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
AX00000081en-US | 520L0770 • Rev 0302 • April 2016
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
AX00000081en-US | 520L0770 • Rev 0302 • April 2016
3
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.
4
AX00000081en-US | 520L0770 • Rev 0302 • April 2016
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.
AX00000081en-US | 520L0770 • Rev 0302 • April 2016
5
Parts Manual Series 51-1: 60cc, 80cc and 110cc Variable Displacement Motor
Notes
6
AX00000081en-US | 520L0770 • Rev 0302 • April 2016
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
AX00000081en-US | 520L0770 • Rev 0302 • April 2016
7
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
8
AX00000081en-US | 520L0770 • Rev 0302 • April 2016
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
C6 QL10 98-06 11100425 Shaft, 21 tooth spline without speed ring 1
QL11 98-06 11100426 Shaft, 21 tooth spline with speed ring 1
Q030 98-06 11100632 Piston ring kit 1
D1 QL10 98-06 11100443 Shaft, 14 t. spline without speed ring (SB-1999-059) 1
QL11 98-06 11100444 Shaft, 14 tooth spline with speed ring (SB-1999-059) 1
Q030 98-06 11100632 Piston ring kit 1
D2 QL10 98-06 11100447 Shaft, 16 t. spline without speed ring (SB-1999-059) 1
QL11 98-06 11100448 Shaft, 16 tooth spline with speed ring (SB-1999-059) 1
Q030 98-06 11100632 Piston ring kit 1
S1 QL10 98-06 11100478 Shaft, 14 t. spline without speed ring 1
QL11 98-06 11100479 Shaft, 14 tooth spline with speed ring 1
Q030 98-06 11100632 Piston ring kit 1
AX00000081en-US | 520L0770 • Rev 0302 • April 2016
59
Parts Manual Series 51-1: 60cc, 80cc and 110cc Variable Displacement Motor
Variable Displacement Motor
80cc
(C6, C7, D2, D3 & S1)
QL10
QL11
QL10
Q030
Q030
Q030
with speed ring
110cc
(C8, D3, D4 & F1)
QL11
Q030
60
with speed ring
E103 210E
Enlarged bold type item
numbers are recommended
part to stock for servicing.
AX00000081en-US | 520L0770 • Rev 0302 • April 2016
Parts Manual Series 51-1: 60cc, 80cc and 110cc Variable Displacement Motor
Variable Displacement Motor
Shaft, 80cc
Order Date Date Qty. per
code Item begin end Part number Part name model/kit
C6 QL10 98-06 11110217 Shaft, 21 tooth spline without speed ring 1
QL11 98-06 11110218 Shaft, 21 tooth spline with speed ring 1
Q030 03-48 11100633 Piston ring kit (SB-2003-007) 1
Q030 98-06 03-47 11174675 Piston ring kit (SB-2017-030) 1
C7 QL10 98-06 11100427 Shaft, 23 tooth spline without speed ring 1
QL11 98-06 11100428 Shaft, 23 tooth spline with speed ring 1
Q030 03-48 11100633 Piston ring kit (SB-2003-007) 1
Q030 98-06 03-47 11174675 Piston ring kit (SB-2017-030) 1
D2 QL10 98-06 11100449 Shaft, 16 tooth spline without speed ring (SB-1999-059) 1
QL11 98-06 11100450 Shaft, 16 tooth spline with speed ring (SB-1999-059) 1
Q030 03-48 11100633 Piston ring kit (SB-2003-007) 1
Q030 98-06 03-47 11174675 Piston ring kit (SB-2017-030) 1
D3 QL10 98-06 11100451 Shaft, 18 t. spline without speed ring (SB-1999-059) 1
QL11 98-06 11100452 Shaft, 18 tooth spline with speed ring (SB-1999-059) 1
Q030 03-48 11100633 Piston ring kit (SB-2003-007) 1
Q030 98-06 03-47 11174675 Piston ring kit (SB-2017-030) 1
S1 QL10 98-06 11100481 Shaft, 14 tooth spline without speed ring 1
QL11 98-06 11100482 Shaft, 14 tooth spline with speed ring 1
Q030 03-48 11100633 Piston ring kit (SB-2003-007) 1
Q030 98-06 03-47 11174675 Piston ring kit (SB-2017-030) 1
Shaft, 110cc
C8 QL10 98-06 11100429 Shaft, 27 t. spline without speed ring (SB-1999-059) 1
QL11 98-06 11100430 Shaft, 27 tooth spline with speed ring (SB-1999-059) 1
Q030 98-06 11100634 Piston ring kit 1
D3 QL10 98-06 11100453 Shaft, 18 t. spline without speed ring (SB-1999-059) 1
