Demtech 500-0100/XL/A, Operator'S Manual

Page: 22 / 28

Rev. D, January 2021
Pro-Wedge XL Operator’s Manual Page 19
7.5 Wedge Timing Definition
Wedge timing is the position of the Wedge in its Engaged/Welding position in relation to
the Engagement Handle Lock-In Plunger to Lock-In Hole position. If the Wedge timing
is off the ability to adjust the welder through its full range of adjustment is compromised.
Full range travel is between the two positions of the Wedge in the Engaged/Welding
position and the Wedge in the Retracted/Loading position.
7.6 Wedge Re-Timing
Loosen the two Lock-In Disc Hold-Down Screws (2) (see Figure 6). Position the Lock-In
Disc so the two Hold-Down Screws are centered in the arced grooves of the Disc (see
Figure 6). Tighten the Hold-Down Screws. Pull out the Engagement Handle as far as
possible, approximately 5/8" (see Figure 7) which disengages the Pinion Gear from the
Wedge Rack and rotate the Engagement Handle approximately 15 degrees clockwise.
Release the Handle back in and rotate handle counter-clockwise moving the wedge towards
the Nip Rollers. This resets the engagement of the Pinion Gear to the Wedge Rack by
approximately one gear tooth. Repeat this process as many times as necessary until the
Lock-In Plunger drops into the Lock-In Hole on the Lock-In Disc and the tip of the Wedge
has approximately 1/8" clearance between it and the lower nip roller. The Wedge has now
been re-timed.