Samson EB 8075 EN, Mounting And Operating Instructions

Page: 38 / 80

5-4 EB 8075 EN
Installation
5.3 Mounting the device
The activities listed below are necessary to
install the valve and before it can be started
up.
Risk of valve damage due to excessively
high or low tightening torques.
Observe the specified torques when tighten-
ing control valve components. Excessive
tightening torques lead to parts wearing out
more quickly. Parts that are too loose may
cause leakage.
Î
Observe the specified tightening torques.
Risk of valve damage due to the use of
unsuitable tools.
Î
Only use tools approved by SAMSON.
5.3.1 Mounting the external
anti-rotation fixture
Before mounting the actuator, the external
anti-rotation fixture must be mounted onto
the piston stem in some cases. The valve
must be closed beforehand.
For SAMSON Type 3271 Actuators with
Type 3273 Hand-operated Actuator, observe
the mounting and operating instructions of
the hand-operated actuator (handwheel) to
mount the anti-rotation fixture
u
EB 8312-X.
a) Versions up to NPS 16
(Class 150)
See Fig. 5-2 and Fig. 5-3
1. Insert ball bearings (310) into the recess-
es in the bonnet.
2. Place the yoke (3) on the bonnet in such
a way that the ball bearings fit into the
recesses of the yoke.
3. Fasten the yoke (3) using the castellated
nut (92).
4. Fasten the hanger (83) and warning la-
bel (255), if applicable, to the yoke us-
ing the screws (82).
5. Position the travel indicator scale (84) on
the hanger (83) with the screws (85) ac-
cording to Table 5-3.
6. Use a soft-faced hammer or lever press
to press the sliding washers (309) with
their beveled part first (without using any
lubricant) into the recesses of the clamps
(301) as far as they will go. Remove any
excess material.
7. Apply a thin film of lubricant (114) to the
threads of the stem (9) and screws (303).
Impaired functioning due to incorrectly ap-
plied lubricant.
Î
Do not apply any lubricant to the threads
of the clamps (301) or the plug stem.
NOTICE
!
NOTICE
!
NOTICE !