ARCA Regler GmbH
11 Disassembly / assembly of the actuator
Series 812-DWK
27 / 32
03.2020 / 1.0
11
Disassembly / assembly of the actuator
WARNING
Disregarding the safety instructions
Risk of injury!
► Observe the notes in the chapter entitled
11.1
Procedure
▪ Disassembly in the given order.
– Dismounted parts are to be secured carefully against falling down
(risk of injury or damage).
▪ Clean all components.
▪ Before assembly, all components must be inspected for damage or
wear and replaced where necessary.
▪ Assembly in the reverse order using the new components.
– Seals must generally be replaced.
– Insert O-rings and shaped rings with a suitable lubricant.
– Refer to the chapter entitled
for the tightening
torques of bolted connections.
Recommended lubricants
O-rings, shaped
rings, guide bands
Bolted connections
Roller bearing
Molykote 55
Metaflux lubricating
metal paste 70-85
Shell Retinax Grease
EP2
11.2
Guide and sealing element
▪ Remove the stroke indicator
▪ Remove any positioner if fitted
▪ Unscrew the pins (2)
▪ Unscrew and remove the complete bushing (4)
▪ Observe the following during the assembly:
– Observe the notes in the chapter
11.3
Piston
DANGER
Danger of death and serious injuries as well as damage to property
due to high spring preload!
If the following instructions are disregarded, serious injuries resulting in
death as well as severe damage to property cannot be ruled out.
► It is imperative to follow the instructions and the given order below
► Observe warning notices
"DWK" function
▪ Remove any positioner if fitted
