14
If you are only replacing the sealing wire and Teflon tape, check the spring retainer.
The spring must be filled into the end side of the sealing bar otherwise the sealing wire
will be easily broken during heat deliver. (FIG.B)
FIG.B
SET SCREW
Feed new sealing wire through one of seal bar and secure, leaving about 3/4” (20mm) of
excess, thread element through opposite end and leave clamping screw loose. Using
tool provided or needle nose pliers, stretch element tight as shown. Secure clamping
screw and check tension by pulling up the element at the middle of the bar, maximum
pull should not exceed 3/16” (5mm). If there is not enough tension, retighten as
necessary. (FIG.C)
NOTE: Elements will break in the middle of the bar if not enough tension is set.
Install the new Teflon tape strip to the bar. Remember to change Teflon tape are regular
intervals to ensure proper sealing surface.
3
1
FIG.C
3
Summary of Contents for TC-420
Page 20: ...19 7 3 Electrical diagram 7 3 1PV 01standard 7 3 2 PV 02 standard ...
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Page 26: ...25 Sealing Bar Standard DIagram ...
Page 28: ...27 Sealing Bar Cut off Optional Diagram ...
Page 30: ...29 ...
Page 32: ...31 Electrical Standard Diagram ...