Service Instructions
074985 Rev. B
October 2014
99
Section 8: General Reassembly
General Reassembly
Section 8: General Reassembly
CAUTION: INSTALL ONLY NEW SEALS INTO ACTUATOR
Only new seals, that are still within the seals expectant shelf life, should be install back
into actuator being refurbished.
1.
Remove and discard all seals and gaskets.
2.
All parts should be cleaned to remove all dirt and other foreign material prior
to inspection.
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 and piston rod must be free of deep scratches, pitting, corrosion
and blistering or flaking coating.
CAUTION: REPLACE NEW PARTS ACCORDINGLY
Actuator parts that reflect any of the above listed characteristics must be replaced
with new parts.
4.
Before installation, coat all moving parts with a complete film of lubricant.
Coat all seals with a complete film of lubricant, before installing into seal
grooves.
NOTE:
The parts and seals used in the actuator housing assembly will be assembled using
lubricant as identified in Section 4, Step 9. The parts and seals used in cylinder (3) or
cylinder assembly M3 (3-10) will be assembled using the hydraulic fluid identified in
Section 4, Step 10.
5.
Low Temperature or trim 11 T-Seal Set installation - The T-Seal is composed of
one rubber seal and two split skive cut back up rings.
a.
Install the T-Seal into the seal groove.
b.
Install a backup ring on each side of the T-Seal.
c.
When installing the backup rings, do not align the skive cuts.
d.
If the backup rings are too long and the rings overlap beyond the skive
cuts, then the rings must be trimmed with a razor sharp instrument.