Danfoss H1T 045, H1T 053, H1T 060, H1T 068 User guide

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Technical Information

H1T 045/053/060/068

Axial Piston Tandem Pumps

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Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Revision history Table of revisions

Date Changed Rev

December 2021 Added HDC control 1001

April 2021 Corrected interface with ECU graphic 0905

June 2020 Added section title in ports chapter for clarity 0904

March 2020 Updated port information and changed document number from BC00000060 0903

July 2018 Major revision. 0801

June 2018 Angle sensor chapters added. 0701

September 2017 add G6 option 0603

June 2017 minor edit page 40 0602

April 2017 add 60-68 0601

November 2015 Master Model Code changes 0501

2010-2014 Various changes. BA-EA

Jul 2009 First edition AA

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Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Technical Specifications

H1 Pumps General Specification.................................................................................................................................................5

Technical Data for H1 Tandem Pumps..................................................................................................................................... 5

Operating parameters for H1 Tandem Pumps...................................................................................................................... 6

Fluid Specification............................................................................................................................................................................7

External radial shaft loads H1 Tandem..................................................................................................................................... 7

Bearing Life.........................................................................................................................................................................................8

Mounting flange loads H1T 045/053.........................................................................................................................................8

Mounting flange loads H1T 060/068.........................................................................................................................................9

Case drain............................................................................................................................................................................................9

Master Model Code

H1T rotation, ports, and second pump options..................................................................................................................10

H1T Controls Options................................................................................................................................................................... 10

H1T Orifice and Displacement Limiter Options.................................................................................................................. 11

H1T Endcap and Mounting Options....................................................................................................................................... 11

H1T Input Shaft and Aux Mounting Options....................................................................................................................... 12

H1T High Pressure Relief Valve Options................................................................................................................................ 12

H1T Pressure Limiter, Charge Pump, and Filtration Options......................................................................................... 13

H1T Charge Pressure Relief, Special Hardware and Settings......................................................................................... 14

Control Options

Electrical Displacement Control (EDC)................................................................................................................................... 15

Control Solenoid Data.............................................................................................................................................................16

Manual Displacement Control (MDC) ....................................................................................................................................17

Hydraulic Displacement Control (HDC)................................................................................................................................. 21

HDC principle.............................................................................................................................................................................21

HDC operation...........................................................................................................................................................................21

Hydraulic signal pressure range..........................................................................................................................................22

Pump output flow direction vs. control pressure.........................................................................................................22

Control response.......................................................................................................................................................................22

Response time, HDC 047/053, 060/068............................................................................................................................23

Forward-Neutral-Reverse Control (FNR)................................................................................................................................24

Control response.......................................................................................................................................................................25

Non feedback proportional electric control (NFPE).......................................................................................................... 26

Manual Override (MOR)............................................................................................................................................................... 28

Swashplate angle sensor for EDC controls........................................................................................................................... 29

Swash plate angle sensor parameters (EDC).................................................................................................................. 29

Swash plate angle sensor connector.................................................................................................................................30

Interface with ECU (EDC)........................................................................................................................................................30

Swash Plate Angle Sensor for NFPE and AC2 Controls.....................................................................................................31

Swash Plate Angle Sensor Parameters (NFPE/AC)........................................................................................................31

Swash-plate Angle Sensor Connector (NFPE/AC2)...................................................................................................... 32

Interface with ECU (NFPE)......................................................................................................................................................32

Control-Cut-Off (CCO) and Brake Release Valves............................................................................................................... 33

Displacement Limiter................................................................................................................................................................... 35

Port Locations

Port Locations H1T 045/053 Tandem..................................................................................................................................... 36

Port Locations H1T 060/068 Tandem..................................................................................................................................... 38

Dimensions

Dimensions H1T 045/053 Tandem.......................................................................................................................................... 39

Dimensions H1T 060/068 Tandem.......................................................................................................................................... 42

Input shaft, option G1 (SAE C, 14 teeth) (045/053/060/068)..........................................................................................43

Input shaft, option G5 (SAE B-B, 15 teeth) (045/053 only).............................................................................................. 44

Input shaft, option G6, (19 teeth-long) (045/053 only).................................................................................................... 45

Input shaft, option F1, (060/068 only)....................................................................................................................................46

Auxiliary mounting pads ............................................................................................................................................................47

060/068 Control dimensions..................................................................................................................................................... 53

045/053 Control dimensions..................................................................................................................................................... 56

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Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Contents

Hydraulic Displacement Control (HDC), options T1, T2...................................................................................................62

Center section coupling, torque rating..................................................................................................................................63

Control Cut Off (CCO)................................................................................................................................................................... 64

045/053 CCO...............................................................................................................................................................................64

060/068 CCO...............................................................................................................................................................................65

Displacement limiter, H1 Tandem, option B........................................................................................................................66

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Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Technical Specifications

H1 Pumps General Specification

Axial piston closed circuit variable displacement pumps of cradle swash-plate design with clockwise or counterclockwise direction of rotation.

Pipe connections

•

Main pressure ports H1P 045/053: SAE straight thread O-ring boss

•

Main pressure ports H1P 060/068: 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. If the pump is installed with the control at the bottom, flushing flow must be provided through port M14 located on the EDC, FNR and NFPE control.

Vertical input shaft installation is acceptable. If input shaft is at the top, 1 bar case pressure must be maintained during operation. The housing must always be filled with hydraulic fluid. 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

Auxiliary cavity pressure will be inlet pressure with internal charge pump or case pressure with external charge supply. For reference see Operating Parameters. Please verify mating pump shaft seal capability.

Technical Data for H1 Tandem Pumps

Technical Data

Feature Unit 045 053 060 068

Displacement cm3 [in3] 45.0 [2.75] 53.8 [3.28] 60.4 [3.69] 68.0 [4.15] Flow at rated (continuous) speed

Torque at maximum displacement (theoretical)

Mass moment of inertia of rotating components

Mass (weight dry, without charge pump or auxiliary flange)

Oil volume l [US gal] 2.3 [0.61] 2.3 [0.61] 4.2 [1.1] 4.2 [1.1]

Applies for each rotating group.

Physical properties

Description 045/053 060/068

Mounting flange per ISO 3019-1 Flange 101-2 (SAE B), special bolt Flange 127-4 (SAE C) Input shaft outer diameter, splines

per ISO 3019-1

l/min [US gal/min]

N•m/bar [lb•in/1000 psi]

kg•m [slug•ft2]

kg [lb] 65 [143] 65 [143] 96.2 [212] 96.2 [212]

Ø25 mm - 4 (SAE B-B, 15 teeth)

•

Ø32 mm - 4 (SAE-C, 14 teeth)

•

Ø31 mm - 4 (19 teeth)

•

153 [40] 183 [48] 210 [55.5] 238 [62.8]

0.8 [488] 0.9

0.0077 [0.00568]

[549]0.007 8 [0.00575]

0.0078 [0.00575

•

Ø32 mm - 4 (SAE C, 14 teeth) Ø35 mm - 4 (SAE C, 21 teeth)

0.96 [590] 1.08 [610]

0.0143 [0.01055]

0.0143 [0.01052]

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Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Technical Specifications

Physical properties (continued)

Description 045/053 060/068

Auxiliary mounting flange with metric fasteners, shaft outer diameter and splines per ISO 3019-1

Charge inlet port per ISO 11926-1 Main port configuration ISO 11926-1: 1 5∕16 -12 (SAE O-ring

Other ports SAE O-ring boss Customer interface threads Metric fasteners

Operating parameters for H1 Tandem Pumps

Input Speed (at minimum charge/control pressure)

Description Size 045/053 Size 060/068

Minimum for external charge supply Rated 3400 min-1 (rpm) 3500 min-1 (rpm) Maximum 3500 min-1 (rpm) 4000 min-1 (rpm)

Full performance (pressure and displacement) possible at minimum charge and control pressure supply.

Flange 82–2 outer dia:

Ø16 mm - 4 (SAE A, 9 teeth)

•

Ø19 mm - 4 (SAE A, 11 teeth)

•

Flange 101–2 outer dia:

Ø22 mm - 4 (SAE B, 13 teeth)

•

Ø25 mm - 4 (SAE B-B, 15 teeth)

•

∕8 -14 (SAE O-ring boss) 1 1∕16 -14 (SAE O-ring boss)

boss)

min-1 (rpm) 500 min-1 (rpm)

Flange 101–2 outer dia:

Ø22 mm - 4 (SAE B, 13 teeth)

•

Ø25 mm - 4 (SAE B-B, 15 teeth)

•

ISO 6162: M12 x 1.75 (Split flange)

System pressure

Description Size 045 Size 053 Size 060 Size 068

System pressure Max. working 420 bar [6092 psi] 380 bar [5511 psi] 420 bar [6090 psi] 380 bar [5510 psi]

Maximum (peak) 450 bar [6527 psi] 400 bar [5802 psi] 450 bar [6525 psi] 400 bar [5800 psi] Max. low loop 45 bar [653 psi] 45 bar [650 psi] Min. low loop 10 bar [145 psi] 10 bar [145 psi]

Control pressure Min. at corner

power (EDC, MDC, FNR)

Maximum 40 bar [580 psi] 40 bar [580 psi]

21.5 bar [312 psi] 18.5 bar [270 psi]

Other pressure type for all tandem pumps

Description 045–068

Charge pressure Minimum without CCO valve 14.5 bar [210 psi]

Minimum with CCO valve 18 bar [265 psi] Maximum 34 bar [493 psi]

Case pressure Rated 3.0 bar [44.0 psi]

Maximum 5.0 bar [73.0 psi]

Lip seal external Maximum 0.4 bar [5.8 psi]

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Re =

P003 303E

270° Re

180° Re

90° Re

0° Re

CCW Rotation

CW Rotation

Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Technical Specifications

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.

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.

5 mm2/s [42 SUS]

7 mm2/s [49 SUS]

12 – 80 mm2/s [66 – 370 SUS]

1600 mm2/s [7500 SUS]

-40°C [-40°F]

104°C [220°F]

60 – 85°C [140 – 185°F]

115°C [240°F]

External radial shaft loads H1 Tandem

External radial shaft loads

H1 pumps are designed with bearings that can accept some external radial loads. The external radial shaft load limits are a function of the load position and orientation, and the operating conditions of the unit. External radial shaft loads impact lifetime. For lifetime calculations please contact Danfoss representative.

