DAKE 6-250 Air-Operated Hydraulic Press Instruction Manual

DAKE 6-250 Air-Operated Hydraulic Press

Product Information

• The Dake Air-Operated Hydraulic Press is a powerful machine used for various industrial applications.
• It is available in two models: 6-250 and 6-450. Manufactured by Dake Corporation, this hydraulic press is designed to provide efficient and reliable performance.
• The press is equipped with air-operated hydraulic systems that allow for precise and controlled pressing operations. It features a sturdy construction with high-quality materials to ensure durability and long-term use. The press is designed to withstand heavy loads and provide consistent results.
• Dake Corporation offers a standard limited warranty for the press and its components. The finished machine is covered by a 1-year (12 months) warranty from the delivery date, while the component parts are covered for 30 days from the delivery date. The warranty includes free replacement or repair of defective parts within the specified warranty period.
• If any issues arise during the warranty period, customers can contact Dake Corporation through phone or email. They will need to provide the model number, serial number, and sales order number for efficient assistance.
• For returns and refunds, Dake offers a 30-day return option for all manufactured/distributed machines, parts, and couplings. To be eligible for a return, the item must be unused and in the same condition as received.

Product Usage Instructions

1. Read and understand all instructions and responsibilities before operating the Dake Air-Operated Hydraulic Press.
2. Ensure that you have received all the necessary components and parts as specified in the product package.
3. Place the hydraulic press in a suitable location with sufficient space for operation and maintenance.
4. Check the lubrication requirements of the press as specified in the user manual.
5. Connect the press to a suitable air supply using the provided connectors and hoses.
6. Ensure that all safety labels and instructions on the press are clearly visible and readable.
7. Before operating, inspect the press for any visible damage or loose parts. Do not operate if any issues are found; contact Dake Corporation for assistance.
8. Follow the specific instructions for each pressing operation, including load limits, pressing speed, and duration.
9. Monitor the press during operation and ensure that all safety precautions are followed at all times.
10. After each use, clean the press and perform any necessary maintenance as specified in the user manual.

Following these usage instructions will help ensure the safe and efficient operation of the Dake Air-Operated Hydraulic Press.

WARNING!

Read and understand all instructions and responsibilities before operating. Failure to follow safety instructions and labels could result in serious injury.

Warranty Exceptions:
The following conditions are not applicable to the standard limited warranty:

• (a) Part installation or machine service was not completed by a certified professional and is not in accordance with applicable local codes, ordinances and good trade practices.
• (b) Defects or malfunctions resulting from improper installation or failure to operate or maintain the unit in accordance with the printed instructions provided.
• (c) Defects or malfunctions resulting from abuse, accident, neglect, or damage outside of prepaid freight terms.
• (d) Normal maintenance service or preventative maintenance, and the parts used in connection with such service.
• (e) Units and parts that have been altered or repaired, other than by the manufacturer or as specifically authorized by the manufacturer.
• (f) Alterations made to the machine that were not previously approved by the manufacturer, or that are used for purposes other than the original design of the machine.

RETURN & REFUND POLICY

• Thank you for purchasing from Dake! If you are not entirely satisfied with your purchase, we are here to help.

Returns

• All Dake manufactured/distributed machines, parts and couplings include a 30-day return option. These policies are valid from the date of final shipment to the end user.
• To be eligible for a return, the item must be unused and in the same condition as received.
• All requested warranty claims must be communicated to the distributor or representative responsible for the sale. Once communication has been initiated, Dake Customer Service must be contacted for approval:
• Phone: 800-937-3253
• Email: customerservice@dakecorp.com
• Once the return request has been approved by Customer Service, a representative will supply a Return Material Authorization (RMA) number. The returned item must have the provided RMA number clearly marked on the outside packaging. Any item received without an RMA number clearly visible on the packaging will not be processed.
• An RMA number can only be provided by the Dake Customer Service team and must be obtained prior to the return shipment.

Refunds

• Once the item has been received and inspected for damages, a representative will notify the requestor referencing the provided RMA number.
• If the return is approved, a refund will be issued to the original method of payment, less a 20% restocking fee. The restocking fee may be waived if an order is placed at the time of return with like-value merchandise.
• Transportation costs are the responsibility of the end user and will not be credited upon return approval.
• Any item that is returned after the initial 30 days or has excessive/obvious use will not be considered for a full refund.

