Meler Micron 5, Instruction Manual

Page: 73 / 118

MAINTENANCE
5-3
MA-5079-ENG MICRON GEAR ADHESIVE MELTER
System depressurisation
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. Turn off the machine switch on the door of the electrical cabinet.
2. Operate the purge valve housed in each distributor to free any residual
pressure from the circuit. Adhesive residues fall down by the laterally
positioned chute for this purpose.
3. Purge all applicators that have been used either manually or with the
corresponding program command.
Access to the interior of the equipment
Access to distributor
To access the distributor where both the bypass valve pressure regulator and
the purge-filter assembly are located it is necessary to open the casing as
indicated. To do this, loosen the quarter turn screw that keeps the access door in
the closed position (A).
Access to pump gear- motor
To access the pump- gear motor assembly, it is necessary to remove the electrical
cabinet from its location together with the portion of the chassis that lies
underneath. To do this, loosen the quarter turn screw that keeps the equipment in
the closed position (B) and slide it on the guides.
Next, open the access door to the distributor (A) and remove the front casing by
releasing the screws as shown (C).
To access the interior of the equipment it is not necessary to open the
electrical cabinet door.
A
C
B
C