R-100
BALANCED PISTON FIRST STAGE REGULATOR
DISASSEMBLY
/ ASSEMBLY
4.
Apply a light film of lubricant to both
ends of the HP spring (18) and place
into the spring cavity of the main
body (13) and against the second
spring isolator. Refer to
Figure 5-p
5.
Then place a genuine TUSA R100
piston bullet through the piston, from
the orifice end. The bullet should be
exposed out the end of the piston.
WARNING
Failure to recognize or replace a faulty HP spring may lead to failure of the
regulator to supply air. Use prudence and replace the spring regularly to maintain
top performance in the regulator function.
6.
Before lowering the HP piston (bullet
first) into the main body (13) lubricate
the stem 2mm below the knife edge,
this will lubricate the stem o-ring.
Then insert until the bullet and stem
have passed through the piston stem
o-ring (12). Refer to
Figure 5-q
CAUTION
Failure to use this bullet may result in cutting the piston stem o-ring (12) or damaging the
sealing (knife) edge of the piston stem while performing the following step.
7.
Grasp the piston and body together,
preventing the piston from sliding
back out, and turn over to press out
the installation bullet with your
thumb. See
Figure 5-r
8.
Lubricate and install the main body o-
ring (16) on to the body (13).
9.
Place the end cap ring (21) onto the
end cap (22).
Revised v1.0-2000
21
FIG. 5-p
FIG. 5-q
FIG. 5-r
