Introduction
Thank you for purchasing this CLARKE 20 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.
Product Specifications
Rated Load | 20 Tonnes |
Throat Width | 670 mm |
Throat Height (Ram to pressing plate) | 937 mm |
Platform at position 1 | 457 mm |
Platform at position 2 | 577 mm |
Platform at position 3 | 697 mm |
Platform at position 4 | 817 mm |
Ram Travel | 150 mm |
Ram travel per stroke | 0.8mm |
Number of strokes to full extension | 188 |
Length of handle | 500 mm |
Oil Capacity/grade | 0.51 L (HLP ISO32) |
Dimensions (D x W x H) | 540 x 640 x 1500 mm |
Weight | 85 kg |
Safety Symbols
The following safety symbols appear on the product:
- [Book Icon] Read instruction manual before use
- [Glasses Icon] Wear safety glasses
- [Safety Boot Icon] Wear Safety Shoes
Safety Precautions
WARNING: Read these instructions before using the press.
- Due to the weight of the press, the help of an assistant will be beneficial during assembly and installation.
- ALWAYS operate the press with adequate light.
- Before starting work, check for signs of cracked welds, loose or missing bolts, or any other structural damage. Do not operate if any of these conditions exist. Have repairs made only by an authorised service centre.
- NEVER tamper with any components. The safety valve is calibrated and sealed at the factory; do not attempt to change the setting.
- Use only the recommended hydraulic oil.
- The components of this press are designed to withstand the rated capacity. DO NOT substitute any other components or exceed the rated capacity of the press.
- Before applying pressure, ALWAYS ensure the workpiece is firmly secure and stable.
- ALWAYS clean up spills of hydraulic oil immediately as this can be dangerous in a workshop environment.
- DO NOT allow any person who is unfamiliar with hydraulic presses to use the press unless they are under direct supervision.
- DO NOT stand directly in front of the press when it is in use.
- 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.
- ALWAYS ensure the work piece is properly supported by the press bed.
- When using accessories such as pressing plates, be certain they are centered below the ram and are in full contact with the bed.
- Parts being pressed may shatter or be ejected from the press. In the case of varied applications, it is your responsibility to always use adequate guards, and wear eye protection and protective clothing when using this press.
- Keep hands and fingers away from parts that may pinch or shift.
- NEVER use extension tubes to increase the length of the pump handle. Excessive effort can cause damage and/or accidents.
- Failure to heed these warnings may result in damage to the equipment, or serious personal injury.
Unpacking
Ensure the press 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.
Diagram Description: An illustration shows all the individual parts of the hydraulic press laid out. Each part is assigned an ID number from 1 to 13.
ID | DESCRIPTION | QTY | ID | DESCRIPTION | QTY |
---|---|---|---|---|---|
1 | Foot | 2 | 9 | Bottle Jack | 1 |
2 | Bottom Cross Member | 1 | 10 | Spring | 2 |
3 | Side Support | 2 | 11 | Bottle Jack Handle | 1 |
4 | Foot Brace | 4 | 12 | Bed Supporting Pins | 2 |
5 | Pressing Bed | 2 | 13 | Fixings pack, containing bolts, nuts, washers and attachment hooks (itemised on page 13). | 1 |
6 | Cross Beam | 1 | |||
7 | Middle Bolster | 1 | |||
8 | Pressing Plate | 2 |
Assembly
The press must be firmly secured to a solid level floor such as concrete, using expansion bolts (not supplied). Holes are provided in the foot sections for this purpose. Do not locate your press where it will be open to the elements, as harsh weather conditions will damage the hydraulic parts.
Due to the weight of the components, CLARKE recommends that the press is assembled by two people.
- Attach the feet and the bottom cross member to the side supports, using the M12 nuts, bolts and washers.
Diagram Description: Shows feet, bottom cross member, and side supports being joined with M12 bolts.
- Add the foot braces to each side using the remaining M10 nuts, bolts and washers.
- Bolt the cross beam to the side supports, securing it with the M16 bolts, nuts and washers.
- Assemble loosely before tightening all fastenings.
- With the help of an assistant, manoeuvre the frame to its intended location in the workshop.
- Fix the 2x hooks to the moving cross beam using the nuts supplied. Take the two springs and hook them to their positions on the moving beam. Support the moving beam and attach the other end of the springs to the cross beam.
Diagram Description: Shows hooks being attached to the moving cross beam and springs being connected between the moving beam and the cross beam.
- Take the bottle jack unit, and by pressing down on the moving cross beam against the resistance of the springs, manoeuvre the jack so that the jack ram sits in the socket below the cross beam.
Diagram Description: Shows the bottle jack being positioned into its socket on the cross beam, with springs visible.
- Using the small hex bolt and nut, secure the jack to the beam.
- The jack will remain self-centred during use.
Diagram Description: Shows a hex bolt securing the bottle jack to the beam.
Bolt the two halves of the pressing bed together using the long bolts with nuts and spacer tubes supplied.
Diagram Description: Shows tie bolts, spacer tubes, and nuts/washers used to join the two halves of the pressing bed.