QL11 98-06 11100454 Shaft, 18 tooth spline with speed ring (SB-1999-059) 1
Q030 98-06 11100634 Piston ring kit 1
D4 QL10 98-06 11100455 Shaft, 21 t. spline without speed ring (SB-1999-059) 1
QL11 98-06 11100456 Shaft, 21 tooth spline with speed ring (SB-1999-059) 1
Q030 98-06 11100634 Piston ring kit 1
F1 QL10 98-06 11100435 Shaft, 13 tooth spline without speed ring 1
QL11 98-06 11100436 Shaft, 13 tooth spline with speed ring 1
Q030 98-06 11100634 Piston ring kit 1
AX00000081en-US | 520L0770 • Rev 0302 • April 2016
61
Parts Manual Series 51-1: 60cc, 80cc and 110cc Variable Displacement Motor
Variable Displacement Motor
(B1 & B2)
QM200
(B3 & B4)
QM200
QM100
(B7)
QM200
M1
M150
M1
QM100
M1
QM100
Used prior to 03-28
G42
G36
M18
M18
M16
M18
M18
M18
M10
M16
M18
*G420
62
* = included in base motor seal kit Q210
AX00000081en-US | 520L0770 • Rev 0302 • April 2016
E100 286E
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
Electric-hyraulic 2-position control
Order Date Date Qty. per
code Item begin end Part number Part name model/kit
AX00000081en-US | 520L0770 • Rev 0302 • April 2016
Parts Manual Series 51-1: 60cc, 80cc and 110cc Variable Displacement Motor
Overhaul seal kit, S51-1 110 cc
Order Date Date Qty. per
Code Item Begin End Part Number Part Name Model/Kit
Q210 98-06 11122328 Overhaul seal kit, S51-1 110cc 1
B80C 98-06 502206 O-ring 1
B80V 98-06 729285 O-ring 1
F10 98-06 648345 Seal ring 1
F11 98-06 315242 O-ring 1
G420 03-08 512411 Gasket/O-ring seal (SB-2002-001) 1
G60 98-06 516124 End cap gasket 1
K50 98-06 001149 (9004201-6200) O-ring 1
K51 98-06 085043 (9004201-3700) O-ring 1
L40 05-41 519022 Lip seal (SB-2004-013) 1
L40 98-06 05-40 341735 Lip seal 1
L50C 98-06 10-19 507116 (9004104-1580) O-ring (SB-2009-019) 1
L50D 98-06 729285 O-ring 1
L50V 98-06 717462 O-ring 1
L82 98-06 501113 Gasket 1
M223 98-06 085043 (9004201-3700) Gasket 1
M224 98-06 732479 (9004105-0100) O-ring 1
QG20 98-06 085043 (9004201-3700) O-ring 2
QL81 98-06 039297 (9004201-1200) O-ring 2
QM180 98-06 039297 (9004201-1200) O-ring 1
QNT43 98-06 039297 (9004201-1200) O-ring 2
QW30 98-06 085043 (9004201-3700) O-ring 1
Y20 98-06 076042 Seal nut, M12 1
AX00000081en-US | 520L0770 • Rev 0302 • April 2016
89
Parts Manual Series 51-1: 60cc, 80cc and 110cc Variable Displacement Motor
O-
o
N94-42
N98-33
Service Bulletin: SB-1998-086
Products aected
Subject
DescriptionAs a joint sealing improvement, Sauer-Danfoss is changing the type of seal between the housings on
Series 51 & 51-1: 80cc cartridge motors
Change from gasket to O-ring sealing at interface between housings.
Series 51 cartridge type motors in the 80cc frame size. With this change, two O-rings are incorporated
into the design replacing the gasket. This design is similar, but with dierent size O-rings to the two
O-ring design originally used on the 80cc cartridge motor, prior to the incorporation of the speed
sensor option (see SB-1998-035). Both housings have been changed so they are not individually
interchangeable with the “gasket” design housings. The “gasket” design housings and gasket part
numbers will remain available as service parts.
and beyond
Bearing Housing
Distance ring
Retaining ring
rings
N94-42
thru
N98-32
Prior t
To
To
Gasket
Models aected
Serial numbers
Part numbers aected
Parts dispositionNon-interchangeable (as individual parts)
All 80cc Series 51 & 51-1 cartridge motors
Change became eective at serial number N-98-33-xxxxx
AX00000081en-US | 520L0770 • Rev 0302 • April 2016
Parts Manual Series 51-1: 60cc, 80cc and 110cc Variable Displacement Motor
T
Service Bulletin: SB-1999-059
Products aected
Subject
Description
Series 51: 60cc, 80cc, 110cc, and 160cc motors
Thread change at customer end of DIN shaft assemblies.
