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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

For questions or help with this product contact Tech Support at (570) 546-9663 or [email protected]

MODEL T27978

50-TON HYDRAULIC PRESS

INSTRUCTIONS

Figure 1. Model T27978.

EYE INJURY HAZARD!

Always wear safety glasses 

during use to prevent 

serious personal injury.

INJURY HAZARD!

When servicing, always dis-

connect tool from air to pre-

vent unexpected operation.

125 PSI

MAX AIR PRESSURE!

Exceeding this PSI may 

result in injury/tool damage.

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

Needed For Setup

Inventory

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 2. Inventory items.

F

E

D

C

B

Open shipping crate and remove inventory items 
included inside (see 

Figure 2).

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. 

Summary of Contents for T27978

Page 1: ...age 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 Needed For Setup Inventory 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...

Page 2: ...um incoming air pressure is 125 PSI I Pump Handle Manually lowers ram into workpiece in small increments J Press Bed Supports workpiece during pressing operation Bed raises and lowers using winch K Support Rods Support press bed at prede termined heights of holes in machine frame A B C E G K Figure 3 Machine components H J F D I 1 With the help of two assistants remove press from shipping crate ho...

Page 3: ...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 rec ommend 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 con crete floor because the anchors sit flush with ...

Page 4: ...lief Valve Figure 10 Support rod placement Support Rod 1 of 2 3 Connect air valve to incoming air compressor line Confirm incoming air pressure is 110 125 PSI ALWAYS ensure winch latch is engaged when raising lowering press bed Engaging latch prevents bed from accidentally dropping if winch handle is released which may result in crushing injury 4 Place table plates on press bed see Figure 12 and p...

Page 5: ...d sup port rods for cracks or damage Replace if necessary To clean maintain press 6 For precise application of ram force on work piece pump handle to increase pressure incrementally Refer to pressure gauge for actual workpiece pressure see Figure 14 Figure 14 Pump handle and pressure gauge Pressure Gauge Figure 13 Air valve components controls Air Valve Tab Air Line Air Valve Workpieces positioned...

Page 6: ... 36 62 63 64 65 66 40 T27978 Parts Breakdown 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 BUY PARTS ONLINE Scan QR code with your digital device or visit www grizzly com parts to purchase replacement p...

Page 7: ...M8 1 25 X 25 49 PT27978049 HYDRAULIC LINE 1 4 ID 300 PSI 40 L 16 PT27978016 FLAT WASHER 8MM 50 PT27978050 HEX BOLT M8 1 25 X 15 17 PT27978017 HEX BOLT M12 1 75 X 35 51 PT27978051 LOCK WASHER 8MM 18 PT27978018 HYDRAULIC RESERVOIR 52 PT27978052 HEX NUT M8 1 25 19 PT27978019 HANDLE 13 16 D X 26 3 8 L 53 PT27978053 AIR CYCLINDER 20 PT27978020 PRESS BED 54 PT27978054 PRESSURE GAUGE RING 21 PT27978021 P...

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