The maximum allowable radial load (Re) is based on the maximum external moment (Me) and the distance (L) from the mounting flange to the load.

It may be determined using the following formula:

Radial load position (045/053 shown)

Me = shaft moment L = flange distance Re = external force to the shaft

Thrust loads should be avoided. Contact factory in the event thrust loads are anticipated.

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P003 367

P003 366a

Control on top

P003 366b

Control on side

Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Technical Specifications

Bearing Life

Maximum external shaft load based on shaft deflection

External radial moment Unit Size 045 / 053 Size 060 / 068

All external shaft loads affect bearing life. In applications with external shaft loads, minimize the impact by positioning the load at 0° or 180° as shown in the figure.

Danfoss recommends clamp-type couplings for applications with radial shaft loads. Contact your Danfoss representative for an evaluation of unit bearing life if you have continuously

applied external loads exceeding 25 % of the maximum allowable radial load (Re) or the pump swashplate is positioned on one side of center all or most of the time.

Mounting flange loads H1T 045/053

H1 tandem pump front flange load

Mounting flange loads H1T 045/053, Controls on top

N•m [lbf•in] 104 [920] 104 [920]

The moments shown below apply for the control orientation on top or side.

Mounting flange loads, Control on top

Rated moment:

MR = 2020 N•m [17 880 lbf•in]

Shock load moment:

MS = 4110 N•m [36 380 lbf•in]

Mounting flange loads, Control on side

Rated moment:

MR = 1300 N•m [11 510 lbf•in]

Shock load moment:

MS = 2930 N•m [25 935 lbf•in]

For more information, see H1 Axial Piston Pumps, Basic Information, BC152886483968, the section “Mounting flange loads”.

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P109515

Rated moment:

MR = 2190 N•m [19 380 lbf•in]

Shock load moment:

MS = 6560 N•m [58 060 lbf•in]

Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Technical Specifications

Mounting flange loads H1T 060/068

H1 tandem pump front flange load

Mounting flange loads H1T 060/068, Controls on top

The moments shown apply for the control orientation on top or side.

Case drain

For more information, see H1 Axial Piston Pumps, Basic Information, BC152886483968, the section “Mounting flange loads”.

The tandem housings are connected through the center section via a drilled hole. The charge relief valve discharges oil into the front housing. In order to provide positive flow through both housings, use of the rear housing case drain is required. The front housing case pressure ports should only be used if the pump is used as a common drain manifold for the vehicle where external drain flow is brought into the rear housing and discharged out the front.

The allowable case pressures must be met accordingly.

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Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Master Model Code

H1T rotation, ports, and second pump options

Displacement (Front pump, second pump see “C”)

Code Description

045 45 cm3 [2.75 in3] 053 53.8 cm3 [3.28 in3] 060 60 cm3 [3.66 in3] 068 68 cm3 [4.15 in3]

A – Rotation

L Left hand (counter clockwise) R Right hand (clockwise)

B – Product version

A Revision code

Z – Port configuration

A Inch, Customer O-ring port sealing according to ISO 11926-1

H1T Controls Options

C – Second pump size

N Frame size of rear stage equal front stage (default) A Rear stage kit 45cc/rev (only use with 53cc/rev front stage) B Rear stage kit 60cc/rev (only use with 68cc/rev front stage)

D – Controls

Code Control type Input Miscellaneous options Connector

A2 EDC 12 V — DEUTSCH A3 EDC 24 V — DEUTSCH A4 EDC 12 V MOR DEUTSCH A5 EDC 24 V MOR DEUTSCH A9 FNR 12 V MOR DEUTSCH H3 EDC 24 V Angle sensor DEUTSCH H4 MDC front unit — Gain 0.52 with NSS —

FNR rear unit 12 V Gain 0.52 with MOR DEUTSCH H6 EDC 12 V Angle sensor + MOR DEUTSCH H7 EDC 24 V Angle sensor + MOR DEUTSCH B1 FNR 24 V MOR DEUTSCH

D7 EDC front unit 12 V MOR DEUTSCH

D9 MDC front unit — Gain 0.52 with NSS —

N1 NFPE

FNR front unit 12 V — DEUTSCH

EDC rear unit 12 V Gain 0.52 DEUTSCH

FNR rear unit 12 V MOR DEUTSCH

MDC rear unit — Gain 0.52 DEUTSCH

12 V MOR DEUTSCH

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Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Master Model Code

D – Controls (continued)

Code Control type Input Miscellaneous options Connector

N2 NFPE N5 NFPE N6 NFPE M1 MDC — — — M2 MDC — NSS — T1 HDC 4.2 - 11.6 bar — — T2 HDC 3.0 - 11.6 bar — —

Align with options: E: Displacement limiters and W: Special hardware.

H1T Orifice and Displacement Limiter Options

F – Orifices (mm)

Code Tank (A+B) P A / B Note

C3 No orifice Not to be used for FDC controls and mobile applications. C1 – – 0.8 Not to be used for FDC controls. C6 1 – – C7 1.3 – – C8 0.6 0.8 – C9 0.6 1 – D1 0.8 1 – D2 0.8 1.3 – D3 1 1.3 – D4 1 1.3 1.3 D5 0.6 0.6 0.8

24 V MOR DEUTSCH 12 V Angle sensor + MOR DEUTSCH 24 V Angle sensor + MOR DEUTSCH

To be used for MDC controls only.

E – Displacement limiter

N None C No limiters, with nested springs, required for NFPE B Adjustable externally D Adjustable externally with nested springs, required for NFPE

H1T Endcap and Mounting Options

G – Endcap options

Code Description 045/053 060/068 E7

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Tandem same-sided SAE O-ring boss ports, (HPRV only) standard —

Tandem same-sided SAE O-ring boss ports with Control Cut Off (HPRV only), 12 V —

Tandem same-sided SAE O-ring boss ports with Control Cut Off (HPRV only), 24 V —

Tandem Opp. Port Code 62, 12V CCO & Brake —

Tandem Opp. Port Code 62, 24V CCO & Brake —

Tandem Opp. Port Code 62, 12V CCO —

Tandem Opp. Port Code 62, 24V CCO —

Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Master Model Code

G – Endcap options (continued)

Code Description 045/053 060/068 H7

H – Mounting

F H J

H1T Input Shaft and Aux Mounting Options

J – Input shaft

Code Description 045/053 060/068

G1 ISO 3019-1, outer Ø32 mm - 4 (SAE C, 14 teeth splined shaft 12/24 pitch)

G5 ISO 3019-1, outer Ø25 mm - 4 (SAE B-B, 15 teeth splined shaft 16/32 pitch) —

G6 ISO 3019-1, outer Ø31 mm - 4 (19 teeth splined shaft 16/32 pitch) (45/53 only) —

F1 ISO 3019-1 outer diameter 35mm -4 (SAE C, 21 teeth splined shaft 16/32 pitch)

Tandem Opp. Port Code 62 —

Tandem Opp Port Code 62, Opposite Charge Inlet —

ISO 3019-1, flange 101-2 SAE B (045/053)

ISO 3019-1, flange 127-4 SAE C (060/068)

ISO 3019-1, flange 101-2 SAE B and speed sensor (045/053)

(60/68 only)

—

K – Auxiliary mounting pad ISO 3019-1 without charge pump, with shipping cover

Code Description 045/053 060/068

NN No auxiliary mounting pad, No shipping cover —

H2 Flange 82 - 2, outer Ø16 mm - 4 (SAE A, 9 teeth 16/32 coupling) (45/53)

H1 Flange 82 - 2, outer Ø19 mm - 4 (SAE A, 11 teeth 16/32 coupling) (45/53)

H3 Flange 101 - 2, outer Ø22 mm - 4 (SAE B, 13 teeth 16/32 coupling)

H5 Flange 101 - 2, outer Ø25 mm - 4 (SAE B-B, 15 teeth 16/32 coupling)

Align with options: S – Charge pump and Y – Special settings.

H1T High Pressure Relief Valve Options

M – High pressure relief valve setting

Code Pressure setting (Use the selection for ports A, B, C and D) 045 053 60 68

13 130 bar [1885 psi] — —

15 150 bar [2175 psi] — —

18 180 bar [2610 psi]

20 200 bar [2900 psi]

23 230 bar [3336 psi]

25 250 bar [3630 psi]

28 280 bar [4061 psi]

30 300 bar [4350 psi]

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Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Master Model Code

M – High pressure relief valve setting (continued)

Code Pressure setting (Use the selection for ports A, B, C and D) 045 053 60 68

33 330 bar [4786 psi]

35 350 bar [5080 psi]

38 380 bar [5510 psi]

40 400 bar [5800 psi] — —

41 410 bar [5946 psi] — — —

42 420 bar [6090 psi] — —

NO bypass, side “A” (front pump) N – High pressure relief valve setting, NO bypass side “B” (front pump) P – High pressure relief valve setting, NO bypass, side “C” (rear pump) R – High pressure relief valve setting, NO bypass, side “D” (rear pump).

H1T Pressure Limiter, Charge Pump, and Filtration Options

Pressure limiter 060/068

Code Pressure setting (Use the selection for ports A, B, C and D) 060 068

AE 150 bar PL / 200 bar HPRV

AH 180 bar PL / 250 bar HPRV

BK 200 bar PL / 250 bar HPRV

BC 230 bar PL / 280 bar HPRV

BE 250 bar PL / 300 bar HPRV

BH 280 bar PL / 330 bar HPRV

CK 300 bar PL / 350 bar HPRV

CC 330 bar PL / 380 bar HPRV

CE 350 bar PL / 400 bar HPRV

CH 380 bar PL / 430 bar HPRV

DK 400 bar PL / 450 bar HPRV -

DA 410 bar PL / 450 bar HPRV -

DB 420 bar PL / 450 bar HPRV -

S – Charge pump

N No charge pump, external charge supply (Align with options: T – Filtration)

T – Filtration

P Remote full charge flow filtration (045/053 only) E External charge filtration (060/068 only)

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Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Master Model Code

H1T Charge Pressure Relief, Special Hardware and Settings

V – Charge pressure relief setting

Code Description

18 18 bar [261 psi] 20 20 bar [290 psi] 22 22 bar [319 psi] 24 24 bar [348 psi] 26 26 bar [377 psi] 28 28 bar [406 psi] 30 30 bar [435 psi] 32 32 bar [464 psi] 34 34 bar [493 psi]

W – Special hardware features

PN EDC/FNR/MDC valve plate (without a handle) P1 NFPE valve plate (Align with options: D – Control selection and E – Displacement limiters) P4 EDC/FNR/MDC Valve Plate and Speed Ring (045/053 only) H1 EDC/FNR/MDC Valve Plate, included MDC Handle (All frames) H2 EDC/FNR/MDC Valve Plate, MDC Handle Front, System Loop Bypass (045/053 only)

Not to be used for NFPE controls.

