Danfoss DDC Service guide
Parts Manual
DDC Axial Piston Pumps
Size 20/24
www.danfoss.com
Parts Manual
DDC20/24
Revision history |
Table of revisions |
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Date |
Changed |
Rev |
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March 2022 |
Added AN (Detent), Changed document number from 'AX00000134' to 'AX152886483058' |
0503 |
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June 2019 |
Added DDC24 |
0401 |
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July 2017 |
Updated to Engineering Tomorrow design |
0302 |
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2 | © Danfoss | March 2022 |
AX152886483058en-000503 |
Parts Manual |
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DDC20/24 |
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Contents |
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General information |
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Service parts identification........................................................................................................................................................... |
4 |
Nameplate........................................................................................................................................................................................... |
4 |
Date code............................................................................................................................................................................................ |
5 |
About service bulletins................................................................................................................................................................... |
5 |
Procedure to identify a part.......................................................................................................................................................... |
5 |
Regional part numbers............................................................................................................................................................. |
5 |
Adobe Acrobat 2-page viewing.................................................................................................................................................. |
6 |
Order code.......................................................................................................................................................................................... |
7 |
Displacement, valve plate, control arm |
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Displacement..................................................................................................................................................................................... |
8 |
Valve Plate........................................................................................................................................................................................... |
9 |
Control Arm........................................................................................................................................................................................ |
9 |
Neutral assist mechanism |
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AN (Detent)....................................................................................................................................................................................... |
10 |
Shaft |
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Shaft AA-BC...................................................................................................................................................................................... |
12 |
Shaft DA-DD..................................................................................................................................................................................... |
14 |
Loop flushing |
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Loop Flushing 2-3 and D............................................................................................................................................................. |
16 |
End cap |
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End Cap AAC9................................................................................................................................................................................. |
18 |
End Cap AAN1................................................................................................................................................................................. |
20 |
End cap AAN3.................................................................................................................................................................................. |
22 |
End cap AAN9.................................................................................................................................................................................. |
24 |
End cap ABN1.................................................................................................................................................................................. |
26 |
End cap ABN3.................................................................................................................................................................................. |
28 |
End cap ABN9.................................................................................................................................................................................. |
30 |
End cap ACA0 and ACD0............................................................................................................................................................. |
32 |
End cap BCF0 and BCFN.............................................................................................................................................................. |
34 |
Charge pump |
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Charge Pump 3-5 and B-C........................................................................................................................................................... |
36 |
Charge Pump D............................................................................................................................................................................... |
38 |
Charge Pump E, F and G.............................................................................................................................................................. |
40 |
Charge pressure relief |
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Charge Pressure Relief 5-18........................................................................................................................................................ |
42 |
System protection |
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System Pressure Protection, 00N, 14A-30N.......................................................................................................................... |
44 |
System Pressure Protection 32A-34N, 00N, 14A-25N....................................................................................................... |
46 |
System Pressure Protection 28A-34N..................................................................................................................................... |
48 |
Input flange |
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Input Flange A-E............................................................................................................................................................................. |
50 |
Input Flange F-L.............................................................................................................................................................................. |
52 |
Overhaul seal kit |
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DDC20 Overhaul Seal Kit............................................................................................................................................................. |
54 |
© Danfoss | March 2022 |
AX152886483058en-000503 | 3 |
Parts Manual
DDC20/24
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 DDC20.
Nameplate
Each unit will have a nameplate affixed to the housing. The nameplate of the DDC20 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/material number
The Danfoss model number (also known as material 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.
Model No./Ident No. |
11083308 |
Model Code |
DDC 20 A L LB RSA |
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NN A N 3 AB ACD0 C |
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07 25 A NNN NNN |
Serial No. |
J110912345 |
MADE IN JAPAN.
4 | © Danfoss | March 2022 |
AX152886483058en-000503 |
Parts Manual
DDC20/24
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 |
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Model/Kit |
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80 |
G30 |
89-17 |
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8000243 |
End cap gasket |
1 |
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G30 |
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89-16 |
8000151 |
End cap gasket |
1 |
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(SB-1995-006) |
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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
A Service 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.
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.
Regional part numbers
Some part numbers are region specific and should be ordered accordingly.
As an example, the part number (example: 314583 (9008000-0118) will be used. The first number is sold in Germany. The number in parentheses is sold in the United States. Customers would order 9008000-0118 if ordering the part in the United States.
© Danfoss | March 2022 |
AX152886483058en-000503 | 5 |
Parts Manual
DDC20/24
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”
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6 | © Danfoss | March 2022 |
AX152886483058en-000503 |
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Parts Manual
DDC20/24
General information
Order code
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Valve plate |
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Control arm |
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Neutral assist mechanism |
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Bypass valve |
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Loop flushing |
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Charge pump displacement |
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Shaft |
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End cap/auxiliary pad |
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Input flange |
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Charge pressure relief setting |
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System pressure protection, port A |
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System pressure protection, port B |
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Special hardware features |
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Paint and nametag |
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P108 588E |
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© Danfoss | March 2022 |
AX152886483058en-000503 | 7 |
Parts Manual
DDC20/24
Displacement, valve plate, control arm
Displacement
E225 E200
*E320
(LSA)
*E210
E300
*E220
E325
E105 E100
A100
C010
E225
*E220 E200
(RSA)
*E210
E300
*E320
E325
E100
E105
A100
C010
E101 822E
* Included in overhaul seal kit Q210
Generic housing used to show part location only.
