travel plate. On a Model 1100, the factory setting for this distance is typically 2-3/4
inches. On a Model 2200, the factory setting for this distance is typically 2-7/8 inches.
On either machine, this distance can be safely reduced to 2-1/4 inches if needed.
Below 2-1/4 inches, pressing results may become inconsistent.
3.2. Travel plate or bearings are worn
Damage or wear to the rectangular travel plate that spans between the two support
columns on the machine will cause incomplete, inconsistent and unpredictable
pressings. As a rule of thumb, you should not be able to “wobble” the travel plate with
your hands. If it does, chances are that the travel plate bearings are worn or that the
machine columns have been damaged.
3.3. Machine has been dropped and knocked out of alignment
If a machine has been dropped, check for obvious signs of damage. Additionally check
that the top and bottom of each support column meets the machine at a right angle;
that there is no gap between the top or bottom of each column and its mating surface
and that the mating surface of the machine is not “coined” with an impression of the
top or bottom of the column. Finally check that both columns line up over their
complete length when viewed from the front of the machine and that they are not
skewed at an angle.
Bent or damaged support columns are one of the most serious types of damage that a
machine can sustain. Comtec must be contacted to determine if the machine can be
salvaged.
Symptoms of bent or damaged support columns include failure of the travel plate to
move or a travel plate that moves up but not down.
3.4. Machine columns dry or dirty
Comtec recommends that the two support columns be lubricated at least once a
month to maintain proper operation. The shafts can be lubricated with the same oil
that is in the machine’s hydraulic reservoir. Dry shafts or shafts with severe nicks or
scratches will produce inconsistent and unpredictable pressing results.
3.5. Failed bearing
Each travel plate uses 2 bearings to move up and down the support columns. If these
bearings are worn or the support columns are damaged or scratched the machine will
press unevenly and inconsistently. In severe cases, failed bearings will cause the travel
plate to move up, but not come back down on its own. Contact Comtec to see if
replacement bearings are available for your machine.
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