Danfoss MPV044D, MPT044D Service guide

Parts Manual
Series 40 MPV044D and MPT044D
Axial Piston Pumps
powersolutions.danfoss.com
Parts Manual
Revision history Table of revisions
Date Changed Rev
March 2018 Updated to Engineering Tomorrow design and added SB-2017-012 0203
2 | © Danfoss | March 2018 AX00000066en-US0203
Parts Manual

Contents

General information
Service Parts Identification............................................................................................................................................................5
Nameplate...........................................................................................................................................................................................5
Date code............................................................................................................................................................................................ 6
About service bulletins...................................................................................................................................................................6
Procedure to identify a part..........................................................................................................................................................7
Example of a part identification (MPV044D).....................................................................................................................7
Adobe Acrobat 2-page viewing..................................................................................................................................................8
Order code, variable displacement pump...............................................................................................................................9
Order code, tandem pump.........................................................................................................................................................10
Variable displacement pump
Common parts and special hardware.................................................................................................................................... 12
Swashplate....................................................................................................................................................................................... 14
Shaft and shaft seal....................................................................................................................................................................... 16
Valve plate rotation.......................................................................................................................................................................18
Charge pump...................................................................................................................................................................................20
Charge pressure relief C-S...........................................................................................................................................................22
Filtration............................................................................................................................................................................................ 26
System pressure protection....................................................................................................................................................... 28
System pressure protection AAA-BGG..............................................................................................................................28
System pressure protection BHB-EFF................................................................................................................................30
Direct displacement control...................................................................................................................................................... 32
Auxiliary mounting flange A-H................................................................................................................................................. 34
Overhaul seal kit.............................................................................................................................................................................38
Notes...................................................................................................................................................................................................39
Variable displacement tandem pump
Common parts and special hardware.................................................................................................................................... 40
Common parts...........................................................................................................................................................................40
Special hardware ABN-DNN..................................................................................................................................................42
Special hardware DVG-GBB...................................................................................................................................................46
Special hardware GBC-GUH..................................................................................................................................................50
Special hardware GUJ-HTJ.....................................................................................................................................................54
Special hardware HVG-MGT..................................................................................................................................................56
Special hardware MVG-PGV..................................................................................................................................................60
Special hardware RVG-YUG...................................................................................................................................................64
Special hardware ZNZ-ZVG...................................................................................................................................................68
Swashplate....................................................................................................................................................................................... 70
Shaft and shaft seal....................................................................................................................................................................... 72
Valve plate rotation.......................................................................................................................................................................74
Charge pump...................................................................................................................................................................................78
Charge pressure relief valve.......................................................................................................................................................80
Charge pressure relief 2, 4, A................................................................................................................................................80
Charge pressure relief C-Z.....................................................................................................................................................82
Filtration............................................................................................................................................................................................ 86
System pressure protection....................................................................................................................................................... 88
System pressure protection (front pump) AAA-CGA...................................................................................................88
System pressure protection (front pump) EFF-HKK.....................................................................................................92
System pressure protection (rear pump) AAA-CGA.....................................................................................................94
System pressure protection (rear pump) ERR-HKK.......................................................................................................99
Direct displacement control....................................................................................................................................................101
DDC (front pump) DA-DC....................................................................................................................................................101
DDC (front pump) DD-WN.................................................................................................................................................. 103
DDC (rear pump) DA-DE......................................................................................................................................................107
DDC (rear pump) DW-WN................................................................................................................................................... 111
Swashplate (rear pump)............................................................................................................................................................113
Auxiliary mounting flange........................................................................................................................................................115
Auxiliary mounting flange 1-4...........................................................................................................................................115
Auxiliary mounting flange 6-B...........................................................................................................................................117
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Parts Manual
Contents
Auxiliary mounting flange C-H..........................................................................................................................................121
Auxiliary mounting flange I-P............................................................................................................................................123
Auxiliary mounting flange T-X...........................................................................................................................................125
Auxiliary mounting flange Y, Z..........................................................................................................................................127
Overhaul seal kit...........................................................................................................................................................................129
Service bulletin
SB-1996-014...................................................................................................................................................................................130
SB-1998-092...................................................................................................................................................................................132
SB-1999-040...................................................................................................................................................................................134
SB-2000-026A................................................................................................................................................................................135
SB-2002-021...................................................................................................................................................................................136
SB-2003-018...................................................................................................................................................................................137
SB-2010-037...................................................................................................................................................................................139
SB-2013-002...................................................................................................................................................................................141
SB-2017-012...................................................................................................................................................................................142
4 | © Danfoss | March 2018 AX00000066en-US0203
MADE IN U.S.A.
Serial No. Fabr- Nr
A-16-36-23456
Model Code Typ
Model No.
MPV-044-D-B-A-G-W-A-G NN-A-A-BJJ-DR-A-FF-A NNN
4442050
Ident-Nr
Parts Manual

