044

Technical Information

Series 90 Axial Piston Pumps

Installation Drawings

Auxiliary mounting pad – options AB, BC, CD, BB

52 | © Danfoss | March 2022 BC152886483413en-000910

SAE B-B, option BB

4 threads 1/2-13UNC-2B 22 [0.87] deep

View "X"

146

[5.75]

146

[5.75]

329

[12.95]

311.5

[12.26]

"X"

Coupling spline data: Pitch diameter = 23.8125 [0.9375] Pressure angle = 30° Number of teeth = 15 Pitch = 16/32 ANSI B92.1-1970, class 6, fillet root side fit Length of spline = 24.43 [0.96]

For O-ring Ø 94.92 x 2.62 [Ø 3.737 x 0.103]

Ø 101.65

[Ø 4.002]

+ 0.13

[+0.005]

[- 0.000]

20.75 [0.82]

P102 045

7.9

[0.311]

47.6

[1.875]

Coupling must not protude beyond this surface

Option S1 ISO 3019-1

Flange Outer Diameter 32mm -4mm (SAE C, 14 tooth)

24.9

[0.98]

27.9

[1.10]

31.14

[1.23]

29.633

[1.1667]

7.9

[0.311]

47.6

[1.875]

Coupling must not protude beyond this surface

Option C6 ISO 3019-1

Flange Outer Diameter 32mm -4mm (SAE C, 21 tooth)

28.7

[1.13]

31.2

[1.23]

34.42

[1.36]

33.338

[1.3125]

P108 502E

* Minimum active spline length

for the specified torque ratings

Shaft spline data: Pitch diameter = 29.6333 [1.167] Pressure angle = 30° Number of teeth = 14 Pitch = 12/24 ANSI B92.1 Fillet root side fit

Shaft spline data: Pitch diameter = 33.338 [1.3125] Pressure angle = 30° Number of teeth = 21 Pitch = 16/32 ANSI B92.1 Fillet root side fit

6.6

[0.26]

66.9

[2.63]

Cone flange must not protude beyond this point

Option T1 ISO 38.3

Diameter 34.9 mm Taper 1:8

47.8

[1.88]

62.02

[2.44]

Woodruff key [0.375 x 1.5]

Wrench size 38 mm

Shaft/cone 1:8 SAE standard J501

P108 503E

Refer to (torque - tapered shafts) table page 42 for torque information

Technical Information

Series 90 Axial Piston Pumps

Installation Drawings

Auxiliary mounting pad – options AB, BC, CD, BB

Shaft dimensions

Danfoss | March 2022 BC152886483413en-000910 | 53

248.2 [9.77]

Port L1 Case drain use highest port as outlet 1-1/16-12UN-2B

81.3

[3.20]

172.2 [6.78]

Gauge port M5 servo pressure 9/16-18UNF-2B

Gauge port M4 servo pressure 9/16-18UNF-2B

7.9 [0.31]

41.6

[1.64]

27.76

[1.093]

View "Y"

57.15 [2.25]

Ports A and B 1 – 6000 psi split flange boss per SAE J518 (Code 62) 7/16-14UNC-2B 20 [0.79] minimum full thread

3.8 [0.15]

14.2 [0.56]

141.7 [5.58] Port L2

155.7 [6.13]

124.2 [4.89]

port L1

139.7

[5.50]

Approximate center of gravity

Gauge port M2 System pressure B 9/16-18UNF-2B

9.4 [0.37]

"X"

"Z"

"Y"

12.45

[0.49]

7.9

[0.31]

±0.25 [±0.01]

129 [5.08]

port B

306,1

(12.05)

Gauge port M1 system pressure A 9/16-18UNF-2B

94.5 [3.72]

port A

262.6 [10.34] Port S

Ø 127

[Ø 5 ]

-0.05

-0.002

93.7

[3.69]

155.7

[6.13]

40.6

[1.60]

57.25

[2.254]

114.5 [4.50]

91.7 [3.61]

port L2

Approximate

center of gravity

Port L2 case drain 1-1/16-12UN-2B

View "Z"

99.3

[3.91]

110.7 [4.36]

"W"

Ø 14.27

[Ø 0.562]

Rotation

CCW

(4x)

(2x)

Gauge port M3 charge pressure 9/16-18UNF-2B

Multifunction valve

Charge pressure relief valve

View "X"

Multifunction valve

Port S: charge pump inlet 1-5/16-12UN-2B

84.0

[3.31]

[2.56]

Ø 6.73±0.13

[Ø 0.265±0.005]

R 25.4±0.3

[R 1.0±0.01]

R 50.8±0.3

[R 2.0±0.01]

28°

minimum

28°

minimum

Neutral position

Torque applied to control handle shaft not to exceed 17 N•m [150 lbf•in]

Maximum

displacement

Maximum

displacement

Manual displacement control handle

dimensions

Control MDC, option MA

M2M10M1

M4M4M5M5

+0.25

-0.18 [+0.010]

[-0.007]

41.67 [1.64]

12.70 [0.50]

Ø 6.33

[Ø 0.249]

4.78 [0.188]

External charge plug 1 5/16-12 UNF

Technical Information

Series 90 Axial Piston Pumps

Installation Drawings

Frame Size 075

Manual Displacement Control (MDC) Endcap Side Ports, Option 60

54 | © Danfoss | March 2022 BC152886483413en-000910

242.3

[9.54]

Gauge port M1: system pressure A 9/16-18UNF-2B

"Y"

[2.402]

248

[9.76]

57.15

[2.25]

27.76

[1.093]

Port S: charge pump inlet 1-5/16-12UN-2B

Gauge port M2 system pressure B 9/16-18UNF-2B

Ports A and B 1 - 6000 psi split flange boss per SAE J518 (Code 62) 7/16-14UNC-2B except 20.8 [0.82] minimum full thread

[3.90]

Control MDC, option MA

[3.62]

View "Y"

P102 047

Technical Information

Series 90 Axial Piston Pumps

Installation Drawings

Manual Displacement Control (MDC), endcap twin ports, option 80

Danfoss | March 2022 BC152886483413en-000910 | 55

M2M10M1

M4M5

M2M10M1

M4M5

M2M10M1

M4M5

SAE B, option BC

View "X"

146

[5.75]

4 threads 1/2-13UNC-2B 22 [0.87] deep

146

[5.75]

346.5

[13.64]

328.9

[12.95]

"X"

Coupling spline data: Pitch diameter = 20.6375 [0.8125] Pressure angle = 30° Number of teeth = 13 Pitch = 16/32 ANSI B92.1-1970, class 6, fillet root side fit Length of spline = 29.51 [1.16]

For O-ring Ø 94.92 x 2.62 [Ø 3.737 x 0.103]

17.66 [0.70]

Ø 101.65

[Ø 4.002]

+ 0.13

[+0.005]

[- 0.000]

348.4

[13.72]

331.4

[13.05]

For O-ring Ø 120.32 x 2.62 [Ø 4.737 x 0.103]

"X"

Coupling spline data: Pitch diameter = 29.6333 [1.167] Pressure angle = 30° Number of teeth = 14 Pitch = 12/24 ANSI B92.1-1970, class 6, fillet root side fit Length of spline = 18.97 [0.747]

Ø 127.03

[Ø 5.001]

+ 0.13

[+0.005]

[- 0.000]

30.73 [1.21]

SAE C, option CD

View "X"

