Trebor SS40LX-A Series Surge Suppressor - Manual (Page 7)

SS40 SURGE OPERATION / MAINTENANCE MANUAL PAGE 7
Insert small flat blade screwdriver in center hole of push plate to prevent
shaft from turning. Remove push plate by rotating it CCW.
Remove pilot valve boss using 3/4” pin tool to rotate boss CCW.
Disassemble pilot boss assembly and replace pilot assembly or other worn
parts.
Check .020 diameter air bleed port in back wall of suppressor for possible
blockage.
NOTE: All polypropylene and PTFE parts, when disassembled, should be
thoroughly washed and free from acid residue for handling purposes.
2.7 ASSEMBLY
Check that all parts are clean and dry.
Use a new pair of protective gloves to prevent carry over contamination.
Reverse disassembly procedure starting with reassembling pilot boss
assembly.
Before reinstalling diaphragms, check diaphragms for white colored creases
or other signs of wear or damage. Replace if necessary.
Complete reassembly by re- clocking 1/16” diameter mark in head to the
original position. (Failure to do so will result in air fitting misalignment after
mounting suppressor.)
Retorque union nut using strap wrench and torque wrench to 65 ft-lbs.
Reinstall suppressor on pump to hand tight plus 1/4 turn. If connection
leaks, increase an additional 1/8 turn only. If leaking cannot be stopped,
remove suppressor, replace disk seal and check mating surfaces for
scratches or depressions.