General information

Service Parts Identification

The following information and procedure is used to identify the module group, item number, manufacture date, part number, and part name of the parts included in the
The parts listed include all parts which may be used when performing either “Minor Repairs”, “Major Repairs” or “Conversions” on the.

Nameplate

Each unit will have a nameplate affixed to the housing. The nameplate will include the following information:
Model Code
The Danfoss model code completely defines the specific unit and must be used when ordering parts to service this product.
Model Number
The Danfoss model number is used by the factory in manufacturing. On repeat orders, a complete unit can be ordered by the model number.
Serial Number
The Danfoss serial number is used to identify the manufacture date and the unit sequence in the build. The serial number is also used to identify the units warranty time period.
The letter code indicates the location of original manufacture (assembly). The first number (2 digits) indicates the year of manufacture. The second number (2 digits) indicates the
calendar week of manufacture. The third number (5 digits) is a sequential number used to identify a specific unit.
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Parts Manual
General information

Date code

The date code is defined as the year and week of manufacture. The same item number may list more than one part number. This indicates that there is more than one configuration for that item number. You will see that there are different date codes for the different part numbers. Find the date code of your unit from the nameplate to determine which service part number you need to order.
Example: The service part desired is item G30
Order Code Item Date Begin Date End Part Number Part Name Qty. per
80 G30 89-17 8000243 End cap gasket 1
G30 89-16 8000151 End cap gasket
All units using this order code with a date code prior to 89-17 must use part number “8000151.” All units with a date code of 89-17 and newer must use part number “8000243.”

About service bulletins

AService Bulletin Number (SB-_ _ _ _ - _ _ _) may follow the “Part Name” of the part you desire. You must read that Service Bulletin prior to ordering that part. The information contained in these Service Bulletins, as of the print date of this bulletin, are included at the end of this manual. Service Bulletins contain more detailed information such as interchangeability, what additional parts are involved, etc. It is suggested that you add additional Service Bulletins to this manual as you receive them.
Model/Kit
1
(SB-1995-006)
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Parts Manual
General information

Procedure to identify a part

The modular design of this product results in a simplified service parts list and part number identification procedure.
The same item numbers are used for same part names on all units within a product type.. A part number that has another number following it in parentheses is done to make this a world wide
manual. The first number is sold in Germany. The number in parentheses is sold in the United States (example: 314583 (9008000-0118), customers would order 9008000-0118 if ordering the part in the United States).