6 threads 1/2-13UNC-2B 22 [0.87] deep

114.5 [4.51]

114.5

[4.51]

181

[7.13]

SAE A, option AB

View "X"

4 threads 3/8-16UNC-2B

22.8 [0.90] deep

106.375 [4.188]

106.375

[4.188]

347.8

[13.69]

333.93 [13.14]

For O-ring Ø 82.22 x 2.62 [Ø 3.237 x 0.103]

Coupling spline data: Pitch diameter = 14.288 [0.5625] Pressure angle = 30° Number of teeth = 9 Pitch = 16/32 ANSI B92.1-1970, class 6, fillet root side fit Length of spline = 37.13 [1.46]

"X"

Ø 82.6

[Ø 3.252]

+ 0.13

[+0.005]

[- 0.000]

15.13 [0.59]

P102 048

Technical Information

Series 90 Axial Piston Pumps

Installation Drawings

Auxiliary mounting pad – Options AB, BC, CD, BB

56 | © Danfoss | March 2022 BC152886483413en-000910

M10

M2M1

SAE B-B, option BB

View "X"

146

[5.75]

4 threads 1/2-13UNC-2B 22 [0.87] deep

146

[5.75]

346.5

[13.64]

328.9

[12.95]

For O-ring Ø 94.92 x 2.62 [Ø 3.737 x 0.103]

"X"

Coupling spline data: Pitch diameter = 23.8125 [0.9375] Pressure angle = 30° Number of teeth = 15 Pitch = 16/32 ANSI B92.1-1970, class 6, fillet root side fit Length of spline = 24.43 [0.96]

Ø 101. 65

[Ø 4.002]

+ 0.13

[+0.005]

[- 0.000]

22.75

[0.896]

M4M5

P102 049

[2.118]

306

[12.043]

[0.56]

[0.157]

124.2

[4.89]

94.5 [3.722]

156

[6.142]

Connector AMP Junior Typ A

Case drain L1 1-1/16-12UN-2B

System pressure B Gage port M2 9/16-18UNF-2B

System pressure A Gage port M1 9/16-18UNF-2B

Approx center of gravity

Charge pump inlet M10 9/16-18UNF-2B

"E"

"B"

"A"

"C"

Ø14.3

[0.565]

57.25

[2.254]

[3.755]

[2.543]

91.7 [3.611]

+0.25

-0.13 [+0.10] [-0.005]

57.25

[2.254]

Case drain L2 1-1/16-12UN-2B

"D"

View "B"

P104 324E

to case drain L1

Technical Information

Series 90 Axial Piston Pumps

Installation Drawings

Auxiliary mounting pad – options AB, BC, CD, BB

Frame Size 075 NFPE Options FK, FL, FM, FN

Integrated NFPE control, endcap side ports

Danfoss | March 2022 BC152886483413en-000910 | 57

248

[9.772]

57.15

[2.250]

27.76

[1.093]

172

[6.780]

221 max.

[8.701]

Gage port M5 Servo pressure 9/16-18UNF-2B

Split flange boss (2x) DN 25 TypII 40MPa series per ISO 6162 Thread: 0.4375-14UNC-2B

[7/16-14UNC-2B]

0.83 min.

full thread depth

Gage port M4 Servo pressure 9/16-18UNF-2B

Connector Deutsch: DTM 06-3 S

View "C"

110.8

[4.362]

[3.31]

Multifunction valve

Charge pressure relief valve

Charge pump inlet S 1-5/16-12UN-2B

View "A"

P104325E

253

[9.962]

141

[5.557]

View "D"

Charge pr essure Gage port M3 9/16-18UNF-2B

Optional: Part for speed pick up 9/16-18UNF-2B

P104 326E

Technical Information

Series 90 Axial Piston Pumps

Installation Drawings

Integrated NFPE control, endcap side ports (continued)

58 | © Danfoss | March 2022 BC152886483413en-000910

262.4

[10.332]

141.7

[5.581]

[2.558]

39.4 [1.551]

View "E"

P104 327E

"B"

"A"

[0.157]

124.2

[4.89]

99.0 [3.90]

[2.402]

27.76

[1.093]

[2.402]

[2.118]

306

[12.043]

Connector AMP Junior Typ A

Case drain L1 1-1/16-12UN-2B

[0.56]

7.95

[0.313]

R0.8 max.

[0.03]

12.45±0.25

[0.490±0.010]

System pressure B Gage port M2 9/16-18UNF-2B

156

[6.142]

57.15 [2.25]

242

[9.54]

248

[9.75]

Charge pump inlet 1-5/16-12UN-2B

Approx center of gravity

"E"

"C"

System pressure A Gage port M1 9/16-18UNF-2B

Split flange boss (2x) DN 25 TypII 40MPa series per ISO 6162 Thread: 0.4375-14UNC-2B

[7/16-14UNC-2B]

0.83 min.

full thread depth

P104 328E

Technical Information

Series 90 Axial Piston Pumps

Installation Drawings

Integrated NFPE control, endcap twin ports

Danfoss | March 2022 BC152886483413en-000910 | 59

172

[6.780]

221 max.

[8.701]

Gage port M5 Servo pressur e 9/16-18UNF-2B

Gage port M4 Servo pressur e 9/16-18UNF-2B

Connec tor Deutsch: DTM 06-3 S

View "C"

P104 329E

7.9

[0.311]

Coupling must not protude beyond this surface

P108 504E

Technical Information

Series 90 Axial Piston Pumps

Installation Drawings

Shaft dimensions

60 | © Danfoss | March 2022 BC152886483413en-000910

P108 579E

9.1

[0.358]

[3.504]

Cone flange must not protude beyond this point

Option T6

32.1

[1.264]

M24 x 1.5

Shaft/cone 1:8 SAE standard J501

38.1 [1.5]

Self lock nut DIN 985

Washer DIN EN ISO 7089-300

Wrench size 36 mm

Refer to (torque - tapered shafts) table page 42 for torque information

Technical Information

Series 90 Axial Piston Pumps

Installation Drawings

Shaft dimensions

Shaft Option

C7 31.8

S1 24.9

C6 28.7

G1 28.5

Undercu t Diamete

Full Spline

Major Diamet er

Pitch Diamet er

T U* V W X

[1.25]

[0.98]

[1.13]

[1.12]

34.8 [1.37]

27.9 [1.10]

31.2 [1.23]

34.6 [1.36]

37.59 [1.48]

31.14 [1.23]

34.42 [1.36]

32.93 [1.3]

36.513 [1.4375]

29.633 [1.1667]

33.3375

1.3125

31.75 [1.25]

LengthNumber

of Teeth

47.6

23 16/3230 [1.875 ]

47.6

14 112/2430 [1.875 ]

47.6

21 16/3230 [1.875 ]

47.6

25 20/4030 [1.875 ]

Pitch Pressur

e Angle

Degrees

Spline

ANSI B92.1

Side fit, Fillet Root

* Minimum active spline length for the specified torque ratings

Danfoss | March 2022 BC152886483413en-000910 | 61

Ø 6.73±0.13

[Ø 0.265±0.005]

R 25.4±0.3

[R 1.0±0.01]

R 50.8±0.3

[R 2.0±0.01]

"B"

"A"

30°

minimum

30°

minimum

Neutral position

Torque applied to control handle shaft not to exceed 17 Nm [150 lbf•in]

