4.4.19 Install the Filter (15) into the tank thread end of the body with the narrow end first. Install the Dip Tube
Assembly (16) over the Filter. Tighten the Dip Tube with 2-3 ft/lb (3-4 Nm) of torque.
4.4.20 Install the O-ring (17) onto the thread end of the body.
4.4.21 Use the fingertip to spread a film of grease on the inside of the Cap (2) where the large O-ring (3)
slides.
12
Photo 5
Installing the Seat (6) into the Piston (4)
4.4.22 Place the piston Seat (6) on a clean flat surface and press the Piston (4) stem straight over the seat
until the new seat is installed into the end of the Piston. See Photo 5.
4.4.23 Install the pre-lubricated (see 4.4.1) O-rings (3, 5) onto the piston. Carefully guide the large end of the
Piston into the Cap until it bottoms. Use a gentle rocking motion of necessary to move the Piston into the
Cap, but do not cock it at too severe an angle since this may cause the Piston to gouge the sealing surface
of the Cap.
4.4.24 Support the Body (14) so that the Cap threaded end is facing up. Use the same number of Shims (8)
that were installed in the Spring Cavity when you took the RaZor apart. If there was one Shim, it goes on
the Body side of the Spring (7). If there were two Shims, install one at each end of the Spring.
4.4.25 Install the Spring (7) on top of the Shim.
4.4.26 Lubricate the threads on the Cap (2) with grease. Bring the Cap with its Piston (4) installed, over the
Spring and Shim sitting in the cavity of the body and screw them together as far as you can by hand.
4.4.27 Install the new O-ring (35) from the Service Kit into the face of the Filling Adapter (35).
4.4.28 Wipe a dab of grease on the first (outward) three male threads on the Regulator. Install the Regulator
into its Cylinder hand tight. Mount the cylinder in a secure plastic band tool or tank vise that will not mar the
finish on the cylinder. Use a wrench on two wrench flats on the regulator (that do not have Port Plugs or
Hoses in them yet) to tighten the regulator into the cylinder with 20-30 ft/lbs (27-41 Nm) of torque.
4.4.29 Use a wrench to snug the Cap (2) onto the body with 1-5 ft/lbs (1.4- 7 Nm) of torque.
