Grizzly H6231Z 10-TON Benutzerhandbuch
-16-
model h6231z (mfg. since 1/10)
Workpiece
inspection
Before using this hydraulic press, you must inspect
the workpiece. this is not a comprehensive list
but rather a list of common issues. it is up to you
to address any additional special items required to
prepare your workpiece for press operations. not
addressing the items below can lead to galled,
seized, or broken housings. in some situations,
ignoring just one of the listed items can lead to a
workpiece or tooling being ejected from the press,
which could cause severe injury or death.
the workpiece. this is not a comprehensive list
but rather a list of common issues. it is up to you
to address any additional special items required to
prepare your workpiece for press operations. not
addressing the items below can lead to galled,
seized, or broken housings. in some situations,
ignoring just one of the listed items can lead to a
workpiece or tooling being ejected from the press,
which could cause severe injury or death.
•
Workpiece Strength: make sure that the
workpiece material is designed to withstand
the intended force the press will apply.
workpiece material is designed to withstand
the intended force the press will apply.
•
Workpiece Cleanliness: make sure that the
workpiece is clean and that all burrs, grit,
rust, or damage is removed from the pressing
path. often, light oiling on the components is
beneficial to prevent galling or seizing.
workpiece is clean and that all burrs, grit,
rust, or damage is removed from the pressing
path. often, light oiling on the components is
beneficial to prevent galling or seizing.
•
Pressing Path: make sure that the direction
of the component to be pressed on or off is
correct and that the correct size of sleeve or
arbor plate is used for support.
of the component to be pressed on or off is
correct and that the correct size of sleeve or
arbor plate is used for support.
•
Retaining Mechanisms: make sure that
all retaining rings, pins, or fasteners are
removed, and no hidden secondary retainers
are present.
all retaining rings, pins, or fasteners are
removed, and no hidden secondary retainers
are present.
•
Hidden Projectiles: some components
house one or more springs. make sure that
the part to be dismantled with the press has
the applicable caging system to catch the
springs, should the workpiece slip or open up
when the retaining ring is removed and the
hydraulic pressure is relieved.
house one or more springs. make sure that
the part to be dismantled with the press has
the applicable caging system to catch the
springs, should the workpiece slip or open up
when the retaining ring is removed and the
hydraulic pressure is relieved.
•
Special Fits: make sure that interference fits
are correct before pressing a part on, and
make sure that the applicable parts have
been heated or chilled to the correct tempera-
tures to avoid galling and seizing. recognize
that not all parts were designed to be pressed
off. if in doubt, refer to the machinery repair
manual for the part you are working on.
are correct before pressing a part on, and
make sure that the applicable parts have
been heated or chilled to the correct tempera-
tures to avoid galling and seizing. recognize
that not all parts were designed to be pressed
off. if in doubt, refer to the machinery repair
manual for the part you are working on.
Controls
figure 20 shows the hydraulic pump controls
used for press operations. review the list below
to familiarise yourself with these controls.
used for press operations. review the list below
to familiarise yourself with these controls.
a. Hydraulic Reservoir. stores and cools
hydraulic fluid.
B. Pressure gauge. indicates the hydraulic
system pressure.
C. Pump Lever. Allows the operator the neces-
sary leverage to build hydraulic pressure in
the piston for pressing operations.
the piston for pressing operations.
D. Pressure Relief valve. this valve is factory
set at a safe relief pressure and should not be
re-adjusted.
re-adjusted.
E. Control valve. When the valve is rotated
clockwise to the closed position, the pump
and piston are ready for press operations.
When the valve is rotated counterclockwise
to the open position, the pump and piston are
relieved of pressure, and the press retracts to
the unloaded position.
and piston are ready for press operations.
When the valve is rotated counterclockwise
to the open position, the pump and piston are
relieved of pressure, and the press retracts to
the unloaded position.
figure 20. pump controls.
C
A
E
d
B