Maximum

displacement

Maximum

displacement

Manual displacement control handle

dimensions

Gauge port M3 charge pressure 9/16-18UNF-2B

Multifunction valve

Charge pressure relief valve

View "X"

Multifunction valve

89.7

[3.53]

Port S: charge pump inlet 1-5/8-12UN-2B

[2.60]

Coupling may not protrude beyond this surface

20.3

[0.80]

14.2 [0.56]

161 [6.34]

Port L2

180.3 [7.10]

143.3 [5.64]

port B

148.7 [5.85]

Gauge port M1 system pressure A 9/16-18UNF-2B

Approximate

center of gravity

Gauge port M2 system pressure B 9/16-18UNF-2B

9.4 [0.37]

"X"

"Z"

"Y"

7.9

[0.31]

139.1 [5.48]

port L1

339.0

[13.35]

99.1 [3.90]

port A

288 [11.34]

port S

277.7

[10.93]

Port L1 case drain use highest port as outlet 1-1/16-12UN-2B

87.3

[3.44]

204.6 [8.06]

Gauge port M5 servo pressure 9/16-18UNF-2B

Gauge port M4 Servo pressure 9/16-18UNF-2B

Coupling may not protrude beyond this surface

7.9 [0.31]

27.76

[1.093]

View "Y"

57.15 [2.25]

Ports A and B

1.00 - 6000 psi split flange boss per SAE J518 (Code 62) 7/16-14UNC-2B except 21 [0.83] minimum full thread

[1.65]

57.25

[2.254]

114.5

[4.508]

100.37 [3.95]

port L2

102

[4.02]

164.2

[6.46]

Approximate

center of gravity

Port L2 case drain 1-1/16-12UN-2B

View "Z"

108.5 [4.27]

119.6 [4.71]

"W"

Ø 14.27 [Ø 0.562]

(2x)

Rotation

CCW

Control MDC, option MA

M10

P102 050

41.67 [1.64]

12.70 [0.50]

Ø 6.33

[Ø 0.249]

4.78 [0.188]

External charge plug 1 5/16-12 UNF

±0.25 [±0.01]

Ø 127

[Ø 5.000]

-0.05 [+0.000]

[-0.002]

12.45 [0.49]

Technical Information

Series 90 Axial Piston Pumps

Installation Drawings

Frame Size 100

Manual Displacement Control (MDC), endcap side ports, option 60

62 | © Danfoss | March 2022 BC152886483413en-000910

277.9

[10.94]

Gauge port M1: system pressure A 9/16-18UNF-2B

Gauge port M2 system pressure B 9/16-18UNF-2B

"Y"

66.8

[2.63]

66.8

[2.63]

280.5

[11.04]

57.15 [2.25]

27.76

[1.093]

Port S: charge pump inlet 1-5/8-12UN-2B

View "Y"

99.8 [3.93]

port S

108

[4.25]

Ports A and B 1 - 6000 psi split flange boss per SAE J518 (Code 62) 7/16-14UNC-2B 21 [0.83] minimum full thread

P102 051

Technical Information

Series 90 Axial Piston Pumps

Installation Drawings

Manual Displacement Control (MDC), endcap twin ports, option 80

Danfoss | March 2022 BC152886483413en-000910 | 63

M10

SAE B, Option BC

378,3

(14.89)

360,9

(14.21)

for O-Ring ø94.92 x 2.62 (3.737 Dia x 0.103)

"X"

ø101,65

(4.002 Dia)

COUPLING SPLINE DATA: Pitch Dia = 20,6375 (.8125) Pressure Angle = 30 Number of teeth = 13 Pitch = 16/32 ANSI B92.1-1970, Class 6, Fillet Root Side Fit Length of spline = 29,51 (1.16)

+ 0,13

(+.005)

(- .000)

17,66

(.70)

View "X"

4 Threads 1/2-13UNC-2B 22 (.87) deep

146

(5.75)

146

(5.75)

SAE C, Option CD

View "X"

6 Threads 1/2-13UNC-2B 22 (.87) deep

114,5 (4.51)

114,5

(4.51)

181

(7.13)

380,27 (14.97)

363,47

(14.31)

for O-Ring ø120.32 x 2.62 (4.737 Dia x 0.103)

"X"

ø127,03

(5.001 Dia)

COUPLING SPLINE DATA: Pitch Dia = 29,6333 (1.167) Pressure Angle = 30 Number of teeth = 14 Pitch = 12/24 ANSI B92.1-1970, Class 6, Fillet Root Side Fit Length of spline = 18,97 (.747)

+ 0,13

(+.005)

(- .000)

30,73

(1.21)

SAE A, Option AB

379,69 (14.95)

366,02

(14.41)

for O-Ring ø82.22 x 2.62 (3.237 Dia x 0.103)

COUPLING SPLINE DATA: Pitch Dia = 14,288 (.5625) Pressure Angle = 30 Number of teeth = 9 Pitch = 16/32 ANSI B92.1-1970, Class 6, Fillet Root Side Fit Length of spline = 37,13 (1.46)

"X"

ø82,6

(3.252 Dia)

+ 0,13

(+.005)

(- .000)

15,13

(.60)

View "X"

4 Threads 3/8-16UNC-2B 17 (.67) deep

106,375

(4.188)

106,375

(4.188)

P106 645E

Technical Information

Series 90 Axial Piston Pumps

Installation Drawings

Auxiliary mounting pads, SAE AB, SAE BC, SAE CD

64 | © Danfoss | March 2022 BC152886483413en-000910

M10

378,3

(14.89)

360,9

(14.21)

for O-Ring ø94.92 x 2.62 (3.737 Dia x 0.103)

"X"

ø101,65

(4.002 Dia)

COUPLING SPLINE DATA: Pitch Dia = 23,8125 (.9375) Pressure Angle = 30 Number of teeth = 15 Pitch = 16/32 ANSI B92.1-1970, Class 6, Fillet Root Side Fit Length of spline = 24,43 (.96)

+ 0,13

(+.005)

(- .000)

22,75

(.896)

SAE B-B, Option BB

View "X"

4 Threads 1/2-13UNC-2B 22 (.87) deep

146

(5.75)

146

(5.75)

P106 646E

7.9

[0.311]

Coupling must not protude beyond this surface

P108 505E

Technical Information

Series 90 Axial Piston Pumps

Installation Drawings

Auxiliary mounting pad, SAE BB

Shaft dimensions

Danfoss | March 2022 BC152886483413en-000910 | 65

P108 509E

9.54

[0.376]

[3.504]

Cone flange must not protude beyond this point

Option T6

47.8

[1.882]

M24 x 1.5

Shaft/cone 1:8 SAE standard J501

38.1 [1.5]

Self lock nut DIN 985

Wrench size 36 mm

Refer to (torque - tapered shafts) table page 42 for torque information

Technical Information

Series 90 Axial Piston Pumps

Installation Drawings

Shaft dimensions

Shaft Option

C7 32.3

F1 34.5

S1 24.9

C6 30

Undercu t Diamete

Full Spline

Major Diamet er

Pitch Diamet er

T U* V W X

[1.27]

[1.36]

[0.98]

38.9 [1.53]

49.5 [1.95]

30.5 [1.20]

37.59 [1.48]

43.94 [1.73]

31.14 [1.2258]

36.513 [1.4375]

41.275 [1.825]

29.634 [1.1667]

LengthNumber

of Teeth

47.6

23 16/3230 [1.875 ]