X – Paint and nametag

NNN Black paint and Danfoss nametag

Y – Special settings

NNN None M00 MDC (handle in standard position)

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P003 191

Feedback from Swash plate

PTF00B

M14

C1 C2

F00A

P003 478E

"0"

-b -a

100 %

Displacement

Current mA

Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Control Options

Electrical Displacement Control (EDC)

An EDC is a displacement (flow) control. Pump swash plate position is proportional to the input command and therefore vehicle or load speed (excluding influence of efficiency), is dependent only on the prime mover speed or motor displacement.

The Electrical Displacement Control (EDC) consists of a pair of proportional solenoids on each side of a three-position, four-way porting spool. The proportional solenoid applies a force input to the spool, which ports hydraulic pressure to either side of a double acting servo piston. Differential pressure across the servo piston rotates the swash plate, changing the pump‘s displacement from full displacement in one direction to full displacement in the opposite direction.

A serviceable 170 μm screen is located in the supply line immediately before the control porting spool.

Under some circumstances, such as contamination, the control spool could stick and cause the pump to stay at some displacement.

Electrical Displacement Control

Control signal requirements, EDC H1T

Pump displacement vs. control current

EDC schematic, feedback from swash plate

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Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Control Options

EDC control current

Voltage 12 V

Minimum current to stroke pump a

Pin connections any order

Factory test current, for vehicle movement or application actuation expect higher or lower value.

Control Solenoid Data

Description 12 V 24 V

Maximum current 1800 mA 920 mA Nominal coil resistance @ 20 °C [68 °F] 3.66 Ω 14.20 Ω

@ 80 °C [176 °F] 4.52 Ω 17.52 Ω Inductance 33 mH 140 mH PWM signal frequency Range 70 – 200 Hz

Recommended IP Rating IEC 60 529 IP 67

DIN 40 050, part 9 IP 69K with mating connector Connector color Black

PWM signal required for optimum control performance.

b 1640 mA 820 mA

100 Hz

640 mA 330 mA

24 V

Control response

H1T 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).

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, and charge pressure.

A swash-plate response times table is available for each frame size. Testing should be conducted to verify the proper orifice selection for the desired response. Typical response times at the following conditions:

Δ p = 250 bar [3626 psi] Charge pressure = 20 bar [290 psi] Viscosity and temperature = 30 mm²/s [141 SUS] and 50 °C [122 °F] Speed = 1800 min-1 (rpm)

Response time, EDC 045/053

Stroking direction 0.8 mm [0.03 in] orifice 1.3 mm [0.05 in] orifice No orifice

Neutral to full flow 1.7 s 0.9 s 0.5 s Full flow to neutral 1.1 s 0.6 s 0.3 s

Response time, EDC 060/068

Stroking direction 0.8 mm [0.03 in] Orifice 1.3 mm [0.05 in] Orifice No orifice

Neutral to full flow 2.6 s 1.2 s 0.8 s Full flow to neutral 1.7 s 0.8 s 0.4 s

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"0"

Lever rotation

"A"

Displacement

100 %

-a

100 %

"B"

-b

-d b

-c

P301 752

Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Control Options

Manual Displacement Control (MDC)

A Manual proportional Displacement Control (MDC) consists of a handle on top of a rotary input shaft. The shaft provides an eccentric connection to a feedback link. This link is connected on its one end with a porting spool. On its other end the link is connected the pumps swashplate.

This design provides a travel feedback without spring. When turning the shaft the spool moves thus providing hydraulic pressure to either side of a double acting servo piston of the pump.

Differential pressure across the servo piston rotates the swash plate, changing the pump’s displacement. Simultaneously the swashplate movement is fed back to the control spool providing proportionality between shaft rotation on the control and swash-plate rotation. The MDC changes the pump displacement between no flow and full flow into opposite directions.

Under some circumstances, such as contamination, the control spool could stick and cause the pump to stay at some displacement.

For the MDC with CCO option the brake port (X7) provides charge pressure when the coil is energized to activate static function such as a brake release. The X7 port must not be used for any continuous oil consumption.

The MDC is sealed by means of a static O-ring between the actuation system and the control block. Its shaft is sealed by means of a special O-ring which is applied for low friction. The special O-ring is protected from dust, water and aggressive liquids or gases by means of a special lip seal.

Manual Displacement Control Pump displacement vs. control lever rotation

Deadband on B side: a = 3° ±1° Maximum pump stroke: b = 30° +2/-1° Required customer end stop: c = 36° ±3° Internal end stop: d = 40°

MDC operation

The MDC provides a mechanical dead-band required to overcome the tolerances in the mechanical actuation. The MDC contains an internal end stop to prevent turning the handle into any inappropriate position.

The MDC provides a permanent restoring moment appropriate for turning the MDC input shaft back to neutral position only. This is required to take the backlash out of the mechanical connections between the Bowden cable and the control.

High case pressure may cause excessive wear and the NSS to indicate that the control is not in neutral

Danfoss | December 2021 BC152886483958en-001001 | 17

position. In addition, if the case pressure exceeds 5 bar there is a risk of an insufficient restoring moment. The MDC is designed for a maximum case pressure of 5 bar and a rated case pressure of 3 bar.

CCW

Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Control Options

Customers must install some support to limit the setting range of their Bowden cable to avoid an

•

overload of the MDC. Customers can apply their own handle design but they must care about a robust clamping

•

connection between their handle and the control shaft and avoid overload of the shaft. Customers can connect two MDC’s on a tandem unit in such a way that the actuation force will be

•

transferred from the pilot control to the second control. The kinematic of the linkages must ensure that either control shaft is protected from torque overload.

Caution

Using the internal spring force on the input shaft is not an appropriate way to return the customer connection linkage to neutral, or to force a Bowden cable or a joystick back to neutral position. It is not applicable for any limitation of the Bowden cable stroke, except the applied torque to the shaft will never exceed 20 N•m.

MDC Torque

Description Value

Torque required to move handle to maximum displacement 1.4 N•m [12.39 lbf•in ] Torque required to hold handle at given displacement 0.6 N•m [5.31 lbf•in] Maximum allowable input torque 20 N•m [177 lbf•in]

Caution

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

MDC shaft rotation

Pump shaft rotation MDC shaft rotation CW CCW CW CCW

Port A in (low) out (high) out (high) in (low) Port B out (high) in (low) in (low) out (high) Servo port high pressure M5 M4 M5 M4

As seen from shaft side.

Clockwise (CW) Counter-clockwise (CCW)

Control response

H1T 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).

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, and charge pressure.

Δ p = 250 bar [3626 psi]

18 | © Danfoss | December 2021 BC152886483958en-001001

Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Control Options

Charge pressure = 20 bar [290 psi] Viscosity and temperature = 30 mm²/s [141 SUS] and 50 °C [122 °F] Speed = 1800 min-1 (rpm)

Response time, MDC 045/053

Code

C3 C6 C7 C8 C9 D1 D2 D3 D4 D5

P A B

– – – – 0.3 0.4

– – – 1 0.9 0.8

– – – 1.3 0.6 0.6

0.8 – – 0.6 2.9 2.0

1 – – 0.6 2.7 1.9

1 – – 0.8 1.7 1.2

1.3 – – 0.8 1.5 1.1

1.3 – – 1 1.1 0.8

1.3 1.3 1.3 1 1.3 1.0

0.6 0.8 0.8 0.6 5.4 2.8

Orifice description (mm) Stroking direction (sec)

Tank (A+B) Neutral to full flow Full flow to neutral

Response time, MDC H1T

Code Orifice description (mm) Stroking direction

Tank (A+B) P A/B Neutral to full flow Full flow to neutral C3 C6 C7 D1 D2 D3 D4

1 – – s s

1.3 – – s s

0.8 1 – s s

0.8 1.3 – s s

1 1.3 – s s

1 1.3 1.3 s s

No orifice s s

For further data please contact your Danfoss representative.

Neutral start switch (NSS)

The Neutral Start Switch (NSS) contains an electrical switch that provides a signal of whether the control is in neutral. The signal in neutral is Normally Closed (NC).

Danfoss | December 2021 BC152886483958en-001001 | 19

P005 702

M14

P301 749

Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Control Options

Neutral start switch schematic

Neutral start switch data

Max. continuous current with switching Max. continuous current without switching Max. voltage Electrical protection class

8.4 A

20 A

36 V

IP67 / IP69K with mating connector

Case Gauge Port M14

The drain port should be used when the control is mounted on the unit’s bottom side to flush residual contamination out of the control.

Lever

MDC controls are available with optional lever/handle. Align with Settings: Y module in the model code.

Standard orientation 90° from input shaft

20 | © Danfoss | December 2021 BC152886483958en-001001

P400520

P400519

F00B

F00A

Feedback from

Swashplate

T P

X2M14

Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Control Options

Hydraulic Displacement Control (HDC)

HDC principle

An HDC is a Hydraulic Displacement Control. Pump swashplate position is proportional to the input command and therefore vehicle speed or load speed (excluding influence of efficiency), is dependent only on the prime mover speed or motor displacement.

The HDC control uses a hydraulic input signal to operate a porting spool, which ports hydraulic pressure to either side of a double acting servo piston. The hydraulic signal applies a force input to the spool which ports hydraulic pressure to either side of a double acting servo piston. Differential pressure across the servo piston rotates the swashplate, changing the pump’s displacement from full displacement in one direction to full displacement in the opposite direction. Under some circumstances, such as contamination, the porting spool could stick and cause the pump to stay at some displacement.

A serviceable 175 μm screen is located in the supply line immediately before the control porting spool.

HDC control

HDC schematic

HDC operation

HDC’s are hydraulically driven control which ports hydraulic pressure to either side of a porting spool, which pressurizes one end of the servo piston, while draining the other end to case. Pressure differential across the servo piston moves the swashplate.

