Formax FD 4400 - Manual (Page 13)

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3. Turn the speed control to ½ or full speed. Place
your thumb on the back of the stack to keep paper
from feeding. Press the power button, the sucker
wheel will start to turn. Reduce the pressure of your
thumb to feed only 3 to 4 sheets. Press your thumb
down to stop the feeding again. Press the power
button to stop the sucker from turning. If the paper did
not feed, adjust the position of the vacuum advance,
bleeder valve, or sheet separator.
Bleeder Valve (Vacuum Adjustment)
There is a bleeder valve on the vacuum pump, (Fig 20),
which allows for vacuum adjustment from completely
off to completely on. General settings for the bleeder
valve are half open for 20# stock, and closed for 80#
and heavier stock. If your machine is feeding doubles,
this can be opened slightly to “relieve” some of the
vacuum and stop the double feeding.
Separator Guide Lock
Set Screw
Fig 19
Fig 20
OPERATING Tips
1. To stop the machine just push on either one of
two stop buttons. Opening safety cover or lifting jam
detection grill will also stop machine.
2. To restart the machine start button must be
pressed. CAUTION: Machine will restart at same
speed that it was running at unless speed control
thumbwheel is turned down.
3. Some paper has a natural curve. Sometimes this
curve tends to catch air and sail. If this occurs, try
running them upside down.
4. Perforations vary in strength. If forms are bursting
hard, tearing, or breaking behind tear bar, vary form
length setting up to 1/2” ahead or behind actual form
size setting, and/or put tear bar in low position.
5. Stacker wheel should not stop the form until form
clears snap rollers.
Open Position