As a product improvement, Sauer-Danfoss has changed the threaded hole at the customer end of DIN
shaft assemblies to metric threads. Metric shaft assemblies will now have a metric threaded hole. To
aid in identifying this change, new shaft assembly part numbers have been released. The new shaft
assemblies are interchangeable with the previous shaft assemblies. The previous shaft assembly part
numbers will become obsolete.
DIN configuration
hreaded hole
Cartridge configuration
Models aected
Serial numbers
Part numbers aected
Parts disposition
All 60, 80, 110, and 160cc motors (Series 51 and 51-1) with DIN shaft assemblies
See table below
Frame Shaft Previous New Bolt size Bolt size Eective after
size code p/n p/n FROM TO serial number
AX00000081en-US | 520L0770 • Rev 0302 • April 2016
91
Parts Manual Series 51-1: 60cc, 80cc and 110cc Variable Displacement Motor
From:
T
Service Bulletin: SB-2000-044
Products aected
Subject
Description
All Series 51 & 51-1 motors
Change to spring and spring seat at ends of loop ushing shuttle spool.
As a product improvement, and to ease assembly, the spring and spring seat at the ends of the loop
ushing shuttle spool have been changed. The new spring and spring seat clip together. The old
spring and spring seat are interchangeable with the new spring and spring seat as an assembly only.
The old spring seat will become obsolete and no longer available as a service part. The old spring will
remain available as a service part.
o:
Models aected
Serial numbers
Part numbers aected
Parts disposition
92
All Series 51 and 51-1 variable motors
This change became eective at serial number N-00-50-xxxxx
From: Spring part number 4350286 and spring seat part number 4800353
To: Spring seat assembly part number 513596
Interchangeable - as an assembly only
AX00000081en-US | 520L0770 • Rev 0302 • April 2016
Parts Manual Series 51-1: 60cc, 80cc and 110cc Variable Displacement Motor
Service Bulletin: SB-2001-015
Products aected
Subject
Description
All Series 51 & 51-1 motors
Incorporation of symmetrical rollers on the synchronizing shaft
As a product improvement and to improve ease of assembly, Sauer-Danfoss has changed the design
of the rollers used on the synchronizing shaft in Series 51 and 51-1 motors. The new rollers are
symmetrical, in that they can be assembled either direction on the synchronizing shaft. The old rollers
were asymmetrical and had to be assembled only one way. The synchronizing shaft has also been
changed to accept the symmetrical rollers. The legs for the rollers are now longer in length.
A service kit is available to replace the old design synchronizing shaft and rollers, which are obsolete
and no longer available as service parts. The pins at each end of the synchronizing shaft are still the
same parts.
Old Style New Style
Models aected
Serial numbers
Part numbers aected
Parts disposition
All Series 51 and 51-1 motors
Eective after N-01-39-xxxxx
Frame size Old kit part number New kit part number
Interchangeable; as an assembly only
Use parts in stock
AX00000081en-US | 520L0770 • Rev 0302 • April 2016
93
Parts Manual Series 51-1: 60cc, 80cc and 110cc Variable Displacement Motor
O-ring spotface
506754 for 110-1
Service Bulletin: SB-2002-001
Products aected
Subject
Description
All Series 51 & 51-1 motors
Sealing change to end cap/control interface
The sealing is improved between the end cap and controls or multi-function blocks on all Series 51
and 51-1 motors. This change replaces individual O-rings with a gasket that incorporates imbedded
rubber seal rings.. The O-ring spot faces are removed from the end cap mounting face. There is no
change to controls’ and multi-function blocks’ sealing surface.
New end cap part numbers allow better control of this change. Old end cap part numbers are
obsolete. You cannot use the new gasket with old end caps and you cannot use the O-rings with new
end caps. Control and multi-function block kit now include the O-rings and the new gasket.