66.7

13 8/16 30 [2.625 ]

47.6

14 12/2430 [1.875 ]

Pitch Pressur

e Angle

Degrees

Spline

ANSI B92.1

Side fit, Fillet Root

* Minimum active spline length for the specified torque ratings

66 | © Danfoss | March 2022 BC152886483413en-000910

Ø 6.73

[Ø 0.265]

R 25.4

[R 1.00]

R 50.8

[R 2.00]

"B"

"A"

30°

minimum

30°

minimum

Neutral position

Torque applied to control handle shaft not to exceed 17 N•m [150 lbf•in]

Maximum

displacement

Maximum

displacement

Manual displacement control handle

dimensions

Gauge port M3 charge pressure 9/16-18UNF-2B

Multifunction valve

Charge pressure relief valve

View "X"

Multifunction valve

Gauge port M4 servo pressure 9/16-18UNF-2B

7.9 [0.31]

111

[4.37]

View "Y"

Port L1 case drain use highest port as outlet 1-5/16-12UN-2B

370

[14.58]

101.5 [4.00]

209.3 [8.24]

Gauge port M5 servo pressure 9/16-18UNF-2B

48.8

[1.92]

80.8

[3.181]

161.6 [6.36]

100 [3.94]

port L2

111.6

[4.39]

184.5

[7.26]

Approximate

center of gravity

Port L2 case drain 1-5/16-12UN-2B

View "Z"

110.5 [4.35]

"W"

Ø 20.6 [Ø 0.81]

Rotation

CCW

(2x)

16 [0.63]

166 [6.54]

port L2

185

[7.28]

31.75

[1.25]

[3.03]

147.1 [5.79]

port L1

168.5

[6.63]

66.68

[2.63]

Gauge port M1 System pressure A 9/16-18UNF-2B

300

[11.81]

Approximate center of gravity

Port S: charge pump inlet 1-5/8-12UN-2B

Gauge port M2 System pressure B 9/16-18UNF-2B

9.4 [0.37]

"X"

"Z"

"Y"

290

[11.42]

Ports A and B 1- 1/4 - 6000 psi split flange boss per SAE J518 (Code 62) 1/2-13UNC-2B 23 [0.906] minimum full thread

P102 052

External charge plug 1 5/16-12 UNF

[1.9]

Ø152.4

Ø[6]

-0.0

[+0.000

[-0.002]

[0.591]

R0.8 max.

[0.03]

[0.49]

±[0.01]

12.45

±0.25

Technical Information

Series 90 Axial Piston Pumps

Installation Drawings

Frame Size 130

Manual Displacement Control (MDC), end cap twin ports, option 80

Danfoss | March 2022 BC152886483413en-000910 | 67

SAE B, option BC

425.65 [16.76]

408

[16.06]

18.2

[0.72]

For O-ring Ø 94.92 x 2.62 [Ø 3.737 x 0.103]

"X"

Ø 101.65

[Ø 4.002]

Coupling spline data: Pitch diameter = 20.6375 [0.8125] Pressure angle = 30° Number of teeth = 13 Pitch = 16/32 ANSI B92.1-1970, class 6, fillet root side fit Length of spline = 28.77 [1.1])

+ 0.13

- 0.00

[+0.005]

[- 0.000]

4 threads 1/2-13UNC-2B 22 [0.87] deep

View "X"

146

[5.75]

146

[5.75]

SAE A, option AB

414.56 [16.32]

400.89 [15.78]

For O-ring Ø 82.22 x 2.62 [3.237 diameter x 0.103]

Coupling spline data: Pitch diameter = 14.288 [0.5625] Pressure angle = 30° Number of teeth = 9 Pitch = 16/32 ANSI B92.1-1970, class 6, fillet root side fit Length of spline = 22.4 [0.88]

"X"

Ø 82.6

[Ø 3.252]

15.6

[0.61]

+ 0.13

[+0.005]

[- 0.000]

View "X"

4 threads 3/8-16UNC-2B

17.8 [0.70] deep

106.375 [4.188]

106.375

[4.188]

View "X"

114.5

[4.51]

114.5 [4.51]

6 threads 1/2-13UNC-2B 22 [0.87] deep

181

[7.13]

SAE C, option CD

427.75 [16.84]

411.05 [16.18]

For O-ring Ø120.32 x 2.62 [Ø 4.737 x 0.103]

"X"

Ø 127.03

[Ø 5.001]

+ 0.13

[+0.005]

[-0.000]

31.4

[1.24]

Coupling spline data: Pitch diameter = 29.6333 [1.167] Pressure Angle = 30° Number of teeth = 14 Pitch = 12/24 ANSI B92.1-1970, class 6, fillet root side fit Length of spline = 29.97 [1.18]

Technical Information

Series 90 Axial Piston Pumps

Installation Drawings

Auxiliary mounting pad - options AB, BC, CD, DE, BB

4 threads 1/2-13UNC-2B 22 [0.87] deep

View "X"

146

[5.75]

146

[5.75]

SAE B-B, option BB

425.65 [16.76]

408

[16.06]

23.3

[0.92]

For O-ring Ø 94.92 x 2.62 [Ø 3.737 x 0.103]

"X"

Ø 101.65

[Ø 4.002]

Coupling spline data: Pitch diameter = 23.8125 [0.9375] Pressure angle = 30° Number of teeth = 15 Pitch = 16/32 ANSI B92.1-1970, class 6, fillet root side fit Length of spline = 24.59 [0.96]

+ 0.13

- 0.00

[+0.005]

[- 0.000]

SAE D, option DE

View "X"

4 threads 3/4-10UNC-2B 41 [1.6] deep

161.6

[6.36]

161.6 [6.36]

439.22 [17.29]

415.62 [16.36]

For O-ring Ø 153 x 3.0 [Ø 6.02 x 0.118]

"X"

Ø 152.45

[Ø 6.002]

+ 0.13

- 0.00

[+0.005]

[- 0.000]

50.84 [2.00]

Coupling spline data: Pitch diameter = 41.275 [1.625] Pressure angle = 30° Number of teeth = 13 Pitch = 8/16 ANSI B92.1-1970, class 6, fillet root side fit Length of spline =

25.22 [0.993]

P102 054

7.9

[0.311]

66.7

[2.625]

Coupling must not protude beyond this surface

Option C8 ISO 3019-1

(27 tooth)

37.0

[1.46]

43.89 [1.73]

43.89

[1.73]

42.865

[1.6875]

7.9

[0.311]

66.7

[2.625]

Coupling must not protude beyond this surface

Option F1 ISO 3019-1

(13 tooth)

28.7

[1.13]

31.2

[1.23]

41.275 [1.625]

* Minimum active spline length

for the specified torque ratings

Shaft spline data: Pitch diameter = 42.862 [1.687] Pressure angle = 30° Number of teeth = 27 Pitch = 16/32 ANSI B92.1 Fillet root side fit

Shaft spline data: Pitch diameter = 41.275 [1.625] Pressure angle = 30° Number of teeth = 13 Pitch = 8/16 ANSI B92.1 Fillet root side fit

43.89

[1.73]

Technical Information

Series 90 Axial Piston Pumps

Installation Drawings

Auxiliary mounting pad - options AB, BC, CD, DE, BB

Shaft dimensions

Danfoss | March 2022 BC152886483413en-000910 | 69

11.05

[0.44]

