Table of Contents
Advertisement
Always depressurize
the entire system,
disconnect all power
sources and lockout/
tagout all components
before any maintenance
or troubleshooting is
attempted. Failure to
comply with the above
warning could cause
electrical shock and
inadvertent activation of
equipment resulting in
death or serious injury.
OSHA requires blast-
cleaning nozzles be
equipped with an
operating valve, which
shall be designed to
be held open only
by continuous hand
pressure and shall
close immediately upon
release of hand pressure
(i.e., a "deadman"
control). The valve
shall not be modified in
any manner that would
allow it to remain open
without the application
of continuous hand
pressure by the operator.
Failure to comply with
the above warning could
result in release of high
speed abrasive and
compressed air resulting
in death or serious injury.
OSHA 29CFR 1910.244(b)
For equipment
manufactured by entities
other than Marco,
you must consult the
Original Equipment
Manufacturer operator's
manuals, information,
training, instructions and
warnings, for the proper
and intended use of all
equipment. Failure to
comply with the above
warning could result in
death or serious injury.
9
Blastmaster
123P Remote Control System
®
Description
Remote control systems give an operator the ability to remotely activate and deactivate
the flow of air and abrasive at the nozzle. Pressure-release remote control systems
pressurize and depressurize the abrasive blasting pot each time the operator activates
and deactivates the remote control switch, allowing for the abrasive blasting pot to be
filled between activation cycles. This increases productivity and eliminates the need for a
pot tender. The Blastmaster
control system that uses a pneumatic signal from the remote control switch to remotely
activate and deactivate an abrasive blasting pot. Typical applications include blast rooms,
blast yards, bridges, oil refineries, pipelines, railcar shops, shipyards, and storage tanks.
Operational Requirements
The following is required for proper installation of a Blastmaster
Control System:
• An abrasive blasting pot with an air inlet and air exhaust outlet of 1" I.D. or greater.
The following may cause safety hazards or reduced performance:
• Improper installation and/or maintenance of components
• Improper air supply pressure (operating pressure: 50–150 PSI)
• Use of pneumatic twinline hose greater than 100 feet in length
Operating Instructions
Fig. 2
Before using:
• Inspect Blastmaster
®
leaks. Repair or replace damaged components before use.
• Test Pneumatic Remote Control Switch (5) for proper functioning. (See pneumatic
remote control switch Operator's Manual.)
• Ensure abrasive blasting pot is depressurized. (See abrasive blasting pot Operator's
Manual.)
• Connect air supply from compressor to Inlet Port (3).
• Connect Pneumatic Control Line (4) to Tandem Remote Control Valve (2).
• Connect Pneumatic Remote Control Switch (5) to Pneumatic Control Line (4).
During use:
• To begin abrasive blasting, activate the Pneumatic Remote Control Switch (5), this will
complete an air circuit to the Tandem Remote Control Valve (2), to begin pressurizing the
abrasive blasting pot.
• Monitor all components of the Blastmaster
functioning.
• To cease abrasive blasting, deactivate the Pneumatic Remote Control Switch (5), this will
interrupt the air circuit, allowing the abrasive blasting pot to depressurize.
• Inspect Blowdown Hose Assembly (1) at least twice daily for damage. Repair or replace
damaged components.
After use:
• Inspect components of the Blastmaster
Repair or replace damaged components.
123P Remote Control System is a pressure-release remote
®
123P Remote Control System components for damage and air
123P Remote Control System for proper
®
123P Remote Control System for damage.
®
123P Remote
®
Advertisement
Table of Contents
