9727 datasheet(19/26 Pages) 3M

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Repair Procedures

Heater Check-Out

Caution

Disconnect air and electrical power and make sure

applicator is at room temperature before servicing

3M™ Scotch-Weld™ Hot Melt Applicator PG II LT.

Failure to disconnect air and electrical power before

servicing may cause electrical shock or damage to the

applicator.

Use Volt/Ohm Meter to check electrical continuity of

each heater. If continuity exists, heater is okay. First

remove heat shield. Heaters need not be removed from

the block. Check in the following sequence: left front,

right front, right rear, left rear. To start the check,

remove only one wire from its connection on the

terminal strip.

Place one probe from the meter on the connector of the

wire that has been removed, and with the other probe,

touch the matching connector on opposite side of the

applicator. If needle on Volt/Ohm Meter swings, heater

is okay.

Reconnect wire that was removed first, and continue

sequence. If one or more heaters are burned out, refer

to Repair Procedure, pages 13 through 19.

9727 Datasheet(PDF) 19 Page - 3M Electronics