75.95

[2.99]

Cone flange must not protude beyond this surface

Wrench size 46 mm

P108 510E

22.1

[0.87]

28.45

[1.12]

15.88

[0.63]

Option T4

44.45

[1.75]

41.275

[1.625]

Gauge

Diameter

11.06 x 63.5

[0.4355 x 2.75]

Woodruff key

Refer to (torque - tapered shafts) table page 42 for torque information

Technical Information

Series 90 Axial Piston Pumps

Installation Drawings

ccw cw

Ø 6.73

[Ø 0.265]

R 25.4 [R 1.0]

R 50.8 [R 2.0]

"B"

"A"

minimum

Null

position

Torque applied to control handle shaft not to exceed 17 Nm [150 lbf •in]

Maximum

displacement

Maximum

displacement

Manual displacement control handle

dimensions

Port N (optional), speed pick-up 9/16-18UNF-2B

View "W"

211.28 [8.32]

[0.79]

186 [7.32]

port L2

200

[7.87]

31.75

[1.25]

[3.66]

181 [7.13]

port L1

204

[8.03]

66.68 [2.63]

Gauge port M1 system pressure A 9/16-18UNF-2B

326

[12.83]

Approximate

center of gravity

Gauge port M2 System pressure B 9/16-18UNF-2B

"X"

"Z"

"Y"

321

[12.64]

Ports A and B 1- 1/4 -6000 psi split flange boss per SAE J518 (Code 62) 1/2-13UNC-2B 23 [0.906] minimum full thread

Port S: charge pump inlet 1-5/8-12UN-2B

9.4 [0.37]

Port L1 case drain use highest port as outlet 1-5/8-12UN-2B

398

[15.67]

108

[4.25]

228

[8.97]

Gauge port M5 servo pressure 9/16-18UNF-2B

Gauge port M4 servo pressure 9/16-18UNF-2B

7.9 [0.31]

138

[5.43]

View "Y"

View "Z"

[2.20]

112.25 [4.42]

224.5 [8.84]

142 [5.59]

port L2

143

[5.63]

201.5

[7.93]

Approximate center of gravity

Port L2 case drain 1-5/8-12UN-2B

156.42 [6.16]

"W"

Ø 20.6 [Ø 0.81]

112.25

[4.42]

(2x)

View "X"

Gauge port M3 charge pressure 9/16-18UNF-2B

Multifunction valve

P102 057

CPRV

External charge plug 1 5/8-12 UNF

[1.9]

Ø165.1

Ø[6.5]

-0.05

[+0.000

[-0.002]

[0.472]

R 0.8 max.

[0.03]

[0.62 ±0.011]

15.65 ±0.25

[0.79]

Technical Information

Series 90 Axial Piston Pumps

Installation Drawings

Frame Size 180

Manual Displacement Control (MDC), end cap twin ports, option 80

Danfoss | March 2022 BC152886483413en-000910 | 71

View "X"

442.9

[17.44]

429.3

[16.90]

For O-ring Ø 82.22 x 2.62 [Ø 3.237 x 0.103]

"X"

Coupling spline data: Pitch diameter = 14.288 [0.5625] Pressure angle = 30° Number of teeth = 9 Pitch = 16/32 ANSI B92.1-1970, class 6, fillet root side fit Length of spline = 17.8 [0.70]

SAE A, option AB

+ 0.13

- 0.00

[+0.005]

[- 0.000]

Ø 82.6

[Ø 3.252]

[0.59]

SAE B, option BC

454.1

[17.88]

436.4

[17.18]

For O-ring Ø 94.92 x 2.62 [Ø 3.737 x 0.103]

"X"

Ø 101.65

[Ø 4.002]

Coupling spline data: Pitch diameter = 20.6375 [0.8125] Pressure angle = 30° Number of teeth = 13 Pitch = 16/32 ANSI B92.1-1970, class 6, fillet root side fit Length of spline = 29.5 [1.16]

+ 0.13

- 0.00

[+0.005]

[- 0.000]

17.5

[0.69]

View "X"

456.1

[17.96]

439.4

[17.30]

For O-ring Ø 120.32 x 2.62 [Ø 4.737 x 0.103]

"X"

Ø 127.03

[Ø 5.001]

Coupling spline data: Pitch diameter = 29.6333 [1.167] Pressure angle = 30° Number of teeth = 14 Pitch = 12/24 ANSI B92.1-1970, class 6, fillet root side fit Length of spline = 22.1 [0.87]

+ 0.13

- 0.00

[+0.005]

[- 0.000]

30.5

[1.20]

SAE C, option CD

View "X"

P102 058

4 threads 3/8-16UNC-2B

17.8 [0.70] deep

106.375

[4.188]

106.375 [4.188]

4 threads 1/2-13UNC-2B 22 [0.87] deep

146

[5.75]

146

[5.75]

6 threads 1/2-13UNC-2B 22 [0.87] deep

114.5 [4.51]

114.5

[4.51]

181

[7.13]

Technical Information

Series 90 Axial Piston Pumps

Installation Drawings

Auxiliary mounting pad - options AB, BC, CD, DE, EF, EG, BB

View "X"

SAE E, option EF

View "X"

SAE E, option EG

SAE D, option DE

"X"

464.8

[18.30]

448.1

[17.64]

For O-ring Ø 153 x 3.0 [Ø 6.02 x 0.118]

Coupling spline data: Pitch diameter = 41.275 [1.625] Pressure angle = 30° Number of teeth = 13 Pitch = 8/16 ANSI B92.1-1970, class 6, fillet root side fit Length of spline = 25.9 [1.02]

+ 0.13

- 0.00

[+0.005]

[- 0.000]

Ø152.45

[Ø 6.002]

49.9

[1.96]

For O-ring Ø 158.42 x 2.62 [6.24 x 0.10]

"X"

Coupling spline data: Pitch diameter = 41.275 [1.625] Pressure angle = 30° Number of teeth = 13 Pitch = 8/16 ANSI B92.1-1970, class 6, fillet root side fit Length of spline = 25.9 [1.02]

46.5

[1.83]

Ø 165.15

[Ø 6.501]

+ 0.13

- 0.00

[+0.005]

[- 0.000]

448.1

[17.64]

For O-ring Ø 164.77 x 2.62 [Ø 6.48 x 0.10]

"X"

Coupling spline data: Pitch diameter = 42.862 [1.687] Pressure angle = 30° Number of teeth = 27 Pitch = 16/32 ANSI B92.1-1970, class 6, fillet root side fit Length of spline = 28.5 [1.12]

49.9

[1.96]

Ø 165.15

[Ø 6.501]

+ 0.13

- 0.00

[+0.005]

[- 0.000]

473.1

[18.63]

P102 059

224.5 [8.84]

224.5

[8.84]

4 threads 3/4-10UNC-2B 41 [1.61] deep

224.5

[8.84]

224.5 [8.84]

4 threads 3/4-10UNC-2B 41 [1.61] deep

161]6

[6.36]

161.6 [6.36]

4 threads 3/4-10UNC-2B 41 [1.61] deep

448.1

[17.64]

473.1

[18.63]

Technical Information

Series 90 Axial Piston Pumps

Installation Drawings

Auxiliary mounting pad - options AB, BC, CD, DE, EF, EG, BB

Danfoss | March 2022 BC152886483413en-000910 | 73

454.1

[17.88]

436.4

[17.18]