Old style
(with O-ring spotface)
(without O-ring spotface)
New style
Mounting
surface
O-rings
(3) 754580
O-rings
634968 for 60, 80, and 110
364976 for 160
707737 for 250
364976 for 60-1
507998 for 80-1
O-rings
(3) 79273
Mounting
surface
Gasket
94
AX00000081en-US | 520L0770 • Rev 0302 • April 2016
Parts Manual Series 51-1: 60cc, 80cc and 110cc Variable Displacement Motor
Service Bulletin: SB-2002-001
Models aected
Serial numbers
Part numbers aected
All Series 51 and 51-1 motors
See table below
End cap Frame Old part New part Manufacture Gasket
code size number number date code part number
R and T 60 504226 516057 N-03-14-xxxxx 511810
A 60 504228 515695 N-03-12-xxxxx 511810
R 60-1 506563 516902 N-03-39-xxxxx 512411
A 60-1 506564 516905 N-03-28-xxxxx 512411
H 60-1 510643 516920 N-03-28-xxxxx 512411
R and T 80 504230 515056 N-03-14-xxxxx 511810
A 80 504232 515696 N-03-27-xxxxx 511810
R 80-1 507976 516903 N-03-39-xxxxx 512411
A 80-1 507977 516907 N-03-39-xxxxx 512411
H 80-1 507978 516921 N-03-39-xxxxx 512411
R and T 110 504235 516058 N-03-14-xxxxx 511810
A 110 504237 513592 N-03-01-xxxxx 511810
R 110-1 506601 516904 N-03-39-xxxxx 512411
A 110-1 506602 515697 N-03-39-xxxxx 512411
H 110-1 510634 516923 N-03-39-xxxxx 512411
R 160 504239 516059 N-03-07-xxxxx 511851
A 160 504242 513543 N-03-01-xxxxx 511851
R 250 504244 516060 N-03-07-xxxxx 511851
A 250 504246 513544 N-03-08-xxxxx 511851
Parts disposition
Non-interchangeable;
Order replacement parts
AX00000081en-US | 520L0770 • Rev 0302 • April 2016
95
Parts Manual Series 51-1: 60cc, 80cc and 110cc Variable Displacement Motor
Piston ring kit
Previous design
New design
Service Bulletin: SB-2003-007
Products aected
Subject
Description
Series 51 and 51-1: 80cc, motors
Piston ring
The piston ring design has changed in all Series 51 - 80 cc motor shaft assemblies. There are now three
thin rings in the piston ring groove. The piston ring groove has also changed to accommodate the new
rings. The piston ring groove is now slightly narrower and deeper. The old rings will not t into the new
pistons and the new rings will not t into the old pistons. The old piston ring kits will remain available
for service parts.
Piston ring kit
Models aected
Serial numbers
Part numbers aected
Parts dispositionNon-interchangeable;
96
All Series 51 and 51-1, 80 cc motors
This change became eective with serial number N-03-47-xxxxx
New piston ring kit p/n 516275
Old piston ring kit p/n 771162
The shaft assembly part numbers remain the same.
AX00000081en-US | 520L0770 • Rev 0302 • April 2016
Parts Manual Series 51-1: 60cc, 80cc and 110cc Variable Displacement Motor
Old gasketNew gasket
Service Bulletin: SB-2004-004
Products aected
Subject
Description
All Series 51 and 51-1 motors
End cap change
Sauer-Danfoss has made a quality improvement change to the gasket sealing the end cap and
housing joint. The gasket changed from paper to a rubber coated metal gasket with a raised bead
to aid sealing properties. The new gasket is interchangeable with the old gasket. The old gasket will
become obsolete and no longer available for service.
Models aected
Serial numbers
Part numbers aected
Parts disposition
Series 51 and 51-1 motors, all sizes (60, 80, 110, 160, and 250 cc)
This change became eective at series numbers: N-05-48-xxxxx = 60 cc
N-04-19-xxxxx = 80 cc
N-05-48-xxxxx = 110 cc
N-04-21-xxxxx = 160 cc
N-04-36-xxxxx = 250 cc
Frame size Old part number New part number
60 cc 501198 515733
80 cc 501199 517237
110 cc 501200 516124
160 cc 501201 519806
250 cc 501202 515735
Interchangeable;
Revise exiting part orders
AX00000081en-US | 520L0770 • Rev 0302 • April 2016
97
Parts Manual Series 51-1: 60cc, 80cc and 110cc Variable Displacement Motor
SAE
Service Bulletin: SB-2004-013
Products aected
Subject
Description
Series 51; 110, 160 & 250 cc motors and 51-1; 110 cc motors
New shaft lip seal
As a product improvement, Sauer-Danfoss is changing the shaft lip seal in the series 51; 110, 160, &
250 cc motors and in the series 51-1; 110 cc motors. The new seal requires a change to the mounting
ange seal bore in SAE & DIN ange options, and the seal carrier used in cartridge motors. The seal
carrier assembly part number does not change and is interchangeable with previously built cartridge
motors.
