VALCO MELTON D-90, Manual

Page: 32 / 150

4-8 ValcoMelton
Section 4 - Installation MM125 - D-90 Hot Melt Unit
WARNING! WARNING! WARNING! WARNING! WARNING! Never disconnect the hot melt hoses from a running unit.
Hot melt is under high pressure. Turn off the pump, shut
off power to the unit, and actuate the gun to relieve
residual pressure before removing the hose. Failure to
observe could result in personal injury, death, or
damage to equipment.
CAUTION! CAUTION!
CAUTION! CAUTION!
CAUTION! Do not operate the unit with the fluid outlet ports open to
the air. Failure to observe could result in personal injury,
death, or damage to equipment.
When routing and installing heated hoses, follow these guidelines:
• Avoid creating sharp corners and edges.
• Do not bend hoses sharper than 18" (460 mm) radius.
• Do not group heated hoses so that they contact one another.
• Avoid positioning hoses where they can be stepped on or have a
chance of being crushed or cut.
• Avoid the use of unnecessarily long hoses where the hose is
looped or curled on the floor. Excess twisting of the hose can
cause irreparable damage to it.
• Maintain separation between hoses to avoid hot spots.
To connect the hot melt hoses to the unit, follow these steps:
1. Using a pair of wrenches, one on the fluid outlet fitting and the
other on the fluid cap, remove the protective caps from the fluid
outlet fittings.
2. Ensure that the fluid outlet fitting is tight into the machine.
3. Ensure that the fluid outlet ports are clean.
4. Select the end of the glue hose that has the lead assembly with
the male electrical connector (Figure 6).
Connecting
the Hoses