⑧ Adjusting the screw feed air flow rate
If operation is still unsatisfactory after adjusting the
screw feed air pressure and time, then try adjusting
the feed air flow rate. Adjust this by using the
switch rod adjuster screw on the left side of the
escapement of the feeder unit. To make the
screw feed speed faster, increase the air flow in the
screw feed hose by first loosening the nut and
then turning the switch rod adjuster screw
counterclockwise. To lower the screw feed speed
on the other hand , turn the adjuster screw clockwise
to lower the air intake flow. Setting too high an air flow
rate will speed up the screw feed speed but
also damage the screw feed hose's internal surfaces.
Use caution here because the screw feed will
also use more compressed air so that the escapement
Note：In the auto feeder unit, screws are
operation will worsen somewhat.
pressured-fed from the hose fitting
air-blow unit (pressure feed block)
of the ES unit, so the switch rod
adjuster screw is tightened in the clockwise
direction.(see page 17 clause 8)
⑨ Changing the screw specifications
Screw specifications on the MK-3020 can be changed by
replacing the cartridge type escape attachment.
(You must also change the screwdriver if using the
VIS SETTER Handy as the screwdriver.) In that case,
consult your dealer for information.
1) Remove the screws from inside the hopper and chute.
2) Open the upper cover, pull the nylon latch on the
front cover and remove it.
3) Remove the left side cover.
4) Loosen impeller bolt ①, turn the bolt ② to the right,
and raise the impeller up all the way.
5) Loosen the impeller setscrews ① (two screws),
and pull off (remove) the raised impeller.
6) Pull off (remove) the gate.
7) Remove the tube from the air pipe quick-release
fitting on the escapement.
8) Loosen the escape attachment bolts, and remove them.
9)Install the new escape attachment(for new screw
specifications).
10) To reassemble, reinstall the parts in the reverse
of the above sequence or other words from ⑨
through ①. Now align the impeller with the chute
center, adjust the impeller height (see page 13),
and make the head guide forward-back adjustment
(see page 14).
11) Replace the screw feed hose with one that matches
the new screw specifications.(If using the
（ビスセッターハンディとして、ドライバーをお使い
VIS SETTER Handy as the screwdriver, you must
also replace the screwdriver with one that matches
the new screw specifications.)
③ 取付けねじ
Nut
More
air
Less air
Switch rod adjuster
screw
Mounting
screws
Mounting
screws
Bolt
②
Bolt
①
Setscrews
Escapement
attachment
bolt
Escapement
attachment bolt
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