8 | © Danfoss | March 2022 |
AX152886483058en-000503 |
Parts Manual
DDC20/24
Displacement, valve plate, control arm
Order code: 20 parts
Item |
Date Begin |
Date End |
Part Number |
Part Name |
Qty. per |
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Model/Kit |
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A100 |
11-34 |
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11051773 |
Cylinder block kit (DDC20 only) |
1 |
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A100 |
19-25 |
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11229017 |
Cylinder block kit (DDC24 only) |
1 |
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Valve Plate
Order code: LA parts
Item |
Date Begin |
Date End |
Part Number |
Part Name |
Qty. per |
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Model/Kit |
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C010 |
11-34 |
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11065497 |
Valve plate, CCW, low control moment |
1 |
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LB parts
C010 |
11-34 |
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11087147 |
Valve plate, CCW, high neutral seeking |
1 |
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RA parts
C010 |
11-34 |
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11050370 |
Valve plate, CW, low control moment |
1 |
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RB parts
C010 |
11-34 |
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11091396 |
Valve plate, CW, high neutral seeking |
1 |
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Control Arm
Order code: LSA and RSA common parts
Item |
Date Begin |
Date End |
Part Number |
Part Name |
Qty. per |
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Model/Kit |
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E100 |
11-34 |
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11230539 |
Swashplate, axial offset |
1 |
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E105 |
11-34 |
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11050101 |
Thrust plate |
1 |
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E210 |
11-34 |
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11050327 |
Lip seal |
1 |
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E220 |
11-34 |
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9004104-1360 |
O-ring |
1 |
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E225 |
11-34 |
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FBE056 |
Retaining ring |
1 |
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E320 |
11-34 |
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9004104-1360 |
O-ring |
1 |
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E325 |
11-34 |
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FBE056 |
Retaining ring |
1 |
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LSA parts
E200 |
11-34 |
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11083526 |
Journal bearing carrier assembly |
1 |
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E300 |
11-34 |
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11083525 |
Journal bearing carrier assembly |
1 |
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RSA parts
E200 |
11-34 |
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11083525 |
Journal bearing carrier assembly |
1 |
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E300 |
11-34 |
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11083526 |
Journal bearing carrier assembly |
1 |
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© Danfoss | March 2022 |
AX152886483058en-000503 | 9 |
Parts Manual
DDC20/24
Neutral assist mechanism
AN (Detent)
G150
G210
G330
G320
G230
G200 |
G220 |
G300
G310
G100
P400750
10 | © Danfoss | March 2022 |
AX152886483058en-000503 |
Parts Manual
DDC20/24
Neutral assist mechanism
Order code: AN (Detent)
Item |
Date Begin |
Date End |
Part Number |
Part Name |
Qty. per |
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Model/Kit |
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G100 |
22-08 |
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11247397 |
Lever-Detent, DDC |
1 |
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G150 |
22-08 |
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11247398 |
Plate-Detent, DDC |
1 |
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G200 |
22-08 |
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AAN0802501 |
Screw-Soc HD, M8x25 JIS B1176 |
1 |
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G210 |
22-08 |
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AAM0802001 |
Screw-Soc HD, M8x20 JIS B1176 |
2 |
