Hägglunds Compact CA Manual

Installation and
Maintenance
Manual
Compact CA Motors

Installation and Maintenance Manual
Compact CA
EN411-18h 2011

4
Installation and Maintenance Manual, Compact CA
Preface
This Installation and Maintenance Manual is valid
for motors manufactured after 2003-06-01. For old-
er motors please contact your Hägglunds Drives
representative.
Original EN411-17h, 2010
Preface
Hägglunds Drives is one of the worlds leading manufacturers of large hydraulic
Drive Systems. A leading position, made possible by unbeatable service spirit
and of continuing development of both products and markets all over the world.
Our drives are to be found in most industrial and marine segments, where
there are extremely high demands for efficiency and reliability. Our main office
and production plant is in Mellansel, Sweden and we have our own sales- and
representation offices in some 40 different countries.
Our high quality Drive Systems, are based upon our unique hydraulic piston
motors, developed through a wealth of experience accumulated over 40 years
in marine and industrial areas. Today this ongoing development work has re-
sulted in the powerful COMPACT industrial motor. New, as well as established
technical solutions, contribute to the creation of this product. The most desirable
features and operating reliability have been designed in this hydraulic motor.
This manual provides necessary information for installation and maintenance
of the motor. In order to find particular information, just search for the wanted
section as listed in the table of contents. However, changes in the equipment
may occur. We therefore reserve the right to introduce amendments in the
manual as we deem necessary without notice or obligations.

5
Installation and Maintenance Manual, Compact CA Contents
Contents
Preface.................................................................... 4
1 General .................................................................... 6
1.1 Safety precautions............................................................ 6
1.2 Motor data.................................................................. 7
1.3 Functional description......................................................... 8
2 Technical data .............................................................. 9
2.1 Recommended charge pressure................................................. 9
2.2 Sound from a complete installation.............................................. 10
2.3 Choice of hydraulic fluid ...................................................... 11
Environmentally acceptable fluids............................................... 12
3 Installation................................................................ 13
3.1 Mounting instructions ........................................................ 13
Spline .................................................................... 14
Thread for mounting tool...................................................... 14
3.1.1 Lifting methods ............................................................. 15
Standing the motor on a flat surface ............................................. 17
3.1.2 Mounting the coupling onto the motor shaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Instruction to follow when mounting the COMPACT CA motor on a driven shaft . . . . . . . . . . . 18
3.1.3a Fitting the torque arm to the motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.1.3b Fitting the double ended torque arm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.1.4a Mounting the motor onto the driven shaft - shaft coupling . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.1.4b Mounting the motor onto the driven shaft - splines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
3.1.5 Removing the motor from the driven shaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
3.1.6 Mounting the reaction point.................................................... 28
3.1.7 Brake MDA ................................................................ 29
3.1.8 Control of braking torque...................................................... 29
3.1.9 Installation of MDA hydraulics.................................................. 30
3.1.10 Brake MDA 5, 7 & 10......................................................... 31
3.1.11 Mounting MDA 5, 7 & 10...................................................... 32
3.1.11 Reduction of brake torque..................................................... 32
Disassembly of MDA 5, 7 &10. ................................................. 33
3.1.13 Brake MDA 14 & 21.......................................................... 34
3.1.14 Mounting MDA 14 & 21....................................................... 35
Flange mounted brakes....................................................... 35
Torque arm mounted brakes................................................... 35
Spline .................................................................... 37
3.1.14 Reduction of brake torque..................................................... 37
Disassembly and assembly of MDA 14 & 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
3.1.16 Motors with 2-speed valve..................................................... 39
Mounting of 2-speed valve on CA 50-210 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
3.2 Oil connections ............................................................. 40
3.2.1 Direction of rotation of motor shaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Motor with displacement shift valve.............................................. 42
3.2.2 Draining and venting the motor................................................. 43
3.2.3 Flushing................................................................... 44
4 Operating instructions ...................................................... 44
4.1 Storage ................................................................... 44
4.2 Before commissioning........................................................ 45
4.3 Commissioning ............................................................. 45
4.4 Periodic maintenance ........................................................ 46
4.4.1 Cleaning and care........................................................... 46
4.4.2 Motor..................................................................... 46
4.4.3 Filters..................................................................... 47
4.4.4 Oil (Se also 2.3)............................................................. 47
4.5 Oil inspection............................................................... 48
5 Fault finding............................................................... 49
6 Declaration of incorporation ................................................. 51

