Chapter 5
Maintenance and Repair Notes
ITW Dynatec
UFD Applicator, Manual 40-43, Rev. 6.16
Page 31
Chapter 5
Maintenance and Repair Notes
5.1 Security advices for maintenance and repair
Heed all security advices given in Chapter 2.
Use only original parts from ITW Dynatec, otherwise ITW Dynatec’s
warranty is void!
Maintenance and repair work is only permitted for skilled personnel!
Always wear safety shoes, heat-resistant protective gloves, safety goggles
and protective clothing that cover all vulnerable parts of the body while
working on the heated unit! Risk of injury or heavy burns!
High Voltage! Risk of injury and mortal danger!
•
All electrical connections must be made by qualified electrical personnel.
•
Care must be taken to assure proper grounding prior to any disassembly.
•
Lockout and tag the electrical sources as required.
•
Make sure there is no electrical power on the leads you will be
connecting.
•
When covers are removed, high voltage sources create an electrocution
hazard.
•
Wear appropriate safety equipment when working with high voltage
sources.
Parts and surfaces of the unit get very hot. High temperatures! Risk of
heavy burns!
High adhesive temperature and adhesive pressure! Risk of injury or
heavy burns!
Always assume that the system is under pressure, proceed with caution.
Keep a cool-pack, or bucket of clean water near the work area.
Place a heat-resistant catchment container/underlay under the components.
Hot adhesive may come out.
CAUTION: At working temperature, molten adhesive could cause heavy
burns. Let spilled out adhesive cool down first, before removing it!
CAUTION: Use only lint-free cleaning cloth and suitable cleaner for cleaning!
Do not damage surfaces! Do not scratch above them with sharp-edged
tools, otherwise the components will get leaky and inoperable!
All maintenance and repair work has to be done at working
temperature, except as noted otherwise. Else there is a risk of
damaging the unit components!
Before any service work disconnect the external power supply and
switch the unit voltage-free:
1. Switch off the main switch and the controller.
2. Disconnect the power supply respectively remove the plug / cable.
3. Guard the unit against unauthorized restarting!
Before any service work the adhesive pressure must be relieved
throughout the system. Switch the unit pressureless:
1. Disconnect the pressure air supply.
2. Turn the pressure regulator to zero bar, if necessary. Wait approximately
1 minute until the pressure is relieved.
3. Open the pressure purge valve manually until the pressure is relieved.