- Insert the bed support pins into the holes in the side support at a height of your choosing. Then lower the pressing bed onto the pins.
Diagram Description: Shows support pins inserted into side support holes, and the pressing bed being lowered onto the pins.
Preparation
- Before using the press, purge any air from the jack by using the crimped end of the handle to open the release valve (turning it anti-clockwise) and pumping the jack several full strokes to eliminate any air bubbles.
Diagram Description: Shows the release valve on the hydraulic jack, with an arrow indicating turning it anti-clockwise to open.
- Check all parts are secure and correctly aligned before using the press.
Positioning the Bed
Due to the weight of the bed, CLARKE recommends that you get assistance from another person when changing the bed height.
- Raise one side of the bed and insert a supporting pin into the next locating hole.
- Repeat at the other end to level the bed.
CAUTION: IT IS SAFER AND EASIER IF THE BED HEIGHT IS ONLY RAISED OR LOWERED ONE HOLE AT A TIME, WORKING ALTERNATELY FROM ONE SIDE AND THEN THE OTHER UNLESS AN ASSISTANT IS AVAILABLE TO SUPPORT THE WEIGHT OF THE BED WHILE THE PINS ARE INSERTED.
- Position the bed at the desired height, so that it will be as close as possible to the ram when the workpiece is mounted on it.
Operation
WARNING: FAILURE TO HEED THE WARNINGS ON PAGE 3 MAY RESULT IN DAMAGE TO THE EQUIPMENT OR COMPONENT FAILURE RESULTING IN PROPERTY DAMAGE, PERSONAL, OR EVEN INJURY.
NEVER USE EXTENSIONS TO THE RAM PUMPING HANDLE
- The press is now ready for use. Place the workpiece on the bed. It must be completely stable and supported by packing or shims where required. A pair of pressing plates are supplied, which lay flat on the bed. Place the workpiece on these to give it stability.
CAUTION: DO NOT POINT LOAD THESE ACCESSORIES AS THEY ARE NOT DESIGNED TO TAKE THE FULL FORCE OF THE RAM IN ONE SPOT. ENSURE THEY ARE ADEQUATELY SUPPORTED.
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.
- Using the crimped end of the handle, close the release valve by turning it clockwise until tightly closed.
Diagram Description: Shows the release valve on the hydraulic jack, with an arrow indicating turning it clockwise to close.
- Pump the handle to bring the ram very lightly into contact with the workpiece.
- Position the workpiece so that the desired point of contact is directly beneath the centre of the ram.
- When satisfied that the workpiece is correctly aligned and is completely stable in that position, slowly pump the handle so that the ram begins to exert pressure on the workpiece.
- Continue to pump the handle and constantly monitor the process, ensuring the ram and work remain completely in line and there is no risk of slipping.
- When the task is complete, turn the release valve anticlockwise in small increments to release ram pressure and allow removal of the workpiece.
Maintenance
Routinely
- A visual inspection must be made before use of the press, checking for leaking hydraulic fluid and damaged, loose, or missing parts.
- Owners and/or users should be aware that repair of this equipment requires specialised knowledge and facilities. It is recommended that a routine inspection of the press be made and any defective parts be replaced with genuine CLARKE parts.
- If the press appears to be damaged in any way, is found to be badly worn or operates abnormally, it SHOULD BE REMOVED FROM SERVICE until the necessary repairs are made.
- If the press is not to be used for any length of time, store it with the ram piston withdrawn to protect the moving parts.
Periodically
- Periodically check the press frame to make sure all bolts are tight and inspect for cracked welds, bent, loose or missing parts. If corrosion is found it should be removed completely and the paint restored.
- Check the hydraulic jack for leaks. Replace or properly repair any damaged or leaking hydraulic components before using. In the event of leaking seals, oil can be topped up via the plug on the jack. Oil should be level with the bottom of the hole. If necessary, top up with CLARKE hydraulic oil, Part No. 3050830. This task is carried out with the ram fully retracted.
- In the event of leakage, oil can be topped up by removing the filler plug on the reservoir and topping up level with the plug.
Disposal of Unwanted Materials
- One of the most damaging sources of environmental pollution is oil products. Never throw away used oil with domestic refuse or flush it down a sink or drain. Collect any oil in a leak proof container and take it to your local waste disposal site.
- Should hydraulic components become completely unserviceable and require disposal, draw off the oil into an approved container and dispose of the product and the oil according to local regulations.
Troubleshooting
Problem | Probable Cause | Remedy |
---|---|---|
Pump unit will not work | Dirt on valve seat/worn seals | Bleed pump or have unit overhauled with new seals |
Pump will not produce pressure | Air-lock | Open the release valve and remove the oil filler plug. Pump the handle a couple of full strokes and close the release valve. Replace the filler plug. |
Pump feels hesitant under load | Reservoir could be over-filled or have low oil level. | Check oil level by removing the filler plug & topping up if required. |
Pump will not deliver pressure | Pump cup seal could be worn out. | Have the cup seal replaced. |
Pump feels hesitant under load | Air-lock | Release air by removing the filler plug. |
Pump will not lower completely | Air-lock | Release air by removing the filler plug. |
Component Parts - Bottle Jack
Diagram Description: An exploded view diagram of the bottle jack, showing all its internal and external components, each labelled with an ID number.
