ESS7/EST4/ESL4/ELC4
- 24 -
SECTION 3
17. Install the Adjusting Spring
[22]
, preassembled Adjusting Mechanism and Thrust Washer
[14]
onto the Regulator Body.
Don’t forget the Thrust Washer!
Regulator function will
be impaired without it.
18. Install the Bonnet
[15]
onto the Body. Take care while slipping the Bonnet down over the
internal components – the ribs inside the Bonnet must slide into the scallops of the Guide
Bushing.
19. Install the six Socket Head Cap Screws
[16]
into the Bonnet. Tighten all bolts until snug,
then torque each to 12-15 ft-lbs in the sequence shown in
FIGURE 1
.
FIGURE 1 - Torque Sequence for Bonnet Screws
20. Apply a small amount of CHRISTO-LUBE® #129 to the top surface of the Bonnet (the
surface around the square of the Drive Screw), then slip the Knob
[23]
into position – with
the square hole inside the knob mating to the square shaft of the Drive Screw.
21. Install the #10-32 Screw
[10]
, Lock Washer
[18]
and Washer
[17]
to hold the Knob on.
Torque this Screw a minimum of 30 in-lbs.
22. Apply new Knob or Gas Information decals
[19, 31]
as needed to insure the Regulator
maintains clear visual identification.
23. Remove the Regulator from the Inlet Plug or Bench Vise. It is now ready to test.
RECOMMENDED TOOLS AND SUPPLIES FOR TEST PROCEDURES
•
Test Gun (quick opening on/off valve) with #52 (.0635”) restricting orifice
•
Source of oil-free air or dry nitrogen