Chapter 7
Maintenance and Repair Notes
DM55 DynaDrum PP V6, Manual No.21-18, Rev.2.19 Page 115
Chapter 7
Maintenance and Repair Notes
7.1 Security advices for maintenance and repair
Heed all security advices given in chapter 2.
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 severe burns!
High Voltage! Risk of injury and mortal danger!
Parts and surfaces of the unit get very hot. High temperatures! Risk of severe
burns!
High adhesive temperature and adhesive pressure! Risk of injury or severe
burns!
CAUTION: At working temperature, molten adhesive could cause severe
burns. Let spilled out adhesive cool down first, before removing it!
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!
Prior to disassembly of mechanical components, a complete set of O-rings,
seals and high temperature lubricant should be on hand. One quart of flushing
fluid (PN L15653 = 1 gallon) and an electrical-type heated air gun will reduce
the time required to clean components of the unit.
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.
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