Chapter 7
Maintenance and Repair Notes
Page 116 DM55 DynaDrum PP V6, Manual No.21-18, Rev.2.19
7.2 Maintenance plan
Heed all security advices given in chapter 7.1.
Please use only the indicated lubricants and keep the prescribed maintenance intervals.
Consider in addition the enclosed regulations of manufactures.
Punctual and conscientious maintenance of the unit secures not only a trouble free
function, but prevents also for expensive repair costs.
Remove all materials and tools used during the repair or maintenance from the workspace
of the unit.
Place a heat-resistant catchment tank under the components. Hot adhesive may come
Maintenance plan:
Operating time/
frequency
Inspection point / maintenance notes
• Remove dropped out adhesive and scrap adhesive and search for the cause
of that, eliminate the cause.
• Listen for abnormal sounds of the unit, e. g. from the motors, pumps, etc.
• Clean the Bulk Melter and components from dirt.
• Check platen seal for wearing and replace if necessary.
• Check air supply connections for leaks and tighten if loose or replace if
necessary.
• Check piston pump inlet check valve for leaks and clean if necessary. See
Ch. 7.4.
• Check the solenoid valves for proper function and replace it if necessary.
• Check monthly or as required the Supply Air Filter/ Regulator for water
accumulation and drain if necessary. See Ch. 7.5.
• Check the air injection valve for plugging and clean it.
• Check pump mounting bolts for tightness and tighten to 30 ft/lbs evenly with
torque wrench.
• Check all platen cover bolts for tightness and tighten to 25 ft/lbs evenly with
torque wrench.
• Check all hose fittings for tightness and tighten if necessary.
• Due to temperature differences a loosening of threads (threaded
connections) is possible. Check all parts with threads, all screw fittings and
fasteners for tightness and tighten them if necessary.
• Clean the Bulk Melter.
• Complete check-up for wearing.
• Complete maintenance.
• Motor will never need lubrication.
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