SAFEGUARDING THE POINT OF OPERATION

ANSI B11.2 – Hydraulic Power Presses Safety Requirements for Construction, Care, and Use

• It is important that Dake press users have a clear understanding of their responsibility involving the care and use of their Dake hydraulic press, including point-of-operation safe guards. Dake strongly recommends that Dake press users obtain a copy of the current American National Standard Institute (ANSI) B11.2 standard, for a more complete understanding of their responsibilities.

• ANSI B11.2 states the following, relative to point of operation safeguarding: Normally, only the employer (press user) can determine the requirements of the press productions system components, including the dies and methods for feeding. Therefore, the employer is ultimately responsible to designate and provide the point-of operation safeguarding system.”

• The standard also discusses additional responsibilities of the employer. Some of the key responsibilities are:

• The employer is responsible for the safety, use, and care of the hydraulic power press production system.

• The employer is responsible to consider the sources of hazards for all tasks to be implemented on the hydraulic power press production system.

• The employer is required to eliminate, or control identified hazards in the scope of their work activity.

• The employer is responsible for the training of personnel, caring for, inspecting, maintaining, and operating hydraulic press production systems to ensure their competence.

• The employer is responsible to provide and ensure that point-of-operation safeguarding is used, checked, maintained, and where applicable, adjusted on every production operation performed on a press production system.

• A complete and current copy of the ANSI B.11.2 standard can be obtained by contacting the following:

• American National Standards Institute
  1430 Broadway

• New York, NY 10018

• AMT – The Association for Manufacturing Technology 7901 Westpark Drive

• McLean, VA 22102

DAKE STANDARD TERMS & CONDITIONS OF SALE

• All proposals and quotations for the original sale of our products are subject to the following terms and conditions:

• ACCEPTANCE OF ORDER: All orders are subject to acceptance by Dake at its main office in Grand Haven, Michigan.

• APPLICABLE LAWS: This quotation or acceptance shall be governed in all respects by the laws of the State of Michigan.

• CANCELLATION: We reserve the right to cancel and/or refuse to complete your order if, in our opinion, you have not established credit to promptly meet the payment terms of your order. Any cancellation from the Purchaser may be subject to a 10% cancellation fee for any of our non-standard machinery upon the discretion of Dake. All custom or special quotes will not be eligible for cancellation, nor returns.

• DELIVERY: The proposed shipment date is an estimate and is contingent upon causes beyond Dake’s control. Under no circumstances shall Dake have any liability for loss of use or for any direct or consequential damages resulting from delay. All shipments from the Dake facilities are F.O.B.

• FREIGHT CLAIM: Damage freight claims must be submitted to Dake within thirty (30) days of shipment from Dake’s facility. If shipment for order was set up by the Purchaser, Dake is not liable to handle the freight claims.

• PERMITS AND COMPLIANCE: Dake shall not be responsible for obtaining any permits, inspections, certifications, or licenses required for the installation or use of the equipment. Dake makes no promise or representation that the equipment or any services to be furnished by Dake will conform to any federal, state, or local laws, ordinances, regulations, codes or standards.

• PRICES: Unless otherwise agreed to in writing, all prices are F.O.B. our plant in Grand Haven, Michigan and Grand Prairie, Texas. In any event, the quoted prices for component parts become invalid ten (10) days after date of quotation, and machinery may become invalid sixty (60) days after date of quotation. Unless otherwise specified in Dake’s quotation, installation services and final on-site adjustments are not included in the quotation.

• TAXES: Prices do not include taxes. If any sales, use or similar tax is payable to Dake in connection with any transaction or part thereof between the Purchaser and Dake with respect to goods delivered, the Purchaser will, upon demand, pay to Dake the amount of any such tax. If you are tax exempt, please include your exemption document when submitting your order.