Example of a part identification (MPV044D)

The nameplate on a Series 40 pump has an Order Code of MPV-044-D-B-A-G-W-A-G-NN-A-A-BJJ-DR-A­FF-A-NNN. Follow the steps below to determine the part number of the drive shaft used on this pump:
1. Referring to the input shaft module in the Order code, variable displacement pump, the output shaft option for this motor is identified by the code G. (MPV-044-D-B-A-G-W-A-G-NN-A-A-BJJ-DR-A-FF-A­NNN)
2. Referring to the Service Parts List, find the shaft group
3. Find the order code that relates to this unit, which isG.
4. Follow along shaft item E01 to find the part number
The part number is 4350431.
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Parts Manual
General information

Adobe Acrobat 2-page viewing

While viewing manual in Adobe Acrobat, the following settings need to be applied to ensure proper page display.
1. Select “View” “Page Display” “Two Page View”
2. Select “View” “Page Display” “Show Cover Page in Two Page View”
8 | © Danfoss | March 2018 AX00000066en-US0203
M
P
Product
Frame size
Swashplate
Seal group
Shaft
Rotation
Charge pump
Charge pressure relief valve
Filtration
Displacement limiter
By pass valve
System pressure protection
V
Type
0
4 4
B
D
A
G
W
A
AN N
B
J
J
D
R
A
F F
AA N
N N
Special hardware
Rear auxiliary flange
Control
G
Control handle position
Control orifice
Parts Manual
General information
Order code
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Swashplate
Seal group
Not applicable
System pressure protection
Control type
Not applicable
Not applicable
Auxiliary mounting pad
Special hardware
Special hardware features
Not applicable
AN N
B
J
J
D
R
A
F F
AA N
N N NNN
Q
D
U
X
V
Y
Z
W
Rear section
S
T
ZZ
Parts Manual
General information

Order code, tandem pump

Rear tandem
10 | © Danfoss | March 2018 AX00000066en-US0203
M
P
Product
Frame size
Input shaft
Rotation
Charge pump
Charge pressure relief valve
Filtration
Swashplate
Seal group
Not applicable
Not applicable
System pressure protection
Control type
Not applicable
Not applicable
T
Type
0
4 4
B
D
A
G
W
A
AN N
B
J
J
D
R
A
F F
A
G
E
F
G
H
J
C
D
K
L
M
N
P
R
Front section
+
Parts Manual
General information
Front tandem
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B01
B22
B30
B36
B32
*B37
B38
B39
B40
B43
B04
B05
B56
B08
B55
B03
B57
B41
B53
B45
B59
B42
QB24
QB31
Parts Manual

