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

Identification

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. 

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.

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, 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.

Assembly

This machine and its 

components are very 

heavy. Reduce risk of 

strain or lifting injury 

by getting lifting help or 

using power lifting equip-

ment 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.

Figure 4. Supports and angle braces installed.

Angle 

Brace

Base 

Supports

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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