Aqua Lung MRS III, Эксплуатация и обслуживание

Страница: 24 / 45

figure 43
16.1.1. Place the unit face down on a clean work surface that has been covered with a pad or
towel (to protect the unit from scratches on the face). Note the position of the regulator
and plumbing.
16.1.2. Disconnect the two compression
connections (PRS8 and MRS2) from
the regulator’s inlet and outlet fittings
(figure 43). Use a 7/16” size wrench.
16.1.3. Turn the unit face up on the work
surface.
16.1.4. Remove the acorn nut (MRS13)
on the adjusting screw with a 9/16”
wrench. Using a 3/16” Allen wrench
rotate the adjusting screw
counterclockwise until all spring
pressure is released from it
(figure 44). It is possible and
acceptable to completely remove this
screw from the regulator.
16.1.5. Using a large adjustable wrench remove the mounting nut (NUT1) by turning counter-
clockwise.
16.1.6. Lower the regulator out of the hole in the control
panel. Use caution on tubing below.
16.2 Once the regulator has been removed, place the system
aside and proceed with the
regulator rebuild.
16.2.1. NOTE-THE REGULATOR (1120) MUST
BE KEPT VERY CLEAN INSIDE. IT IS IMPORTANT TO
WORK ONLY IN A CLEAN ENVIRONMENT.
16.3. The regulator can be disassembled using either two
wrenches, or one wrench and a vise. Hold the spring cap
of the regulator (1120-1). Turn the smaller hex (1120-2)
— the piece with the smaller of the two male threads visible
— counterclockwise until it is separated.
16.4. Take the main body and turn it so that the end you just
opened is down. Tap it gently on your hand or the padded
bench to get the piston (1120KIT-1) to drop out. Set both
aside.
16.5. Take the body (1120KIT2) that you screwed out of
page 18
figure 44