For O-ring Ø 94.92 x 2.62 [Ø 3.737 x 0.103]

"X"

Ø 101.65 [Ø 4.002]

Coupling spline data: Pitch diameter = 23.8125 [0.9375] Pressure angle = 30° Number of teeth = 15 Pitch = 16/32 ANSI B92.1-1970, class 6, fillet root side fit Length of spline = 24.49 [0.96]

+ 0.13

- 0.00 [+0.005]

[- 0.000]

22.6

[0.89]

View "X"

SAE B-B, option BB

P102 060

4 threads 1/2-13UNC-2B 22 [0.87] deep

146

[5.75]

146

[5.75]

8.3

[0.33]

Coupling must not protude beyond this surface

P108 507E

66.68

[2.63]

Technical Information

Series 90 Axial Piston Pumps

Installation Drawings

Auxiliary mounting pad - options AB, BC, CD, DE, EF, EG, BB

Shaft dimensions

Shaft Option T U* V W C8 39

F1 34.04

Undercut Diameter

[1.54]

[1.34]

Full Spline

42.5 [1.67]

Major Diameter

44.35 [1.75]

43.94 [1.73]

Pitch Diameter

42.8625 [1.8450]

41.275 [1.825]

Number of

Pitch Pressure

Angle

Teeth

27 16/32 30

Degrees

13 8/16 30

Degrees

Spline

ANSI B92.1

* Minimum active spline length for the specified torque ratings

Side fit, Fillet Root

Ø 6.73

[Ø 0.265]

R 25.4 [R 1.0]

R 50.8 [R 2.0]

"B"

"A"

minimum

Null

position

Torque applied to control handle shaft not to exceed 17 Nm (150 lbf•in]

Maximum

displacement

Maximum

displacement

Manual displacement control handle

dimensions

Port N (optional), speed pick-up 9/16-18UNF-2B

View "W"

191

[7.52]

[0.79]

186 [7.32]

port L2

210

[8.27]

35.71

[1.41]

36.5

[1.44]

[3.86]

181 [7.13]

port L1

212 maximum

[8.35]

69.85 [2.75]

79.38 [3.13]

341

[13.43]

Approximate

center of gravity

"X"

"Z"

"Y"

331 [13]

Port L1 case drain use highest port as outlet 1-5/8-12UN-2B

419

[16.5]

108

[4.25]

228

[8.98]

Gauge port M5 servo pressure 9/16-18UNF-2B

Gauge port M4 servo pressure 9/16-18UNF-2B

7.9 [0.31]

136

[5.35]

View "Y"

View "Z"

[2.20]

112.25 [4.42]

224.5 [8.84]

142 [5.59]

port L2

143

[5.63]

201.5

[7.93]

Approximate center of gravity

Port L2 case drain 1-5/8-12UN-2B

"W"

Ø 20.6 [Ø 0.81]

Rotation

CCW

(2x)

View "X"

Gauge port M3 Charge pressure 9/16-18UNF-2B

Multifunction Valve

Multifunction valve

Charge pressure relief valve

Port S: charge pump Inlet 1- 1/2 3000 psi split flange boss per SAE J518 (Code 61) 1/2-13UNC-2B 24 [0.94] minimum full thread

Ports A and B 1- 1/2 - 6000 psi split flange boss per SAE J518 (Code 62) 5/8-11UNC-2B, 25 [0.98] minimum full thread

Gauge port M10 charge pump Inlet 9/16-18UNF-2B

Gauge port M1 system pressure A 9/16-18UNF-2B

Gauge port M2 system pressure B 9/16-18UNF-2B

9.4 [0.37]

185.5

[7.30]

M10

P102 061

External charge plug 1 5/8-12 UNF

[1.9]

Ø165.1

Ø[6.5]

-0.05

[+0.000

[-0.002]

[0.472]

R 0.8 max.

[0.03]

[0.62 ±0.011]

15.65 ±0.25

[0.79]

Technical Information

Series 90 Axial Piston Pumps

Installation Drawings

Frame Size 250

Manual Displacement Control (MDC), end cap twin ports, option 80

Danfoss | March 2022 BC152886483413en-000910 | 75

477.1

[18.78]

460.4

[18.13]

For O-ring Ø 120.32 x 2.62

[Ø 4.737 x 0.103]

"X"

Ø 127.03

[Ø 5.001]

Coupling sp line da ta: Pitch diameter = 29.6333 [1.167] Pressure ang le = 30° Numbe r of tee th = 14 Pitch = 12/24 ANSI B92.1-1970, class 6, fillet roo t side fit

Len gth of spline = 22.1 [0.87]

+ 0.13

- 0.00

[+0.005]

[- 0.000]

30.5

[1.20]

SAE B, opt ion BC

475.1

[18.70]

457.4

[18.01]

For O-ring Ø 94.92 x 2.62

[Ø 3.737 x 0.103]

"X"

Ø 101.65

[Ø 4.002]

Coupling sp line da ta: Pitch diameter = 20.6375 [0.8125] Pressure ang le = 30° Numbe r of tee th = 13 Pitch = 16/32 ANSI B92.1-1970, class 6, fillet roo t side fit

Len gth of spline = 29.5 [1.16]

+ 0.13

- 0.00

[+0.005]

[- 0.000]

17.5 [0.69]

SAE C, op tion CD

6 thre ads 1/2-13UNC-2B

22 [0.87] de ep

View "X"

114.5

[4.51]

114.5

[4.51]

181

[7.13]

463.90 [18.26]

450.30

[17.73]

Coupling sp line da ta: Pitch diameter = 14.288 [0.5625] Pressure ang le = 30°

Numbe r of tee th =

Pitch = 16/32 ANSI B92.1-1970, class 6, fillet roo t side fit

Len gth of spline = 17.8 [0.70]

For O-ring Ø 82.22 x 2.62

[Ø 3.237 x 0.103]

+ 0.13

- 0.00

[+ 0.005]

[- 0.000]

Ø 82.6

[Ø 3.252]

[0.59]

"X"

SAE A, option AB

View "X"

4 thre ads 3/8-16UNC-2B

17.8 [0.70] dee p

106.375

[4.188]

106.375

[4.188]

4 thre ads 1/2-13UNC-2B

22 [0.87] de ep

View "X"

146

[5.75]

146

[5.75]

P102 062

Technical Information

Series 90 Axial Piston Pumps

Installation Drawings

Auxiliary mounting pad - options AB, BC, CD, DE, EF, EG, BB

View "X"

SAE E, option EF

View "X"

SAE E, option EG

SAE D, option DE

"X"

485.8

[19.13]

469.1

[18.47]

For O-ring Ø 153 x 3.0 [Ø 6.02 x 0.118]

Coupling spline data: Pitch diameter = 41.275 [1.625] Pressure angle = 30° Number of teeth = 13 Pitch = 8/16 ANSI B92.1-1970, class 6, fillet root side fit Length of spline = 25.9 [1.02]

+ 0.13

- 0.00

[+0.005]

[- 0.000]

Ø 152.45

[Ø 6.002]

49.9

[1.96]

494.1

[19.45]

469.1

[18.47]

For O-ring Ø 158.42 x 2.62 [Ø 6.24 x 0.10]

"X"

Coupling spline data: Pitch diameter = 41.275 [1.625] Pressure angle = 30 Number of teeth = 13 Pitch = 8/16 ANSI B92.1-1970, class 6, fillet root side fit Length of spline = 25.9 [1.02]

