Parts Manual Series 51-1: 60cc, 80cc and 110cc Variable Displacement Motor
Contents
General Information
Order code
Cartridge ange, 60cc
Cartridge ange, 80cc
Cartridge ange, 110cc
DIN ange, 60cc
DIN ange, 80cc
DIN ange, 110cc
Service parts identication ............................................................................................................................................. 5
Date code ..............................................................................................................................................................................6
Service bulletins..................................................................................................................................................................6
Procedure to identify a part ............................................................................................................................................6
Order code ............................................................................................................................................................................7
Common parts ................................................................................................................................................................8-9
Special hardware ......................................................................................................................................................... 8-13
Common parts ...........................................................................................................................................................14-15
Special hardware .......................................................................................................................................................14-19
Common parts ...........................................................................................................................................................20-21
Special hardware .......................................................................................................................................................20-25
Common parts ...........................................................................................................................................................26-27
Special hardware .......................................................................................................................................................26-27
Common parts ...........................................................................................................................................................28-29
Special hardware .......................................................................................................................................................28-31
Common parts ...........................................................................................................................................................32-33
Special hardware .......................................................................................................................................................32-35
SAE ange, 60cc
SAE ange, 80cc
SAE ange, 110cc
Maximum displacement
End cap
Threshold/range
Charge relief
Output shaft
Common parts ...........................................................................................................................................................36-37
Special hardware .......................................................................................................................................................36-39
Common parts ...........................................................................................................................................................40-41
Special hardware .......................................................................................................................................................40-43
Common parts ...........................................................................................................................................................44-45
Special hardware .......................................................................................................................................................44-47
Maximum displacement common parts ..........................................................................................................48-49
Maximum displacement ......................................................................................................................................... 48-49
End cap, 60cc ..............................................................................................................................................................50-51
End cap, 80cc ..............................................................................................................................................................52-53
End cap, 110cc ............................................................................................................................................................54-55
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Parts Manual Series 51-1: 60cc, 80cc and 110cc Variable Displacement Motor
Contents
Control
Servo supply
Loop ushing system
Control ramp
Orice
Minimum displacement
PCOR adjuster
Electric 2-position (B1, B2, B3, B4 and B7) ........................................................................................................ 62-63
Electric 2-position (C3, C6, E0, E1, E2 and E3) .................................................................................................. 64-65
Electric 2-position (E7, F1 and F2) ....................................................................................................................... 66-67
Electric-hydraulic 2-position porportional pressure compensator (P7 and P8) .................................68-69
Electric-hydraulic 2-position pressure compensator (T1 and T2) ............................................................68-69
Electric 2-position (T5 and T7) .............................................................................................................................. 70-71
Hydraulic 2-position with pressure compensator (TH)................................................................................70-71
Electric 2-position (V0, V2 and V9) ......................................................................................................................72-73
Control ramp ..................................................................................................................................................................... 83
51*060-1 seal kit .............................................................................................................................................................. 88
51*080-1 seal kit .............................................................................................................................................................. 88
51*110-1 seal kit .............................................................................................................................................................. 89
SB-1998-086 (gasket to O-ring at housing interface) ......................................................................................... 90
SB-1999-059 (thread change on DIN shaft assemblies) .................................................................................... 91
SB-2000-044 (loop ushing spring and spring seat change) .......................................................................... 92
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Parts Manual Series 51-1: 60cc, 80cc and 110cc Variable Displacement Motor
General information
Service parts
indentication
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 Series 51-1 variable
displacement motors.
The parts listed include all parts which may be used when performing either “Minor Repairs”,
“Major Repairs” or “Conversions” on the Series 51-1motors.
NameplateEach unit will have a nameplate axed to the
housing. The nameplate will include the following
information.
Model Code
The Danfoss model code completely denes the
specic 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.
Model No./Ident No.
Model Code
Serial No.
51V080-1-R-C7-N-E1-
N-99-12-12345
Made in Germany
83010005
B1-N-N-U1-NNN038-AA-F0-00-00
The letter code indicates the location of original
manufacture (assembly). “N” indicates the unit was
originally assembled in Neumuenster, Germany.
