MAINTENANCE
5-7
MA-5079-ENG MICRON GEAR ADHESIVE MELTER
Pump maintenance
Inspecting for leaks
The pump is equipped with a gasket system on the shaft to prevent adhesive
from leaking through it. On occasion, some adhesive may leak out, which
makes it necessary to retighten the screws or change the gasket.
Warning: Changing the gasket with a hot pump.
In the event of a leak through the seat gaskets between the pump and the
distributor, re-tighten the pump-distributor binding screws; if the leak
continues, replace the gaskets. To do this:
1. Release the shaft coupling from the pump.
2. Retighten or remove the screws that hold the gasket in place.
3. Replace the gaskets and reassemble the parts.
Occasionally, as a result of the system’s heating-cooling cycles, it may be
necessary to retighten the screws.
Before making any changes, establish the location of the leak. However, before
replacing any parts and in case of any doubt, we recommend that you consult
the Meler Technical Service Centre.
Warning: Always wear protective gloves and goggles. Risk of burns.
Gear motor maintenance
Cleaning the motor fan
Periodically inspect the condition of the motor fan and its vent screen.
If dust has accumulated, blow gently with air to clean it (remove the protective
cover, if necessary).
Checking the lubricant
The gear reducers are delivered filled with synthetic grease for lubrication
-free of outside contamination- ‘for life’. Ambient temperature 0 ÷ 40 °C, with
peaks of as low as -20 °C and up to +50 °C.
Use only those lubricants recommended by the manufacturer. The use of other
types may cause premature wear or damage to the gear reducer.
Approximately 0.1 kg of lubricating grease fits in the gear reducer model used.
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