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5.3
Dismantling the Venturi insert
Loosen the cylinder screw on the profile clip (132) and remove it. Separate the induction elbow (133) from the mixer body (130).
Caution
!
Now the Venturi insert with the pin and torpedo unit (126) (Figure 9) can be pulled out of the mixer body.
Fig 9: Unit with venturi insert and pin
The torpedo unit (126) is dismantled after unscrewing the pan head screw (125). The venturi insert (101) and the pin
are adhered to one another and may not be separated from one another. If the parts can be easily separated by hand,
the assembly must be repaired (adhered) or replaced.
5.4
Replacing the guide belts
The next step is the removal of the guide body (102) from the mixer body (130). Remove and dispose of the used guide
belts (129 and 131). Carefully clean the sliding surfaces on the venturi insert (101) and groove for the guide belts with
adjacent surfaces and allow to dry. Fit new guide belts.
Caution
!
5.5
Installing the venturi insert
Move the mixer body (130) up to the vertical position with the connection side facing the induction elbow (133).
Mount the torpedo unit (126) on the venturi insert (101). In the process, the pan head screw must be secured with
low-strength thread locker (e.g. LOCTITE 221). Slide the guide body (102) into the mixer body up to the mechanical stop.
Insert the venturi insert with the small diameter forward into the guide body and check the ease of movement of the
venturi insert.
however, only to the extent that the venturi insert does not fall through under the force of its own weight. Otherwise,
the play between the venturi insert and the guide belts is too great.
5.6
Mounting the induction elbow
After the adjustment of the guide belts (129 and 131), the induction elbow (133) is mounted on the mixer body (130).
The mixer body remains vertically aligned. Prior to mounting the induction elbow, make sure that the O-ring (104) is greased
and does not twist out of the groove. Carefully place the elbow on the mixer body so that the pin (105) goes in through the
hole in the induction elbow provided for this purpose. Place the profile clip (132) on the angles of the two flanges (on the
housing and the induction elbow) and connect the two parts in the correct spatial arrangement by tightening the cylinder
screw. Observe the tightening torques in Table 4 (page 8).
985.29-2 p.10
Carefully separate the parts from one another in order to prevent damage to the
pin (105) by bending, etc.
P
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1 (
0
The guide belts (129 and 131) and sliding surfaces may not be lubricated.
The lubrication of the parts can negatively influence the operating behaviour of the device.
) 5
V
e
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u t
i r
n i
s
e
t r
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) 1
Torpedo (126)
Pan head screw (125)
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