Grizzly T27978 Instructions Manual

MODEL T27978

50-TON HYDRAULIC PRESS

INSTRUCTIONS

For questions or help with this product contact Tech Support at [phone] or [e-mail]

EYE INJURY HAZARD!
Always wear safety glasses
during use to prevent

serious personal injury.

INJURY HAZARD!
When servicing, always dis­connect tool from air to pre­vent unexpected operation.

125 PSI

MAX AIR PRESSURE!
Exceeding this PSI may
result in injury/tool damage.

Workpieces positioned off-center below
hydraulic ram can be ejected unexpectedly
from force being applied unevenly, striking
operator or bystanders with great force.
Always ensure workpiece is positioned
so force is evenly distributed. STOP and
release compression if workpiece shifts
during pressing.

Inventory

Open shipping crate and remove inventory items
included inside (see Figure 2).

Description (Figure 2) Qty

A. Hydraulic Press Assembly (not shown) ...... 1

B. Base Supports ............................................ 2

C. Pump Handle .............................................. 1

D. Support Rods ............................................. 2

E. Press Blocks ............................................... 2

F. Angle Braces .............................................. 4

G. Hardware Bag (not shown)

• Hex Bolts M10-1.5 x 25 ....................... 12

• Cap Screws M8-1.25 x 30 .................... 4

• Lock Washers 8mm ............................ 12

• Flat Washers 8mm ............................. 12

• Hex Nuts M10-1.5 ............................... 12

Figure 1. Model T27978.

Needed For Setup

Description Qty

Additional People ................................................. 2

Safety Glasses .............................................. 1 Ea.

Open-End Wrenches 13, 16, 18, 19mm ...... 1 Ea.

ISO VG32 Hydraulic Oil ........................2.5 Quarts

COPYRIGHT © JUNE, 2017 BY GRIZZLY INDUSTRIAL, INC. REVISED DECEMBER, 2018 (JL)

NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE

OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC.

#JH18676 PRINTED IN CHINA

B

C

D

F

Figure 2. Inventory items.

E

Identification

A

I. Pump Handle. Manually lowers ram into

workpiece in small increments.

D

J. Press Bed. Supports workpiece during

E

pressing operation. Bed raises and lowers
using winch.

F

B

K

Figure 3. Machine components.

A. Winch. Raises and lowers press bed to

adjust bed height.

B. Table Plates. Support workpiece during

bending operation.

C. Hydraulic Ram. Applies pressure directly

to workpiece. Hydraulic ram operates using
both incoming air line for rapid downward
movement and manual pump handle for
slower downward ram movement.

D. Pressure Gauge. Shows pounds of force

being applied to workpiece.

C

G

H

J

I

K. Support Rods. Support press bed at prede-

termined heights of holes in machine frame.

Assembly

1. With the help of two assistants, remove

press from shipping crate, hold upright, and
attach both base supports (see Figure 4)
using (4) M10-1.5 x 25 hex bolts, 10mm flat
washers, 10mm lock washers, and M10-1.5
hex nuts.

This machine and its
components are very
heavy. Reduce risk of
strain or lifting injury
by getting lifting help or
using power lifting equip­ment such as a forklift to
move heavy items.

2. Attach 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 4.

Angle
Brace

Base

Supports

E. Hydraulic Fluid Reservoir. Holds hydraulic

fluid for operation of hydraulic ram.

F. Tank Relief Valve. Releases pressure from

hydraulic ram to release workpiece.

G. Air Cylinder Control. Valve controls amount

of air released from air line cylinder to
hydraulic ram.

H. Air Line Cylinder. Provides pressure to

lower hydraulic ram. Maximum incoming air
pressure is 125 PSI.

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Figure 4. Supports and angle braces installed.

T27978 50-Ton Hydraulic Press (Mfd. 12/16)

3. Attach hydraulic reservoir assembly to out-

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.

side of press frame (see Figure 5) by thread­ing (4) M10-1.5 x 30 hex bolts, 10mm flat
washers, and 10mm lock washers through
frame mounting bracket into threaded holes
of hydraulic assembly.

Hydraulic

Assembly

Anchoring to Floor

Number of Mounting Holes ............................ 4

Diameter of Mounting Hardware .................

3

⁄8"

Frame

Mounting

Bracket

Figure 5. Mounting hydraulic assembly.

4. Attach winch to outside of press frame, as

shown in Figure 6, using (2) M10-1.5 x 25
hex bolts, 10mm flat washers, and M10-1.5
hex nuts.

x 2

Figure 6. Mounting winch to press frame.

x 4

Winch

Anchoring to Concrete Floors

Lag Screw

Flat Washer

Machine Base

Concrete

Lag Shield Anchor

Drilled Hole

T27978 50-Ton Hydraulic Press (Mfd. 12/16)

Figure 7. Popular method for anchoring

machinery to a concrete floor.

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