Servicing - Samson 2479 Mounting And Operating Instructions

9 Servicing

The regulator does not require any mainte-
nance. Nevertheless, it is subject to natural
wear, particularly at the seat, plug, operat-
ing diaphragm and control thermostat. De-
pending on the operating conditions, check
the regulator at regular intervals to avoid
possible malfunctions. Plant operators are
responsible for drawing up an inspection
and test plan. Details on faults and how to
remedy them can be found in the 'Malfunc-
tions' section.
The work described in this section is only to
be performed by personnel appropriately
qualified to carry out such tasks.
We recommend removing the regulator from
the pipeline before performing any mainte-
nance or service work.
WARNING
!
Risk of burn injuries due to hot or cold com-
ponents and pipeline.
Regulator components and the pipeline may
become very hot or cold. Risk of burn inju-
ries.
Î Allow components and pipelines to cool
down or warm up to the ambient tem-
perature.
Î Wear protective clothing and safety
gloves.
EB 3132-3 EN
WARNING WARNING
! !
Risk of personal injury due to residual pro-
cess medium in the regulator.
While working on the regulator, residual
process medium can escape and, depending
on its properties, may lead to personal in-
jury, e.g. (chemical) burns.
Î Wear protective clothing, safety gloves
and eye protection.
NOTICE
!
Risk of regulator damage due to exces-
sively high or low tightening torques.
Observe the specified torques when tighten-
ing regulator components. Excessive tighten-
ing torques lead to parts wearing out more
quickly. Parts that are too loose may cause
leakage.
Î Observe the specified tightening torques
(see 'Tightening torques' in Annex).
NOTICE
!
Risk of regulator damage due to the use of
unsuitable tools.
Î Only use tools approved by SAMSON
(see 'Tools' in Annex).
NOTICE
!
Risk of regulator damage due to the use of
unsuitable lubricants.
Î Only use lubricants approved by
SAMSON (see 'Lubricants' in Annex).
Servicing
9-1