Clarke Strong-Arm CSA50FPB Instruction Manual

WARNING: Read these instructions before using the press
OPERATION & MAINTENANCE
INSTRUCTIONS
ORIGINAL INSTRUCTIONS GC0820 - ISS 1
50 TONNE HYDRAULIC PRESS
MODEL NO: CSA50FPB
PART NO: 7615203

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INTRODUCTION
Thank you for purchasing this CLARKE 50 Tonne Hydraulic Press.
Before attempting to operate the press, it is essential that you read this manual
thoroughly and carefully follow all instructions given. In doing so you will ensure
the safety of yourself and that of others around you, and you can also look
forward to the press giving you long and satisfactory service.
Ensure the press and its components suffered no damage during transit and
that all components are present. Should any loss or damage become
apparent, please contact your CLARKE dealer immediately.
OPERATING FEATURES

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TECHNICAL SPECIFICATIONS
SAFETY SYMBOLS
The following safety symbols appear on the product.
Rated Load 50 Tonne (50,000 kg)
Operating Pressure 64 Mpa (9200 psi)
Ram Travel 265 mm
Ram Shaft Diameter 63 mm
Net Weight 293 kg
Dimensions D x W x H 800 x 1300 x 1960 mm
Throat Width 710 mm
Throat Depth (Ram to pressing plate) Platform at highest;- 0 mm
Platform at lowest;- 950mm
No of bed positions 8 @ 140 mm centres
Ram travel per stroke 1.72 mm
No of strokes to full extension 78
Pressure Gauge type Accuracy class 2.5
Length of Handle 600 mm
Oil capacity 1.7 L
Oil type (VG15 grade hydraulic oil)
Read instruction
manual before use
Wear safety glasses
Wear Safety Shoes Hazard;-shattered
workpiece
Hazard:- crushed
hands
Wear protective gloves

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SAFETY PRECAUTIONS
1. Due to the weight of the press, lifting equipment and the help of an
assistant will be required during installation. Fix the press to the floor using
suitable anchor bolts.
2. Before starting work, check for signs of cracked welds, loose or missing
bolts, damaged screen, or any other damage. Do not use if any of these
conditions exist. Have repairs made only by authorised service centre.
3. Before work, always ensure that hydraulic hoses and couplings are
completely sound.
4. NEVER tamper with the press components or modify them. The safety valve
is set and sealed at the factory; do not attempt to adjust the setting.
5. Use only the recommended hydraulic oil.
6. The components of this press are designed to withstand the rated load. Do
not substitute any other components or exceed the rated load of the press.
7. Before applying pressure, ensure the workpiece is firmly secure and stable.
8. ALWAYS clean up spills of hydraulic oil immediately as this can be
dangerous in a workshop environment.
9. Do not let any person who is unfamiliar with hydraulic presses use the press
unless they are under direct supervision.
10. Keep children and unauthorised personnel away from the work area.
11. ALWAYS position the (optional) safety screen directly front of the workpiece.
12. ALWAYS apply the load under the centre of the ram. Offset loads can
damage the ram and may cause the work piece to be ejected.
13. ALWAYS ensure the work piece is properly supported by the press bed.
14. When using accessories such as pressing plates, be certain they are
centered below the ram and are in full contact with the bed.
15. Parts being pressed may shatter or be ejected from the press. Always use
adequate guards and wear eye protection and protective clothing when
using this press.
16. Keep hands and fingers away from parts that may pinch or shift.
17. NEVER use extension tubes to increase the length of the pump handle or
foot pedal. Excessive effort can cause damage and/or accidents.
18. Wear ANSI approved impact safety goggles heavy duty work gloves.
19. Failure to heed these warnings may result in damage to the equipment, or
serious personal injury.

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PREPARATION FOR USE
LOCATING THE PRESS
Using suitable lifting equipment if required, lift the frame assembly upright and
manoeuvre it to its intended location in the workshop.
The press must be firmly secured to a firm and level floor using expansion bolts
(not supplied). Holes are provided in the feet for this purpose.
Do not locate your press where it will be exposed to the elements as harsh
weather conditions will damage the hydraulic parts.
FITTING THE WINCH
During transit, the winch is positioned
at 180oto its working position inside
the frame and must be correctly
mounted.
1. Turn the winch and bracket
around and re-fit to the frame
with the bolts and washers
supplied, noting that the handle
will be outside the frame for
operation.
FITTING THE HANDWHEEL
The handwheel which is used to
position the ram within the frame is
supplied loose and requires fitting.
WARNING: DUE TO THE WEIGHT OF THE PRESS, LIFTING EQUIPMENT OR THE
HELP OF AN ASSISTANT WILL BE REQUIRED DURING INSTALLATION.

