2-12. VAPOR BLEED VALVE - lNSPECT/REPLACE (Cont)
Lubricate stem of umbrella check valve (3) with
petrolatum (Item 6, Appendix C).
Gently pull umbrella stem and bulb through cen-
ter hole of adapter plug (1). Be careful not to
break stem from umbrella. Check that umbrella
lies flat against bleed holes in adapter plug.
Place housing support block close to valve
bore when pressing adapter plug (l).
Failure to place support blocks correctly
may lead to warping of housing mounting
Place pump housing (2) on hand operated arbor
press. Use parallel blocks under the pump mount-
ing flange to support housing.
Apply locking compound (Item 5, Appendix C) to
adapter plug (1). Place one drop on beveled edge
of insert sleeve.
Adapter plug must be pressed straight
into plug seat. If adapter plug is allowed
to tilt, damage may result to both the
adapter plug and valve bore.
Position adapter plug (1) over seat in pump hous-
ing (2). Bring arbor down to meet adapter plug,
Square top edge of adapter plug with arbor face.
Gently press adapter plug into bore until fully
FOLLOW-ON MAINTENANCE: Install canister on pump housing
END OF TASK