Emerson Process Management BETTIS G01 User Manual
Page 10
Bettis P/N 124840E
Revision “B”
Page 6 of 46
2.1.3
The Pneumatic Power Module can be disassembled while still attached to the Drive
Module or the Pneumatic Power Module can be removed from the Drive Module and
disassembled separate to the actuator (refer to Section 5 - Module Removal And
Installation).
2.1.4
To ensure correct re-assembly; that is, with Pneumatic Power Module or Spring Module on
same end of Drive Module as was, mark or tag right (or left) and mark mating surfaces.
2.1.5
For Spring Module removal refer to Section 5 step 5.1.
2.2
PNEUMATIC POWER MODULE DISASSEMBLY
NOTE: 1.
Review Section 2 steps 2.1.1 through 2.1.5 General Disassembly before
proceeding with Pneumatic Power Module Disassembly.
2.
If the actuator model is a GXX2XX Series (two same size power modules with one
module mounted on each side of the drive module) then do the following steps on
both Power Modules simultaneously or complete one power module and then
repeat section 2.2 on the second Power Module
WARNING:
If not already removed disconnect all operating pressure from actuator
power cylinders.
WARNING:
If the actuator is spring return then the spring cartridge must be checked to
verify that the spring(s) are in their extended position before the Pneumatic
Power Module is disassembled from the Drive Module (refer to Section 5.1
through step 5.1.6).
2.2.1
Mark and record location of the ports on outer end cap (3-80) and inner end cap (3-10).
NOTE: If actuator is equipped with a Spring Module complete step 2.2.2. If actuator is a Double
Acting model skip step 2.2.2 and go to step 2.2.3.
2.2.2
Remove breather assembly (12) from outer end cap (3-80).
2.2.3
Refer to assembly drawing page 2 of 2 Detail "E". Remove two socket cap screws (3-130),
with lockwasher (3-140), from outer end cap (3-80).
NOTE: If the Power Module is equipped with an M3 jackscrew remove the M3 jackscrew using
Section 2.6.5 for G01 models and Section 2.6.6 for G2 and G3 models.
2.2.4
Outer end cap (3-80) removal as follows:
2.2.4.1 G01 through G13 standard end cap (3-80) removal. Continue at step 2.2.5.
2.2.4.2 G01-M3 JACKSCREW DISASEMBLY FROM OUTER END CAP (3-80)
2.2.4.2.1
Remove M3 handwheel or M3 hex drive hub from M3 (3-290) per
Section 2.5.