DuraBlue II Customer Product Manual - 第15页

Safety 1-7  2018 Nordson Corporation Issued 4-15 General Safety Warnings and Cautions Table 1‐1 contains the general safety warnings and cautions that apply to Nordson hot melt and cold adhesive equipment. Review the ta…

Safety

1-6

 2018 Nordson Corporation

Issued 4−15

Equipment Shutdown

To safely complete many of the procedures described in this document, the

equipment must first be shut down. The level of shut down required varies by

the type of equipment in use and the procedure being completed.

If required, shut down instructions are specified at the start of the procedure.

The levels of shut down are:

Relieving System Hydraulic Pressure

Completely relieve system hydraulic pressure before breaking any hydraulic

connection or seal. Refer to the melter‐specific product manual for

instructions on relieving system hydraulic pressure.

De‐energizing the System

Isolate the system (melter, hoses, applicators, and optional devices) from all

power sources before accessing any unprotected high‐voltage wiring or

connection point.

1. Turn off the equipment and all auxiliary devices connected to the

equipment (system).

2. To prevent the equipment from being accidentally energized, lock and

tag the disconnect switch(es) or circuit breaker(s) that provide input

electrical power to the equipment and optional devices.

NOTE: Government regulations and industry standards dictate specific

requirements for the isolation of hazardous energy sources. Refer to the

appropriate regulation or standard.

Disabling the Applicators

NOTE: Adhesive dispensing applicators are referred to as “guns” in some

previous publications.

All electrical or mechanical devices that provide an activation signal to the

applicators, applicator solenoid valve(s), or the melter pump must be

disabled before work can be performed on or around an applicator that is

connected to a pressurized system.

1. Turn off or disconnect the applicator triggering device (pattern controller,

timer, PLC, etc.).

2. Disconnect the input signal wiring to the applicator solenoid valve(s).

3. Reduce the air pressure to the applicator solenoid valve(s) to zero; then

relieve the residual air pressure between the regulator and the applicator.

Safety

1-7

 2018 Nordson Corporation

Issued 4-15

General Safety Warnings and Cautions

Table 1‐1 contains the general safety warnings and cautions that apply to

Nordson hot melt and cold adhesive equipment. Review the table and

carefully read all of the warnings or cautions that apply to the type of

equipment described in this manual.

Equipment types are designated in Table 1‐1 as follows:

HM = Hot melt (melters, hoses, applicators, etc.)

PC = Process control

CA = Cold adhesive (dispensing pumps, pressurized container, and

applicators)

Table 1‐1General Safety Warnings and Cautions

Equipment

Type

Warning or Caution

WARNING! Hazardous vapors! Before processing any polyurethane

reactive (PUR) hot melt or solvent‐based material through a compatible

Nordson melter, read and comply with the material's SDS. Ensure that

the material's processing temperature and flashpoints will not be

exceeded and that all requirements for safe handling, ventilation, first

aid, and personal protective equipment are met. Failure to comply with

SDS requirements can cause personal injury, including death.

WARNING! Reactive material! Never clean any aluminum component

or flush Nordson equipment with halogenated hydrocarbon fluids.

Nordson melters and applicators contain aluminum components that

may react violently with halogenated hydrocarbons. The use of

halogenated hydrocarbon compounds in Nordson equipment can

cause personal injury, including death.

HM, CA

WARNING! System pressurized! Relieve system hydraulic pressure

before breaking any hydraulic connection or seal. Failure to relieve the

system hydraulic pressure can result in the uncontrolled release of hot

melt or cold adhesive, causing personal injury.

Continued...

Safety

1-8

 2018 Nordson Corporation

Issued 4−15

Table 1‐1General Safety Warnings and Cautions (contd)

Equipment

Type

Warning or Caution

WARNING! Molten material! Wear eye or face protection, clothing that

protects exposed skin, and heat‐protective gloves when servicing

equipment that contains molten hot melt. Even when solidified, hot melt

can still cause burns. Failure to wear appropriate personal protective

equipment can result in personal injury.

HM, PC

WARNING! Equipment starts automatically! Remote triggering devices

are used to control automatic hot melt applicators. Before working on

or near an operating applicator, disable the applicator's triggering

device and remove the air supply to the applicator's solenoid valve(s).

Failure to disable the applicator's triggering device and remove the

supply of air to the solenoid valve(s) can result in personal injury.

HM, CA, PC

WARNING! Risk of electrocution! Even when switched off and

electrically isolated at the disconnect switch or circuit breaker, the

equipment may still be connected to energized auxiliary devices.

De‐energize and electrically isolate all auxiliary devices before

servicing the equipment. Failure to properly isolate electrical power to

auxiliary equipment before servicing the equipment can result in

personal injury, including death.

HM, CA, PC

WARNING! Risk of fire or explosion! Nordson adhesive equipment is

not rated for use in explosive environments and has not been certified

for the ATEX directive or as nonincendive. In addition, this equipment

should not be used with solvent‐based adhesives that can create an

explosive atmosphere when processed. Refer to the SDS for the

adhesive to determine its processing characteristics and limitations.

The use of incompatible solvent‐based adhesives or the improper

processing of solvent‐based adhesives can result in personal injury,

including death.

HM, CA, PC

WARNING! Allow only personnel with appropriate training and

experience to operate or service the equipment. The use of untrained

or inexperienced personnel to operate or service the equipment can

result in injury, including death, to themselves and others and can

damage to the equipment.