Grizzly T27978 Instructions Manual

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MODEL T27978

50-TON HYDRAULIC PRESS

INSTRUCTIONS

For questions or help with this product contact Tech Support at (570) 546-9663 or techsupport@grizzly.com

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

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

Figure 2. Inventory items.

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Identification

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.

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.

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)

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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 .................

⁄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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Operating Press

1. Rotate tank relief valve (see Figure 8) fully

clockwise to close it. Ensure top relief valve is open 1–2 turns.

Tank Relief Valve

Top Relief Valve

Figure 8. Hydraulic system relief valve locations.

Support Rod

(1 of 2)

Figure 10. Support rod placement.

3. Connect air valve to incoming air compressor

line. Confirm incoming air pressure is 110– 125 PSI.

Incoming

Air Line

2. Engage latch on winch (see Figure 9), and raise press bed to desired height, insert support rods (see Figure 10) into holes in machine frame closest to bed, then lower bed onto support rods.

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.

Disengaged

Engaged

Air

Valve

Figure 11. Air valve movement.

4. Place table plates on press bed (see Figure

12), and place workpiece on table plates.

Press

Bed

Ram

Table

Plates

Figure 12. Table plates positioned on press bed

beneath ram.

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Latch

Figure 9. Winch latch positions.

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

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5. Lower ram by pressing and holding air valve

tab (see Figure 13). Ram should lower smoothly.

7. Rotate tank relief valve (see Figure 15) coun- terclockwise to release pressure on ram, then remove workpiece.

Tank Relief Valve

Figure 15. Rotating tank relief valve.

Air

Line

Figure 13. Air valve components/controls.

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).

Air

Valve

Tab

Air

Valve

Maintenance

The T27978 50-Ton Press features a fully-sealed hydraulic unit and air cylinder. Periodically check press for loose mounting bolts or any unsafe conditions. Thoroughly clean press components on an as-needed 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.

3. Check hydraulic ram and press bed sup-

port rods for cracks or damage. Replace if necessary.

Pressure Gauge

Figure 14. Pump handle and pressure gauge.

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

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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.

PARTS STORE

BUY PARTS ONLINE!

Scan QR code with your digital device or visit www.grizzly.com/parts to purchase replacement parts or check pricing and availability.

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

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Main Parts List

REF PART # DESCRIPTION REF PART # DESCRIPTION

1 PT27978001 HEX BOLT M22-2.5 X 50 35 PT27978035 CABLE BLOCK 2 PT27978002 CROSS BEAM 36 PT27978036 HEX NUT M10-1.5 3 PT27978003 HEX NUT M14-2 37 PT27978037 LOCK WASHER 10MM 4 PT27978004 LOCK WASHER 14MM 38 PT27978038 FLAT WASHER 10MM 5 PT27978005 FLAT WASHER 22MM 39 PT27978039 CABLE PULLEY (LOWER) 6 PT27978006 HEX NUT M22-2.5 40 PT27978040 EXT RETAINING RING 20MM 7 PT27978007 COLUMN 41 PT27978041 HEX NUT M14-2 8 PT27978008 PRESS BED SUPPORT ROD 42 PT27978042 KNURLED KNOB M10-1.5 X 38L X 40D 9 PT27978009 ANGLE SUPPORT BAR 43 PT27978043 AIR HOSE 1/4" ID 300-PSI 48"L 10 PT27978010 FLAT WASHER 12MM 44 PT27978044 PNEUMATIC HAND VALVE 1/4" NPT 11 PT27978011 HEX BOLT M10-1.5 X 25 45 PT27978045 EXTENSION SPRING 1-3/4" X 11" X 1/4" 12 PT27978012 BASE SUPPORT 46 PT27978046 EXTENSION SPRING PLATE 13 PT27978013 HEX NUT M12-1.75 47 PT27978047 OVERFLOW HOSE 5/16" OD X 27"L 14 PT27978014 CROSS SUPPORT 48 PT27978048 HYDRAULIC LINE 1/4" ID 300-PSI 30"L 15 PT27978015 HEX BOLT 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 PRESS BLOCKS 55 PT27978055 PHLP HD SCR M6-1 X 8 22 PT27978022 PRESSURE GAUGE 56 PT27978056 AIR LINE LOCK FITTING M10-1.5 23 PT27978023 HYDRAULIC RAM 57 PT27978057 90-DEG ELBOW FITTING 3/8" BRASS 24 PT27978024 HEX BOLT M14-2 X 65 58 PT27978058 STRAIGHT FITTING 3/8" BRASS 25 PT27978025 FLAT WASHER 14MM 59 PT27978059 90-DEGREE BLOCK FITTING 1/2" 26 PT27978026 WINCH 1000LB. 60 PT27978060 LOWER PULLEY SHAFT M12-1.75 X 25 SE 27 PT27978027 WINCH BRACKET 61 PT27978061 LOCK WASHER 12MM 29 PT27978029 HEX BOLT M10-1.5 X 35 62 PT27978062 GRIZZLY.COM LABEL 30 PT27978030 STEEL WINCH CABLE 5MM 63 PT27978063 MACHINE ID LABEL 32 PT27978032 PULLEY SHAFT M14-1.75, 20 X 210 DE 64 PT27978064 READ MANUAL LABEL 33 PT27978033 CABLE PULLEY (UPPER) 65 PT27978065 SAFETY GLASSES LABEL 34 PT27978034 FLAT WASHER 14MM 66 PT27978066 AIR DISCONNECT WARNING LABEL

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

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