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Installation and Maintenance Manual, Compact CA
1 General
1.1 Safety precautions
It is of high importance that the Safety precautions are always followed, if you
are unsure about something, please do not hesitate to contact your nearest Häg-
glunds office for advice.
Warning signs
In this manual you will find the following signs which indicate a potential hazard, which can or will
cause personal injury or substantial property damage. Depending on the probability of the hazard,
and how serious the injury or property damage could be, there are three levels of classification.
General
WARNING is used to indicate the presence of a hazard
which can cause severe personal injury, death, or substantial
property damage if the warning is ignored.
DANGER is used to indicate the presence of a hazard
which will cause severe personal injury, death, or substantial
property damage if the warning is ignored.
CAUTION is used to indicate the presence of a hazard
which will or can cause minor personal injury or property
damage if the warning is ignored.
Application area
All new and rebuild applications, should always be approved and supervised by Hägglunds per-
sonnel.
Mounting
Carefully follow the instructions and be aware of the high weights and forces during lifting.
Before starting up
Before starting up new, rebuild or just worked on applications, all accessories and safety arrange-
ments functions, should be controlled/tested.
Periodic maintenance
Notice the intervals in maintenance chart (4.4) and keep a record.
Dismounting
Carefully follow the instructions and be aware of the high weights and forces during lifting.

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Installation and Maintenance Manual, Compact CA
Motor type FULL DISPLACEMENT Max. **
pressure
DISPLACEMENT SHIFT
Displace-
ment
Specific
torque
Rated
speed
Max. ***
speed
Displace-
ment
Specific
torque
Rated
speed
Max.
speed
Ratio
Vi in3/rev Ts lbf*ft/
1000psi n rpm n rpm p psi Vi in3/rev Ts lbf*ft/ 1000psi n rpm n rpm
CA 50 20 76.6 1017 400 400 5000
Not recommended to be used in
reduced displacement
CA 50 25 95.8 1271 350 400 5000
CA 50 32 122.6 1627 280 400 5000
CA 50 40 153.3 2034 230 350 5000
CA 50 191.6 2543 200 280 5000 95.8 1271 200 280 1:2
CA 70 40 153.3 2034 270 400 5000
CA 70 50 191.6 2543 225 320 5000 95.8 1271 225 320 1:2
CA 70 60 230.1 3051 195 275 5000 115.1 1526 195 275 1:2
CA 70 268.5 3560 180 240 5000 134.3 1780 180 240 1:2
CA 100 40 153.3 2034 390 400 5000
CA 100 50 191.6 2543 320 400 5000
CA 100 64 245.3 3254 260 390 5000
CA 100 80 306.6 4068 220 310 5000 153.3 2034 220 310 1:2
CA 100 383.2 5085 190 270 5000 191.6 2543 190 270 1:2
CA 140 80 306.6 4068 245 340 5000
CA 140 100 383.2 5085 205 275 5000 191.6 2543 205 275 1:2
CA 140 120 460.3 6102 180 245 5000 230.1 3050 180 245 1:2
CA 140 537 7119 170 220 5000 268.5 3560 170 220 1:2
CA 210 160 613.2 8136 105 150 5000 306.7 4068 105 150 1:2
CA 210 180 690.4 9154 100 135 5000 345.2 4577 100 135 1:2
CA210 805.5 10678 85 115 5000 402.8 5339 85 115 1:2
Motor type FULL DISPLACEMENT Max. **
pressure
DISPLACEMENT SHIFT
Displace-
ment
Specific
torque
Rated
speed
Max.***
speed
Displace-
ment
Specific
torque
Rated
speed
Max.
speed
Ratio
Vi cm3/rev Ts Nm/bar n rpm n rpm p bar Vi cm3/rev Ts Nm/bar n rpm n rpm
CA 50 20 1256 20 400 400 350
Not recommended to be used in
reduced displacement
CA 50 25 1570 25 350 400 350
CA 50 32 2010 32 280 400 350
CA 50 40 2512 40 230 350 350
CA 50 3140 50 200 280 350 1570 25 200 280 1:2
CA 70 40 2512 40 270 400 350
CA 70 50 3140 50 225 320 350 1570 25 225 320 1:2
CA 70 60 3771 60 195 275 350 1886 30 195 275 1:2
CA 70 4400 70 180 240 350 2200 35 180 240 1:2
CA 100 40 2512 40 390 400 350
CA 100 50 3140 50 320 400 350
CA 100 64 4020 64 260 390 350
CA 100 80 5024 80 220 310 350 2512 40 220 310 1:2
CA 100 6280 100 190 270 350 3140 50 190 270 1:2
CA 140 80 5024 80 245 340 350
CA 140 100 6280 100 205 275 350 3140 50 205 275 1:2
CA 140 120 7543 120 180 245 350 3771 60 180 245 1:2
CA 140 8800 140 170 220 350 4400 70 170 220 1:2
CA 210 160 10051 160 105 150 350 5026 80 105 150 1:2
CA 210 180 11314 180 100 135 350 5657 90 100 135 1:2
CA 210 13200 210 85 115 350 6600 105 85 115 1:2
US
General
Table 1.1
Metric
1.2 Motor data
* Related to a required charge pressure of 12 bar/175 psi for motors in braking mode. (Special considerations regard-
ing charge pressure, cooling and choice of hydraulic system for speeds above rated, 4 ports must be used).
** The motors are designed according to DNV-rules. Test pressure 420 bar/6000 psi. Peak/transient pressure 420
bar/6000 psi maximum, allowed to occur 10000 times.
*** Speed above 280 rpm requires viton seals. Max permitted continuous case pressure is 2 bar.

