General Service Procedures
(See Fig's 1 and 2)
1. Turn-off power to machine. Disconnect the Foot Switch.
1a. DO NOT remove air pressure. It is needed to keep the seal jaw open.
2
. [Refer to Fig 1] Remove Vacuum Rubber Mounting Assy(1). Remove Seal Bar
Guard (2). Loosen Teflon Holding Bar (3).
3. Remove Teflon Cover.
Inspect nichrome heating element and Teflon insulator. If either are damaged or burned, go to
step 4, otherwise skip to step 12
.
4. [Refer to Fig 2] Push in and hold Terminal Block (1) tighten Terminal Block Setscrew
(2) with a 1/16 Allen wrench (both ends).
CAUTION: Do not over-tighten or the hex socket will strip.
5. Remove Heating Element (3) by removing screws that holds wire ends to Terminal
Block. Retain all screws and washers.
6. Loosen Terminal Block SetScrews and remove Terminal Blocks.
7. Remove Teflon Insulator (4) and remove residue adhesive with acetone or alcohol.
8. Apply new insulator by removing protective backing and allowing 5/8" turn down onto
each end of bar, covering the spring and pinhole. With a utility knife/razor, cut-out
insulator around hole.
9. Reinstall Terminal Block with spring.
10. Install new heating element in consecutive order: screw going thru washer, wire
lug, washer, and heating element. Then tighten into the terminal block. Element
must rest against terminal block.
11. Loosen Terminal Block SetScrews.
(DON'T FORGET to loosen the Terminal Block SetScrews)
12. Installing new Teflon Cover
[Fig 1]
A. Insert Teflon Cover between Teflon holding bar (3) and Seal bar, center it,
then tighten holding bar screws.
B. Pull Teflon Cover tightly over seal bar and crease when it bends.
C. Install Seal Bar Guard (2) over Teflon Cover, tuck the cover and tighten guard
screws.
D. Replace Vacuum Rubber Mounting Assy (1).
Use the same procedure for the upper seal jaw.
It will be easier if you turn the machine upside down.
8
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