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1. Fit the thrust bearing to the end of
the axle.
2. Check that the direction of the
thrust bearing is with the silver
metal side facing outwards.
3. Fit the key into the slot in the shaft
and tap it into place.
4. Install the handwheel onto the
shaft, lining up the slot in the
wheel with the retaining key.
5. Secure the handwheel with the
spring washer, flat washer and
cross-headed screw supplied.
PROTECTIVE SCREEN (OPTIONAL)
A protective screen CPS50T is
available from your CLARKE dealer,
part no: 7615262.
1. Bolt the protective screen
brackets to the pressing bedplate.

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2. Fit the protective screen assembly
to the brackets and ensure it can
be set in one of the available
positions using the latches on
each side.
PURGING THE HYDRAULIC SYSTEM
1. Open the release valve by turning
anti-clockwise.
2. Pump the handle or foot pedal
several full strokes to eliminate any
air bubbles from the system.
3. Close the release valve, turning
clockwise.
POSITIONING THE PRESSING BED
1. Use the winch to raise the pressing
bed into a suitable position.
• The arrows on the winch
indicate the direction of
movement.
• The pressing bed should be as
close as possible to the ram
when the workpiece is
mounted on it.

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2. When satisfied that the bed is at
the correct height insert the
locking pins into their positions
and secure with the butterfly clips.
POSITIONING THE RAM
1. Position the carriage horizontally
along the cross-beam using the
adjusting handwheel on the side
of the press.
• Always position the ram
directly above the workpiece
which should be as close to
the centre of the press as
possible.
POSITIONING THE PRESSING BED BLOCKS
The bed blocks can be placed on
the bed with either the flat face or
the V-supports facing upwards.
They are prevented from slipping out
of position by the retaining pins which
drop down within the confines of the
bed side members.
Check all parts are secure and
correctly aligned before using the
press.

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OPERATION
1. Place the workpiece on the bed. It must be completely stable and
supported by packing or shims where required. Pressing plates (bed blocks)
are supplied, which locate on the bed. Place the workpiece on these to
give it stability.
NOTE: Any packing pieces or shims used MUST be capable of
withstanding the pressure that will be brought to bear, and MUST
be of sufficient size with sufficient surface area, so as to avoid the
possibility of slipping or springing out. Mating surfaces MUST be
horizontal so that the force being exerted will NOT be at an angle.
2. Close the release valve by turning
clockwise until tightly closed.
3. Select either SLOW SPEED or FAST
SPEED using the knob on the side
of the pump cover.
• Fast speed allows faster
movement but greater effort
will be required.
4. Pump the handle or foot pedal to
bring the ram very lightly into
contact with the workpiece.
5. Manoeuvre the workpiece or slide the ram to one side so that the desired
point of contact is directly beneath the centre of the ram.
6. When satisfied that the workpiece
is correctly aligned and is
completely stable in that position,
slide the protective screen (if
fitted) into position before starting
any pressing.
• The latches will support the
screen in a selection of
positions.
CAUTION: DO NOT POINT LOAD SUCH ACCESSORIES AS THEY ARE NOT
DESIGNED TO TAKE THE FULL FORCE OF THE RAM IN ONE SPOT. ENSURE
THEY ARE ADEQUATELY SUPPORTED.

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7. Slowly pump the handle or foot pedal so that the ram begins to exert
pressure on the workpiece.
8. Continue to pump the handle and constantly monitor the pressing,
ensuring the ram and work remain completely in line with no risk of slipping.
9. Observe the reading on the pressure gauge and take care not to exceed
the rated working pressure of the press.
• The scale from 50 metric tonnes upward is highlighted in red, indicating
pressure is being applied above the rated maximum working pressure.
10. When the pressing task is complete, turn the release valve control knob
anticlockwise in small increments to release ram pressure and allow
removal of the workpiece and lower the protective screen.