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Installation and Maintenance Manual, Compact CA
1.3 Functional description
1
2
3
4
5
6
7
D
8
A, C
Figure 1 The COMPACT CA motor
10
9
11
Hägglunds hydraulic industrial motor COM-
PACT CA is of the radial-piston type with a
rotating cylinder block/hollow shaft and a sta-
tionary housing. The cylinder block is mounted
in fixed roller bearings in the housing. An even
number of pistons are radially located in bores
inside the cylinder block, and the valve plate
directs the incoming and outgoing oil to and
from the working pistons. Each piston is work-
ing against a cam roller.
When the hydraulic pressure is acting on the
pistons, the cam rollers are pushed against the
slope on the cam ring that is rigidly connected
to the housing, thereby producing a torque.
The cam rollers transfer the reaction force to
the piston which are guided in the rotating cyl-
inder block. Rotation therefore occurs, and the
torque available is proportional to the pressure
in the system.
Oil main lines are connected to ports A and C
in the connection block and drain lines to ports
D1, D2 or D3 in the motor housing.
The motor is connected to the shaft of the
driven machine through the hollow shaft of
the cylinder block. The torque is transmitted by
using a mechanical shaft coupling, or alterna-
tively by splines.
The symmetrical design of the motor has made
it possible to design it as a two displacement
motor. This means that two different speeds
can be obtained for a given flow. The simplest
way of performing displacement change is by
connecting a special valve, direct to the flange
face on the connection block.
Valid patents
US 4522110, US 005979295A, SE 9101950-5,
EP 0102915, JP 83162704, GB 1524437, EP
NL 0524437, EP:DE 69211238.3.
Quality
To assure our quality we maintain a Quality
Assurance system, certified to standard ISO
9001, EN 29001 and BS 5750; Part 1.
General
1. Cam ring
2. Cam roller
3. Piston
4. Shaft coupling
5. Cylinder block /
hollow shaft
6. Cylinder block / spline
7. Front end cover
8. Cylindrical roller
bearing
9. Connection block
10. Valve plate
11. Axial bearing
A = inlet or outlet port »A«
C = inlet or outlet port »C«
D = drain port
F4 = Flushing
F4

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Installation and Maintenance Manual, Compact CA
There are three distinct cases:
Case 1:
The motor works in braking mode. Required
charge pressure at the inlet port is according
to diagram below.
Case 2:
The motor works in driving mode only. Required
back pressure at the outlet port corresponds to
30% of value given in diagram below, but may
not be lower than 2 bar (29 psi).
Case 3:
The motor is used with 2-speed valve. Re-
quired charge pressure at inlet port for
valve is according to AC-3.1 Accessories.
Note:
The diagram is valid for 1 bar (15 psi) case pressure. With increasing case pressure the charge
pressure must be increased accordingly. The graph is valid when 4 ports are used. Max casing
pressure is 3 bar (43.5 psi) (for 1% of the operation time evenly divided, pressure peaks of max 5
seconds up to 8 bar (116 psi) is allowed). Max permitted case pressure at stand-still is 8 bar (116
psi).
Technical data
2 Technical data
2.1 Recommended charge
pressure
The hydraulic system must be such that the
motor will receive sufficient charge pressure at
the low-pressure port. This applies to all types
of installations.
In hanging load applications, charge
pressure at motors connection must
be according to graph below under
all conditions.
Table 2.1 Charge pressure
RECOMMENDED CHARGE PRESSURE - COMPACT CA MOTORS
Double port connection (4 ports) oil viscosity 40 cSt / 187 SSU
Compact motors Double port connection (4 ports)
0
2
4
6
8
10
12
14
16
18
20
0 50 100 150 200 250 300 350 400
Speed (rpm)
Recommended charge pressure (bar)
0
50
100
150
200
250
Recommended charge pressure (psi)
CA 210
CA 210-180
CA 210-160
CA 140 CA 70, CA 100, CA 140-120 CA 50, CA 70-60
CA 100-80, CA 140-100
CA 140-80
CA 70-50, CA 50-40
CA 100-64
CA 50-32
CA 70-40
CA 100-50
CA 50-32
CA 100-40
CA 50-20

