KNOVA KN 7420-12 Manual page 3

UNPACKING AND ASSEMBLING HYDRAULIC PRESS
Handle - Handle Wrench
With the jack sitting on the jacking plate
place the jack handle wrench over release
valve. Turn handle slowly clockwise until
firm DO NOT over tighten. Remove han-
dle from release valve and slide handle
into handle base on jack.
Testing Handle Operation
Briefly test press operation as follows
BEFORE using. To raise jack, twist handle
clockwise until it is firm. Do not force or
tighten beyond this point. Take handle
from release valve and place in handle
sleeve, Pump handle a few times to raise
jack about halfway. If jack does not begin
to rise after a few pumps, check to make
sure the release valve is tight. With jack
raised, place handle on release valve
twist handle slowly counterclockwise to
lower jack. A normal hissing sound may
be heard as jack lowers and pressure in
hydraulic cylinder is released.
OPERATING PRESS
Preparing Work Area
Before using the press, it is important to
prepare work area properly. Follow this
procedure each time the press is used
to help prevent property damage and or
serious injury.
1.) Thoroughly inspect press for damage
or wear before each use. Briefly test
operation of unloaded jack before
using to press any job. If jack is
damaged or is malfunctioning DO NOT
USE until the problem is corrected.
2.) Consult owner's manual for safety
precautions correct use and
recommended procedures before
using the press. The working load
limit of the press is 12000 kg. NEVER
EXCEED WORKING LOAD LIMIT OF
PRESS.
3.) Clear children and others from work
area before using the press. Another
adult should be nearby for extra safety
and assistance but must be clear of
press as it is used.
4.) Never use to compress springs or
other objects that could be ejected
from the press. Do not compress
objects that could shatter.
5.) Clear obstructions from work area.
Working in tight or cluttered work
areas is dangerous.
6.) Ensure Press and operator are on
solid, level ground such as paved or
concrete driveway or garage floor.
Uneven or sloped surfaces create
hazardous working conditions and may
dangerously impede the function of
the press.
Using the Press
This shop press comes with two arbor
plates patterned to allow for wide variety
of pressing applications.
1.) Adjust the press plate to the desired
height. Consider a comfortable height
for the operator and the distance of
travel of the jack.
2.) Twist jack handle completely clockwise
on the release valve. Place handle in
sleeve and slowly pump handle until
press plate just begins to contact the
work piece.
3.) Inspect position of press plate and the
arbor plates making sure it is centered
and properly engaging the work piece.
4.) Continue pumping handle until press
has completed the required operation.
Pay attention to work piece position
as press is applying pressure to be
sure there is no danger of slipping off
or forcing out of the work piece.