Variable displacement pump

S40 MPV common parts and special hardware
Parts configuration
* Included in overhaul seal kit Q210
12 | © Danfoss | March 2018 AX00000066en-US0203
Parts Manual
Variable displacement pump
Common parts
Item Date Begin Date End Part Number Part Name Qty. per
B01 95-45 4350350 Housing 1 B03 95-45 11083729 Seal support washer 1 B04 95-45 5000731 Ball bearing 1 B05 95-45 9006300-0137 Retaining ring 1 B08 95-45 9006200-0281 Retaining ring 1 B30 95-45 4350048 Slipper holddown pin retainer 1 B36 95-45 4350185 Slipper retainer 1 B37 95-45 4350145 End cap gasket 1 B38 95-45 9001465-0015 Needle bearing 1 B39 95-45 9004700-1910 Slotted pin 1 B40 95-45 5000529 Pin (SB-1998-092 on page 132) 2 B41 95-45 9007210-1014 Screw, M10 x 65 2 B42 95-45 648444 (9007210-1018) Screw, M10 x 90 2 B43 95-45 046151 (9005100-5600) Plug assembly 1 B45 95-45 664524 (9005110-9000) Plug assembly 1 B53 95-45 8800565 Lifting bracket 1 B55 95-45 9006200-0281 Retaining ring 1 B56 95-45 615245 (9006300-0137) Retaining ring 1 B57 95-45 046151 (9005100-5600) Plug assembly 1 B59 95-45 664524 (9005110-9000) Plug assembly 1 QB24 95-45 11131906 Cylinder block assembly 1 QB31 17-12 11178525 SVC kit- ball guide and pins (SB-2017-012 on page
142)
Model/Kit
1
Special hardware
Order code: ANA
B22 95-45 4440114 Cylinder block kit, welded pistons 1 B32 95-45 4440113 Piston assembly, welded 9
Order code: NGD
B22 95-45 4440004 Cylinder block kit 1 B32 95-45 4440003 Piston assembly 9
Order code: NNN
B22 95-45 4440004 Cylinder block kit 1 B32 95-45 4440003 Piston assembly 9
Order code: N0P
B22 95-45 4440004 Cylinder block kit 1 B32 95-45 4440003 Piston assembly 9
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C02
C01
C08
C07
C01
C10
C08
C07
C02
(B)
(G, H)
Parts Manual
Variable displacement pump
S40 MPV swashplate B-H
Parts configuration
Swashplates shown controlled on right.
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Parts Manual
Variable displacement pump
Order code: B
Item Date Begin Date End Part Number Part Name Qty. per
C01 95-45 11166719 Swashplate, tapped 1 C02 95-45 4350148 Thrust plate 1 C07 95-45 4800470 Bearing kit 1 C08 95-45 4800470 Bearing kit 1
Order code: G
C01 03-07 4350823 Swashplate, 24 mm diameter keyed, 14.6° 1 C02 03-07 4350148 Thrust plate 1 C07 03-07 4800470 Bearing kit 1 C08 03-07 4800470 Bearing kit 1 C10 05-05 1040275 Key 1
Order code: H
C01 03-07 4350822 Swashplate, 24 mm diameter keyed, 16° 1 C02 03-07 4350148 Thrust plate 1 C07 03-07 4800470 Bearing kit 1 C08 03-07 4800470 Bearing kit 1 C10 05-05 1040275 Key 1
Model/Kit
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E01
E01
E02
E01
E02
*B02
B02
(A)(A)
(B)(B)
(N)(N)
(A, G)(A, G)
(Y)(Y)
Parts Manual
Variable displacement pump
S40 MPV shaft and shaft seal
Parts configuration
* Included in overhaul seal kit Q210
16 | © Danfoss | March 2018 AX00000066en-US0203
Parts Manual
Variable displacement pump
Shaft seal
Order code: A
Item Date Begin Date End Part Number Part Name Qty. per
B02 95-45 5000689 Lip seal (SB-2003-018 on page 137) 1
Order code: B
B02 13-03 11103135 Lip seal 1
Shaft
Order code: A
E01 95-45 4350397 Shaft, 13-tooth spline 1
Order code: G
E01 95-45 4350431 Shaft, 15-tooth spline 1
Model/Kit
Order code: N
E01 95-45 4350398 Shaft, tapered 1 E02 95-45 9003310-2514 Key, woodruff 1
Order code: Y
E01 95-45 4350399 Shaft, straight key 1 E02 95-45 9003261-2524 Key, square 1
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F01
Parts Manual
Variable displacement pump
S40 MPV valve plate rotation
Parts configuration
18 | © Danfoss | March 2018 AX00000066en-US0203
Parts Manual
Variable displacement pump
Order code: 2
Item Date Begin Date End Part Number Part Name Qty. per
F01 98-12 4350729 Valve plate, CCW, 4° index 1
Order code: 4
F01 98-43 4440076 Valve plate, CCW, low force 1
Order code: 5
F01 98-43 4440075 Valve plate, CW, low force 1
Order code: 7
F01 98-12 4350728 Valve plate, CW, 4° index 1
Order code: 8
F01 95-45 4350730 Valve plate, CW, 6° index 1
Model/Kit
Order code: 9
F01 95-45 4350731 Valve plate, CCW, 6° index 1
