b.If the tab has a metal grip ring holding the logo into the cover, grasp the ring with pliers so that squeezing the pliers causes the jaws of the grip ring to open. Pull the grip ring off, and then remove the logo by pulling it from the outside of the case.
c.If the logo has a plastic barb built into it, instead of the grip ring, then it is the newer style. Simply pull the logo from the outside of the cover until it pops out.
d.To install the new logo with a grip ring: flatten the old grip ring with pliers until it has its original shape. Then install the logo from the outside of the cover. Slide the straightened grip ring
down the stem of the replacement logo until it bottoms. Check the grip ring for tightness.
e.To install the new logo with a
5.Using your thumbnail or a slotted screwdriver, gently pry the diaphragm retaining ring 19 out of the case (see Photo #8).
6.Gently remove the diaphragm 18 from the case.
7.Using a size "0" square drive screwdriver or a small Phillips screwdriver, loosen and remove the
screw 2 and washer 3 from the orifice adjusting knob 4 .
8.Remove the adjusting knob from the end of the adjusting orifice.
9.Using a small slotted screwdriver, remove the
10.Holding the base of the orifice housing with a 3/4" wrench, use a 5/8" wrench to remove the retainer nut 6 from the orifice housing 13 .
11. | Remove the swivel fitting 7 from the orifice housing. Inspect the inner sealing surfaces for |
| scratches. |
12.While holding the plastic case 17 in your hand, use a 3/4" wrench to remove the orifice housing from the lever support 26 . The case is reinforced to withstand this operation.
13.Before removing the lever support 26 and assembly from the case, look into the mouthpiece tube from the outside. There are two plastic tabs in the mouthpiece tube against which the fins rest. The fins should rest on the side of the tabs towards the orifice housing (on the right side as you look into the mouthpiece tube from the outside). Remember this placement when you reassemble the regulator!
14.Remove the lever support 26 and assembly from the case with the heat transfer 30 31 still attached. There is no reason to remove these fins from the lever support during a normal service interval. If you do have to remove the fins, use a 5/32" socket wrench to remove and replace the screws 32 .
15.Normally, only the poppet stem seat insert 23 will need to be changed to restore the second stage to
a.Carefully remove the old seat insert from the poppet cavity using a pen knife or similar object.
b.Put the new seat insert on a clean flat surface and lower the poppet cavity over it. Install the black molded seat (p/n
14