Crafco EZ 500 Series II, Manual

Page: 30 / 136

EZ 500 Series II Melter Part Manual
Chapter 5 Operating Instructions
©2019 by Crafco, Inc. All Rights Reserved………………..…………………………………..….Operating Instructions 5-8
Step Action
10 When sealant reaches 325°F, open “TANK, RECIRCULATION valves, and close
APPLICATOR VALVE”.
11 Reverse pump for 3-5 minutes by turning the pump toggle switch to “PUMP REVERSE”
position. When pump turns freely, return switch to “ON STANDARD” position. This
circulates hot material from bottom of tank back on top of cold material in the tank.
12 Increase heat transfer oil temperature to 500°F and material temperature to
manufacturers recommended application temperature (Approx. 380°-400°F).
13 When application of material is desired, remove hose from oven and connect to wand
assembly (Hand tight only). Insert wand tip fully into shoebox with hand wand valve in
“OPEN” position.
14 Open the “APPLICATOR VALVE”, close “RECIRCULATION VALVE”.
5.8 Loading Material into the Sealant Tank
This unit is equipped with a safety interlock system on the loading door. This system disables the
mixer hydraulic system when the lid is open to stop the mixer from turning. This is a safety feature
for the operator and should never be disabled for any reason.
CAUTION
Personal injury could occur if this safety system is disabled.
Step Action
WARNING
Following this procedure prevents hot material from getting on operators and causing
severe burns. Never throw blocks of material directly into tank. Hot material splash
hazard will result.
1 To load material into the sealant tank first open the lid.
2 Place the solid material on the lid then close the lid.
3 Continue adding solid material at intervals to allow the mixer to rotate without
jamming.
Note: If blocks of solid material are added too quickly, jamming results and slows
down the melting process.
Note: When sealant placement volume is low, or the crew has stopped working for
lunch hot oil and material temperatures can equalize. To lower material temperature
add a few blocks of cold sealant. This may not be an option if the tank is full.
Table 5-5.1 Starting the Burner for Standard Hose (continued)
Table 5-6 Loading Material into the Sealant Tank