Bettis P/N 137462E
Revision
"A”
Page 8 of 18
SECTION 3 - ACTUATOR REASSEMBLY
3.1 GENERAL
REASSEMBLY
CAUTION:
Only new seals that are still within the seal’s expectant shelf life should be
install into actuator being refurbished.
3.1.1
Remove and discard all old seals and gaskets.
3.1.2
All parts should be cleaned to remove all dirt and other foreign material prior to
inspection.
3.1.3
All parts should be thoroughly inspected for excessive wear, stress cracking, galling and
pitting. Attention should be directed to threads, sealing surfaces and areas that will be
subjected to sliding or rotating motion. Sealing surfaces of the cylinder, torque shaft and
center bar must be free of deep scratches, pitting, corrosion and blistering or flaking
coating.
CAUTION:
Actuator parts that reflect any of the above listed characteristics should
be evaluated and replaced with new parts when required.
3.1.4 INSTALLATION
LUBRICATION
INSTRUCTIONS: Use the correct lubrication as defined
in Section 1 step 1.6.
3.1.4.1 Before installation coat all moving parts with lubricant.
3.1.4.2 Coat all seals with lubricant, before installing into seal grooves.
3.1.5
Torque shaft upper bearing and the lower bearing are not recommended as parts that
require field replacement. Consult Waller Texas Bettis Service Coordinator for “torque
shaft upper or lower bearing” replacement information.
3.1.6
CBAX30 double acting actuator construction as follows:
3.1.6.1 STANDARD CONSTRUCTION - Cylinder (4-10) or cylinder adapter (4-15) and
cylinder (4-10) mounted on the left side of housing (1-10) and housing adapter
(6-10) mounted on the right side of housing (1-10).
3.1.6.2 -S INVERSE CONSTRUCTION - Cylinder (4-10) or cylinder adapter (4-15) and
cylinder (4-10) mounted on the right side of housing (1-10) and the housing
adapter (6-10) mounted on the left side of housing (1-10).
3.2 HOUSING
REASSEMBLY
NOTE: Review Section 3 steps 3.1.1 through 3.1.6 before proceeding with housing reassembly.
NOTE: In section 3.2 where the step indicates to "lubricate, coat or apply lubricant",
use
lubricant as identified in Section 1 step 1.6 for lubricating the part being installed.