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G220 |
22-08 |
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AAM0603001 |
Screw-Soc HD, M6x30 JIS B1176 |
2 |
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G230 |
22-08 |
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11050795 |
Spring Washer |
2 |
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G300 |
22-08 |
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1040323 |
Spring Case |
1 |
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G310 |
22-08 |
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B1575A-M6 |
Grease Nipple |
1 |
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G320 |
22-08 |
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HKWS5 |
Steel Ball 5/16 JIS B1501 |
1 |
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G330 |
22-08 |
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1040324 |
Spring |
1 |
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© Danfoss | March 2022 |
AX152886483058en-000503 | 11 |
Parts Manual
DDC20/24
Shaft
Shaft AA-BC
F100
F100 |
F125 |
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*F120 |
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(BC) |
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F115 |
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F100 |
F110 |
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F105 |
(BB)
(BA) F100
F100
(AC)
F100
(AB)
F205
(AA)
*Included in overhaul seal kit Q210
12 | © Danfoss | March 2022 |
AX152886483058en-000503 |
Parts Manual
DDC20/24
Shaft
Order code: all common parts
Item |
Date Begin |
Date End |
Part Number |
Part Name |
Qty. per |
|
|
|
|
|
Model/Kit |
|
|
|
|
|
|
F105 |
11-341 |
|
SP0984 |
Ball bearing |
1 |
F110 |
11-341 |
|
FBD025 |
Retaining ring |
1 |
F115 |
11-341 |
|
FBE052 |
Retaining ring |
1 |
F120 |
11-341 |
|
11082827 |
Lip seal |
1 |
F125 |
11-341 |
|
FBE052 |
Retaining ring |
1 |
F205 |
11-341 |
|
11050329 |
Needle bearing |
1 |
1 Date Begin for order code BB is 14-45 |
|
|
|
||
AA parts
F100 |
11-34 |
|
11094869 |
Shaft, straight key (33mm) |
1 |
|
|
|
|
|
|
AB parts
F100 |
11-34 |
|
11075897 |
Shaft, straight key (53mm) |
1 |
|
|
|
|
|
|
AC parts
F100 |
11-34 |
|
11094870 |
Shaft, 13 tooth spline |
1 |
|
|
|
|
|
|
BA parts
F100 |
11-34 |
|
11095057 |
Shaft, straight key (33mm), auxiliary drive |
1 |
|
|
|
|
|
|
BB parts
F100 |
14-45 |
|
11150105 |
Shaft, straight key (53mm), auxiliary drive |
1 |
|
|
|
|
|
|
BC
F100 |
11-34 |
|
11096321 |
Shaft, 13 tooth spline, auxiliary drive |
1 |
|
|
|
|
|
|
© Danfoss | March 2022 |
AX152886483058en-000503 | 13 |
Parts Manual
DDC20/24
Shaft
Shaft DA-DD
F125
*F120
F115
F100 |
F110 |
|
F105 |
||
|
||
(DD) |
F100 |
|
|
||
(DC) |
F100 |
F100
(DB)
(DA)
F205
E103 680
*Included in overhaul seal kit Q210
14 | © Danfoss | March 2022 |
AX152886483058en-000503 |
Parts Manual
DDC20/24
Shaft
Order code: all common parts
Item |
Date Begin |
Date End |
Part Number |
Part Name |
Qty. per |
|
|
|
|
|
Model/Kit |
|
|
|
|
|
|
F105 |
14-45 |
|
SP0984 |
Ball bearing |
1 |
|
|
|
|
|
|
F110 |
14-45 |
|
FBD025 |
Retaining ring |
1 |
|
|
|
|
|
|
F115 |
14-45 |
|
FBE052 |
Retaining ring |
1 |
|
|
|
|
|
|
F120 |
14-45 |
|
11082827 |
Lip seal |
1 |
|
|
|
|
|
|
F125 |
14-45 |
|
FBE052 |
Retaining ring |
1 |
|
|
|
|
|
|
F205 |
14-45 |
|
11050329 |
Needle bearing |
1 |
|
|
|
|
|
|
DA parts
F100 |
14-45 |
|
11154184 |
Shaft, straight key (33mm), auxiliary drive |
1 |
|
|
|
|
|
|
DB parts
F100 |
14-45 |
|
11154183 |
Shaft, straight key (53mm), auxiliary drive |
1 |
|
|
|
|
|
|
DC parts
F100 |
14-45 |
|
11152845 |
Shaft, 13 tooth, auxiliary drive |
1 |
|
|
|
|
|
|
DD parts
F100 |
14-45 |
|
11152846 |
Shaft, 20 tooth, auxiliary drive |
1 |
|
|
|
|
|
|
© Danfoss | March 2022 |
AX152886483058en-000503 | 15 |
Parts Manual
DDC20/24
Loop flushing
Loop Flushing 2-3 and D
H150 |
(2 & 3) |
|
H200 |
||
|
||
|
H100 |
H200
H150
H100
(D)
E103 250E
*Included in overhaul seal kit Q210
16 | © Danfoss | March 2022 |
AX152886483058en-000503 |
Parts Manual
DDC20/24
Loop flushing
Order code: 2 parts
Item |
Date Begin |
Date End |
Part Number |
Part Name |
Qty. per |
|
|
|
|
|
Model/Kit |
|
|
|
|
|
|
H100 |
11-34 |
|
11098179 |
Spool |
1 |
|
|
|
|
|
|
H150 |
11-34 |
|
11097840 |
Spring |
2 |
|
|
|
|
|
|
H200 |
11-34 |
|
1745296 |
Spring guide |
2 |
|
|
|
|
|
|
3 parts
H100 |
15-36 |
|
11120528 |
Spool |
1 |
|
|
|
|
|
|
H150 |
15-36 |
|
11097840 |
Spring |
2 |
|
|
|
|
|
|
H200 |
15-36 |
|
1745296 |
Spring guide |
2 |
|
|
|
|
|
|
D parts
H100 |
11-34 |
|
11098213 |
Spool, defeated |
1 |
|
|
|
|
|
|
© Danfoss | March 2022 |
AX152886483058en-000503 | 17 |
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