Samson 43-8, Монтаж и эксплуатация

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EB 2178 EN 23
Servicing
7 Servicing
The Type 43-8 and Type 43-8 N Tempera -
ture Regulators do not require much mainte-
nance. Nevertheless, they are subject to nat-
ural wear, particularly at the soldered joints
and seals.
The device was checked by SAMSON before
it left the factory.
− The product warranty becomes void if
service or repair work not described in
these instructions is performed without
prior agreement by SAMSON's After-sales
Service.
− Only use original spare parts by
SAMSON, which comply with the original
specifications.
7.1 Tightening torques and
lubricant
Î
See Fig. 2 and Fig. 4
Component
Tightening
torque in Nm
Screw fitting (15) 20
Fastening screws (16) 2
Connection nut on the weld -
ing end (A)
80
Double nut (D) 20
Connection nut for the sensor
pocket (F)
20
Grub screw on the sensor (M) 1
Connection nut on the corru -
gated pipe (W)
70
Note
7.2 Preparation for return ship-
ment
Defective devices can be returned to SAM-
SON for repair. Proceed as follows to return
devices to SAMSON:
1. Put the device out of operation. See sec-
tion 9.1.
2. Remove any residual process medium.
3.
Send the device together with the filled-in
form to your nearest SAMSON subsidi-
ary. SAMSON subsidiaries are listed on
our website at
u
www.samsongroup.com
> Contact.
4. Continue as described on our website at
u
www.samsongroup.com > Service &
Support > After-sales Service > Returning
goods.
8 Malfunctions
The malfunctions listed in Table 6 are caused
by mechanical faults and incorrect regulator
sizing. In the simplest case, the functioning
can be restored following the recommended
action. Special tools may be required for re-
pair work.
Depending on the operating conditions,
check the temperature regulator at certain in-
tervals to prevent possible failure before it
can occur. Plant operators are responsible
for drawing up an inspection and test plan.