48.5

[1.91]

Ø 165.15

[Ø 6.501]

+ 0.13

- 0.00

[+0.005]

[- 0.000]

469.1

[18.47]

For O-ring Ø 164.77 x 2.62 [Ø 6.48 x 0.10]

"X"

Coupling spline data: Pitch diameter = 42.862 [1.687] Pressure angle = 30° Number of teeth = 27 Pitch = 16/32 ANSI B92.1-1970, class 6, fillet root side fit Length of spline = 28.5 [1.12]

46.5

[1.83]

Ø 165.15

[Ø 6.501]

+ 0.13

- 0.00

[+0.005]

[- 0.000]

494.1

[19.45]

M10

4 threads 3/4-10UNC-2B 41 [1.61] deep

161.6 [6.36]

161.6

[6.36]

M10

4 threads 3/4-10UNC-2B 41 [1.61] deep

224.5 [8.84]

224.5

[8.84]

M10

4 threads 3/4-10UNC-2B 41 [1.61] deep

224.5 [8.84]

224.5

[8.84]

P102 063

Technical Information

Series 90 Axial Piston Pumps

Installation Drawings

Auxiliary mounting pad – options AB, BC, CD, DE EF, EG, BB

Danfoss | March 2022 BC152886483413en-000910 | 77

475.1

[18.70]

457.4

[18.01]

For O-ring Ø 94.92 x 2.62 [Ø 3.737 x 0.103]

"X"

Ø 101.65

[Ø 4.00]

Coupling spline data: Pitch diameter = 23.8125 [0.9375] Pressure angle = 30 Number of teeth = 15 Pitch = 16/32 ANSI B92.1-1970, class 6, fillet root side fit Length of spline = 24.49 [0.96]

+ 0.13

- 0.00

[+0.005]

[- 0.000]

22.6

[0.89]

M10

4 threads 1/2-13UNC-2B 22 [0.87] deep

View "X"

146

[5.75]

146

[5.75]

SAE B-B, option BB

P102 064

7.9

[0.311]

66.8

[2.63]

Coupling must not protude beyond this surface

Option F1

ANSI B92.1 1970 KL.5 (13 tooth)

38.54

[1.52]

27.9

[1.10]

43.89

[1.73]

7.9

[0.311]

Coupling must not protude beyond this surface

Option C8

ANSI B92.1 1970 KL.5 (27 tooth)

[1.54]

[2.20]

44.35

[1.75]

42.8625 [1.687]

P108 508E

66.8

[2.63]

41.275 [1.625]

* Minimum active spline length

for the specified torque ratings

Shaft spline data: Pitch diameter = 41.275 [1.625] Pressure angle = 30° Number of teeth = 13 Pitch = 8/16 ANSI B92.1 Fillet root side fit

Shaft spline data: Pitch diameter = 42.8625 [1.6875] Pressure angle = 30° Number of teeth = 27 Pitch = 16/32 ANSI B92.1 Fillet root side fit

Option CA

View "W"

"W"

C1 C1

Port

C4 maximumC4 maximum

Port

Displacement limiter

option 4

limitation both sides

P102065

Technical Information

Series 90 Axial Piston Pumps

Installation Drawings

Auxiliary mounting pad – options AB, BC, CD, DE, EF, EG, BB

Shaft dimensions

Cover Plate

View "W"

C5 maximum

Option DC & DD

"W"

P102065a

C5.1

C5.2

Technical Information

Series 90 Axial Piston Pumps

Installation Drawings

Dimensions

Frame size C1 C2 C3 C4 maximum (option 4)

055 69.2 [2.72] 179.4 [7.06] 103.6 [4.08] 114 [4.48] 075 74.2 [2.92] 185.7 [7.31] 109.4 [4.31] 118 [4.65] 100 83.3 [3.28] 183.3 [7.22] 118.3 [4.66] 136 [5.35] 130 86.6 [3.41] 209.3 [8.24] 137.2 [5.40] 141 [5.55] 180 - - - 184 [7.24] 250 - - - 184 [7.24]

3-Position (F-N-R) Electric Control

Dimensions

Frame size C5 maximum C5.1 C5.2

055 200.6 [7.90] 108.8 [4.28] 106.2 [4.18] 075 207.9 [8.19] 108.8 [4.28] 106.2 [4.18] 100 216.8 [8.54] 117.4 [4.62] 97.6 [3.84] 130 235.7 [9.28] 102.4 [4.03] 112.6 [4.43] 180 252.4 [9.94] 94.6 [7.32] 120.4 [4.74] 250

[option DD only]

Danfoss | March 2022 BC152886483413en-000910 | 79

210.4 [8.28] 94.6 [7.32] 120.4 [4.74]

(Frame size 042 only)

Frame size 042 only

View "W"

P102 066

"W"

Port

Option KA & KP

Packard-

Connector

option KP

Option HF, HS

View "W"

C8.2 (port X1)

C11

Port X1

C12

C10

Port X2

"W"

C8.1 (port X2)

Technical Information

Series 90 Axial Piston Pumps

Installation Drawings

Electric Displacement Control (EDC) with MS-Connector or Packard® connector

Dimensions

Frame size C6 C7

055 95.3 [3.75] 141.2 [5.56] 075 105.2 [4.14] 144.8 [5.70] 100 114.0 [4.49] 153.7 [6.05] 130 99.1 [3.90] 172.7 [6.80] 180 93.4 [3.68] 190.0 [7.48] 250 93.4 [3.68] 226.2 [8.91]

Hydraulic Displacement Control (HDC)

Dimensions

Frame size C8.1 C8.2 C9 C10 C11 C12

055 150.8 [5.94] 139.0 [5.47] 71.0 [2.79] 75.7 [2.98] 105.6 [4.15] 115.2 [4.53] 075 148.9 [5.86] 139.0 [5.47] 68.2 [2.68] 67.0 [2.63] 121.8 [4.79] 125.3 [4.93]

Option MB

View "W"

C14

"W"

Neutral start switch

C13

P102 067

Technical Information

Series 90 Axial Piston Pumps

Installation Drawings

Dimensions (continued)

Frame size C8.1 C8.2 C9 C10 C11 C12

100 158.0 [6.22] 149.0 [5.86] 76.8 [3.02] 67.0 [2.63] 127.9 [5.03] 131.4 [5.17] 130 176.7 [6.95] 167.7 [6.60] 61.8 [2.43] 67.0 [2.63] 142.1 [5.59] 145.6 [5.73] 180/250 194.0 [7.63] 185.0 [7.28] 54.0 [2.12] 67.0 [2.63] 148.6 [5.85] 152.1 [5.99]

Manual Displacement Control (MDC) with neutral start switch

Dimensions

Frame size C13 C14

055 18.0 [071] 100.0 [3.94] 075 25.0 [0.98] 106.9 [4.21] 100 31.3 [1.23] 115.8 [4.56] 130 46.0 [1.81] 134.5 [5.29] 180 52.0 [2.04] 151.8 [5.97] 250 52.0 [2.04] 151.8 [5.97]

Danfoss | March 2022 BC152886483413en-000910 | 81

"V"

"W"

View "V"

View "W"

P003 165

Option FA, FB, FC, FD

Option FG, FH

Technical Information

Series 90 Axial Piston Pumps

Installation Drawings

Electrohydraulic Displacement Control (NFPE)(except 075 NFPE)

