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4.
Specific maintenance instructions
Danger
!
4.1
Intervals for maintenance purposes
The intervals between maintenance tasks depend largely on the operating conditions of the device. For this purpose,
please observe chapter 1.1. General Information.
If operational irregularities are discovered during the operation or during functional tests, unplanned
Note
maintenance work on the mixer is required. This must be performed immediately after the discovery
of the deviation in operating behaviour.
4.2
Tightening torques
Screws and nuts without a specification of the tightening torques are tightened according to the commonly available
tables for screw dimensions and qualities using an appropriate tool. Parts with an explicitly specified tightening torque
(see spare parts drawing) are to be tightened to the specified value with a torque wrench (see Table 4).
Table 4: Tightening torques M
P
o
. s
n
. o
Tightening torque in Nm
4.3. Lubricants
All O-rings which are replaced (see 1.1 General information) must be lubricated with silicone grease before installation
after the device maintenance.
Caution
!
Table 5: Lubricants
C
o
m
p
o
n
e
n
s t
l l A
O
-
n i r
s g
A
f l l
s a
e t
n
n i
g
c s
e r
Transmission thread and conical washer
on the threaded rod
4.4
Adhesives
The parts to be glued must be completely clean, dry and free of grease. Specifications for adhesive connections
can be found in the spare parts drawing and the following maintenance instructions.
Table 6: Adhesives
A
d
h
e
s
v i
e
c
o
n
n
e
t c
R
o
d
R
o
d
t
r h
a e
d
985.29-2 p.08
Do not carry out maintenance unless the system is safely de-energised and depressurised.
M
A
A
1
1
2
8
Observe the notes regarding lubricants in chapter 1.1 General information.
w
s
o i
n
s
1
2
0
1
2
3
2.8
12
L
u
r b
c i
a
n
s t
i S
c i l
o
n
e
r g
a e
e s
A
s
e s
m
b
y l
p
s a
e t
Slip agent
A
d
h
e
s
v i
e
A
n
e a
o r
b
c i
a
d
h
e
i s
e v
A
n
e a
o r
b
c i
a
d
h
e
i s
e v
1
3
2
212
HON
p
a
t r
n
. o
27081
27091
27704
HON
p
a
t r
n
. o
2
6
6
9
0
2
6
6
9
0
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