ALLREDI MARCO 151E Benutzerhandbuch - Seite 10

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W-568

Use of Marco remote

control switches with

other manufacturer's

remote control systems

could cause unintended

activation of remote

control systems

resulting in the release

of high speed abrasive

and compressed air.

Only Marco remote

control switches should

be used with Marco

remote control systems.

Failure to comply with

the above warning

could result in death or

serious injury.

W-506

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)

W-519

This product is

not for use in wet

environments. Always

use a Ground Fault

Interrupter Circuit (GFIC)

for all electrical power

source connections.

Use of this product

in wet environments

could create a shock or

electrocution hazard.

Failure to comply with

the above warning

could result in death or

serious injury.

Marco

151E Remote Control Switch

OPERATING INSTRUCTIONS

Description

A remote control switch gives an operator the ability to remotely activate and deactivate

the remote control system at the abrasive blasting nozzle. An electric remote control switch

reduces the cycle time required to activate and deactivate the remote control system

compared to a pneumatic remote control switch. The reduced cycle time is most noticeable

when the operator is working at distances greater than 100 feet from the abrasive blasting

pot. The Marco

151E Remote Control Switch manufactured by Allredi™ features a spring-

assisted safety tab and control handle, providing a dual "Fail-to-Safe" design. Typical

applications include blast rooms, blast yards, bridges, oil refineries, pipelines, railcar shops,

shipyards, and storage tanks.

Operational Requirements

The following may cause safety hazards or reduced performance:

• Improper installation and/or maintenance of components.

• Use of anything other than hand pressure to activate Remote Control Switch.

• Use of electric control line smaller than 16 gauge wire.

Operating Instructions

Before using:

• Set up abrasive blasting blast pot and remote control system. (See Operator's Manuals.)

• Inspect electric control line and connectors for cracks or abrasions.

• Inspect the remote control switch for damage. Ensure Safety Tab (1) and Handle (2)

move freely without binding. Depress the handle. If the handle and safety tab are not

returned to the UP position by the springs when released, remove remote control switch

from service or repair it before using.

During use:

• To activate the remote control switch, move Safety Tab (1) forward to the DOWN position

and move Handle (2) to the DOWN position. This will allow the boss on the handle to

make contact with the micro switch.

• To deactivate the remote control switch, release the handle. The springs will return the

handle and safety tab to the UP position.

• Monitor function of remote control switch components. Malfunctioning control handles

must be taken out of service immediately and repaired or replaced.

After use:

• When abrasive blasting is concluded, inspect components for damage. Store abrasive

blasting hose with remote control switch attached in an area clear of debris and abrasive.

Up Position

Down Position