Dake Elecdraulic - 905 User Manual

INSTRUCTIONS AND PARTS LIST FOR

Models 5-025, 5-050, 5-075, and 5-150

Elec-Draulic I Presses

WARNING LABELS

To the left is the safety Alert symbol. When you see these safety alert symbols on your press,

be alert to the potential for personal injury.

Follow recommended precautions and safe operating practices.

SETTING UP THE PRESS FOR OPERATION

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 bolts and nuts, which are provided. Make sure base angles are against stops on uprights.

NOTE: The press should set on a level floor with the base angles touching the floor at all points. Use shims where necessary.

2. Motor starter box is mounted on left upright. Have electrician connect power to motor starter. Pump can rotate in either direction.

3. Oil Requirements: Fill reservoir thru street elbow at back of press with Mobil DTE oil No. 24 or equivalent. NOTE: Oil level may be checked (with ram up) by removing the 1/8” NPT pipe plug on the right side of reservoir near the front. Replace plug before operating the press.

Model 5-025 uses 6 quarts

Model 5-050 uses 8 quarts Model 5-075 uses 10 quarts Model 5-150 uses 20 quarts

4. Prime pump by removing the plug in the top of the pump opposite the intake line and allow the oil levels in the reservoir and pump to equalize. Fill pump with additional oil (if required), replace plug making sure seal is tight, and start motor.

5. Attach nose piece to ram by inserting shank into ram and tightening the set screw.

CAUTION! Place the hoist crank on the lift drum shaft. Turn the hoist crank to relieve the pressure on the table pins. Keeping tension on the hoist crank, remove the table pins one at a time. After removing the tables 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 desired work opening. If a tracking problem exists, contact the Dake factory 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.

OPERATIONS

WARNING: DO NOT OVERSTROKE THE RAM. Overstroking will cause premature seal failure.

Models 5-025, 5-050, & 5-075 have a 10-inch stroke. Model 5-150 has a 16-inch stroke.

The press has been completely tested at the factory and after setting up according to instructions above, the press is ready for operation. However, it is necessary for the operator to acquaint themselves with the controls.

1. Three screws (item 100) are used to lock the workhead in the desired position along head channels.

2. The handcrank (item 19) is provided to raise or lower the table channels to the proper work height. When desired height is obtained insert the table pins. Models 5-025 and 5-050 use 2 pins on each side (4 total) and Models 5-075 and 5-150 use 3 pins on each side (6 total).

Model 5-025, 5-050, 5-075 & 5-150

3. The handle on the left side of the workhead (item 67) opens and closes the ball valve, which

4. The two table plates (items 6) and two V-blocks (item 7) are used for supporting the work in

5. The control handle (items 86 & 91) on the right side of the panel regulates the speed of ram travel.

6. The relief valve (item 79) has been set at factory to open at maximum tonnage of press. The valve

MAINTENANCE

CAUTION: When disconnecting any parts of this machine be extremely careful that all parts are

clean to prevent entrance of dirt in the hydraulic system.

1. If press looses pressure:

CAUTION: Be sure ALL table pins are in place an in as far as they can go before

pressure is applied. Be sure to slack off on the cable before pressure is applied.

releases pressure on the ram. This valve should be kept firmly closed and open only when it is desired to return the ram to its up position.

process.

The handle will return to the off position when released. It is not necessary to stop motor after each operation.

can be adjusted by removing hex nut located on top of the valve block at the right front of reservoir and turning the adjusting screw to the left for a lower setting.