Dimensions

Frame Size Option “X” “Y”

055 FA, FB, FC, FD 207.00 [8.15] 145.00 [5.71] 075 Special version see Frame Size 075 NFPE Options FK, FL, FM, FN on page 57 100 FA, FB, FC, FD 235.00 [9.25] 161.10 [6.34] 100 FG, FH 176.60 [6.95] 130 FG, FH 244.10 [9.61] 195.50 [7.70] 180 FG, FH 290.00 [11.42] 213.00 [8.39] 250 — — —

F4 maximum

Gauge port M3 charge pressure after filter 9/16-18UNF

View "X"

Gauge port M6 charge pressure before filter 9/16-18UNF

Option P & L

"X"

F1 = short filter cartridge (option P) F2 = long filter cartridge (option L)

22.86 [0.90]

20.3 minimum [0.80 minimum]

Required for removal

180

Ø 94.2 maximum

[Ø 3.71 maximum]

Frame size 042 – 130 = option P Frame size 042 – 250 = option L

Option R & T

View "X"

Port E from filter 7/8-14UNF (option R)

1 1 /

-12UN (option T)

5.6

[0.22]

5.6

[0.22]

Port D to filter 7/8-14UNF (option R)

1 1 /

-12UN

(option T)

F5 maximum

F6 maximum

F7 maximum

"X"

Gauge port M3 charge pressure after filter

9/16-18UNF

180

28.5

[1.12]

Frame size 042 – 130 = option R

Frame size 180 – 250 = option T

P102 068

Technical Information

Series 90 Axial Piston Pumps

Installation Drawings

Integral Pressure Filter

Remote pressure – without filter

Dimensions

Frame size F1 F2 F3 F4 maximum F5 maximum F6 maximum F7 maximum

055 174.5 [6.87] 262.6 [10.34] 240.9 [8.19] 209.6 [8.25] 114.3 [4.50] 154.3 [6.07] 169.6 [6.68] 075 174.5 [6.87] 262.6 [10.34] 253.2 [9.67] 214.4 [8.44] 119.1 [4.69] 159.1 [6.26] 174.4 [6.86] 075 NFPE 174.5 [6.87] 262.4 [10.34] 253.7 [9.99] 214 [8.441] 119 [4.691] 159 [6.264] 174 [6.866] 100 174.5 [6.87] 262.6 [10.34] 280.7 [11.05] 223.0 [8.78] 127.7 [5.03] 167.7 [6.60] 183.0 [7.20] 130 174.5 [6.87] 262.6 [10.34] 299.9 [11.81] 223.0 [9.17] 137.7 [5.03] 177.7 [6.99] 193.0 [7.60] 180 - - 327.8 [12.90] - 182.0 [7.16] 236.8 [9.32] 259.2 [10.2] 250 - - 342.8 [13.49] - 182.0 [7.16] 236.8 [9.32] 259.2 [10.2]

Danfoss | March 2022 BC152886483413en-000910 | 83

Danfoss Power Solutions GmbH & Co. OHG

Krokamp 35 D-24539 Neumünster, Germany Phone: +49 4321 871 0

Danfoss Power Solutions ApS

Nordborgvej 81 DK-6430 Nordborg, Denmark Phone: +45 7488 2222

Danfoss Power Solutions (US) Company

2800 East 13th Street Ames, IA 50010, USA Phone: +1 515 239 6000

Danfoss Power Solutions Trading (Shanghai) Co., Ltd.

Building #22, No. 1000 Jin Hai Rd Jin Qiao, Pudong New District Shanghai, China 201206 Phone: +86 21 2080 6201

Products we offer:

Hydro-Gear

www.hydro-gear.com

Daikin-Sauer-Danfoss

www.daikin-sauer-danfoss.com

Cartridge valves

•

DCV directional control

•

valves Electric converters

•

Electric machines

•

Electric motors

•

Gear motors

•

Gear pumps

•

Hydraulic integrated

•

circuits (HICs) Hydrostatic motors

•

Hydrostatic pumps

•

Orbital motors

•

PLUS+1® controllers

•

PLUS+1® displays

•

PLUS+1® joysticks and

•

pedals PLUS+1® operator

•

interfaces PLUS+1® sensors

•

PLUS+1® software

•

PLUS+1® software services,

•

support and training Position controls and

•

sensors PVG proportional valves

•

Steering components and

•

systems Telematics

•

Danfoss Power Solutions is a global manufacturer and supplier of high-quality hydraulic and electric components. We specialize in providing state-of-the-art technology and solutions that excel in the harsh operating conditions of the mobile off-highway market as well as the marine sector. Building on our extensive applications expertise, we work closely with you to ensure exceptional performance for a broad range of applications. We help you and other customers around the world speed up system development, reduce costs and bring vehicles and vessels to market faster.

Danfoss Power Solutions – your strongest partner in mobile hydraulics and mobile electrification.

Go to www.danfoss.com for further product information.

We offer you expert worldwide support for ensuring the best possible solutions for outstanding performance. And with an extensive network of Global Service Partners, we also provide you with comprehensive global service for all of our components.

Local address:

Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice. This also applies to products already on order provided that such alterations can be made without subsequent changes being necessary in specifications already agreed. All trademarks in this material are property of the respective companies. Danfoss and the Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.

Danfoss | March 2022 BC152886483413en-000910

Danfoss Series 90 Axial Piston Pumps User guide

Specifications and Main Features

Frequently Asked Questions

User Manual

Contents

General Description

Series 90 Family of Pumps and Motors

PLUS+1 Compliant Controls and Sensors

Design

Series 90 Pictorial Circuit Diagram

System schematic

Technical Specifications

General Specifications

Features and Options

Operating Parameters

Fluid Specification

Operating Parameters

Input Speed

Independent Braking System

System Pressure

Servo Pressure

Charge Pressure

Charge Pump Inlet Pressure

Case Pressure

External Shaft Seal Pressure

Temperature

Viscosity

System Design Parameters

Filtration System

Filtration Options

Suction filtration – Option S

Charge pressure filtration (partial charge pump flow)

Remote charge pressure filtration

Fluid Selection

Reservoir

Case Drain

Pump Life

Charge Pump

Charge pump sizing/selection

Bearing Loads and Life

Applications with external shaft loads

Understanding and Minimizing System Noise

Sizing Equations

Mounting Flange Loads

Master Model Code

Series 90 Master Model Code Breakdown

S90 Rotation and Size Options

Control Features

3-Position (FNR) Electric Control - DC, DD

Response time

Electric Displacement Control (EDC), Options KA, KP, KT

Features and Benefits

Response time

Pump output flow direction vs. control current

Manual Over Ride (MOR)

Hydraulic Displacement Control (HDC), Option HF, HS

Operation

Features and Benefits

Response time

Pump output flow direction vs. control pressure

Manual Displacement Control (MDC), Options MA, MB

Features and benefits

External control handle requirements

Response Time

Pump output flow direction vs. control handle rotation

Neutral start switch (NSS) for MDC

Non Feedback Proportional Electric Control (NFPE)

Control response

NFPE control used with a Danfoss microcontroller

Input signal requirements

Features and Options

Multi-Function Valves

Overpressure protection

Pressure limiting function

Bypass Function

Auxiliary Mounting Pads

Mating pump requirements

Displacement Limiter

Shaft Torque

Shaft torque and spline lubrication