Schmidt AmphiBlast 120, Operation And Maintenance Manual

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Copyright © 2019 Axxiom Manufacturing, Inc.
6.3 Closure Assembly Opening Procedure (See Figure 6.2, 6.3.1 and 6.3.2)
The closure assembly is part of a Pressurized Vessel. Propelled objects will cause serious injury
or death. Depressurize vessel before opening the closure assembly. See Section 6.2.
6.3.1. Taking the proper fall protection measures, access the closure (#5) using the bulk
abrasive blaster ladder. See Figure 6.2.
6.3.2. The bulk abrasive blaster MUST be completely depressurized before attempting to open
the closure assembly (See Section 6.2). Verify that the abrasive blaster is completely
depressurized by opening the pressure indication ball valve (#63) next to the closure
(see Figure 6.2). If any air leakage occurs, DO NOT CONTINUE. Follow the
depressurizing procedure in Section 6.2. DO NOT depressurize the bulk abrasive blaster
through the pressure indication ball valve (#63).
Figure 6.3.1
– Bulk Abrasive Blaster Closure Assembly
6.3.3. In the numbered sequence shown in Figure 6.3.1(b), swing each of the camlock handles
(#29) of the closure (#5) into the “open position.” DO NOT swing any swing bolts out
of the holding lugs. Hold the swing bolt within the holding lug with one hand, and
swing each camlock handle down with the other hand.
Note: The Halok® Assembly
(#26) prevents the swing bolts from swinging out of the holding lugs until all camlock
handles are in “open” position. See Figure 6.3.1.
The closure assembly is part of a Pressurized Vessel. Component failure will propel
objects causing serious injury or death.
DO NOT use a hammer, wrench, or any such tool or device to strike the camlock
handles (#29) into position. Use of such tools or devices can cause damage to parts
resulting in component failure. If necessary a piece 1/2” pipe 12 inches long can be
slipped over the end of the camlock handle to increase leverage.
If there is difficulty in swinging any camlock handle to the “open position” DO NOT
CONTINUE. Difficulty in swinging the camlock handles may be a sign of air pressure
inside the bulk abrasive blast vessel. Opening the closure assembly with air pressure
inside the bulk abrasive blast vessel will cause serious injury or death. Swing all the
camlock handles back into the “closed position”, then follow the depressurizing
procedure in Section 6.2 and check for faulty ball valves (#3 and #4). Contact Axxiom
Manufacturing, Inc. for technical support.