A T T U A T O R I
.
- PNEUMATIC ACTUATORS AND ACCESSORIES -
UsermanING ISSUE .10 March 2004
GT ATTUATORI S.r.l.
REA MI 1558400
FAX (02) 90390368
V.le Europa 17 - 20090 Cusago
Partita IVA e Cod.Fisc.12449540157
TEL (02) 90390322
Milan - ITALY-
E-mail [email protected]
www.gtrevisan.it
PAG. 7 OF 20
INSTALLATION
OPERATION &
MAINTENANCE MANUAL
FIGURE 4
This figure shows the actuator pinion
rotated until pistons disengage from
pinion rack.
FIGURE 5
This figure demonstrates the removal of
pinion through the bottom of the
actuator.
5.0
DISASSEMBLY PROCEDURE
5.1
-
Disconnect all electrical and air supplies from the actuator.
CAUTION:
NEVER DISASSEMBLE AN ACTUATOR THAT
IS UNDER PRESSURE
5.2
-
Remove actuator from mounting bracket and coupling (when present).
Disassemble accessories as: limit switches, microswitches box and positioner (if present), and place
in clean environment.
5.3
-
Remove the eight screws and remove end caps.
5.4
-
Remove O-Rings from end caps.
NOTE: unless actuator has not been in service it will be better to replace the O-Ring set.(See table 2A at
page 8)
5.5
- Rotate pinion in Counter Clockwise direction (NOTE: if unit is a FCCW, assembling C, rotation will be in
opposite direction) until pistons are far enough from cylinder to be removed by hand.
If pistons are too difficult to remove by hand, it is acceptable to use a pair of pliers to assist in removal of
them. (NOTE: be sure not to scar the surface of pistons).
Remove both pistons noting the orientation of them, so during reassembly the pistons will be replaced
in the same orientation.
CAUTION
NEVER USE COMPRESSED AIR TO PULL OUT
THE PISTONS FROM THE ACTUATOR BODY
