DuraBlue II Customer Product Manual - 第14页
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 b…
Safety
1-5
2018 Nordson Corporation
Issued 4-15
Maintenance and Repair Practices
Allow only personnel with appropriate training and experience to operate
or service the equipment.
Perform scheduled maintenance activities at the intervals described in
this document.
Relieve system hydraulic and pneumatic pressure before servicing the
equipment.
De‐energize the equipment and all auxiliary devices before servicing the
equipment.
Use only new Nordson‐authorized refurbished or replacement parts.
Read and comply with the manufacturer's instructions and the SDS
supplied with equipment cleaning compounds.
NOTE: SDSs for cleaning compounds that are sold by Nordson are
available at www.nordson.com or by calling your Nordson representative.
Confirm the correct operation of all safety devices before placing the
equipment back into operation.
Dispose of waste cleaning compounds and residual process materials
according to governing regulations. Refer to the applicable SDS or
contact the authority having jurisdiction for information.
Keep equipment safety warning labels clean. Replace worn or damaged
labels.
Equipment Safety Information
This equipment safety information is applicable to the following types of
Nordson equipment:
hot melt and cold adhesive application equipment and all related
accessories
pattern controllers, timers, detection and verification systems, and all
other optional process control devices
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
HM
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.
HM
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.
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