A swashplate feedback link, opposing control linkage, and a linear spring provide swashplate position force feedback to the hydraulic pressure. As hydraulic pressures in the operating loop change with load, the control assembly and servo/swashplate system work constantly to maintain the commanded position of the swashplate.

Danfoss | December 2021 BC152886483958en-001001 | 21

"0"

Signal pressure

Displacement

100 %

a b

-b -a

100 %

P102 031E

Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Control Options

The HDC incorporates a positive neutral dead band as a result of the control spool porting, preloads from the servo piston assembly, and the linear control spring. Once the neutral threshold point is reached, the swashplate is positioned directly proportional to the control pressure.

When the control input is either lost or removed, or if there is a loss of charge pressure, the spring loaded servo piston will automatically return the pump to the neutral position.

Pump displacement vs signal pressure

Hydraulic signal pressure range

Type Unit Start of control End of control

Option bar 3.0 11.6 Standard 4.2 16.2

Pump output flow direction vs. control pressure

Shaft rotation HDC Clockwise (CW) seen from shaft Counter Clockwise (CCW) seen from shaft

Port energized X1 X2 X1 X2 Port A Out (high) In (low) In (low) Out (high) Port B In (low) Out (high) Out (high) In (low) Servo port high

pressure

M4 M5 M4 M5

For appropriate performance of HDC characteristic, keep the drain pressure of pilot valve to be equal or slightly higher than pump case pressure.

Control response

H1T 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).

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, and charge pressure.

Δ p = 250 bar [3626 psi] Charge pressure = 20 bar [290 psi] Viscosity and temperature = 30 mm²/s [141 SUS] and 50 °C [122 °F] Speed = 1800 min-1 (rpm)

22 | © Danfoss | December 2021 BC152886483958en-001001

Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Control Options

Response time, HDC 047/053, 060/068

HDC 047/053

Stroking direction 0.8 mm [0.03 in] orifice 1.3 mm [0.05 in] orifice No orifice

Neutral to full flow 1.6s 0.7s 0.4s Full flow to neutral 0.9s 0.4s 0.2s

HDC 060/068

Stroking direction 0.8 mm [0.03 in] orifice 1.3 mm [0.05 in] orifice No orifice

Neutral to full flow 2.1s 1s 0.5s Full flow to neutral 1.2s 0.5s 0.3s

Danfoss | December 2021 BC152886483958en-001001 | 23

P003 193

P003 189

C2C1

F00A

M14

T PF00B

100 %

“0“

100 %

Voltage V

Displacement

Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Control Options

Forward-Neutral-Reverse Control (FNR)

The 3-position FNR control options A9 (12 V) and B1 (24 V) uses an electric input signal to switch the pump to a full stroke position. A serviceable 125 μm screen is located in the supply line immediately before the control porting spool.

Under some circumstances, such as contamination, the control spool can stick and cause the pump to stay at some displacement.

Forward-Neutral-Reverse electric control (FNR)

FNR hydraulic schematic

Pump displacement vs. electrical signal

FNR control current

Voltage 12 V

Minimum current to stroke pump 750 mA 380 mA Pin connections any order

24 V

24 | © Danfoss | December 2021 BC152886483958en-001001

Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Control Options

Control response

H1T 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).

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, and charge pressure.

Δ p = 250 bar [3626 psi] Charge pressure = 20 bar [290 psi] Viscosity and temperature = 30 mm²/s [141 SUS] and 50 °C [122 °F] Speed = 1800 min-1 (rpm)

Response Time, FNR

Stroking direction Size combo 0.8 [0.03] orifice 1.3 [0.05] orifice No orifice

Neutral to full flow 045/053 1.8 s 0.9 s 0.5 s

060/068 2.7 s 1.3 s 0.8 s

Full flow to neutral 045/053 1.6 s 0.8 s 0.4 s

060/068 2.3 s 1.1 s 0.5 s

Danfoss | December 2021 BC152886483958en-001001 | 25

P003 192

P003 188

C2C1

F00A

M14

T PF00B

1 2

P003 480

Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Control Options

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.

A serviceable 170 μm screen is located in the supply line immediately before the control porting spool.

Under some circumstances, such as contamination, the control spool could stick and cause the pump to stay at some displacement.

NFPE control

NFPE schematic

Control signal requirements, NFPE 045/053 Tandem

Control current

Voltage a*mA b mA c mA Pin connections

12 V 870 1290 1550 any order 24 V 440 670 775

Factory test current, for vehicle movement or application actuation expect higher or lower value.

DEUTSCH connector, 2-pin

Connector ordering data

Description Quantity Ordering data

Mating connector 1 DEUTSCH DT06-2S Wedge lock 1 DEUTSCH W2S

26 | © Danfoss | December 2021 BC152886483958en-001001

Socket contact (16 and 18 AWG) 2 DEUTSCH 0462-201-16141 Danfoss mating connector kit 1 K29657

Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Control Options

Description 12 V 24 V

Maximum current 1800 mA 920 mA Nominal coil resistance @ 20 °C [68 °F] 3.66 Ω 14.20 Ω

@ 80 °C [176 °F] 4.52 Ω 17.52 Ω Inductance 33 mH 140 mH PWM signal frequency Range 70 – 200 Hz

Recommended IP Rating IEC 60 529 IP 67

DIN 40 050, part 9 IP 69K with mating connector Connector color Black

PWM signal required for optimum control performance.

Pump output flow direction vs. control signal

Shaft rotation CW CCW Coil energized

Port A in out out in Port B out in in out Servo port pressurized M5 M4 M5 M4

For coil location see Installation drawings.

100 Hz

C1 C2 C1 C2

Control response

H1T 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).

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, and charge pressure.

Δ p = 250 bar [3626 psi] Charge pressure = 20 bar [290 psi] Viscosity and temperature = 30 mm²/s [141 SUS] and 50 °C [122 °F] Speed = 1800 min-1 (rpm)

Response Time, NFPE

Stroking direction Size combo 0.8 [0.03] orifice 1.3 [0.05] orifice No orifice

Neutral to full flow 045/053 2.2 s 1.2 s 0.8 s

060/068 3.3 s 1.6 s 1.0 s

Full flow to neutral 045/053 1.5 s 0.7 s 0.4 s

060/068 1.9 s 0.8 s 0.4 s

Danfoss | December 2021 BC152886483958en-001001 | 27

P003 204

PTF00B

M14

F00A

Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Control Options

Manual Override (MOR)

All controls are available with a manual override functionality, either as a standard or as an option for temporary actuation of the control to aid in diagnostics.

Control with manual override

MOR schematic (EDC control shown)

Feedback from swash plate.

The MOR plunger has a 4 mm diameter and must be manually depressed to be engaged. Depressing the plunger mechanically moves the control spool which allows the pump to go on stroke. The MOR should be engaged anticipating a full stroke response from the pump.

An o-ring seal is used to seal the MOR plunger where initial actuation of the function will require a force of 45 N to engage the plunger. Additional actuation typically require less force to engage the MOR plunger.

Proportional control of the pump using the MOR should not be expected.

Warning

Unintended MOR operation will cause the pump to go into stroke; example: vehicle lifted off the ground. The vehicle or device must always be in a safe condition when using the MOR function.

Refer to control flow table for the relationship of solenoid to direction of flow.

28 | © Danfoss | December 2021 BC152886483958en-001001

-18° -13° -8°

100%

90%

80%

70%

60%

50%

40%

30%

20%

10%

Swashplate angle

Sensor output, % of supply voltage

-3° 0° 2° 7° 12° 17°

Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Control Options

Swashplate angle sensor for EDC controls

The angle sensor detects the swash plate position with an accuracy dependent upon the calibration effort done for the application and direction of rotation from the neutral position. At minimum the sensor can be used for forward, neutral and reverse (FNR) detection.

The sensor works on the hall-effect technology. The implemented technology is based on a measurement of the magnetic field direction in parallel to the chip surface. This field direction is converted to a voltage signal at the output.

Enhanced calibration of the non-linear behavior leads to more exact calculation of the pump swashplate angle. The 4-pin DEUTSCH connector is part of the sensor housing. The swashplate angle sensor is available for all EDC controls for 12 V and 24 V.

Swashplate angle vs. output of supply voltage

Warning

Strong magnetic fields in the proximity of the sensor can influence the sensor signal and must be avoided.

Contact your Danfoss representative in case the angle sensor will be used for safety functions.

Swash plate angle sensor parameters (EDC)

Parameter Minimum Typical Maximum Supply voltage range Supply protection Pump neutral output (% of supply voltage) Working range (swash plate angle) Required supply current Output current signal Working temperature

4.5 V

– – 18 V

– 50% –

–18° – 18°

– – 30 mA

– 9 mA 11 mA

–40 °C 80 °C 115 °C

Electrical Protection Standard Class

IP Rating IEC 60 529 IP 67

DIN 40 050, part 9 IP 69K with mating connector

EMC Immunity ISO 11452-2 100 V/m

Danfoss | December 2021 BC152886483958en-001001 | 29

5 V

5.5 V

ECU

Supply

Signal

GND

OUT

VCC

100 nF

20 kΩ

100 nF

Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Control Options

Calibration of the sensor output within the software is mandatory. Vehicle neutral thresholds in the software (±0.5°) are vehicle dependent and must consider different conditions, example: system temperature, system pressure and/or shaft speed.

For safety function: If the sensor fails (invalid signal <10% or >90% of supply voltage), it must be sure that the ECU will go into a diagnostic mode and shift into limited mode in order for the driver to take the full control or the mechanical breaks should be activated. Strong magnetic fields in the proximity of the sensor can influence the sensor signal and must be avoided.

Swash plate angle sensor connector

Connector DEUTSCH, 4-pin

Pin assignment:

1. Ground (GND)

2. Not connected

3. Output signal 1 (SIG 1)

4. Supply (V+)

Connector order numbers

Description Quantity Order number

Mating connector DEUTSCH DTM06-4S-E004 1 11105824 Wedge lock WM-4S 1 Socket contact 0462-201-2031 3 Mating connector kit 1 11212713

not available

Interface with ECU (EDC)

Interface with ECU diagram

30 | © Danfoss | December 2021 BC152886483958en-001001

P301 750

-25° -20° -15° -10° -5° 0° 5° 10° 15° 20° 25°

4.5

3.5

2.5

1.5

0.5

Swashplate angle

Output voltage (V)

Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Control Options

Swash Plate Angle Sensor for NFPE and AC2 Controls

The angle sensor detects the swash plate angle position and direction of rotation from the zero position. The swash angle sensor works on the AMR sensing technology. Under the saturated magnetic field, the resistance of the element varies with the magnetic field direction.

