Issue:
Piston Seal Replacement
Resolution:
RTHA and RTHB pistons can be rebuilt in the field. It is recommended that RTHA-SB-12 and RTHA-SB-15 be used to determine whether there is a need to open the compressor. The bulletins can be found at:
If it is necessary to replace the seals, there is one piece of information that is missing from the literature -- WITH RESPECT TO THE PISTON NUT, PUT ONE DROP OF LOCTITE 271 ON THE NUT AND TORQUE TO 100 FT-LB.
The part numbers for the piston kits (which will provide all necessary O rings) are as follows:
130 and 150 ton KIT06587
180 and 215 ton KIT06592
255 and 300 ton KIT06598
380 and 450 ton KIT06604
Notes:
Changes:
Other Question/Problem/Cause Statements:
- Piston Seal Replacement
Facts:
- RTHA, RTHB
Document Identifier: DOC-75417