Order code: R
F01 95-45 4350157 Valve plate, CW 1
Order code: W
F01 95-45 4350322 Valve plate, CW, quiet 1
Order code: Y
F01 95-45 4350323 Valve plate, CCW, quiet 1
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*G06
*G04A
G04
*G06
*G07
G04
(design prior to 98-07)
(design after to 98-07)
*G07
G05
G03
G04
G01
*G06
(A)
(S)
Parts Manual
Variable displacement pump
S40 MPV charge pump
Parts configuration
* Included in overhaul seal kit Q210
20 | © Danfoss | March 2018 AX00000066en-US0203
Parts Manual
Variable displacement pump
Order code: A
Item Date Begin Date End Part Number Part Name Qty. per
G04 98-07 4800670 Spacer assembly 1 G04 95-45 98-06 4800179 Spacer 1 G04A 98-07 673533 O-ring 1 G06 98-07 5000352 O-ring 1 G07 95-45 98-06 5000353 O-ring 1
Order code: S
G01 95-45 9004800-1908 Pin 1 G03 95-45 4800170 Gerotor assembly 1 G04 95-45 4800179 Spacer 1 G05 95-45 018564 (9001210-1900) Ball 1 G06 95-45 5000352 O-ring 1 G07 95-45 5000353 O-ring 1
Model/Kit
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H01
H07
H06
*H01A
H08
Parts Manual
Variable displacement pump
S40 MPV charge pressure relief valve C-
Parts configuration
* Included in overhaul seal kit Q210
22 | © Danfoss | March 2018 AX00000066en-US0203
Parts Manual
Variable displacement pump
Order code: C
Item Date Begin Date End Part Number Part Name Qty. per
H01 95-50 4800308 Plug assembly/18 bar [260 psi] 1 H01A 95-50 001149 (9004201-6200) O-ring 1 H06 95-50 4510027 Shim kit 1 H07 95-50 4800176 Spring 1 H08 95-50 4800134 Poppet 1
Order code: E
H01 95-45 4800308 Plug assembly/11 bar [160 psi] 1 H01A 95-45 001149 (9004201-6200) O-ring 1 H06 95-45 4510027 Shim kit 1 H07 95-45 4800176 Spring 1 H08 95-45 4800134 Poppet 1
Model/Kit
Order code: F
H01 95-45 4800308 Plug assembly/7.5 bar [110 psi] 1 H01A 95-45 001149 (9004201-6200) O-ring 1 H06 95-45 4510027 Shim kit 1 H07 95-45 4800714 Spring 1 H08 95-45 4800134 Poppet 1
Order code: G
H01 95-45 4800308 Plug assembly/14 bar [200 psi] 1 H01A 95-45 001149 (9004201-6200) O-ring 1 H06 95-45 4510027 Shim kit 1 H07 95-45 4800176 Spring 1 H08 95-45 4800134 Poppet 1
Order code: H
H01 03-26 4800308 Plug assembly/24 bar [348 psi] 1 H01A 03-26 001149 (9004201-6200) O-ring 1 H06 03-26 4510027 Shim kit 1 H07 03-26 11022448 Spring 1 H08 03-26 4800134 Poppet 1
Parts continue to the next 2 pages.
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H01
H07
H06
*H01A
H08
Parts Manual
Variable displacement pump
Parts configuration
* Included in overhaul seal kit Q210
Order code: R
H01 98-40 4800308 Plug assembly/6.2 bar [90 psi] 1 H01A 98-40 001149 (9004201-6200) O-ring 1 H06 98-40 4510027 Shim kit 1
24 | © Danfoss | March 2018 AX00000066en-US0203
Parts Manual
Variable displacement pump
Order code: R (continued)
H07 98-40 4800714 Spring 1 H08 98-40 4800134 Poppet 1
Order code: S
H01 03-50 4350846 Plug assembly/18 bar [260 psi], low noise 1 H01A 03-50 001149 (9004201-6200) O-ring 1 H06 03-50 4510027 Shim kit 1 H07 03-50 4800176 Spring 1 H08 03-50 1732454 Poppet 1
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J01
J05
J01
J06
J07
J01
J06
J02
J05
J07
(AA)
(BA)
(NN)
Parts Manual
Variable displacement pump
S40 MPV Filtration
Parts configuration
26 | © Danfoss | March 2018 AX00000066en-US0203
Parts Manual
Variable displacement pump
Order code: AA
Item Date Begin Date End Part Number Part Name Qty. per
J01 95-45 4350257 End cap 1 J05 95-45 001537 (9005100-8700) Plug assembly 1 J07 95-45 001537 (9005100-8700) Plug assembly 1
Order code: BA
J01 95-45 4350257 End cap 1 J06 95-45 001487 (9005001-2500) Pipe plug 1
Order code: NN
J01 95-45 4350257 End cap 1 J02 95-45 001537 (9005110-9200) Plug assembly 1 J05 95-45 001537 (9005100-8700) Plug assembly 1 J06 95-45 001487 (9005001-2500) Pipe plug 1 J07 95-45 001537 (9005100-8700) Plug assembly 1
Model/Kit
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*M023
*M022
M10
*M023
M10
*M022
*M023
M20
*M022
*M023
M20
*M022
(AAA)
(BBB, BDD, BEE BFF, BGF, BGG)
(BBB, BDD, BEE BFF, BGF, BGG)
(AAA)
Parts Manual
Variable displacement pump

