Hägglunds Compact CA, Installation And Maintenance Manual

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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.