• TERMS OF PAYMENT: Terms of payment are as stated in Dake’s quotation subject to credit approval by our home office. Dake will invoice Purchaser when the equipment is completed and ready for shipment. Payment terms run from invoice date. Purchaser may be required to issue a down payment before production of order and shipment, at the discretion of Dake Accounting. For credit card purchases, a 3.5% processing fee may be applicable to the order. The following states are exempt from the 3.5% processing fee: CA, CO, KS, OK, TX, FL, NY, CT, MA, and ME. Dake’s preferred method of payment is as follows: ACH Wire and credit card. Checks will be accepted but may cause delay in order processing. Below is our billing address:
  1809 Industrial Park Drive, Grand Haven, MI 49417

• WARRANTY If, within a period of one (1) year from date of shipment, any part of any equipment sold by Dake is defective in material or workmanship and is so found after inspection by Dake, it will be replaced or repaired at the option of Dake, providing the equipment has been given normal and proper usage and is still the property of the original Purchaser. Purchased components such as Micro Drop mist system or the like, installed as a part of Dake equipment are warranted only to the extent of the original Manufacturer’s warranty. Dake is not responsible for any service work performed unless authorized in advance.

• THE FOREGOING WARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES WHETHER WRITTEN, ORAL OR IMPLIED (INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR PARTICULAR PURPOSE). UNDER NO CIRCUMSTANCES SHALL DAKE BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES.

SPECIFICATIONS

| Model 6-250| Model 6-450
---|---|---
Number| 906250| 906450
Capacity| 50 tons| 50 tons
Width between uprights| 32-3/4”| 32-3/4”
Width between table channels| 7-1/4”| 7-1/4”
Minimum ram to table| 5”| 5”
Maximum ram to table| 40”| 40”
Ram travel| 10”| 10”
Horizontal work head travel| 13-1/4”| 13-3/4”
Height| 87”| 87”
Weight| 1,100 lbs| 1,150 lbs
Base| 43-1/2” x 36”| 43-1/2” x 36”
Ram advance speed| 65 pm| 55 pm
Pressing speed| 3 pm| 5 pm
Number or pumps| 1| 2
Air pressure| 90-125 psi| 90-125 psi

In the space provided record the serial number and model number of the machine. This information is only found on the black and gold Dake tag shown below. If contacting Dake this information must be provided to assist in identifying the specific machine.

Serial No.

Model No.
Install Date:

SAFETY

• This is the safety alert symbol. When you see this symbol on your press be alert to the potential for personal injury.
• Employer is responsible to perform a hazard/PPE assessment before work activity.
• Follow recommended precautions and safe operating practices.

Label Placement View

Additional Warnings

• Carefully read all safety messages in these instructions and on your press safety signs.
• Keep safety labels in good condition. Replace missing or damaged safety labels.
• Do not alter this press from its original state.
• Only use Dake’s original parts.
• This machine is intended to be operated by one person. This person should be conscious of the press ram movement not only for themselves but also for other persons in the immediate area.
• Tag-out procedures must be followed by authorized employees as per OSHA.

SET UP

• For shipping convenience some of the parts are not assembled. Assemble these parts in the following order:

1. Bolt the base angles to uprights using four provided bolts and nuts. Ensure that the base angles are against the stops on the uprights. The press should be set on a level floor with base angles touching the floor at all points, use shims when necessary.
2. Connect the airline to the street elbow (Item 136) at the right side of the control block. Avoid restrictions in the air supply line to ensure ampler air to the air motor. For maximum performance, the air supply line should be 1/2” pipe if the distance from the compressor to the press is 0-30 feet, 3/4” line for 30-60 feet, and 1” if the distance is greater than 60 feet.
   • WARNING: AIR MUST BE MOISTURE FREE. WATER IN THE AIRLINE COULD CORRODE THE PRESS BEYOND REPAIR.
3. Oil Requirements: Fill the reservoir with Mobil DTE 24 or equivalent oil through the pipeline in the back of the press at the pipe coupling by removing the pipe plug. Make sure the air source is removed from the reservoir prior to removing the plug. The oil level may be checked, with the ram up, by removing the pipe plug on the right side of the reservoir near the front. Replace the plug before operating the press.
   • Model 6-250 & 6-450, 50-ton presses use 8 quarts.
4. Attach nose piece to ram by inserting shank into ram and tightening the set screw.
5. Place the hoist crank on the lift drum shaft. Turn the hoist crank to relieve the pressure on the table pins. Keeping the tension on the hoist crank, remove the table pins one at a time.
   • a. After removing the table pins turn the crank running the table channels from top to bottom. Check to make sure the cable is tracking correctly. The cable should be on each of the two upper pulleys and should track back and forth on the cable drum.
   • Always place table pins under the table channels before releasing the hoist crank when positioning the table channels for cable tracking, servicing, or set-up for the desired work opening.
   • b. If a tracking problem exists contact Dake for instructions. Be sure all table pins are fully inserted in place before applying pressure. Always remove or release pressure on the cable before pressure is applied.

