Danfoss APP series

180R9346 | AQ240486503020en-001702 | 71© Danfoss | 2023.03
Operation guide Installation, Operation and Maintenance APP 53-92 pumps
BoWex-ELASTIC
®
Operating/Assembly instructions
Type HEW, HEW Compact and HEW-ZS
KTR-N
Sheet:
Edition:
40114 EN
11
of 22
7
Please observe protection
note ISO 16016.
Drawn:
2017-04-24 Shg/Hk
Replacing:
KTR-N dated 2013-06-10
Verified:
2017-04-24 Shg
Replaced by:

We recommend to inspect bores, shaft, keyway and feather key for dimensional accuracy
before assembly.
Heating the hubs lightly (approx. 80 °C) allows for an easier mounting on the shaft.
Please pay attention to the ignition risk in potentially explosive atmospheres!
STOP
Touching the heated hubs causes burns.
Please wear safety gloves.
!
With the assembly please make sure that the distance dimension E (see table 1 and 4) is ob-
served to allow for axial clearance of the sleeve while being in operation.
Disregarding this advice may cause damage to the coupling.
!
With the assembly please make sure that the spline of the hub is fully covered by the internal
spline of the elastomer. (Please observe mounting dimensions L, L
HEW1
, L
HEW2
or L
HEW - ZS
.)
Disregarding this advice may cause damage to the coupling.
 Applies with type HEW-ZS only (size 100 to G 125)!
Screw the flange hub (component 4.2) with the additional flange (component 4.1) at the tightening torques T
A
specified in table 9.
Table 9: Cap screws DIN EN ISO 4762
Size
100
125
G 125
Tightening torque T
A
[Nm]
355
355
355
 Mount the hub, flange hub with additional flange or the coupling flange onto the shaft of the driving and driven
side.
 Shift the power packs in axial direction until the mounting dimension L, L
HEW1
, L
HEW2
or. L
HEW-ZS
has been
achieved.
 If the power packs have already been firmly assembled, shifting the hub, flange hub or the coupling flange or
coupling flange axially on the shafts allows for adjusting the mounting dimension.
 Fasten the hub, flange hub or coupling flange by tightening the setscrews DIN EN ISO 4029 with a cup point
(tightening torques see table 7).
 Valid for type HEW-ZS only!
Mount the hub spec. (component 2) in front of the intermediate shaft hub (component 3) and screw the com-
ponents at the tightening torques T
A
specified in table 10.
Table 10: Cap screws DIN EN ISO 4762
Size
48
65
80
G 80
100
125
G 125
Tightening torque
T
A
[Nm]
41 69 120 120 190 295 295
4 Assembly
4.3 Assembly of the coupling