The output signal give a linear output voltage for the various magnet positions in the sensing range.

Swash plate angle vs. output voltage

Swash Plate Angle Sensor Parameters (NFPE/AC)

Parameter Minimum Typical Maximum Supply voltage range

Danfoss | December 2021 BC152886483958en-001001 | 31

Supply protection Supply current Output current (Signal 1, 2) Short circuit output current to supply or GND Sensitivity

4.75 V 5 V 5.25 V

– – 28 V

– 22 mA 25 mA

– 0.1 mA –

– – 7.5 mA

70.0 mV/deg 78.0 mV/deg 85.8 mV/deg

ECU

V+

Sig1

Sig2

Gnd

340R 340R

Out 2

Out 1

VCC

Gnd

340R340R

0.1uF

5.6 nF

Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Control Options

Parameter Minimum Typical Maximum Working range (swash plate angle) Correlation between signals 1 and 2

Up to duration of 2.5 seconds at 25°C

Signal 1 (nominal) is lower than signal 2 (redundant)

Swash-plate Angle Sensor Connector (NFPE/AC2)

–18° 0° 18°

475 mV 500 mV 525 mV

Connector DEUTSCH, 4-pin

Pin assignment:

1. Ground (GND)

2. Output Signal 2 (SIG2) – Secondary (redundant)

3. Output signal 1 (SIG 1)

4. Supply (V+)

Connector order numbers

Description Quantity Order number

Mating connector DEUTSCH DTM06-4S-E004 1 11105824 Wedge lock W4S 1 11084558 Socket contact DEUTSCH 0462-201-16141 (16–18 AWG) 2 K02325

Interface with ECU (NFPE)

Minimum recommended load resistance is 100 kΩ.

32 | © Danfoss | December 2021 BC152886483958en-001001

P106 148E

MBMC

Flow out C

Flow out A

Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Control Options

Control-Cut-Off (CCO) and Brake Release Valves

The H1 tandem pumps offer an optional Control-Cut-Off valve integrated into the pump center section and a separate brake release valve allowing the controls to be activated before activating any auxiliary functions.

The CCO valve shunts charge pressure from the pump controls allowing the servo springs to de-stroke both pumps. The valve is normally open for fail-safe operation. The solenoid must be energized for the pump to operate. When the machine control circuits energize the CCO solenoid, it connects charge supply from the charge gallery to the pump controls.

The 045/053 tandem also supplies charge pressure to the port X7 for auxiliary operation of devices such as spring applied/pressure released brakes. The control cut off valve also shunts pressure away from port X7.

The 060/068 tandem offers a separate brake release valve that operates independently of the CCO valve allowing the controls to be activated before activating any auxiliary functions. When the 60/68 brake valve is deactivated the X7 port shunts to case.

045/053 Tandem

Danfoss | December 2021 BC152886483958en-001001 | 33

B MB

H1 Tandem

ccw

flow out B flow out D

C1 C2

M14

C1C2

M14

1 2

Supply/Ground

CONTROL SOLENOID C1

Ground/Supply

1 2

Supply/Ground Ground/Supply

CONTROL SOLENOID C2

1 2

Supply/Ground

CONTROL SOLENOID C2

Ground/Supply

1 2

Supply/Ground Ground/Supply

CONTROL SOLENOID C1

Supply/Ground

Ground/Supply

CCO SOLENOID

Supply/Ground

Ground/Supply

BRAKE SOLENOID

P109541

1 2

Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Control Options

060/068 Tandem

Solenoid data

Description 12 V 24 V Minimum supply voltage Maximum supply voltage (continuous) IP Rating IEC 60 529

DIN 40 050, part 9

Pin connector

For additional information, please contact Danfoss.

9 V

16 V

IP 67

IP 69K with mating connector

any order

18 V

32 V

34 | © Danfoss | December 2021 BC152886483958en-001001

P003 266

Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Control Options

Displacement Limiter

H1 pumps are designed with optional mechanical displacement (stroke) limiters factory set to max. displacement. The maximum displacement of the pump can be set independently for forward and reverse using the two adjustment screws to mechanically limit the travel of the servo piston down to 50% displacement.

Adjustments under operating conditions may cause leakage. The adjustment screw can be completely removed from the threaded bore if backed out to far.

Displacement change (approximately)

Parameter Size 045 Size 053 Size 060 Size 068

1 Turn of displacement limiter screw

Internal wrench size External wrench size Torque for external hex seal lock

nut

5.1 cm3 [0.31 in3] 6.0 cm3 [0.37 in3] 5.9 cm3 [0.36 in3] 6.6 cm3 [0.40 in3]

4 mm

13 mm

23 N•m [204 lbf•in]

For more information, see H1 Axial Piston Pumps, Service Manual, AX152886482551, the section “Displacement Limiter Adjustment”.

Danfoss | December 2021 BC152886483958en-001001 | 35

M14

AM3

Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Port Locations

Port Locations H1T 045/053 Tandem

Mounting flange, shaft and connector surfaces to be paint free.

Ports description, ISO 11926-1

Ports Description Sizes

A, B, C, D System ports: A, B, C and D; Ø48.5 max. clearance for fitting 15∕16 –12 MA, MB, MC, MD System gauge ports A, B, C and D; Ø28 max. clearance for fitting E Charge filtration inlet port from filter; Ø36 max. clearance for fitting L3 Case drain port; Ø48.5 max. clearance for fitting

M3 Charge gauge / constr. port; Ø28 max. clearance for fitting M4, M5 Servo gauge ports; Ø24.5 max. clearance for fitting M14 Case gauge port; Ø21 max. clearance for fitting (EDC, MDC, FNR, NFPE) AM3 Alternate charge pressure port

∕16 – 18

∕8 –14

11∕16 –12

∕16 – 18

∕16 – 20

∕16 –18

36 | © Danfoss | December 2021 BC152886483958en-001001

4x Connector: Deutsch DT04-2P

M14

Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Port Locations

Port Locations H1T 045/053 Tandem

Mounting flange, shaft and connector surfaces to be paint free.

Ports description, ISO 11926-1

Ports Description Sizes

MA, MB, MC, MD System gauge ports A, B, C and D; Ø28 max. clearance for fitting M3, Mx Charge gauge / constr. port; Ø28 max. clearance for fitting M4, M5 Servo gauge ports; Ø24.5 max. clearance for fitting M14 Case gauge port; Ø21 max. clearance for fitting (EDC, MDC, FNR, NFPE)

Please contact Danfoss representative for specific installation drawings.

∕16 – 18

∕16 – 20

Danfoss | December 2021 BC152886483958en-001001 | 37

M14

AM3

Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Port Locations

Port Locations H1T 060/068 Tandem

Ports description, ISO 11926-1

Ports Description Size

∕16 – 18

∕16 – 20

/16 – 18

A, B, C, D System ports: A, B, C and D Split flange, M12 x 1.75 MA, MB, MC, MD System gauge ports A, B, C and D E Charge filtration inlet port from filter 11∕16 –12 L1, L3 Case drain port 15∕16 –12 M3, Mx Charge gauge / constr. port M4, M5 Servo gauge ports M14 Case gauge port; (EDC, MDC, FNR, NFPE) AM3 Alternate charge pressure port

38 | © Danfoss | December 2021 BC152886483958en-001001

Shaft L

P003 314

Shaft L

A-A (4x)

C-C

B-B

19.8 ±2.1

[0.78 ±0.083]

41.0 ±1.0

[1.61 ±0.04]

136.2 ±1.0 [5.36 ±0.04] both sides

247.44 ±1.0 [9.74 ±0.04] both sides

167.82 ±1.0 [6.61 ±0.04]

174.82 ±1.0 [6.88 ±0.04]

208.82 ±1.0 [8.22 ±0.04]

342.64 ±1.0

[13.49 ±0.04]

406.0 max. [15.98]

R 0.8 max.

[0.031]

45°±5°

391.5 max. [15.41]

1.0 ±0.5

[0.04 ±0.02]

85.5 ±1.0

[3.37 ±0.04]

85.5 ±1.0

[3.37 ±0.04]

91.2 ±1.0

[3.59 ±0.04]

9.7 0 – 0.5

[0.38

– 0.02

]

∅101.6

– 0.05

[4.0

– 0.002

]

3.35 ±1.0 [0.13 ±0.04]

110.5 ±1.0

[4.35 ±0.04]

100.0 ±1.0

[3.94 ±0.04]

89.0 ±1.0

[3.5 ±0.04]

2x 74.4 ±1.0

[2.93 ±0.04]

39.5 ±1.0 [1.56 ±0.04]

52.85 ±1.0

[2.08 ±0.04]

(2x)

Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Dimensions

Dimensions H1T 045/053 Tandem

L3 case drain port must be used (see the section Case drain on page 9 for more details).

Please contact Danfoss representative for specific installation drawings.

Danfoss | December 2021 BC152886483958en-001001 | 39

P109517

Shaft l

191.8 ±1.2

216.3 ±1.2

183.3 ±1.2

166.9 ± 0.5

5.0

± 0.3

∅

14.5 ±0.7

95 ± 0.8

4x 64.2 ±0.8

37.5 ±0.8

25.3 ±0.5

5.6 ±0.3

( 193 )

2x 75 ±1.5

81.5 ±1.0

2x 25.0 ±1.0

( 37 )

( 117.2 )

325.7 ±1.0

58 ±0.8

D-D

206 ±2.5

2x 173.3 ± 2.5

87 ± 3

173.8 ±1.2

100 ± 0.8

Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Dimensions

Notes in the drawing:

a – Approximate center of gravity b – Lifting holes weight limit not to exeed 75 kg [165 lb]

Please contact Danfoss representative for specific installation drawings.

40 | © Danfoss | December 2021 BC152886483958en-001001

P109518

380 ±1.2

2x 73.0 ±0.25

2x 25 ± 0.5

37 ± 0.8

18 min.

172.7 ±1.2

208.5 ±1.2

M12 x 1.75 - 6H Thd.

