VALCO MELTON D-90, Руководство пользователя

Страница: 94 / 150

7-5 Valco Melton
Section 7 – Maintenance MM125 - D-90 Hot Melt Unit
CAUTION! CAUTION! CAUTION! CAUTION! CAUTION! When changing adhesives, always consult adhesive
suppliers to check compatibility between adhesives.
Failure to comply could result in damage to the
equipment.
To change the adhesive, follow these steps:
1. If the old adhesive and the new adhesive are compatible, pump
enough of the new adhesive through the system to ensure that all
of the old adhesive has been cleared out (generally 3 to 5 lbs. or
1.1 to 1.9 kg).
2. If the two materials are not compatible, flush the system (see
“Flushing the System” below).
The system needs to be flushed:
• When changing to an adhesive that is not compatible with the
previously used adhesive
• When the unit is not used for a prolonged period
Changing the
Adhesive
Flushing the
System
Use a purge recommended by the adhesive manufacturer.
CAUTION! CAUTION! CAUTION! CAUTION! CAUTION! If a cleaning solution is to be flushed through the hot
melt system, it must be compatible with silicone,
Viton,Teflon, carbon graphite, brass, steel and
aluminum. Consult the adhesive manufacturer to find out
which cleaning solutions are recommended for the
adhesive you are using. Failure to comply could result in
damage to the equipment.
To flush the system without a purge system, follow these steps:
1. Fill the tank with the purge material.
2. Close the lid.
3. Set the temperature of the heating zones to the proper setting for
the purge material.
WARNING! WARNING!
WARNING! WARNING!
WARNING! If the system is hot, wear insulated gloves
and eye protection when disconnecting
hoses. Trapped air pockets may cause
adhesive spray and result in personal injury
(burns) or death.
4. Make sure that the pump is turned off.