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6 N1 70 en
4.4
Actuator Disassembly
4.4.1
General Disassembly
Actuator disassembly is written to either completely disas-
semble the entire actuator or can be used to disassemble
individual Units as needed (pneumatic cylinder or spring
cartridge).
When the spring cartridge unit is to be removed it should
be removed from the central block unit prior to the Pneu-
matic cylinder unit removal or disassembly. Then rotate
actuator by 45 degree for Pneumatic cylinder assembly
removal or disassembly.
To ensure correct reassembly, mark or tag mating surfaces.
Actuator central block base should be rigidly mounted
before disassembly of any component.
4.4.2
Pneumatic cylinder module
disassembly
Step 1.
Unscrew and remove hex. Soc. Head cap screw (45)
from top cover (12) of central block module.
Step 2.
Fitment between top cover (12) and central block
(11) is tight, use screw driver as crowbar and put it in slot
provided on central block cover to lift the cover.
Step 3.
Apply pneumatic pressure to front cover (3) to
rotate actuator by 45 degree.
Step 4.
Unscrew connecting nut (44) to dismantle piston
rod (9) from carrier (15).
Step 5.
Remove two tie rod (8) hex nut (40) with spring
washer (39) from outboard side of rear cover (10).
WARNING:
It is possible, that the actuator may contain a
dangerous gas and/or liquids. Ensure that all
proper measures have been taken to prevent
exposure or release of these types of contaminants
before commencing any work.
NOTE:
Review section 4.4.1 General Disassembly before proceed-
ing with pneumatic cylinder module disassembly
If the actuator model is a N1_S2_D00D_ (two same size
pneumatic cylinder units with one unit mounted on each
side of the central block unit) then do the following steps
on both pneumatic cylinder Units simultaneously or com-
plete one pneumatic cylinder unit and then repeat section
4.3.2 on the second pneumatic cylinder unit.
WARNING:
If not already removed disconnect all operating
pressure from actuator pneumatic cylinder.
CAUTION:
Do not damage O-ring or O-ring grove while removing
top cover (12).
CAUTION:
Spring module should be removed before starting pneu-
matic cylinder module removal procedure.
CAUTION:
Maximum pressure to be applied in the above step is 1
barg (1 kg/cm
2
).
Содержание Neles N1 Series
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