∅15.1

+0.25

-0.13

CCW

E-E

84 ± 0.8

Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Dimensions

Mounting bolt holes are sized for 14 mm fasteners. M12 or ½ inch can be used, but require a hardened washer.

Please contact Danfoss representative for specific installation drawings.

Danfoss | December 2021 BC152886483958en-001001 | 41

459.3 ±4

445.7 ±4

343.2 ±1.2

303.6 ±1.2 (2x)

285.7 ±1.2 (2x)

243.2 ±1.2 (2x)

189.7 ±1.2 (2x)

149.3 ±1.2 (2x)

13.9 ±0.25 (4x)

131.3 ±1.2 (2x)

71.8 ±0.8 16 ±0.25 (4x)

12.25 ±0.25

184.7 ±1.2

(242.5)

(255.7)

147.9 ±1.2 (4x) 117 ±0.8 (4x)

110 ±0.8

75 ±0.8 (2x)

65 (2x)

28.6 ±0.25 (4x)

363.2 ±1.2

250.2 ±1.2

191.7 ±1.2

91.8 ±0.8

(179.2)

(192.5)

110 ±0.8

(145.4)

(65)

75 ±0.8 (2x)

28.6 ±0.25 (4x)

245.2 ±1.2 (2x)

13.9 ±0.25 (4x)

365.7 ±1.2 (255.7) (2x)

240.2 ±1.2 (197.2) (2x)

69.2 ±0.8

64.2 ±1.260 ±1.2

194.7 ±1.2

35 (4x)

100 ±0.8

System ports

A and B

60 ±0.8 (2x)

System ports

C and D

189.7 ±1.2

245.2 ±1.2

Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Dimensions

Dimensions H1T 060/068 Tandem

42 | © Danfoss | December 2021 BC152886483958en-001001

30.6 ±0.15 [1.2 ±0.01]

8.0 ±0.8

[0.31 ±0.03]

48.0 ±0.68

[1.89 ±0.03]

Coupling must not protrude beyond

this point

Spline data Number of teeth : 14

Pitch fraction : 12/24 Pressure angle : 30° Pitch-Ø : 29.634 [1.167] Typ of fit : Fillet root side per : Ansi B92.1b class 6e

Ø31.58 ±0.08

[1.24 ±0.003]

Ø25.84 max.

[1.02]

Mounting flange surface Flange 101 - 2 per ISO 3019-1

to be paint free

Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Dimensions

Input shaft, option G1 (SAE C, 14 teeth) (045/053/060/068)

Option G1

Specifications

Option Spline Min. active spline length Torque rating

Minimum active spline length for the specified torque ratings.

For definitions of maximum and rated torque values, refer to Basic Information BC152886483968, section Shaft

Torque Ratings and Spline Lubrication.

Rated Maximum

14 teeth, 12/24 pitch

30.6 mm [1.205 in]

534 N•m [4720 lbf•in]

592 N•m [5240 lbf•in]

Danfoss | December 2021 BC152886483958en-001001 | 43

22.0 ±0.15

[0.87 ±0.01]

8.0 ±0.8

[0.31 ±0.03]

38.0 ±0.68

[1.5 ±0.03]

Coupling must not protrude beyond

this point

Spline data Number of teeth : 15

Pitch fraction : 16/32 Pressure angle : 30° Pitch-Ø : 23.813 [0.938] Typ of fit : Fillet root side per : Ansi B92.1b class 6e

Ø25.23 ±0.08

[0.99 ±0.003]

Ø22.62 max.

[0.89]

Mounting flange surface Flange 101 - 2 per ISO 3019-1

to be paint free

Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Dimensions

Input shaft, option G5 (SAE B-B, 15 teeth) (045/053 only)

Option G5

Specifications

Option Spline Min. active spline length Torque rating

Minimum active spline length for the specified torque ratings.

For definitions of maximum and rated torque values, refer to Basic Information BC152886483968, section Shaft

Torque Ratings and Spline Lubrication.

Rated Maximum

15 teeth, 16/32 pitch

22 mm [0.866 in]

277 N•m [2450 lbf•in]

370 N•m [3270 lbf•in]

44 | © Danfoss | December 2021 BC152886483958en-001001

Flange 101-2

Mounting flange

Per ISO 3019-1 (SAE J744

∅74.3 min. dia. for

coupling clearance

∅31.56 ±0.09

8 ±0.8

34.8

±0.15

49 ±0.68

Spline data Number of teeth : 19 Pitch fraction : 16/32 Pressure angle : 30° Pitch∅ : ∅30.169 Type of fit : Fillet root side Per : ANSI B92.1b CLASS 6e

∅27 .7

±0.12

Paint free

Mating couling must not protrude beyond this point

Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Dimensions

Input shaft, option G6, (19 teeth-long) (045/053 only)

Option G6, 045/053

Specifications

Option Spline Min. active spline length Torque rating

Rated Maximum

Minimum active spline length for the specified torque ratings.

For definitions of maximum and rated torque values, refer to Basic Information BC152886483968, section Shaft

Torque Ratings and Spline Lubrication.

19 teeth, 16/32 pitch

34.8 mm [1.370 in]

563 N•m [4980 lbf•in]

732 N•m [6478 lbf•in]

Danfoss | December 2021 BC152886483958en-001001 | 45

Flange 127-4 Mounting flange Per ISO 3019-1 (SAE C)

∅74.2 max

coupling diameter

∅31 ±0.12

8 ±0.8

34.5

±0.15

48 ±0.5

Spline data Number of teeth : 21 Pitch fraction : 16/32 Pressure angle : 30° Pitch∅ : ∅33.33750 Type of fit : Fillet root side Per : ANSI B92.1-1996 CLASS 6

∅29 .4

±0.12

Paint free

Mating couling must not protrude beyond this point

P109575

Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Dimensions

Input shaft, option F1, (060/068 only)

Option F1, ISO 3019-1, outer dia 32 mm-4 (SAE C, 21 teeth)

Specifications

Option Spline Min. active spline length Torque rating

Rated Maximum

Minimum active spline length for the specified torque ratings.

For definitions of maximum and rated torque values, refer to Basic Information BC152886483968, section Shaft

Torque Ratings and Spline Lubrication.

21 teeth, 16/32 pitch

31.5 mm [1.358 in]

760 N•m [6730 lb•in]

1137 N•m [10060 lb•in]

46 | © Danfoss | December 2021 BC152886483958en-001001

P003 214E

8.1 ±0.25

[0.32 ±0.01]

1.96 ±0.08

[0.08 ±0.003]

2x 53.2 ±0.18

[2.09 ±0.01]

2x 106.4 ±0.35

[4.19 ±0.01]

R 0.8 max. [0.031]

12.7 min. [0.5]

391.5 max [15.41]

O-ring seal required ref 82.22 [3.237] I.D.

x 2.62 [0.103] cross section

4x M10 x 1.5 -6H Thd.

17.0 [0.67] min. Thd. depth

Spline data Number of teeth : 9

Pitch fraction : 16/32 Pressure angle : 30° Pitch- ∅ : 14.288 [0.5625] Typ of fit : Fillet root side per : Ansi B92.1b class 7h

33.6 min [1.323] Shaft clearance

Mounting flange surface Flange 82 - 2 per ISO 3019-1

to be paint free

∅88.62

+0.13

0 [3.49

+0.01

]

∅

82.6

+0.08

[3.25

+0.003

]

Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Dimensions

Auxiliary mounting pads

Option H2 (SAE A, 9 teeth) 045/053

Option H2, ISO 3019-1, flange 82-2 (SAE A, 9 teeth)

Specifications

Option Spline Maximum torque

For definitions of maximum and rated torque values, refer to Basic Information BC152886483968, section Shaft

Torque Ratings and Spline Lubrication.

9 teeth, 16/32 pitch

162 N•m [1430 lbf•in]

Caution

Standard pad cover is installed only to retain coupling during shipping. Do not operate pump without an auxiliary pump or running cover installed.

Danfoss | December 2021 BC152886483958en-001001 | 47

P003 540E

8.1 ±0.25

[0.32 ±0.01]

1.96 ±0.08

[0.08 ±0.003]

2x 53.2 ±0.18

[2.09 ±0.01]

2x 106.4 ±0.35

[4.19 ±0.01]

R 0.8 max. [0.031]

12.7 min. [0.5]

391.5 max [15.41]

O-ring seal required ref 82.22 [3.237] I.D. x 2.62 [0.103] cross section

4x M10 x 1.5 -6H Thd.

17.0 [0.67] min. Thd. depth

Spline data Number of teeth : 11 Pitch fraction : 16/32 Pressure angle : 30° Pitch-∅ : 17.4625 [0.6875] Typ of fit : Fillet root side per : Ansi B92.1b class 7h

41.6 min [1.638] Shaft clearance

Mounting flange surface Flange 82 - 2 per ISO 3019-1 to be paint free

∅88.62

+0.13

[3.49

0.01

]

∅82.6

+0.08

[3.25

+0.003

]

Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Dimensions

Option H1 (SAE A, 11 teeth) 045/053

Option H1, ISO 3019-1, Flange 82-2 (SAE A, 11 Teeth)

Specifications

Torque Ratings and Spline Lubrication.

Standard pad cover is installed only to retain coupling during shipping. Do not operate pump without an auxiliary pump or running cover installed.

Option Spline Maximum torque

11 teeth, 16/32 pitch

296 N•m [2620 lbf•in]

For definitions of maximum and rated torque values, refer to Basic Information BC152886483968, section Shaft

Caution

48 | © Danfoss | December 2021 BC152886483958en-001001

P109592

∅107.82 ± 0.12

[4.24 ± 0.005]

11.4 ± 0.25

[0.45 ± 0.01]

R 0.8 max. [0.031]

12.7 max. [0.5]

391.5 max. [15.41]

Spline data Number of teeth : 13

Pitch fraction : 16/32 Pressure angle : 30° Pitch-∅ : 20.638 [0.8125] Typ of fit : Fillet root side per : Ansi B92.1b class 7h

O-ring seal required Ref 94.92 [3.737] I.D. x 2.62 [0.103] cross section

Mounting flange surface Flange 101 - 2 per ISO 3019-1

to be paint free

4x M12 x 1.75 -6H Thd.

