Meler PS20, Instruction Manual, Page: 66 / 100

FOCKE MELER GLUING SOLUTIONS
6-2
MAINTENANCE
Removing and changing exterior panels:
1. Disconnect the melter equipment.
2. Disconnect the compressed air from the equipment intake.
3. Turn counterclockwise 1/4 turn the two screws holding the panel.
4. Tilt the panel and pull it up by means of two handles placed below
fixing screws.
5. To replace the panels, follow steps 1 through 3 in the reverse order.
Depressurizing the system
Melting equipment belonging to the PS20 Non Stop include a safety valve (a
by-pass valve) that limits the maximum pressure within the system, especially
during continuous pumping periods with closed applicator applicators.
However, even with the motor turned off, residual pressure may exist in the
circuit. This must be kept in mind when performing any operation on the
hydraulic circuit.
Before disconnecting any hydraulic element or opening any distributor outlet,
it is necessary to perform the following steps:
1. Disconnect the equipment switch located on the front.
2. Operate the purge valve housed in each distributor to free any residual
pressure from the circuit.
3. Manually purge (or use the corresponding control command) all the
applicators that have been used.
Cleaning the tank
The hot-melt tank must be cleaned on occasion to maintain its fusion and
anti-adherence properties. The tank is covered on the inside with PTFE and
inclined enough to aid unloading the hot-melt and to avoid it from being
retained inside when consequential burning occurs.
Changing adhesive type
1. Use up as much of the adhesive as possible.
If it is necessary to unload the adhesive without having used it up as much as
possible, follow the instructions in the section ‘Emptying the tank’.