Eye injury hazard! Always
wear safety glasses when
Crushing hazard! Always
keep hands clear when
20-TON HYDRAULIC PRESS
INSTRUCTIONS
(For Machines Mfd. Since 7/20)
For questions or help with this product contact Tech Support at (570) 546-9663 or techsupport@grizzly.com
B. Pressure Gauge. Shows pounds of force (in
tons) per inch being applied to workpiece.
C. Table Plates. Support workpiece during
using this machine.
using this machine.
Identification
pressing operation.
D. Pump Handle. Generates hydraulic pressure
in ram when pumped up and down. Moves
ram downward.
E. Tank Relief Valve. Releases pressure from
hydraulic ram to release workpiece.
F. Hydraulic Fluid Reservoir. Holds hydraulic
fluid for operation of hydraulic ram.
B
A
C
K
E
J
D
I
Figure 1. Model T1241 identification.
A. Hydraulic Ram. Applies pressure directly
to workpiece. Hydraulic ram operates using
pressure for downward ram movement.
F
G
H
G. Micro Pump Valve. Increases hydraulic ram
pressure in small increments.
H. Standard Pump Valve. Increases hydraulic
ram pressure in large increments.
I. Bed Adjustment Holes. Holds support rods
to position press bed at desired height.
J. Support Rods. Support press bed using
holes in machine frame.
K. Press Bed. Platform for table plates supports
workpiece during pressing operation.
Always ensure workpiece is positioned
so force is evenly distributed. Offcenter workpieces can be ejected
unexpectedly from force of hydraulic ram,
striking operator or bystanders and causing
injur y.
base supports and center brace, as shown in
Figure 3, using (4) M12-1.75 x 30 hex bolts,
12mm flat washers, 12mm lock washers, and
M12-1.75 hex nuts.
2. Attach (2) angle braces to each base support
using (8) M10-1.5 x 25 hex bolts, 10mm flat
washers, 10mm lock washers, and M10-1.5
hex nuts, as shown in Figure 3.
This machine is very
heavy. Reduce risk of
strain or injury by getting
help when lifting.
3. With help from an assistand, secure cross
beams to top of columns (see Figure4) with
(8) M16-2 x 35 hex bolts, 16mm flat washers,
16mm lock washers, and M16-2 hex nuts.
When installing second cross beam, position
ram mounting plate over bottom edges of
cross beams, as shown in Step 4.
5. From above, insert hydraulic ram cylinder
through hole in ram mounting plate and
thread ram collar into position, as shown in
Figure 6.
Note: Ram collar can be tightened by insert-
ing a Phillips head screwdriver into collar
holes and lightly tapping across shaft of
screwdriver with a mallet to rotate until tight.
Collar
Hole
Cross
Beams
x 4
Columns
Figure 4. Securing cross beams to columns with
ram mounting plate positioned on bottom edge.
4. Secure ram mounting plate in center of cross
beams using (4) M8-1.25 x 16 hex bolts
through pre-drilled holes in mounting holes
(see Figure 5).
Ram Mounting Plate
Hydraulic
Ram
Cylinder
Figure 6. Securing hydraulic ram to mounting
plate with ram collar.
6. Attach hydraulic reservoir assembly to right
side of press column (see Figure 7) with (2)
M10-1.5 x 25 hex bolts, 10mm flat washers,
and 10mm lock washers, and M10-1.5 hex
nuts.
Hydraulic
Reservoir
Assembly
Frame
Mounting
Bracket
Ram
Collar
x 4
Figure 5. Securing ram mounting plate to cross
beams.
T1241 20-Ton Hydraulic Press (Mfd. Since 7/20)
x 4
Figure 7. Mounting hydraulic reservoir assembly.
-3-
7. Connect hydraulic line to top end of hydraulic ram cylinder and hydraulic tank (see
Figure 8).
8. Attach pressure gauge to the top of hydraulic ram (see Figure 8).
10. Insert bed support rods through holes in
each column to support press bed at desired
height (see Figure 10). Lift bed into place
and rest it on support rods
Note:Use thread tape on pressure gauge
threads to ensure a proper seal during operation.
Pressure
Gauge
Hydraulic
Line
Connected
Figure 8. Pressure gauge and hydraulic line
connected to hydraulic ram.
9. Assemble bed with (4) sleeve spacers
between bed sides and secure together with
(4) M10-1.5 x 130 hex bolts, 10mm lock
washers, 10mm flat washers, and M10-1.5
hex nuts, as shown in Figure 9.