18.0 [0.71] min. Thd. depth

2x 73.0 ±0.18

[2.87 ±0.01]

2x 146.0 ±0.35

[5.75 ±0.01]

∅101.65

+0.08

[4.0

+0.003

]

1.96 ±0.08

[0.08 ±0.003]

42.6 min [1.677]

Shaft clearance

Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Dimensions

Option H3 (SAE B, 13 teeth) 045/053

Option H3, ISO 3019-1, Flange 101-2 (SAE B, 13 Teeth)

Specifications

Option Spline Maximum torque

Torque Ratings and Spline Lubrication.

Standard pad cover is installed only to retain coupling during shipping. Do not operate pump without an auxiliary pump or running cover installed.

13 teeth, 16/32 pitch

395 N•m [3500 lbf•in]

For definitions of maximum and rated torque values, refer to Basic Information BC152886483968, section Shaft

Caution

Danfoss | December 2021 BC152886483958en-001001 | 49

P109521

11.4 ± 0.25

73 ± 0.175

2x 146 ± 0.35

R 0.8 max.

O-ring seal required ref 94.92 I.D. 11.4 ± 0.25

cross section

4x M12 x 1.75 -6H thd. 18 full thd. depth

Spline data Number of teeth : 13

Pitch fraction : 16/32 Pressure angle : 30° Pitch- ∅ : 20.638 Typ of fit : Fillet root side per : Ansi B92.1b class 7

14.4 min.

Shaft clearance

Aux. mounting pad mating flange 101 - 2

∅107.82

+0.13

459.4 ± 4

445.7 ± 4

Mounting shaft shoulder must not protrude beyond this point

Mating shaft must not protrude beyond this point

42.9 min.

Shaft clearance

1.956 ± 0.076

∅101.65

+0.076

paint free

per ISO 3019-1 (SAE J744 B)

45 ± 0.8

2x M12 x 1.75 -6H thd. thd. depth thru

Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Dimensions

Option H3 (SAE B, 13 teeth) 060/068

Option H3, ISO 3019-1, Flange 101-2 (SAE B, 13 Teeth)

Specifications

Option Spline Maximum torque

For definitions of maximum and rated torque values, refer to Basic Information BC152886483968, section Shaft

Torque Ratings and Spline Lubrication.

13 teeth, 16/32 pitch

395 N•m [3500 lbf•in]

P003 541E

∅107.82 ± 0.12

[4.24 ± 0.005]

11.4 ± 0.25

[0.45 ± 0.01]

R 0.8 max. [0.031]

12.7 max. [0.5]

391.5 max. [15.41]

Spline data Number of teeth: 15 Pitch fraction : 16/32 Pressure angle : 30° Pitch-∅ : 23.813 [0.9375] Typ of fit : Fillet root side per : Ansi B92.1b class 7h

O-ring seal required Ref 94.92 [3.737] I.D. x 2.62 [0.103] cross section

Mounting flange surface Flange 101 - 2 per ISO 3019-1 to be paint free

4x M12 x 1.75 -6H Thd.

18.0 [0.71] min. Thd. depth

2x 73.0 ±0.18

[2.87 ±0.01]

2x 146.0 ±0.35

[5.75 ±0.01]

∅101.65

+0.08

[4.0

0.003

]

1.96 ±0.08

[0.08 ±0.003]

47.6 min [1.874] Shaft clearance

Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Dimensions

Option H5 (SAE B-B, 15 teeth) 045/053

Option H5, ISO 3019-1, Flange 101-2 (SAE B-B, 15 Teeth)

Specifications

Option Spline Maximum torque

For definitions of maximum and rated torque values, refer to Basic Information BC152886483968, section Shaft

Torque Ratings and Spline Lubrication.

15 teeth, 16/32 pitch

405 N•m [3580 lbf•in]

Caution

Standard pad cover is installed only to retain coupling during shipping. Do not operate pump without an auxiliary pump or running cover installed.

Danfoss | December 2021 BC152886483958en-001001 | 51

P109522

11.4 ± 0.25

R 0.8 max.

O-ring seal required ref 94.92 I.D. x 2.62

cross section

Spline data Number of teeth : 15

Pitch fraction : 16/32 Pressure angle : 30° Pitch- ∅ : 23.813 Typ of fit : Fillet root side per : Ansi B92.1b class 7h

Aux. mounting pad

mating flange 101 - 2

∅107.82

+0.13

459.4 ± 4

445.7 ± 4

Mounting shaft shoulder must not protrude beyond this point Mating shaft must not protrude beyond this point

Shaft clearance

52.6 min.

14.4 min.

Shaft clearance

1.956 ± 0.076

∅101.65

+0.076

paint free

per ISO 3019-1 (SAE J744 B)

73 ± 0.175

2x 146 ± 0.35

4x M12 x 1.75 -6H thd. 18 full thd. depth

45 ± 0.8

2x M12 x 1.75 -6H thd. thd. depth thru

Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Dimensions

Option H5 (SAE B-B, 15 teeth) 060/068

Option H5, ISO 3019-1, Flange 101-2 (SAE B-B, 15 Teeth)

Specifications

Option Spline Maximum torque

For definitions of maximum and rated torque values, refer to Basic Information BC152886483968, section Shaft

Torque Ratings and Spline Lubrication.

15 teeth, 16/32 pitch

592 N•m [5240 lbf•in]

Caution

Standard pad cover is installed only to retain coupling during shipping. Do not operate pump without an auxiliary pump or running cover installed.

Shaft L

Mounting flange

4x Connections : Deutsch DT04-2P

P109544

103.1 ±1.5 [4.0591 ±0.0591]

69.2 ± 0.8

[2.7244 ±0.315]

365.78 ± 1.2

[14.4009 ±0.0472]

173.86 ± 2.5 [6.8449 ± 0.0984]

304.69 ± 1.2

[11.9958 ± 0.0472]

130.29 ± 1.2

[5.1295 ±0.0472]

147.86 ± 1.2 [5.8213 ± 0.0472]

Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Dimensions

060/068 Control dimensions

Electric Displacement Control (EDC), option A2 (12V) / A3 (24V) (060/068)

2x Case gauge port M14: ISO 11926-1 – 7/16 -20; Ø21.0 max clearance dia for fitting 4x Connectors Deutsch DT04-2P to be paint free

Please contact Danfoss representative for specific installation drawings.

Danfoss | December 2021 BC152886483958en-001001 | 53

Shaft L

Mounting flange

P109545

172.36 ± 1.2 [6.7858 ± 0.0472]

374.48 ± 1.2

[14.7435 ± 0.472]

369.28 ± 1.2

[14.5387 ±0.0472]

341.88 ± 1.2

[13.46 ± 0.472]

93.1 ± 0.8

[3.6654 ± 0.315]

60.5 ± 0.8

[2.3819 ± 0.315]

42.7 ± 0.8

[1.6811 ± 0.315]

65.7 ± 0.8

[2.5866 ± 0.315]

392.28 ± 1.2

[15.4443 ±0.0472]

215.26 ± 2.5 [8.4748 ± 0.0984]

Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Dimensions

Manual Displacement Control (MDC), option M1 (060/068)

Please contact Danfoss representative for specific installation drawings.

Shaft L

Mounting flange

4x Connections : Deutsch DT04-2P

P109546

103.1 ±1.5 [4.0591 ±0.0591]

69.2 ± 0.8

[2.7244 ±0.315]

365.78 ± 1.2

[14.4009 ±0.0472]

173.86 ± 2.5 [6.8449 ± 0.0984]

304.69 ± 1.2

[11.9958 ± 0.0472]

130.29 ± 1.2

[5.1295 ±0.0472]

147.86 ± 1.2 [5.8213 ± 0.0472]

Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Dimensions

Forward-Neutral-Reverse (FNR) with MOR, option A9 (12 V)/ B1 (24 V) (060/068)

2x Case gauge port M14: ISO 11926-1; 7∕16–20; Ø21.0 max clearance dia for fitting. 4x Connectors Deutsch DT04-2P to be paint free.

Please contact Danfoss representative for specific installation drawings.

Danfoss | December 2021 BC152886483958en-001001 | 55

Shaft L

Mounting flange

4x Connections : Deutsch DT04-2P

176.0 max

[6.93]

P003 331E

120.05 ±1.0 [4.73 ±0.04]

263.59 ±1.0

[10.38 ±0.04]

147.26 ±1.0

[5.8 ±0.04]

2x 64.2 ±1.0

[2.53 ±0.039]

2x 64.2 ±1.0

[2.53 ±0.039]

58.0 ±1.0

[2.28 ±0.04]

2x M14

325.7 ±1.0

[12.82 ±0.04]

Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Dimensions

045/053 Control dimensions

Electric Displacement Control (EDC), option A2 (12V) / A3 (24V) H1T (045/053)

2x Case gauge port M14: ISO 11926-1 – 7/16 -20; Ø21.0 max clearance dia for fitting 4x Connectors Deutsch DT04-2P to be paint free

Please contact Danfoss representative for specific installation drawings.

Shaft l

Mounting flange

4x Connections : Deutsch DT04-2P

176.0 max

[6.93]

P003 212E

147.26 ±1.0

[5.8 ±0.04]

120.05 ±1.0 [4.73 ±0.04]

263.59 ±1.0

[10.38 ±0.04]

2x 64.2 ±1.0

[2.53 ±0.039]

58.0 ±1.0

[2.28 ±0.04]

2x 64.2 ±1.0

[2.53 ±0.039]

325.7 ±1.0

[12.82 ±0.04]

2x M14

Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Dimensions

Electric Displacement Control (EDC) with MOR, option A4 (12 V) / A5 (24 V) H1T (045/053)

2x Case gauge port M14: ISO 11926-1 – 7/16 -20; Ø21.0 max clearance dia for fitting 4x Connectors Deutsch DT04-2P to be paint free

Please contact Danfoss representative for specific installation drawings.

Danfoss | December 2021 BC152886483958en-001001 | 57

70128329-D08

Mounting flange

2x 31.5±0.8

49.3±0.8

2x 54.5±0.8

81.9±0.8

301.8±1.2

334.4±1.2

2x 352.2 ±1.2

2x 329.2 ±1.2

4x 22±0.5

2x 9.6

2 x 214.7 ±2.5

2 x 171.8 ±1.2

4x 24±0.5

Control

handle

shaft

Shaft

8x M6x1-6H thd. 9 min. full thd. depth paint free

Case gauge port M14 ISO 11926-1 -7/16-20

Shaft

2x7.5±1°

6x11

-0.02

-0.08

Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Dimensions

Manual Displacement Control (MDC), option M1, H1T (045/053)

Please contact Danfoss representative for specific installation drawings.

