7-22
Disassembly and Repair
Tank triac replacement
Figure 7.52 - Tfiac Wire Connector Details,
1 Wire nos. 6 and 6A
2 Wife no. 7
3 Wire no. 4
4 Narrow prong
1. Turn the main electrical switch OFF at the applicator and disconnect
input line voltage from the applicator.
+
63
WARNING: Shock hazard. Disconnect the applicator from
.
input electrical line voltage. Failure to disconnect line voltage
from the applicator may result in a serious electrical shock
2. Remove electrical enclosure cover by first removing the captive
screw on top of the cabinet.
3. Disconnect the three wires from the tank triac attached to the base of
the unit.
4. Remove the two screws that secure the triac to the base unit.
5. Secure the new triac to the base of the unit with the two screws
removed in step 4. The orientation of the triac is not important.
6. Connect the three wires to the tank triac in accordance with the
following instructions (see Figure 7.52).
a. Locate the smallest of the three prongs on the relay. There will be
one narrow prong and two wider ones.
b. Connect wire 7 to the narrow prong.
c. Connect wire 4 to the first prong clockwise (looking down) from the
narrow prong.
d. Connect wires 6 and 6A (fastened together in one crimp socket) to
the first prong counterclockwise (looking down) from the narrow
prong.
7. Replace the electrical cabinet enclosure and secure it with the
captive screw on top of the cabinet.
8. Set the temperature controls to the minimum setting.
9. Restore input electrical power to the applicator.
10. Restore the system to operation in accordance with the Daily Startup
procedure in Section 4.
PIN 106 701A
41-23CQSP - Issued l/94
0 Nordson Corporation 1994
All Rights Reserved
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