The old mounting ange and seal carrier will become obsolete and no longer available. The old lip seal
will remain available for service.
Mounting flange
Lip seal
Lip seal
Seal carrier
assembly
DIN
Bearing housing
Mounting flange
Models aected
Serial numbers
Part numbers aected
Parts disposition
Cartridge
Lip seal
All series 51 -110, 160, and 250 cc motors and 51-1 -110 cc motors.
This change became eective at serial number: N-05-45-xxxxx
Frame size Old ange New ange Old seal New seal
51D110 (DIN) 774737 520316 341735 519022
51V110 (SAE) 366534 520319 341735 519022
51D160 (DIN) 510543 520317 341735 519022
51D160 (SAE) 356261 519417 341735 519022
51V250 (SAE) 511051 519418 341735 519022
Non-interchangeable
Use parts in stock
Order replacement parts
Revise existing part orders
98
AX00000081en-US | 520L0770 • Rev 0302 • April 2016
Parts Manual Series 51-1: 60cc, 80cc and 110cc Variable Displacement Motor
Lip seal
Mounting flange
Service Bulletin: SB-2005-012
Products aected
Subject
Description
Series 51 & 51-1 60 and 80cc motors (SAE & DIN ange only)
Shaft seal change
Sauer-Danfoss is continuing to globalize its entire product line. The change to a new shaft seal in the
series 51 and 51-1; 60 and 80 cc motors with SAE or DIN mounting ange is part of this eort. The new
seal is not interchangeable with the old seal. The new seal has a smaller diameter ( 60 mm instead of
63.5 mm). The mounting ange has also changed to accept the new seal. The old anges will become
obsolete and no longer available for service. The old seal will remain available for service.
Models aected
Serial numbers
Part numbers aected
Parts disposition
All series 51 and 51-1; 60 and 80 cc motors with SAE or DIN mounting ange
This change became eective at serial number N-06-13-xxxxx.
Old part number New part number Description
673525 / 9008000-0114 519021 Seal
763540 520318 Flange, 60cc, SAE
754895 / 521619 519195 Flange, 80cc, SAE
764076 / 521618 11000888 Flange, 80cc, SAE
775973 520314 Flange, 60cc, DIN
776039 520315 Flange, 80cc, DIN
Non-interchangeable;
Order replacement parts
AX00000081en-US | 520L0770 • Rev 0302 • April 2016
99
Parts Manual Series 51-1: 60cc, 80cc and 110cc Variable Displacement Motor
t retainer plug
Seal retaining ring
Old designNew design
Service Bulletin: SB-2009-005
Products aected
Subject
Description
Series 51 & 51-1 80 cc cartridge motors
Redesign of bearing housing
In an eort to communize the assembly of bent axis motors, the cartridge bearing housing for the
series 51 and 51-1 motors has been changed. The new design uses two special plugs to retain the
shaft assembly in the housing rather than a spacer ring and retaining ring. The shaft seal hardware
has also changed. The new seal design has the lip seal pressed directly into the housing and held in
place with a single retaining ring. The old seal design had an O-ring on a seal carrier assembly with
two retaining rings holding the seal carrier in place. The lip seal does not change. The new housing
will have improved clearances for use in dierent planetary gearboxes. The old and new housings are
not interchangeable. The old housing, spacer ring, spacer retaining ring, seal carrier assembly and
retaining rings that held the seal carrier in place will remain available for service..
Lip seal
Seal carrier O-ring
Seal retaining ring
Seal carrier assembly
Seal retaining ring
Lip seal
Shaft retainer plug
Bearing housing
Models aected
Serial numbers
Part numbers aected
Parts disposition
Spacer ring
Spacer retaining ring
All series 51 and 51-1 80cc Cartridge motors.
This change became eective at serial number N09-51-XXXXX. (14 Dec 2009)
Description Old part number Replacement part number
Bearing housing 11009204 11038245
Spacer retaining ring 501120 11056747 (retainer plugs)(2)
Seal carrier assembly 510482 No longer used
Lip seal 519021 No Change
Seal retaining ring 392456 (2) 915280 (1)
Spacer ring 501116 No longer used
Seal carrier O-ring 501879 No longer used
Non-interchangeable
Use parts in stock for repair of units built before serial number N09-46-xxxxx
Order replacement parts
Revise existing part orders
Shaf
Bearing housing
100
AX00000081en-US | 520L0770 • Rev 0302 • April 2016
Loading...
+ hidden pages
You need points to download manuals.
1 point = 1 manual.
You can buy points or you can get point for every manual you upload.