The rst number (2 digits) indicates the year of
manufacture. (“01” would indicate the unit was
manufactured in 2001)
The second number (2 digits) indicates the calendar
week of manufacture.
The third number (5 digits) is a sequential number
used to identify a specic unit.
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Parts Manual Series 51-1: 60cc, 80cc and 110cc Variable Displacement Motor
General information
Date code
Service bulletinsA Service Bulletin Number (SB-_ _ _ _ - _ _ _) may follow the “Part Name” of the part you desire. You
Procedure to identify a partGeneral
The date code is dened 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 conguration for that item number.
You will see that there are dierent date codes for the dierent 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 L40.
Order Date Date
Code Item Begin End Part Number Part Name Usage
V L40 06-14 519021 Lip seal (SB-2005-012) 1
L40 98-06 06-13 673525 Lip seal 1
All units using this order code with a date code of 98-06 and up to and including 06-13, must use part
number “673525”. All units with a date code of 06-14 and newer must use part number “519021.”.
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 recieve them.
The modular design of L frame Reverse motors result in a simplied service parts list and part number
identication procedure.
The same item numbers are used for same part names on all units within a product type. (Example:
The lip seal - Item L40, has the same item number on all motors.)
A part number that has another number following it in parentheses is done to make this a world wide
manual. The rst number is sold in Germany. The number in parentheses is sold in the United States.
(Example: 664524 (9005110-9000), customers would order 9005110-9000 if ordering the part in the
United States.)
Example of a part identication
The nameplate on a Series 51-1 motor has an Order Code of 51V080-1 R C7 N E1 B1 N N U1 NNN 038
AA F0 00 00. Use the following procedures to determine the part number of the drive shaft used on
this motor.
1) Referring to the shaft module in the Order Code (see page 7), the shaft option for this motor is
identied by the code “C7”. (51V080-1 R C7 N E1 B1 N N U1 NNN 038 AA F0 00 00)
2) Referring to the Service Parts List, nd the shaft group. Next nd the order code that relates to this
unit, which is “C7”. The shaft is found to be item QL10 and part number 11100427 if a speed ring is not
required. The shaft is found to be item QL11 and part number 11100428 if a speed ring is required.
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Parts Manual Series 51-1: 60cc, 80cc and 110cc Variable Displacement Motor
Notes
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Parts Manual Series 51-1: 60cc, 80cc and 110cc Variable Displacement Motor
VZ
Order code
GLFM NJSTWYPK
5 1
V 0 8 0R1
-
S 12 N
NTH C
1
N
N NN0 4
0
A AE
4X
0 01 1
Product
Flange
Frame Size
End Cap
Shaft
Maximum Displacement
Control
Servo Press. Supply & Press. Comp. Override
Threshold/Range
Control Ramp
Orifice
Special Hardware
Minimum Displacement
High Pressure Setting
Charge Relief
Threshold Setting
PCOR Setting
P100 538E
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Parts Manual Series 51-1: 60cc, 80cc and 110cc Variable Displacement Motor
Variable Displacement Motor
L80
*L40
*L50C
*B80C
Prior to
N-09-46
L80
L750
L70
L035
W30
B05
W37
*QW30
W30
(ADF)
*QW30
W30
*L82
(ADA)
*QW30
W30
B70
L81
(ACB & ACG)
B50
QC05
L95
(ABA)
Q020
B10
B71
*L82
N-09-46
& beyond
L81
*QL81
W10
*B80C
*L40
L035
L80
L70
*QL81
L81
C10
E100 665E
* = included in base motor seal kit Q210
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Enlarged bold type item
numbers are recommended
part to stock for servicing.
Parts Manual Series 51-1: 60cc, 80cc and 110cc Variable Displacement Motor
Variable Displacement Motor
Cartridge ange, 60cc common parts
Order Date Date Qty. per
code Item begin end Part number Part name model/kit