70128329-D09

Mounting flange

2x 31.5±0.8

49.3±0.8

2x 54.5±0.8

81.9±0.8

301.8±1.2

334.4±1.2

2x 352.2 ±1.2

2x 329.2 ±1.2

4x 22±0.5

2x 9.6

2 x 214.7 ±2.5

2 x 171.8 ±1.2

4x 24±0.5

2x7.5±1°

6x11

-0.02

-0.08

8x M6x1-6H thd. 9 min. full thd. depth

paint free Case gauge port M14

ISO 11926-1 -7/16-20

Case gauge port M14 ISO 11926-1 -7/16-20

Control handle shaft

2x Neutral Start Switch connector Deutsch DT04-2P paint free

Shaft

Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Dimensions

Manual Displacement Control (MDC) with NSS, option M2, H1T (045/053)

H1 Tandem 045/053 Manual Displacement Control (MDC) with NSS, option M2

Neutral Start Switch connector:

Pin Assignment Pin Assignment

1 Supply OR 1 Ground 2 Ground 2 Supply

Please contact Danfoss representative for specific installation drawings.

Danfoss | December 2021 BC152886483958en-001001 | 59

70128329-D10

Mounting flange

2x 31.5±0.8

49.3±0.8

2x 54.5±0.8

81.9±0.8

301.8±1.2

334.4±1.2

2x 352.2 ±1.2

2x 329.2 ±1.2

4x 22±0.5

2x 9.6

2 x 214.7 ±2.5

2 x 171.8 ±1.2

4x 24±0.5

2x7.5±1°

6x11

-0.02

-0.08

8x M6x1-6H thd. 9 min. full thd. depth

paint free

Case gauge port M14

ISO 11926-1 -7/16-20

Case gauge port M14 ISO 11926-1 -7/16-20

Control handle shaft

Neutral Start Switch connector Deutsch DT04-2P paint free

Shaft

Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Dimensions

Manual Displacement Control (MDC) with NSS, option D9, H1T (045/053)

H1 Tandem 045/053 Manual Displacement Control (MDC) with NSS, option D9

Neutral Start Switch connector:

Pin Assignment Pin Assignment

1 Supply OR 1 Ground 2 Ground 2 Supply

Please contact Danfoss representative for specific installation drawings.

176.0 max

[6.93]

P003 211E

Shaft l

147.26 ±1.0

[5.8 ±0.04]

4x Connectors: Deutsch DT04-2P

120.05 ±1.0 [4.73 ±0.04]

263.59 ±1.0

[10.38 ±0.04]

Mounting flange

91.95

[3.62]

Shaft l

209.0 max

[8.228]

2x 64.2 ±1.0

[2.528 ±0.039]

2x 64.2 ±1.0

[2.528 ±0.039]

58.0 ±1.0

[2.28 ±0.04]

325.7 ±1.0

[12.82 ±0.04]

2x M14

Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Dimensions

Forward-Neutral-Reverse (FNR) with MOR, option A9 (12 V) / B1 (24 V) H1T (045/053)

2x Case gauge port M14: ISO 11926-1; 7∕16–20; Ø21.0 max clearance dia for fitting. 4x Connectors Deutsch DT04-2P to be paint free.

Please contact Danfoss representative for specific installation drawings.

Danfoss | December 2021 BC152886483958en-001001 | 61

4x 87.4 ± 0.8

“A” ± 0.8

Mounting flange

Shaft clearance

“B” ± 1.2

2x “C” ± 1.2

2x “D” ± 0.8

2x “F” ± 2.5

4x “E” ±1.2

Shaft centerline

Mounting flange

Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Dimensions

HDC, Options: T1, T2

Ports

Item Description

1 Control signal pressure inlet port "X1"

2 Control signal pressure inlet port "X2"

3 Case gauge port "M14"

Dimensions in mm [in]

Size A B C D E F

H1T 45/53 58 [2.3] 325.7 [12.8] 291.7 [11.5] 92 [3.6] 147.3 [5.8] 173.3 [6.8] H1T 60/68 69.2 [2.7] 365.8 [14.4] 331.8 [13.1] 103.2 [4.1] 147.9 [5.8] 173.9 [6.8]

Port ISO 11926-1 - 9/16-18UNF-2B

Port ISO 11926-1 - 7/16-20UNF-2

P003 203E

Center coupling

Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Dimensions

Center section coupling, torque rating

Torque rating for center section coupling

Maximum torque for center coupling

Model Max. torque

045/053 405 N•m [3580 lbf•in] 060/068 592 N•m [5040 lbf•in]

For definitions of maximum and rated torque values, refer to Basic Information BC152886483968, section Shaft Torque Ratings and Spline Lubrication.

Danfoss | December 2021 BC152886483958en-001001 | 63

100 ± 0.8

P109524

Connector Deutsch DT04-2P

128.7 ±1.2

159 ± 2.5

( 117.2 )

64.7 ± 2.5

214.3 ± 2.5

173.8 ± 1.2

191.8 ± 1.2

5 ± 0.3

37.5 ± 0.8

173.1 ± 1.2

AM3

214.3 ± 1.2

183.3 ± 1.2

216.3 ± 1.2

25.3 ± 0.5

12.8 ± 0.5

Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Dimensions

Control Cut Off (CCO)

045/053 CCO

Mounting flange, shaft and connector surfaces to be paint free.

Ports description, ISO 11926-1

Ports Description Size MB, MC System gauge ports B, C; Ø28 max. clearance for fitting

AM3 Charge constr. port; Ø28 max. clearance for fitting X7 Brake gauge port M3 Charge Gauge Port

∕16 – 18

∕16 –18

Please contact Danfoss representative for specific installation drawings.

110 ± 0.8

P109525

Connector

Deutsch DT04-2P

13.9 ± 0.25

174.5 ± 2.5 ( 131.7 )

75 ± 0.8

171.5 ± 2.5

184.7 ± 1.2

81.1 ± 2.5

60 ± 0.8

189.7 ± 1.2

250.2 ± 1.2

189.7 ± 1.2

13.9 ± 0.25

28.6 ± 0.25

75 ± 0.8

28.6 ± 0.25

243.2 ± 1.2

194.7 ± 1.2

245.2 ± 1.2

60 ± 0.8

35 ± 0.8

144.2 ± 1.2

159.5 ± 2.5

245.2 ± 1.2

Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Dimensions

060/068 CCO

Mounting flange, shaft and connector surfaces to be paint free.

Ports description, ISO 11926-1

Ports Description Size

A, B, C, D System ports Split flange,

MA, MD System gauge ports A, D

M12 x 1.75

∕16 – 18 E Charge inlet port 11∕16 – 12 X7 Brake gauge port M3 Charge Gauge Port

∕4 –16

∕16 –18

Please contact Danfoss representative for specific installation drawings.

Danfoss | December 2021 BC152886483958en-001001 | 65

P109539

Technical Information

H1T 045/053/060/068 Axial Piston Tandem Pumps

Dimensions

Displacement limiter, H1 Tandem, option B

045/053 shown

Description Wrench size

Seal nut

Adjustment screw 4 mm internal hex

13 mm external hex 23 Nm [17 lbf•ft]

Dimensions

045/053 060/068

A 277.4 ± 1.2 314 ± 1.2 B 106.2 ± 0.8 120 ± 1.2 C 74.4 ± 0.8 79.5 ± 0.8 D (116.1) 128.2

Please contact Danfoss representative for specific installation drawings.

Torque

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:

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www.hydro-gear.com

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www.daikin-sauer-danfoss.com

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valves Electric converters

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PLUS+1® displays

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PLUS+1® joysticks and

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pedals PLUS+1® operator

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interfaces PLUS+1® sensors

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PLUS+1® software

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PLUS+1® software services,

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Steering components and

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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 | December 2021 BC152886483958en-001001

Danfoss H1T 045, H1T 053, H1T 060, H1T 068 User guide

Specifications and Main Features

Frequently Asked Questions

User Manual

Contents

Technical Specifications

H1 Pumps General Specification

Technical Data for H1 Tandem Pumps

Operating parameters for H1 Tandem Pumps

Fluid Specification

External radial shaft loads H1 Tandem

Bearing Life

Mounting flange loads H1T 045/053

Mounting flange loads H1T 060/068

Case drain

Master Model Code

H1T rotation, ports, and second pump options

H1T Controls Options

H1T Orifice and Displacement Limiter Options

H1T Endcap and Mounting Options

H1T Input Shaft and Aux Mounting Options

H1T High Pressure Relief Valve Options

H1T Pressure Limiter, Charge Pump, and Filtration Options

H1T Charge Pressure Relief, Special Hardware and Settings

Control Options

Electrical Displacement Control (EDC)

Control Solenoid Data

Manual Displacement Control (MDC)

Hydraulic Displacement Control (HDC)

HDC principle

HDC operation

Hydraulic signal pressure range

Pump output flow direction vs. control pressure

Control response

Response time, HDC 047/053, 060/068

Forward-Neutral-Reverse Control (FNR)

Control response

Non feedback proportional electric control (NFPE)

Manual Override (MOR)

Swashplate angle sensor for EDC controls

Swash plate angle sensor parameters (EDC)

Swash plate angle sensor connector

Interface with ECU (EDC)

Swash Plate Angle Sensor for NFPE and AC2 Controls

Swash Plate Angle Sensor Parameters (NFPE/AC)

Swash-plate Angle Sensor Connector (NFPE/AC2)

Interface with ECU (NFPE)

Control-Cut-Off (CCO) and Brake Release Valves

Displacement Limiter

Port Locations

Port Locations H1T 045/053 Tandem

Port Locations H1T 060/068 Tandem

Dimensions

Dimensions H1T 045/053 Tandem

Dimensions H1T 060/068 Tandem

Input shaft, option G1 (SAE C, 14 teeth) (045/053/060/068)

Input shaft, option G5 (SAE B-B, 15 teeth) (045/053 only)

Input shaft, option G6, (19 teeth-long) (045/053 only)

Input shaft, option F1, (060/068 only)

Auxiliary mounting pads

060/068 Control dimensions

045/053 Control dimensions

Center section coupling, torque rating

Control Cut Off (CCO)

045/053 CCO

060/068 CCO

Displacement limiter, H1 Tandem, option B