System pressure protection

MPV044D system pressure protection AAA-BGG
Parts configuration
* Included in overhaul seal kit Q210
28 | © Danfoss | March 2018 AX00000066en-US0203
Parts Manual
Variable displacement pump
Common parts
Item Date Begin Date End Part Number Part Name Qty. per
M022 95-45 001131 (9004201-5000) O-ring 2 M023 95-45 9004100-2110 O-ring 2
Order code: AAA
M10 95-45 4350634 Check valve poppet assembly (SB-1996-014 on
page 130)
M20 95-45 4350634 Check valve poppet assembly (SB-1996-014 on
page 130)
Order code: BBB
M10 95-45 4350643 SCR valve assembly, 175 bar [2528 psi]
(SB-1996-014 on page 130)
M20 95-45 4350643 SCR valve assembly, 175 bar [2528 psi]
(SB-1996-014 on page 130)
Model/Kit
1
1
1
1
Order code: BDD
M10 95-45 4350641 SCR valve assembly, 210 bar [3045 psi]
(SB-1996-014 on page 130)
M20 95-45 4350641 SCR valve assembly, 210 bar [3045 psi]
(SB-1996-014 on page 130)
Order code: BEE
M10 95-45 4350640 SCR valve assembly, 230 bar [3335 psi]
(SB-1996-014 on page 130)
M20 95-45 4350640 SCR valve assembly, 230 bar [3335 psi]
(SB-1996-014 on page 130)
Order code: BFF
M10 95-45 4350639 SCR valve assembly, 250 bar [3625 psi]
(SB-1996-014 on page 130)
M20 95-45 4350639 SCR valve assembly, 250 bar [3625psi]
(SB-1996-014 on page 130)
Order code: BGF
M10 96-28 4350638 SCR valve assembly, 280 bar [4060 psi] 1 M20 96-28 4350639 SCR valve assembly, 250 bar [3625 psi] 1
Order code: BGG
M10 95-45 4350638 SCR valve assembly, 280 bar [4060 psi]
(SB-1996-014 on page 130)
M20 95-45 4350638 SCR valve assembly, 280 bar [4060 psi]
(SB-1996-014 on page 130)
1
1
1
1
1
1
1
1
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*M023
M10
*M022
*M023
M20
*M022
*M023
M20
*M022
(BHB, BHH, BJJ, BMM, EFF)
(CGA)
(BHB, BHH, BJJ, BMM, CGA, EFF)
Parts Manual
Variable displacement pump
MPV044D system pressure protection BHB-EFF
Parts configuration
* Included in overhaul seal kit Q210
30 | © Danfoss | March 2018 AX00000066en-US0203
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