Service parts identification........................................................................................................................................................... 5
Date code............................................................................................................................................................................................ 6
About service bulletins...................................................................................................................................................................6
Procedure to identify a part..........................................................................................................................................................6
Regional part numbers............................................................................................................................................................. 6
Order code.......................................................................................................................................................................................... 8
Control MA4, MA5..........................................................................................................................................................................10
Control MG8, MH1......................................................................................................................................................................... 12
Control SA2, SA3.............................................................................................................................................................................14
Control SA4, SA5.............................................................................................................................................................................16
Control SE7, SE8..............................................................................................................................................................................18
Control SG8, SH1............................................................................................................................................................................ 20
Control SH2...................................................................................................................................................................................... 22
MP1 control MM1, MM2.............................................................................................................................................................. 24
Control SM1, SM2...........................................................................................................................................................................26
Control MA9, MB1..........................................................................................................................................................................28
Control SA9, SB1.............................................................................................................................................................................30
Control MN1, MN2, SN1, SN2.....................................................................................................................................................32
Control MM3, MM4, SM3, SM4.................................................................................................................................................. 34
Control MNN, SNN......................................................................................................................................................................... 38
Control MT1, MT2...........................................................................................................................................................................40
Control ST1, ST2..............................................................................................................................................................................42
MP1 control AJ1..............................................................................................................................................................................44
MP1 control AU1............................................................................................................................................................................ 46
MP1 control AJ3..............................................................................................................................................................................48
MP1 control AU3............................................................................................................................................................................ 50
Porting type A1, A3....................................................................................................................................................................... 62
Porting type C1, C3........................................................................................................................................................................64
Porting type A4, C4........................................................................................................................................................................66
Porting type A5, C5........................................................................................................................................................................68
Aux mounting A16-ANN..............................................................................................................................................................76
Aux mounting B16-BNN.............................................................................................................................................................. 78
Aux mounting C16-CNN..............................................................................................................................................................80
Aux mounting D16-DNN.............................................................................................................................................................82
Aux mounting E16-ENN...............................................................................................................................................................84
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MP1 28 and 32cc
Contents
Aux mounting F16-FNN...............................................................................................................................................................86
Loop flushing
Loop flushing A, B, C..................................................................................................................................................................... 88
System protection
System protection port A............................................................................................................................................................90
System protections port B.......................................................................................................................................................... 92
Filtration and charge pressure relief
Filtration and charge pressure relief.......................................................................................................................................94
Special hardware
Special hardware, LAC-LBD........................................................................................................................................................ 96
Special hardware RAC-RBD.........................................................................................................................................................98
MP1 28/32cc seal kit................................................................................................................................................................... 102
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 MP1 28 and 32cc variable
displacement pumps.
The parts listed include all parts which may be used when performing either “Minor Repairs”, “Major
Repairs” or “Conversions” on the MP1 28 and 32cc.
Each unit will have a nameplate affixed to the housing. The nameplate of the MP1 28 and 32cc 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.
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Parts Manual
MP1 28 and 32cc
General information
Date code
About service bulletins
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 CodeItemDate BeginDate EndPart NumberPart NameQty. per
80G3089-178000243End cap gasket 1
G3089-168000151End cap gasket
(SB-1995-006)
Model/Kit
1
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.”
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.