3M V-100 User manual

V-Series Air Control Valves - Maintenance
© 3M June 2006. All rights reserved.
3M™ V-Series Air Control Valves
Maintenance
Next, let’s look at the replacement parts for the continuous flow supplied air
respirator system. A complete assembly consists of the following components:
- An L-Series Headgear
- An L-122 Breathing Tube
- A high pressure air regulating valve or low pressure connector
with belt.
- A high pressure or low pressure supplied air hose with fittings.
The L-122 is the Breathing Tube. The entire breathing tube should be replaced
if it develops a leak, tear or becomes damaged.
The W-2963 is the Waist Belt. The entire belt should be replaced when it
becomes damaged.
There are 4 different air control valves approved for use with the L-Series
Headgear:
- 3M™ Vortex Cooling Assembly V-100
- 3M™ Vortemp™ Heating Assembly V-200
- 3M™ Air Regulating Valve Assembly V-300
Intended for high pressure applications, ranging from 25 to 90 psi.
- 3M™ Low Pressure Connector Assembly V-400
Intended for low pressure applications, ranging from 6 to 15 psi.
These air regulating valves have no moving parts except the control valve, so
there is little to wear out or maintain. If proper filtration of compressed air is
maintained, the muffler will stay clean and maintain its acoustic efficiency. The
following spare parts kits are available to overhaul and maintain the air regulating
valves.

V-Series Air Control Valves - Maintenance
© 3M June 2006. All rights reserved.
3M™ Vortex Cooling Assembly V-100
1) The V-115 is the Spare Parts kit for the 3M™ Vortex Cooling
Assembly V-100. It can be used to replace the vortex generator and o-
ring or to replace the foam pad and fastener. To replace the generator and
o-ring:
a. Mount the vortex assembly in a vise with pressure on the flat sides
near the valve stem.
b. Carefully remove the retainer with a small pliers.
c. Lift off the V-111 Muffler Tube Assembly.
d. Unscrew the turbine cap using a 3/8 inch Allen wrench.
e. Remove the vortex assembly from the vise and invert the assembly
to remove the special washer and generator.
f. Remove the o-ring from the turbine cap using a small pliers.
g. Install the new o-ring on to the turbine cap so that it rests above the
threaded portion of the turbine cap.
h. Re-mount the vortex assembly in the vise.
i. Install the new generator with the angled groove side up.
j. Install the new special washer, laying it over the generator.
k. Thread the turbine cap clockwise onto the body assembly and
tighten with a 3/8 inch Allen wrench until tight or approximately 30
pounds if using a torque wrench. Overtightening can cause the
generator slots to restrict, thereby reducing airflow.
l. Replace the V-111 Muffler Tube Assembly onto the turbine cap.
m. Re-insert the retainer.
2) To replace the foam pad and fastener:
a. Use a Phillips screwdriver, remove the machine screw from the
body assembly.
b. Slide the body tube off of the vortex.

V-Series Air Control Valves - Maintenance
© 3M June 2006. All rights reserved.
c. Remove the foam pad and 3M™ Scotchmate™ Fastener from the
cooling tube.
d. Adhere the new 3M™ Scotchmate™ Fastener on to the cooling
tube.
e. Position one end of new acoustic foam pad halfway between the
exhaust holes and wrap it around the 3M™ Scotchmate™ Strips.
Make sure that the ends of the acoustic foam pad do not overlap,
but rather form a snug butt fit.
f. Holding the acoustic foam pad in place with two fingers of one
hand, using the other hand, carefully slide the body tube over
acoustic foam and the tube assembly with a slight twisting motion.
g. Re-secure the body assembly with the machine screw.
3M™ Vortemp™ Heating Assembly V-200
1) The V-215 is the Spare Parts kit for the 3M™ Vortemp™ Heating
Assembly V-200. It can be used to replace the cold muffler and the 3M™
Vortemp™ generator or to replace the o-ring in the upper tube assembly.
To replace the cold muffler and generator:
a. Mount the 3M™ Vortemp™ Assembly in a vise with pressure on
the flat sides near the valve stem.
b. Remove the cold muffler by turning the muffler counter clockwise
by hand.
c. Remove the valve ball and turbine cap by turning counterclockwise
with a wrench.
d. Remove the o-ring from the turbine cap with a small pliers.
e. Remove the 3M™ Vortemp™ Assembly from the vise and invert
the assembly to remove the special washer and generator.
f. Install the new o-ring on to the turbine cap so that it rests above the
threaded portion of the turbine cap.
g. Re-mount the 3M™ Vortemp™ Assembly in the vise.
h. Install the new generator with the angled groove side up.

V-Series Air Control Valves - Maintenance
© 3M June 2006. All rights reserved.
i. Install the new special washer, laying it over the generator.
j. Thread the turbine cap clockwise onto the body assembly and
tighten with a wrench.
k. Install the new cold muffler onto the valve ball and hand tighten by
turning clockwise.
2) To replace the o-ring in the upper tube assembly:
a. Use a Phillips head screwdriver, remove the machine screw from
the body assembly.
b. Slide the body tube off of the 3M™ Vortemp™ Assembly.
c. Remove the o-ring with a small pliers.
d. Install the new o-ring using a small pliers if needed.
e. Slide the body tube back on to the heating tube.
f. Re-insert the machine screw into the body assembly.
3M™ Air Regulating Valve Assembly V-300
1. The W-3036 is the Spare Parts Kit for the 3M™ Air Regulating Valve
Assembly V-300. It can be used to replace the disc-muffler and screen
and to replace the o-rings on the control knob. To replace the disc-muffler
and screen:
a. Carefully remove the retainer with a small pliers.
b. Lift the muffler tube assembly away from the valve assembly.
c. Remove the retaining ring with a lock ring removal tool.
d. Turn the valve assembly over to remove the metal screen and foam
disks.
e. Insert the two new foam disks into the valve assembly.
f. Place the new metal screen on top of the foam disks.

V-Series Air Control Valves - Maintenance
© 3M June 2006. All rights reserved.
g. Install the retaining ring with the lock ring removal tool.
h. Place the muffler tube assembly onto the valve assembly and re-
insert the retainer.
2. To replace the o-rings on the control knob:
a. Mount the air regulating valve in a vise, gently gripping the
adjustment knob.
b. Remove the nut on the valve body with a wrench.
c. Lift the valve body off of the adjustment knob stem.
d. Remove the o-rings from the knob stem with a small pliers.
e. Place the new o-rings onto the knob stem with a small pliers.
f. Lower the valve body down over the adjustment knob stem.
g. Re-install the nut with a wrench.
3M™ Low Pressure Connector Assembly V-400
1. The W-3036 is also the spare parts kit for the 3M™ Low Pressure
Connector Assembly V-400. It can be used to replace the disc muffler and
screen. To replace the disc muffler and screen:
a. Remove the retainer with a small pliers.
b. Lift the muffler tube assembly away from the valve assembly.
c. Using a lock ring removal tool remove the retaining ring.
d. Turn the valve assembly over to remove the metal screen and foam
discs.
e. Insert two new foam discs into the valve assembly.
f. Place the new metal screen on top of the foam discs.
g. Install the retaining ring with the lock ring removal tool.
h. Place the muffler tube assembly onto the valve assembly and re-
insert the retainer.