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Installation and Maintenance Manual, Compact CA
2.2 Sound from a complete installation
Technical data
Hydraulic motor
The hydraulic motor is a known noise level.
(Tables of sound data - see subsection 4.9 in
the Engineering Manual).
Driven unit
The driven unit is an unknown sound source
(for us) but can through certain information
probably be obtained from the supplier. When
securing the torque arm of a hydraulic motor to
the foundation or casing of a driven machine,
it is highly important to study the construction
of the foundation or casing. This may well be
the most important factor to consider, since
many structures may give rise to resonance,
resulting in severe noise problems.
Remarks:
Background noise
The background noise can not normally be
influenced but is usually known or easy to
measure.
Pump unit
The pump unit is a known noise level.
Pipe noise
The pipe noise is probably the source of the
majority of mistakes in installations: all pipe
clamps should be of vibration insulating type
secured to concrete ceiling, wall or floor. Secur-
ing to non-rigid metal structures or structures is
likely to give resonance and should be avoided.
Background noise
Pump
motor
Pipe
noise
Hydraulic
motor
Noise from
driven unit
Foundation and construction noise

11
Installation and Maintenance Manual, Compact CA Technical data
2.3 Choice of hydraulic fluid
The Hägglunds hydraulic motors are primarily designed to operate on conventional petroleum based
hydraulic oils. The hydraulic oil can be chosen in consultation with the oil supplier of your local sales
office, bearing the following requirements in mind:
GENERAL
The oil shall have FZG (90) fail stage minimum 11 described in IP 334 (DIN 51354). The oil must also
contain inhibitors to prevent oxidation, corrosion and foaming. The viscosity of mineral oil is highly de-
pendent of the temperature. The final choice of oil must depend on the operating temperature that can
be expected or that has been established in the system and not in the hydraulic tank. High temperatures
in the system greatly reduce the service life of oil and rubber seals, as well as resulting in low viscosity,
which in turn provides poor lubrication. Content of water shall be less than 0.1%. In Industrial applica-
tions with high demands for service life, the content of water shall be less than 0.05%.
Viscosity index = 100 is recommended. Viscosity index =150 can be used for operation with large tem-
perature difference, however many hydraulic fluids are subject to temporary and permanent reductions
of the viscosity. Hägglunds recommendation is always to use the base oil viscosity when calculating the
rated life and max allowed power. For heavy-duty applications we recommend synthetic oils.
Fire resistant fluids
OPERATING WITH FIRE RESISTANT FLUIDS
The following fluids are tested for Hägglunds motors: (ISO/DP 6071)
* Low viscosity gives reduced service life for the motors.
Max permitted viscosity is 10000 cSt/48000 SSU
IMPORTANT!
Down rating of pressure data and service life must be considered when using fire re-
sistant fluid. The Hägglunds company or its authorised representative must always be
contacted for approval in the case of these types of fluids.
Recommended viscosity in motor case
at operating temperature
40-150 cSt/187-720 SSU.
For speed below 5 rpm, coated pistons
shall be used, please contact your
Hägglunds representative.
* Must be specified in the order.
Temperature limits
Normal operating temperature should be less
than +50 °C (122 °F)
Nitrile seals (std motor)
Viton seals
-35 °C to +70 °C
-20 °C to +100 °C
Nitrile seals (std motor)
Viton seals
-31 °F to +158 °F
-4 °F to +212 °F
Fluid Approved Seals Internal paint
HFA: Oil (3-5%) in water emulsion No - -
HFB: Inverted emulsion 40-45% water in oil Yes Nitrile (std motor) Not painted*
HFC: Water-glycol Yes Nitrile (std motor) Not painted*
HFD synthetic fluids
HFD:R - Phosphate esters Yes Viton Not painted*
HFD:S - Chlorinated hydrocarbons Yes Viton Not painted*
HFD:T - Mixture of the above Yes Viton Not painted*
HFD:U - Other compositions Yes Viton Not painted*
Minimum viscosity limits at operating temperature in motor case
Standard motors with uncoated pistons and uncoated cam rollers 20 cSt/98 SSU*
Motors type C (coated pistons and coated cam rollers) for speed below 5 rpm or when
charge pressure exceeds 50 bar (725 psi) at speed above 100 rpm
10 cSt/59 SSU*