WARNING: Never exceed rated tonnage of press

a. Check all tubing joints for leaks and tighten the tube nuts. b. Leakage past release valve (Item 67). Drain the reservoir, and remove packing nut (Item 75),

valve rod (Item No 64), and ball valve (Item No 63). Clean out valve seat and reseat ball valve using brass rod as a drift striking sharply with a hammer. Reassemble valve rod, packing and packing nut. Refill reservoir with appropriate oil amount.

c. Leakage past eductor inlet check ball (Item No. 60). Drain reservoir, remove large pipe plug

(Item No. 62), valve seat (Item No. 61), and check ball (Item No. 60). Clean and inspect seat. Reseat ball on seat or replace seat with a new one if necessary. Reassemble with ball above the seat tightening plugs securely.

d. Worn cup leather (Serial No < 192522) or T-ring seal (Serial No > 192523). If none of the

previous conditions seem to have been the cause of the trouble, the cup leather or T-ring seal may be worn out or damaged. To inspect this it is necessary to drain the oil and remove the workhead from the press frame. Remove tube assembly (Item No. 123). Set 2 4x4 blocks on the table then raise 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 workhead using the table.

hold the piston down under spring pressure. Next remove nuts from cylinder flange and lift cylinder off 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.

2. If press will not develop rated tonnage. a. Dirt under valve balls. Refer to MAINTENANCE 1 – c above. b. Worn cup leather. Refer to MAINTENANCE 1 – d above. c. Relief valve not set properly. This valve is located on the top side near the right end of the

Model 5-025, 5-050, 5-075 & 5-150

WARNING: Be sure that stroke indicator rod support (item 52) is installed in the side

of the piston. If not, Insert ½”-13 stud or capscrew in tapped hole in piston. This will

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 (Item 75), which governs the pressure at which the valve will bypass oil, is adjusted by turning the screw (Item 79) in to increase pressure or out to decrease pressure. Replace seal (Item

74) and cap nut (Item 78). NOTE: We advise that the relief valve not be tampered with after it is set at the capacity of the press.

3. If nothing happens when press is operated. a. If motor does not run, the electrical circuit should be investigated. b. Release valve open. Be sure to have release valve firmly closed when using press. c. 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.

d. Eductor nozzle plugged. If motor labors and ram does not move when pump control know is

turned, the orifice in the eductor nozzle (item 73) may be plugged. Drain reservoir, remove tube assembly (Item 123), eductor bushing (item 70), eductor body (item 72), and eductor nozzle (Item 73). Clean out orifice with a 1/32” drill. Replace parts being sure not to install item 72 backwards. See parts drawing. Check O-ring and back-up washer (items 71A &71B) to be sure it has not been damaged.

4. If press is operating slow. a. Improper oil. It is essential that the recommended oil (Mobil DTE 24 or equivalent) be used.

Heavier oils cause a marked reduction in the ram speed. NOTE: DO NOT USE HYDRAULIC

JACK OIL!

b. Release valve not closed properly. Release valve must be firmly closed when using the press. c. The seal on the piston rod for the 50-101 pump is worn. A worn seal will pull air into the pump

causing the pump to slowly loose its prime. To test, place grease around the control rod where it goes in and out of the seal (Item 129). Then replace seal part number 26573.

d. The piston rod for the 50-101 pump is bent or rusted. Contact factory for rebuilding your pump.

CAUTION: Adjustments to pump are not necessary and the pump should not be tampered with

because expensive repairs may result.

WARNING! High pressure fluid is present in operational hydraulic systems. Fluids under high

pressure are dangerous and can cause serious injury or death. Do not make modifications, repairs or adjustments to any hydraulic system unless you are competent or working under competent supervision. If in doubt, consult a qualified technician or engineer.

Model 5-025, 5-050, 5-075 & 5-150

Label 300168

Label 84487

Label 84395

Label 76462

Label 7355

WARNING LABELS

To the left is the safety Alert symbol. When you see these safety alert symbols on your press,

be alert to the potential for personal injury.

Follow recommended precautions and safe operating practices. 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. This machine is intended to be operated by one person. This person should be conscious of the press ram movement not only for

himself but also for persons in the immediate area of the machine.

Label Placement View

Model 5-025, 5-050, 5-075 & 5-150

Electrical Diagram

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