PatternPro Variable Pitch Guns.pdf - 第10页

6 P/N 1048257_03  2018 Nordson Corporation PatternPro Edition 02/18 De‐energizing the System Isolate the system (melter, hoses, applicators, and optional devices) from all power sources before accessing any unprotected …

P/N 1048257_03

 2018 Nordson Corporation

PatternPro

Edition 02/18

Maintenance and Repair Practices

 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 factory‐authorized refurbished or replacement parts.

 Read and comply with the manufacturer's instructions and the MSDS

supplied with equipment cleaning compounds.

NOTE: MSDSs 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 MSDS 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

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.

P/N 1048257_03

 2018 Nordson Corporation

PatternPro

Edition 02/18

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

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 a 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.

P/N 1048257_03

 2018 Nordson Corporation

PatternPro

Edition 02/18

General Safety Warnings and Cautions

Table 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 as follows:

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

PC = Process control

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

applicators)

Table 1 General 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 MSDS. 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

MSDS 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.

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.