cashco 1000HP Посібник з монтажу, експлуатації та технічного обслуговування - Сторінка 4
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Також для cashco 1000HP: Інструкція з монтажу, експлуатації та технічного обслуговування (14 сторінок)
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VI. MAINTENANCE
SYSTEM UNDER PRESSURE. Prior to per form ing
any maintenance, isolate the regulator from the
system and relieve all pressure. Failure to do so
could result in personal injury.
A. General:
1. Maintenance procedures hereinafter are based
upon removal of the unit from the pipeline
where installed.
2. Owner should refer to owner's procedures for
re mov al, handling and cleaning of reusable
parts, and dis pos al of non-reusable parts, i.e.
gaskets.
3. If desired, the gaskets may be lubricated with
a light oil provided it is com pat i ble with the
fluid.
B. Diaphragm Replacement:
1. Securely install the body (1) in a vice with the
spring chamber (2) directed upwards.
SPRING UNDER COMPRESSION. Prior to
re mov ing flange bolts, relieve spring compression
by back ing out the adjusting screw. Failure to
do so may result in flying parts that could cause
personal injury.
2. Remove closing cap (31). Relax range spring
(27) by turning adjusting screw (6) CCW until
re moved from spring chamber (2).
3. Paint or embed a match mark between body
casting (1), spring chamber casting (2), and
body spacer (42) along flanged area.
4. Remove all diaphragm flange nuts (9) and
bolts (8). Remove nameplate (28).
5. Remove spring chamber (2), spring button (4)
and range spring (27).
6. Pry up the diaphragm(s) (20) and diaphragm
gasket (19) around the perimeter of the spring
chamber (2) flange to ensure the diaphragm(s)
(20) are not "sticking". (Di a phragm gasket
4
WARNING
WARNING
SECTION VI
(19) is not used with a composition (soft)
diaphragm.)
NOTE: The text hereafter will refer to:
7. Pry up the diaphragm(s) (20) and diaphragm
gas ket (19) around the perimeter of the body (1)
di a phragm flange to ensure the diaphragm(s)
(20) are not "stick ing". (Di a phragm gasket
(19) is not used with a com po si tion (soft)
diaphragm.)
8. Remove diaphragm subassembly by sliding
the push er plate and stud (13), body spacer
(42) and nut (11) in the direction of the reg u la tor
inlet, approximately 1/2"–3/4" (15-20 mm)
The pusher plate and stud (13), stud nut
(10), and stud collar (16) should dis en gage
with the rocker arm (14) slot. Lift ver ti cal ly for
di a phragm subassembly re mov al, carefully
hold ing the assembly at its outer edge to
prevent the body spacer (42) from falling from
be tween the diaphragm(s) (20).
a. The -1+8 double di a phragm op tion al
con struc tion (-1+6 single di a phragm
con struc tion is sim i lar. Text regarding
com po si tion diaphragm(s) (20)
applies only to -1+6 op tion). Text
portions deal ing with body spacer (42),
diaphragm spacer (41) and sep a ra tion
of total di a phragm (20) quantity into two
"stacks" applies only to -1+8 option.
b. The "pusher plate and stud" (13) as a
single part for 1/2" – 1-1/4" sizes and
as two separate parts, a "pusher plate"
(5) and a "pusher stud" (13) , for 1-1/2"
and 2" sizes.
IOM-1000HP-Dif fer en tial