Samson 2357-3, Монтаж и эксплуатация, Страница: 29 / 40

EB 2559 EN 29
Servicing
7.1 Replacing the set point
springs
Î
Refer to Fig. 2
Risk of regulator damage due to excessively
high or low tightening torques.
Observe the specified torques on tightening
regulator components. Excessively tightened
torques lead to parts wearing out quicker.
Parts that are too loose may cause leakage.
Observe the specified tightening torques.
SAMSON's After-sales Service department
can support you concerning lubricant,
tightening torques and tools approved by
SAMSON.
The set point ranges adjusted in the factory
can be changed by changing the set point
spring (8) and operating bellows (3).
Data Sheet
u
T 2570 ∙ Spare parts and ac -
cessories
Î
While working on the regulator, refer to
SAMSON Manual for oxygen
u
H 01.
NOTICE !
Note
Removing the set point spring
1. Put the regulator out of operation (see
section 9.1).
2. Remove the device from the pipeline
3. Undo the lock nut (11).
4. Completely relieve the tension from the
set point spring (8) by turning the set
point adjuster (10) counterclockwise (

).
5. Undo the screws (14).
6. Remove the body cover (9), seal (4.1)
and spring plate (7).
7. Take out the set point spring (8) and op -
erating bellows (3).
Mounting the set point spring
8. Insert new set point spring (8) for the re -
quired set point range together with the
operating bellows (3) into the valve body
(1).
9. Replace the seal (4.1), spring plate (7)
and body cover (9).
10. Fasten the housing cover with the screws
(14). Observe the tightening torques
specified in section 7.2.
11. Turn the set point adjuster (10) clockwise
(

) up to the point where the springs
tension can be slightly felt. If necessary,
pre-adjust the new set point (see Fig. 6).
12. Install the regulator into the pipeline.
13. Put the regulator into operation (see sec
-
tion 6.1).
Change the nameplate and configuration ID
after changing the set point range.
Note