Crafco EZ 500 Series II, Manual

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EZ 500 Series II Melter Part Manual
Chapter 5 Operating Instructions
©2019 by Crafco, Inc. All Rights Reserved………………..…………………………………..….Operating Instructions 5-4
Step Action
11
After the hose reaches the temperature set point, the light in the control box marked
“HEATED HOSE” turns off.
12
Once the hose reaches 325° F the red light marked “PUMP” will illuminate indicating that
the temperature interlock will allow operation of material pump.
Important: The hose must reach 325°F before dispensing can take place. If the hose
does not dispense when the trigger is activated, allow the material to heat longer. If the
hose still does not dispense, shut the machine down, locate and remove the plug in the
line.
The oven must be at 300°F for 20 minutes before attempting to pump. The oven
temperature can be regulated by opening the slide gate to increase temperature or close
slide gate to decrease temperature. Slide gate is located on passenger side.
13
Remove hose and wand from transport position and place wand tip in shoebox.
14
When sealant reaches application temperature, open “TANK, RECIRCULATION.
15
Reverse pump for 3-5 minutes by turning the pump toggle switch to “PUMP REVERSE”.
When pump turns freely, return switch to “ON ELECTRIC” position.
16
Depress wand trigger to recirculate material back into the tank to get material flowing
freely through the pump. Ensure wand tip is fully inserted into the shoebox with the door
closed until material is flowing freely.
17 When application of material is desired, open “APPLICATOR VALVE” AND close
“RECIRCULATION VALVE”. See Table 5-8 Dispensing the Material – Electric Hose
CAUTION
DO NOT twist or kink the hose.
Avoid sharp bends and continuous twisting by maintaining a minimum 10-inch bend
radius.
DO NOT use a setting on the hose controller if more than 400°F.
DO NOT move or bend the hose when cold: it can cause damage to the hose.
DO NOT leave the hose cycling for longer than 30 minutes without dispensing material;
coking can occur and permanently damage the hose.
DO NOT remove the hose from the boom during operation or kinking will occur.
Important: It is strongly recommended that the hose be stored in the boom (locked
position) when not in use or when in transit. This will prevent twisting or kinking.
Table 5-2.1 Starting the Burner for Electric Hose (continued)