OPERATION

• WARNING DO NOT OVERSTROKE THE RAM. Overstocking will cause premature seal failure. Models 6-250 and 6-450 have a 10-inch stroke.
• The press has been completely tested at the factory and after setting up according to this manual the press is ready for operation. However, it is necessary for the operator to acquaint themselves with the controls.

1. Three screws are used to lock the workhead in the desired position along the head channels.
2. The hand-crank is to raise and lower the work table channels to the proper work height. When desired height is obtained insert the table pins. Models 6-250 and 6-450 use 2 pins on each side, 4 total. Be sure all table pins are in place and in as far as they can go before pressure is applied. Be sure to slack off the cable before pressure is applied. See step 5 of the “SET UP” in this manual.
3. The handle on the left side of the control block opens and closes the ball valve which releases the ram pressure. This valve should be kept firmly closed and opened only when it is desired to return the ram to its up position.
4. The two table plates and two V-blocks are used for supporting the work in process.
5. The control knob on the right side of the panel regulates the speed of ram travel. The knob will return to the off position when released.
6. The relief valve had been set at the factory to open at the maximum tonnage of the press. The valve can be adjusted by removing the hex nut located on the top of the valve block at the right front of the reservoir and turning the adjusting screw to the left for a lower setting.

WARNING: NEVER EXCEED THE RATED TONNAGE OF THE PRESS.

MAINTENANCE

Recommended to replace hydraulic oil every 6 months of machine use. See step 3 in “SET UP” section for instructions.

LUBRICATION

• Keep all working parts of the press well-oiled for easier operation.
• Keep a light film of oil over the entire surface of the ram to prevent rust.
• Regularly clean off work surfaces and the surrounding work area.

TROUBLESHOOTING

1. If the press loses pressure:
   • a. Check all tubing joints for leaks and tighten tube nuts.
   • b. Drain the reservoir and remove the packing nut, valve rod, and ball valve. Clean out the valve seat and reseat the ball valve using a brass rod as a drift, striking sharply with a hammer. Reassemble valve rod, packing, and packing nut. Refill reservoir with the appropriate oil amount.
   • c. Leakage past educator inlet check ball. Drain the reservoir, remove the large pipe plug, and valve seat, and check the ball. Clean and inspect the seat. Reset the ball on a seat or replace seat with new part if necessary. Reassemble with ball above the seat tightening plugs.
   • D. Worn leather cup or T-ring seal. If none of the previous conditions seem to have been the cause, the leather cup or T-ring may be worn or damaged. To inspect, drain the oil and remove the work head from the press frame. Remove tube assembly. Set two 4×4 blocks on the table then raise the table channels with the block up to the bottom of the reservoir applying pressure to the reservoir. Remove roller brackets from the reservoir and lower the work head using the table.
   • WARNING: Be sure the stroke indicator rod support is installed on the side of the piston. If not, insert a 1/2″-13 stud or cap screw into the tapped hole in the piston. This will hold the piston down under spring pressure.
   • e. Next remove nuts from the cylinder flange and lift the cylinder off the piston. The piston leather or T-ring seal can now be inspected and replaced if necessary. Press may be reassembled in reverse order being careful not to damage the lip of the leather cup or T-ring seal as it enters the cylinder.
   • Note: A leather cup will only be in presses made before 1992 or has a serial number before 192522.
2. The press will not develop rated tonnage.
   • a. Dirt under ball valves. Refer to 1 – c above.
   • b. Worn leather cup or T-ring seal. See 1 – d above.
   • c Relief valve is not set properly. This valve is located on the top side near the right end of the control block at the front of the reservoir. The valve is set at the factory to bypass oil from the pump back to the reservoir when the press reaches its rated capacity. The load on the spring, which governs the pressure at which the valve will bypass oil, is adjusted by turning the screw in to increase pressure or out to decrease pressure. Replace the seal and cap nut.
   • Note: We advise that the relief valve not be tampered with after it is set at the capacity of the press.
3. Nothing happens when the press is operated.
   • a. Release valve is open. Be sure the release valve is firmly closed when pressing.
   • b. If the ram will come down only a fraction of its rated stroke check the oil level in the reservoir with the ram at the top of its stroke. It should be visible in the sight window at the side of the reservoir.
4. The press is operating slowly.
   • a. Check the air supply line for restrictions to determine if air motors are getting an ample supply of air.
   • b. Release valve not closed properly. The release valve must be firmly closed when using the press.
   • c. Wrong hydraulic fluid. After considerable research and tests made with the cooperation of the pump manufacturer, it is recommended that Mobil DTE 24 oil or equivalent is used.
5. Oil is coming out of the air vent.
   • a. Drain out the spring chamber by removing the 1/8” pipe plug which is put in the hub or boss that contains the oil seal where the ram extends out of the reservoir. Once the oil is drained, run the press up to full tonnage with the pipe plug still removed.
   • Excessive oil is a sign that the head seal has been damaged. Refer to troubleshooting reference 1 – d. to replace the seal and then replace the pipe plug.
6. Excessive leakage around the ram.
   • a. Drain out the spring chamber as instructed above. A small amount of oil in this chamber facilitates lubricating the bushing the ram passes through and prevents scoring. However, if the operation performed on the press is spoiled due to the slight leakage of oil, remove the pipe plug as described above and connect the tube line to continually drain this chamber.