ID | DESCRIPTION | ID | DESCRIPTION |
---|---|---|---|
1 | Circlip | 13 | Adjusting Screw Assembly |
2 | Rectangular Ring | 14 | Spring |
3 | O-Ring | 15 | Spring Holder |
4 | Piston Rod Assembly | 16 | Steel Ball Bearing, 3mm |
5 | Bowl Washer | 17 | Steel Ball Bearing, 5mm |
6 | O-Ring | 18 | Bowl Washer |
7 | Circlip | 19 | Pump Plunger Assembly |
8 | Main Base Unit | 20 | Cotter Pin |
9 | Oil Plug | 21 | Pin |
10 | Steel Ball Bearing, 6mm | 22 | Handle Socket Assembly |
11 | Release Value Assembly | 23 | Seal Kit |
12 | Plastic Plug |
Component Parts - Frame
Diagram Description: A detailed diagram of the hydraulic press frame, illustrating the assembly of various parts including the side columns, cross beams, pressing bed supports, and linkages. Each component is identified by an ID number.
ID | DESCRIPTION | QTY | ID | DESCRIPTION | QTY |
---|---|---|---|---|---|
1 | Bolt, M16 x 40 | 8 | 17 | Washer, 10 | 2 |
2 | Washer, 16 | 8 | 18 | Spring Washer, 10 | 2 |
3 | Nut, M16 | 8 | 19 | Nut, M10 | 2 |
4 | Spring Washer, 16 | 8 | 20 | Spacer Tube | 2 |
5 | Top Cross Beam | 1 | 21 | Side Column | 2 |
6 | Spring | 2 | 22 | Bed Support Pins | 2 |
7 | Bottle Jack | 1 | 23 | Bottom Cross Member | 1 |
8 | Hook | 2 | 24 | Nut, M12 | 4 |
9 | Moving Cross Beam | 1 | 25 | Spring Washer, 12 | 4 |
10 | Nut, M6 | 1 | 26 | Washer, 12 | 4 |
11 | Socket Screw, M6 x 20 | 1 | 27 | Foot Rail | 2 |
12 | Washer, 6 | 1 | 28 | Bolt, M10 x 25 | 8 |
13 | Spring Washer, 6 | 1 | 29 | Bolt, M12 x 30 | 4 |
14 | Pressing Plates | 2 | 30 | Foot Brace | 4 |
15 | Pressing Bed | 2 | 31 | Handle | 1 |
16 | Bolt, M10 x 130 | 2 | 32 | Handle Sleeve | 1 |
Guarantee
This CLARKE product is guaranteed against faulty manufacture for a period of 12 months from the date of purchase. Please keep your receipt as proof of purchase.
This guarantee is invalid if the product is found to have been abused or tampered with in any way, or not used for the purpose for which it was intended.
Faulty goods should be returned to their place of purchase; no product can be returned to CLARKE without prior permission.
This guarantee does not affect your statutory rights.
Declaration of Conformity - UK
Logos: [UKCA Logo]
Content:
CLARKE INTERNATIONAL, Hemnall Street, Epping, Essex CM16 4LG
DECLARATION OF CONFORMITY
This is an important document and should be retained.
CLARKE INTERNATIONAL hereby declares that this product(s) complies with the following statutory requirement(s): Supply of Machinery (Safety) Regulations 2008.
The following standards have been applied to the product(s): EN 1494:2000+A1:2008, EN ISO 12100:2010.
The technical documentation required to demonstrate that the product(s) meet(s) the requirement(s) of the aforementioned legislation has been compiled and is available for inspection by the relevant enforcement authorities.
The UKCA mark was first applied in: 2022
Product Description: 20 Tonne Economy Shop Press
Model number(s): CSA20EP
Serial/batch Number: N/A
Date of Issue: 19/07/2022
Signed: J.A. Clarke, Director
Declaration of Conformity - EU
Logos: [CE Logo]
Content:
CLARKE INTERNATIONAL, Fitzwilliam Hall, Fitzwilliam Place, Dublin 2
DECLARATION OF CONFORMITY
This is an important document and should be retained.
CLARKE INTERNATIONAL hereby declares that this product(s) complies with the following directive(s): 2006/42/EC Machinery Directive.
The following standards have been applied to the product(s): EN 1494:2000+A1:2008, EN ISO 12100:2010.
The technical documentation required to demonstrate that the product(s) meet(s) the requirement(s) of the aforementioned directive(s) has been compiled and is available for inspection by the relevant enforcement authorities.
The CE mark was first applied in: 2022
Product Description: 20 Tonne Economy Shop Press
Model number(s): CSA20EP
Serial/batch Number: N/A
Date of Issue: 19/07/2022
Signed: J.A. Clarke, Director