Chapter 7
Maintenance and Repair Notes
Page 122 DM55 DynaDrum PP V6, Manual No.21-18, Rev.2.19
7.10 Platen Removal
Heed all security advices given in chapter 7.1.
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!
Prior to disassembly:
• Heat the unit above the softening point of the material being pumped by the unit.
• Switch pump motor OFF.
• Activate the applicator to relieve pressure.
• Disconnect main electrical power.
• Disconnect air pressure at air control panel.
• Provide safety blocking under the platen.
Disassembly and replacement:
1. Remove the drum. Insert a fiber sheet on the floor of the unit and lower the platen
completely.
2. Remove the piston pump and air motor (see instructions in Ch. 7.8 Piston Pump
Assembly Replacement).
3. Remove the ten bolts holding the platen face and disassemble the platen assembly.
4. Disconnect all the electrical connections under the platen cover (via ceramic terminals
or the nuts on the posts) and the pneumatic connections (via barbed fittings).
5. Loosen the nuts and washers securing the three platen truss rods. Unscrew the platen
truss rods from the platen core.
6. The platen core is now loose for removal.
Platen Reassembly:
Note: all mating surfaces must be cleaned of material (adhesive), RTV sealant, or foreign
matter prior to reassembly.
Reassembly is the reverse of the disassembly procedure (above).
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