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Installation and Maintenance Manual, Compact CA
Environmentally acceptable fluids
Explanation of
"GRADE OF FILTRATION"
Grade of filtration ß10=75 indicates the fol-
lowing:
ß10 means the size of particle ≥10 µm that will
be removed by filtration.
=75 means the grade of filtration of above men-
tioned size of particle. The grade of filtration is
defined as number of particles in the oil before
filtration in relation to number of particles in the
oil after filtration.
Ex. Grade of filtration is ß10=75.
Before the filtration the oil contains N number
of particles ≥10 µm and after passing the filter
once the oil contains
N
75
number of particles
≥10 µm.
This means that
=74·
N
75
N
75
N
number of
particles have been filtered (=98.6%).
* Vegetable fluids give good lubrication and small change of viscosity with different temperature. Vegetable fluids must
be controlled every 3 months and temperature shall be less than +45 °C (113 °F) to give good service life for the
fluid.
** Environmental acceptable fluid gives the same service life for the drive, as mineral oil.
*** The fluid shall have less than 10g/100g according to ASTMD 1958-97/DIN 53241
Technical data
Filtration
The oil in a hydraulic system must always be
filtered and also the oil from your supplier has
to be filtered when adding it to the system.
The grade of filtration in a hydraulic system is
a question of service life v.s. money spent on
filtration.
In order to obtain stated service life it is impor-
tant to follow our recommendations concerning
contamination level.
When choosing the filter it is important to
consider the amount of dirt particles that the
filter can absorb and still operate satisfactory.
For that reason we recommend a filter with an
indicator that gives a signal when it is time to
change the filter cartridge.
Filtering recommendations
Before start-up, check that the system is thor-
oughly cleaned.
1. For industrial applications the contamina-
tion level should not exceed ISO 4406:1999
18/16/13 (NAS 1638, class 7).
2. When filling the tank and motor case, we
recommend the use of a filter with the grade
of filtration ß10=75.
Fluid Approved Seals Internal paint
Vegetable */** Fluid HTG Yes Nitrile (std motor) -
Synthetic **/*** Esters HE Yes Nitrile (std motor) -

13
Installation and Maintenance Manual, Compact CA
3 Installation
Figure 3.1
Normally-loaded shaft
In drives with only one direction of rotation
where the stresses in the shaft are moderate,
the shaft can be plain, see figure 3.2 and tables
3.1 and 3.4
Figure 3.2
Note! The dimensions are valid for +20 °C (68 °F)
0
-0.025
0
-0.00098
0
-0.025
0
-0.00098
0
-0.025
0
-0.00098
E
C
A
D
30°
Max. R 3,2
G
F
6±0,5
B±0,5
(B±0,02)
(0,24±0,02) R 50
(R 1,97)
a
3.1 Mounting instructions
If the motor is to work properly it must be
installed with the greatest possible precision.
Every item connected to the motor that does
not meet the requirements of the following in-
structions may result in stresses that adversely
affect the service life of the motor.
Normally the motor must be completely filled
with oil. When the motor is installed with the
shaft in the horizontal plane, the drain ports
must be positioned vertically. The higher of the
two drain ports must be used: see figure 3.25.
When the motor is mounted with the shaft in
the vertical plane, drain outlet D1 or D2 must
be connected to the drain hole on the shaft
end housing or end cover. A preloaded check
valve must be connected in the drain line to
ensure that the motor is filled with oil; see 3.2.2
"Draining and venting the motor".
The drain line must be dimensioned so that
maximum 3 bar (43.5 psi) motor housing pres-
sure is not exceeded.
The maximum housing pressure is 3 bar (43.5
psi). Brief peaks during operation up to 8 bar
(116 psi) are permissible. The permitted hous-
ing pressure when the motor is stationary is 8
bar (116 psi).
The motor must always be connected in such
a way as to give a sufficient boost, make-up
flow at the low pressure connection. This is
particularly important at high speeds and
with rapid reversing, see 2.1 "Recommended
charge pressure".
Installation
Table 3.2
Table 3.1 Valid for couplings
E
A
D
30°
G
F
6±0,5
(0,24±0,02)
Max. R 3,2
a
Unidirectional drives
Bidirectional drives
Steel with yield strength = 300 N/mm
Rel
Steel with yield strength = 450 N/mm Rel
Dim CA50/70 CA100/140 CA210
A mm
in
120
4.7244
140
5.5118
160
6.2992
B mm
in
71.5
2.81
84.5
3.33
105
4.13
C mm
in
116
4.57
133
5.24
153
6.02
Design of driven shaft end on heavily-
loaded shaft
Where the driven shaft is heavily loaded and
is subject to high stresses, for example on
changes in the direction of rotation, it is rec-
ommended that the driven shaft should have
a stress relieving groove; see figure 3.1 and
tables 3.1 and 3.4.

