October 2015
Service Instructions
127072E Rev. C
11
Section 3: Actuator Reassembly
Actuator Reassembly
Section 3: Actuator Reassembly
3�1
General Reassembly
CAUTION: ONLY USE NEW SEALS
Only new seals, that are still within the seals expectant shelf life, should be installed 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 and piston rod must be free of deep scratches, pitting, corrosion and
blistering or
flaking coating.
CAUTION: REPLACE WORN PARTS
Actuator parts that reflect any of the above-listed characteristics should be replaced with
new parts.
3�1�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 module will be assembled using lubricant
as identified in Section 1 step 1.6.1. The parts and seals used in the actuator cylinder mod
-
ule will be assembled using lubricant as identified in Section 1 step 1.7.1.
3�1�5
For spring module installation refer to Section 5 step 5.4.
3�2
Drive Module Disassembly
NOTE:
Review Section 3.1 General Reassembly before proceeding with drive module reassembly.
Refer to assembly drawing page 2 of 2 Detail "B" for section drawing of guide block.
3�2�1
If guide bar bearings (2-20) is being replaced install new bearings into guide
block (1-30).