EXPLODED VIEW & PARTS LIST

–    Includes Crank

| 701677| 1
26| Hex Nut (3/8”-16)| 43912| 4
–| Workhead Assembly – Single Pump| 906251|
–| Workhead Assembly – Double Pump| 906451|

TABLE HOIST ASSEMBLY 701677

POWER UNIT ASSEMBLY

For presses with serial numbers lower than 192522 or made before 1992 refer to this exploded view and parts list for accurate part information. All other parts that are not listed below are the same for all the 50 ton Air Presses and can be found in this manual.

CONTROL BLOCK ASSEMBLY

Additional parts used with double pump presses not illustrated:

Please contact the factory for current prices.

ORDERING INFORMATION

• Parts are available for direct purchase from Dake or through a distributor. When placing a parts order, you will need to provide the part number, name of the part, and model number. All parts shipped to F.O.B. Factory in Grand Haven, MI.

DAKE STANDARD LIMITED WARRANTY

Finished Machines

• Dake warrants to the original purchaser the finished machine manufactured or distributed by it to be free from defects in material and workmanship under normal use and service within 1 year (12 months) from the delivery date to the end user.

Parts

• Dake warrants to the original purchaser that the component part manufactured or distributed by it to be free from defects in material and workmanship under normal use and service within 30 days from the delivery date to the end user.
• The standard limited warranty includes the replacement of the defective component part at no cost to the end user.

Sale of Service (Repairs)

• Dake warrants to the original purchaser that the component part repaired by Dake Corporation at the manufacturing facility to be free from defects in material and workmanship under normal use and service within 90 days from the return date to the end user, as it pertains to the repair work completed. The standard limited warranty includes repair of the defective component part, at no cost to the end user.

Warranty Process

• Subject to the conditions hereinafter set forth, the manufacturer will repair or replace any portion of the product that proves defective in materials or workmanship. The manufacturer retains the sole right and option, after inspection, to determine whether to repair or replace defective equipment, parts, or components. The manufacturer will assume ownership of any defective parts replaced under this warranty.
• All requested warranty claims must be communicated to the distributor or representative responsible for the sale. Once communication has been initiated, Dake Customer Service must be contacted for approval:
• Phone: 800-937-3253
• Email: customerservice@dakecorp.com
• When contacting Dake, please have the following information readily available:
• Model #
• Serial #
• Sales Order #
• Purchasers who notify Dake within the warranty period will be issued a Case number and/or a Return Material Authorization (RMA) number. If the item is to be returned per Dake’s request, the RMA number must be clearly written on the exterior packaging.
• Any item shipped to Dake without an RMA will not be processed.
• Dake Corporation 1809 Industrial Park Dr. Grand Haven, MI 49417 www.dakecorp.com

Documents / Resources

| DAKE 6-250 Air-Operated Hydraulic Press [pdf] Instruction Manual
6-250, 6-450, 6-250 Air-Operated Hydraulic Press, Air-Operated Hydraulic Press, Hydraulic Press, Press
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References

• Dake Corp | Metalworking Machine Tools
• Metalworking Machine Tools | Dake Corp

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