14
Installation and Maintenance Manual, Compact CA
Motor CA50/70 CA100/140 CA210
Tooth profile
and bottom
form
DIN 5480 DIN 5480 DIN 5480
Tolerance 8f 8f 8f
Guide Back Back Back
Pressure angle 30° 30° 30°
Module 5 5 5
Number of
teeth 22 26 28
Pitch diameter Ø 110 Ø 130 Ø 140
Minor diameter Ø 109 Ø 129 Ø 139
Major diameter Ø 119 Ø139 Ø 149
Measure over
measuring pins 129.781 149.908 159.961
Diameter of
measuring pins Ø 10 Ø 10 Ø 10
Addendum
modification
X M +2.25 +2.25 +2.25
Spline Thread for mounting tool
0
-1.62
0
-0.250
-0.083
-0.147
-0.085
-0.150
0
-1.62
0
-0.220
0
-0.250
0
-1.62
Table 3.3
-0.085
-0.150
The splines shall be lubricated with hydraulic
oil, or filled with transmission oil from the con-
nected gearbox. To avoid wear in the splines,
the installation must be within the specified tol-
erances in table 3.3. If there is no radial or axial
force on the shaft, the shaft can be oiled only.
For production of the shaft, see 278 2230,
278 2231, 278 2232, 278 2233, 278 2234, 278
2235, 278 2236, 278 2238 and 278 2239. For
control of spline see table 3.3.
To make it easier to mount the motor on the
driven shaft end or to remove the motor from
the shaft it is recommended that a hole (table
3.4) should be drilled and tapped in the cen-
tre of the shaft for a mounting tool; see 3.1.4
"Mounting the motor onto the driven shaft",
and 3.1.5 "Removing the motor from the driven
shaft".
The tool has both a UNC thread and a metric
thread, so that the hole can be drilled and
tapped to conform to one of the two alternatives
given in table 3.4.
Installation
Fig 3.3
Table 3.4 Alternative thread (figure 3.1 and 3.2)
Unidirectional drives
Bidirectional drives
Steel with yield strength Relmm= 450 N/mm2
Steel with yield strength Relmm= 700 N/mm2CA 50-210
D
E
F
G
M20
>17 (0.67)
25 (0.98)
50 (1.97)
UNC 5/8"
>13.5 (0.53)
22 (0.87)
30 (1.18)
Øi
Ø
0,15 A
0,2 A
A
(0.008)
(0.006)

15
Installation and Maintenance Manual, Compact CA
3.1.1 Lifting methods
Lifting the torque arm
Figure 3.5
Figure 3.4a
Always make sure where the centre of gravity
is before any lifting.
Installation
Always make sure where
the centre of gravity is
before any lifting. Never
stand below a hanging mo-
tor or torque arm.
1
Fig 3.4d (CA 210) Steel eye
with bolt.
Steel eye bolts.
(3 x M12)
Figure 3.4c
Note: The end cover and screws
must be removed before mounting
the steel eye bolts. After the lift;
refit the end cover and screws with
torque 81 Nm (59 lbf.ft).
Note: Motor lifted without coupling
fitted, danger of slipping off.
1
Max. 10°
Figure 3.4b

