A2 Cutting Head; Installing The A2 Cutting Head - AccuStream AccuValve On/Off Valve Manual

AccuStream Cutting Systems
Replacing the Mixing Chamber
The Mixing Chamber may require replacement after extended use. When the hole through the mixing
chamber exceeds .090 it should be replaced.
Removing the worn mixing chamber.
1. Remove the DiaLine Head from the Adapter.
2. Remove the orifice retainer, inlet connector, nozzle nut, and collet from the body. Unthread the
setscrew by a few turns that holds the mixing chamber.
3. Push the mixing chamber up and out the top of the body with a .250 dia. pin.
Installing the new mixing chamber.
1. The mixing chamber must be installed with the top of the chamber flush to the top of the bore.
2. Place the orifice retainer in the bore with the cone side up and hold it down with a finger.
3. Slide the new mixing chamber into the body up from the bottom until it is touching the bottom
of the orifice retainer and align the abrasive inlet hole of the chamber with the inlet hole of the
abrasive body.
4. Tighten the set screw to secure the mixing chamber.
5. Reassemble the DiaLine head and thread the head back on the adapter.

4.6 A2 Cutting head

The A2 Cutting head has two abrasive inlets to allow a connection to the head from either side
depending on the system setup and configuration. A nut and plastic collet hold the nozzle in location.
Ruby orifices and long life diamond orifices are available. Diamond orifices include a carbide wear
disc to protect the bottom of the orifice from abrasive wear.

Installing the A2 Cutting Head

1. Make sure that the top of the cutting head and the bottom
of the adapter are clean, wash out if necessary.
2. Apply a light coat of HP lubricant such as AccuGoop to
the bottom face and threads of the adapter.
3. Install the orifice retainer with the stepped diameter side
down (cone side up) into the cutting head body.
4. Thread the A2 head onto the bottom of the adapter and
torque to seal.
5. Use a 1/4" ID hose for feeding abrasive into the head.
Push the hose onto one of the abrasive body inlet fittings
until it is secured past the ridge. The other fitting must
have a plastic cap installed.
6. Loosen the nozzle nut, slide the nozzle up until it bottoms-
out in the abrasive body, and tighten the nozzle nut.
13084 ON/OFF VALVE & CUTTING HEAD MANUAL
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