ALWAYS make sure support rods are supporting bed evenly! Failure to support press
bed evenly could lead to bed accidentally
dropping during setup or operation, which
may result in crushing injury.
11. Place table plates on press bed, and insert
pump handle into left or right receiver on top
of hydraulic tank (see Figure 10).
Note:Left receiver is used for smaller incre-
mental ram movement, and right receiver is
used for larger incremental ram movement.
Pump
Handle
Left
Receiver
Right
Table
Plates
Receiver
Press Bed
(1 of 2)
Sleeve Spacer
(1 of 4)
Figure 9. Assembling press bed.
Bed Support
Rods
Figure 10. Table plates and handle positions.
x 4
-4-
T1241 20-Ton Hydraulic Press (Mfd. Since 7/20)
Anchoring to Floor
Anchoring machinery to the floor prevents tipping
or shifting and reduces vibration that may occur
during operation, resulting in a machine that runs
slightly quieter and feels more solid.
If the machine will be installed in a commercial or
workplace setting, local codes may require that it
be anchored to the floor.
If not required by any local codes, fastening the
machine to the floor is an optional step. If you
choose not to do this with your machine, we recommend placing it on machine mounts, as these
provide an easy method for leveling and they have
vibration-absorbing pads.
Lag shield anchors with lag screws (see below)
are a popular way to anchor machinery to a concrete floor, because the anchors sit flush with the
floor surface, making it easy to unbolt and move
the machine later, if needed. However, anytime
local codes apply, you MUST follow the anchoring
methodology specified by the code.
Number of Mounting Holes ............................ 4
Diameter of Mounting Hardware .................3⁄8"
Operating Press
1. Fully rotate tank relief valve (see Figure 12)
clockwise to close it.
Tank
Relief
Valve
Figure 12. Rotating hydraulic system relief valve
location.
2. Raise press bed to desired height, insert support rods, as shown in Figure 13, into holes
in machine frame, then lower bed onto support rods.
Anchoring to Concrete Floors
Machine Base
Concrete
Lag Screw
Flat Washer
Lag Shield Anchor
Drilled Hole
ALWAYS make sure support rods are supporting bed evenly! Failure to support press
bed evenly could lead to bed accidentally
dropping during setup or operation, which
may result in crushing injury.
Support Rod
(1 of 2)
Figure 13. Inserting support rod.
Figure 11. Popular method for anchoring
machinery to a concrete floor.
T1241 20-Ton Hydraulic Press (Mfd. Since 7/20)
-5-
3. Place table plates on press bed (see
Figure 14), and place workpiece onto blocks.
5. Rotate tank relief valve (see Figure 16) coun-
terclockwise to release pressure on ram, then
remove workpiece.
Ram
Press
Bed
Table
Plates
Figure 14. Positioning table plates on press bed.
Always ensure workpiece is positioned so force is evenly distributed.
Off-center workpieces can be ejected
unexpectedly from force of hydraulic ram,
striking operator or bystanders and causing
impact injury.
4. Pump handle to lower ram or increase down-
ward pressure. Refer to pressure gauge for
actual workpiece pressure (see Figure 15).
Ram should lower smoothly.
Tank
Relief
Valve
Figure 16. Rotating tank relief valve.
Maintenance
The T1241 20-Ton Press features a fully-sealed
hydraulic unit. Periodically check press for
loose mounting bolts or any unsafe conditions.
Thoroughly clean press components on an asneeded basis for best operation.
To clean/maintain press:
1. Wipe all dirt and dust off press components.
2. Apply light oil to surface of ram.
Pressure Gauge
Figure 15. Pumping handle to increase
pressure, which is indicated on pressure gauge.
3. Check hydraulic ram and press bed support rods for cracks or damage. Replace if
necessary.
-6-
T1241 20-Ton Hydraulic Press (Mfd. Since 7/20)
Parts Breakdown & List
Please Note: We do our best to stock replacement parts whenever possible, but we cannot guarantee that all parts shown here
are available for purchase. Call (800) 523 - 4777 or visit our online parts store at www.grizzly.com to check for availability.
REF P ART #DES CRIPTIONREFPART #DES CRIPTION
1
33
34
24
103
26
PINCH HAZARD!
Keep hands away
from table area
when pressing
workpiece.
29
2
3
4
104
28
25
30
21
102
31
101
32
23
WARNING!
To reduce risk of serious personal injurywhen using:
1.Read and understand manual beforeusing this machine.