16
Installation and Maintenance Manual, Compact CA
Lifting Compact Tandem motor
Always make sure where centre
of gravity is before any lifting.
Never stand below the motor
during lifting.
Lifting method
Figure 3.5b
Data for the Tandem motor
Installation
See 3.1 Mounting instructions.
* See Engineering Manual AC-3.5
Installation
Oiling of splines with hydraulic oil.
Fill up to plug G3/4". 90 Nm / 65 lbf.ft.
Tandem motor
Max. pres-
sure bar
(psi)
Max.
speed
rpm
Total weight
Spline ver-
sion
kg (lb)
Total weight
Shaft ver-
sion
kg (lb)
Max. torque
to driven
shaft*
Nm (lbf·ft)
CA50 XB0NH + TA5 + CA50 SA0N 245 (3552) 280 399 (878) 427 (936)
24500 (18000)CA70 XB0NH + TA5 + CA50 SA0N 205 (2972) 240 429 (944) 456 (1003)
CA70 XB0NH + TA7 + CA70 SA0N 175 (2538) 462 (1016) 489 (1076)
CA100 XB0NH + TA5 + CA50 SA0N 325 (4712)
270
489 (1076) 534 (1175)
49000 (36100)
CA100 XB0NH + TA7 + CA70 SA0N 290 (4205) 522 (1148) 567 (1247)
CA100 XB0NH + TA10 + CA100 SA0N 245 (3552) 638 (1404) 683 (1503)
CA140 XB0NH + TA5 + CA50 SA0N 260 (3770)
220
529 (1164) 571 (1256)
CA140 XB0NH + TA7 + CA70 SA0N 235 (3408) 562 (1236) 604 (1329)
CA140 XB0NH + TA10 + CA100 SA0N 205 (2972) 678 (1492) 720 (1584)
CA140 XB0NH + TA14 + CA140 SA0N 175 (2538) 718 (1578) 760 (1672)
CA210 XB0NH + TA5 + CA50 SA0N 280 (4060)
115
619 (1362) 680 (1496)
73500 (54200)
CA210 XB0NH+ TA7 + CA70 SA0N 260 (3770) 652 (1434) 713 (1569)
CA210 XB0NH + TA10 + CA100 SA0N 235 (3408) 768 (1690) 829 (1824)
CA210 XB0NH + TA14 + CA140 SA0N 210 (3045) 808 (1778) 869 (1912)
CA210 XB0NH + TA21 + CA210 180 SA0N 190 (2755) 898 (1976) 959 (2110)
CA210 XB0NH + TA21 + CA210 SA0N 175 (2538) 898 (1976) 959 (2110)

17
Installation and Maintenance Manual, Compact CA
Table 3.5
Lifting straps must be
chosen with reliable
safety margin over the
total weight of the lifted
object.
Table 3.6a
Figure 3.6
Figure 3.7
When the motor is placed on a flat surface
such as a floor, it must stand either on its outer
diameter or on the suitably protected end face
of the hollow shaft (see figure 3.6 and 3.7).
NOTE:
Standing the motor on a flat surface
Installation
The motor must not be placed on the end face
of the hollow shaft when the coupling is fitted,
since this may cause damage to the coupling.
When in storage, the motor must always be
placed on the end face to the hollow shaft. It
is also advisable to provide supports at the
mounting surface of the motor; see figure 3.7.
Support
Support
Motor
Motor with shaft
coupling
Motor with
splines
kg lb kg lb
CA 50 203 447 175 385
CA 70 232 510 205 451
CA 100 310 682 265 583
CA 140 347 763 305 671
CA 210 456 1003 395 869
Torque arm Weight
kg lb
TCA 5
TCA 7
TCA 10
TCA 14
21
24
75
65
46
53
165
143
Brake Weight
kg lb
MDA 5-10
MDA 14-21
BICA 13
BICA 24
BICA 37
100
230
87
175
210
220
506
191
385
462
Table 3.6b

