Press the vacuum "Manual On/Off" key and the pump
should run. If not, check that the pump is plugged into the
back of the press and then have a qualified electrician re-
check the electrical hookup. (If separate ground and neu-
tral lines are not installed, the pump may not operate even
though the display illuminates.)
After turning on the pump, the display should read a mini-
mum of 20" of Hg for: 3648H within 40 seconds, 4468H
within 1 minute and for the 5298H within 2 minutes. If
there is any difficulty in drawing a proper vacuum, refer to
the Owner’s Adjustment Procedures section of Page 24 of
this manual.
Press the "Heat On" key and the press should begin to heat
up to 180ºF (+/- 2ºF) within 15-20 minutes. If not, call
Hunt Technical Service at 888-240-6021.
The press is now ready for use.
Adjustment Procedures
Proper leveling of the press and adjustment of the hinges
and latch are necessary to consistently achieve proper
vacuum. Check the following owner adjustment procedures,
in the order listed, if any difficulty arises.
Leveling
If the press is not placed on a sturdy, flat, level surface,
proper operation cannot be guaranteed. Ensure press level-
ness by opening the press and placing a 2’ carpenter’s level
on the frame. Shim the floor stand legs so that the frame of
the press is level (both front-to-back and side-to-side). If not
on a floor stand, adjust the corner feet until the press is level.
Hinge Adjustment
After leveling the press, check the adjustment of the rear
hinges. These might shift during shipment, handling or
rigorous use and are essential to proper alignment of the
top to the base. To realign, follow these instructions:
1. Close and set temperature to 180ºF.
2. As your assistant holds open the lid, remove the clips
from the bottom of the gas springs (located around the
bottom socket head only) using the needle nose pliers.
This could possibly be done by hand. Bump first the
bottom of the gas spring off the ball sockets from both
left and right sides of the machine. Then remove the top
by grasping the gas spring and tilt away from ball stud.
Spring will come off. The gas springs MUST be taken
completely off the machine.
3. Loosen (do not remove) screws in the slotted holes of the
hinges, located on the back of the machine.
4. Once machine is fully heated, start the vacuum. Give unit
45 seconds to 1 minute to pull full vacuum. If no
vacuum is achieved, walk around machine and put slight
pressure on lid in various sections until a full vacuum is
achieved.
5. Tighten set screws on hinges and replace gas springs.
If any further questions arise, contact your authorized
Bienfang
®
dealer or the Hunt Technical Service Department
at 1-888-240-6021.
INSTALLATION AND PREPARATION
(CONTINUED)
5