18
Installation and Maintenance Manual, Compact CA
Instruction to follow when mounting
the COMPACT CA motor on a driven
shaft
Before the motor is mounted there are some
preconditions which must be fulfilled:
- The shaft material for the driven shaft must
be of a quality which meets the minimum re-
quirements specified by Hägglunds. (See our
recommendations, table 3.2.
- The shaft must have the dimensions as
recommended in the section 3.1.
- You should note that the couplings are from
the factory lubricated with MoS2 (Molykote) on
the conical surfaces and the bolts. This lubri-
cants shall remain on those surfaces but:
It is therefore important that you clean your
hands free from Molykote.
If those conditions are fulfilled you may start
the mounting.
- Clean the driven shaft and the out- and inside
of the Compact CA motor hollow shaft. Use
acetone or similar.
- Remove the spacers between the two clamp-
ing rings of the coupling.
- Mount the coupling on the hollow shaft of
the motor. The coupling must be pushed right
up to the stop of the shaft.
- Mount the motor onto the driven shaft by
following the instruction in the section 3.1.4
"Mounting the motor onto the driven shaft".
(With or without using the mounting tool).
3.1.2 Mounting the coupling onto the motor shaft
Molykote must under no
circumstances be trans-
ferred to the surfaces be-
tween the driven shaft and
the motor.
However for the tightening of the coupling
screws the following must be observed:
Keep tension in your lifting wires to avoid a
skew setting of the motor on the shaft dur-
ing the tightening of the screws. Wobbling
caused by a skew setting of the motor gives
extra forces on the main bearings.
In order to avoid the misalignment of the two
clamping rings during the screw tightening, the
gap between the rings must be measured in
several places during the process, see figure
3.14. The difference between the measured
gaps must never vary more than 1 mm (0.04")
during any stage of the tightening process.
Pre-set the coupling screws in opposite pairs
(12-6-3-9 o'clock) until you reach maximum
50% of the torque specified for the screws. It is
very important that when you reach this stage
the misalignment is controlled as described
above.
Mark the screw head (at 12 o'clock) with a
pen or paint so that you can follow the turning
sequence of the screws.
Set the torque wrench for the specified maxi-
mum torque. Tightening torque of the coupling
screws; see the sign on the coupling, or table
3.9.
Now start tightening the screws in sequence
shown in figure 3.14a.
Keep on doing this until you have reached the
stated torque. Several passes are required
before the screws are tightened to specified
torque. Keep checking the alignment of the
coupling. (15-20 passes may be necessary).
When the specified torque is reached it is
important that all screws are tightened with
specified torque and that no further movement
can be observed.
Installation
Never tighten the coupling
screws until the motor has
been mounted onto the
driven shaft.

19
Installation and Maintenance Manual, Compact CA
Coupling ring
Clamping rings
- - - - - = Coated surface
- Absolutely no Molykote on the surfaces
between shaft-motor. Clean the driven shaft
and the inside of the motor hollow shaft.
- Alignment of the motor on the shaft.
(Dimensional check).
- Minimum variation in the gap between the
clamping rings (Dimensional check).
- Right torque on the bolts. (Use torque
wrench).
- Right material and dimension on the driven
shaft.
- The conical surface between the coupling
ring and the clamping rings + the bolts shall be
coated with MoS2 (Molykote), see figure 3.8.
This is done from the factory at delivery. When
a motor has been in for overhaul or service and
shall be reassembled it may be necessary to
lubricate those surfaces with Molykote again
but remember only the specified surfaces!
Remember:
Installation
Before starting the motor, check
that the rotating coupling can not
cause damage.
Figure 3.8
Washer
The following factors are important for successful mounting:
Seal
Cleaned surface

20
Installation and Maintenance Manual, Compact CA
3.1.3a Fitting the torque arm to the motor
Note: Use torque wrench and oiled screws!
Table 3.7a
Do not weld, drill, grind or
carry out any similar work
on the torque arm without
Hägglunds approval.
Figure 3.9 CA 50/70
The torque arm is fitted to the motor before the
motor is mounted on the driven shaft.
- Open the nuts M16 screws for CA 50-70.
- Clean the spigot surface on the torque arm
and motor.
- Oil the screws.
- Make sure that the torque arm will be point-
ing in the right direction when the motor is
mounted in place on the machine. To achieve
the highest possible oil level in the motor
housing, the motor must be turned until the
drain outlets are positioned according to
figure 3.12.
- Line up the torque arm on the motor by
using the screws with washers.
- Mount screws and washers according to fig-
ure 3.9 and screws according to figure 3.9a.
- Tighten the screws to the torque stated in the
table below.
Installation
Figure 3.9a CA 100/140/210
Motor Screw dimension Number of
screws
Tightening torque
Nm lbf·ft
CA 50
CA 70
CA 100
CA 140/210
M16 Strength class 10.9
M16 Strength class 10.9
M20 Strength class 10.9
M20 Strength class 10.9
16
20
17
21
280
280
540
540
205
205
400
400