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INSTRUCTIONS AND PARTS
LIST FOR MODEL 25H
HAND-OPERATED HYDRAULIC
PRESS
SETTING UP THE PRESS FOR OPERATION
For shipping convenience, the gauge, pump handle, hoist crank, screw nose and base angles
were removed from the press. Assemble these parts to the press in the following order:
1. Bolt the base angles to the uprights using the four bolts and nuts furnished. Shoulder the
base angles against the stops on the uprights.
2. Install the pressure gauge using a hydraulic sealant to ensure a sealed fit.
3. Insert pump handle into handle socket and fasten in place by means of the setscrew on
top of the handle socket.
4. CAUTION! Place the hoist crank on the lift drum shaft. The table is raised to the
desired height by turning the crank after removing the table pins. Check to make
sure the hoist cable is tracking correctly. Run the table channels from top to
bottom. 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.
5. Fasten nosepiece to the end of the screw using the thumbscrew included.
OPERATIONS AND CONTROLS
The operator should acquaint himself with the use of the following controls:
1. The pump handle is the pressure supply source and is manually operated with an up and
down motion.
2. Item number 7 (part no.10631) is the release valve handwheel. Always keep it firmly
closed when operating the press and it should only be opened when releasing the
pressure to allow the ram to return.
3. By turning Item 33 (Part No. 716518), the ram screw can be adjusted into or out of the
piston assembly. Always keep the portion of the screw extending out of the piston as
short as possible. It is advisable to raise the table one or two sets of holes rather than
running the screw out to its limit of travel. NEVER EXCEED THE RECOMMENDED
STROKE OF 5 INCHES FOR THIS PRESS. EXCEEDING THE STROKE WILL CAUSE
DAMAGE TO THE INNER PACKINGS.
4. The two combination table plates-v blocks provided are used for supporting the work
while it is being straightened.
FILLING THE PRESS WITH OIL
It is extremely important that new, clean, light hydraulic oil be used in this press, Mobil DTE 24
or an equivalent. It is strongly recommended that the oil be filtered to remove any possible
dirt. The piston should be in its maximum upper position when filling the reservoir. Fill the
reservoir with 2 ½ quarts of oil. UNDER NO CIRCUMSTANCES USE OLD DIRTY OIL. Next
remove the screw plug from the top of the cylinder and fill with oil. Close the release valve
handwheel and pump oil into the workhead until oil is visible in the top of the cylinder. This will
remove all air from the chamber above the piston. Then install the gauge. If oil leaks by the
piston. The reservoir should be drained and refilled (2 ½ quarts of oil) with the piston in the top
position.
25H Press
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ORDERING INFORMATION
Label 300168
Label 84487
Label 6767
Label 607
Please order all parts by number and name. Also mention model number and serial number
as shown on the plate attached to the frame of the press. Prices for parts do not include
shipping charges.
LUBRICATION
Keep all working parts of the press well oiled for easier operation. Also keep a light film of oil
over the entire surface of the ram to prevent rust.
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
25H Press
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TROUBLE SHOOTING – DAKE HAND HYDRAULIC PRESSES
PUMP PACKING LEAKAGE
If oil leaks past the pump packing, tighten the pump packing nut (551) until pump handle works
hard, then slack off just enough to cause the handle to stay in position by itself. After long
periods of operation, it may be necessary to install new pump packings.
IF PRESS DOES NOT HOLD PRESSURE
This condition is nearly always caused by dirt under pressure ball valve part number (586).
See workhead assembly drawing. To remedy this condition, first remove the reservoir drain
plug and drain off all the oil in the reservoir. Next, remove parts, 3/8” pipe plug (588), check
valve spring (579) and valve ball (586) then clean out port hole and valve seat thoroughly.
Replace and using a small piece of brass rod as a drift, tap the brass rod lightly to seat the ball
properly. Replace spring and plug using extreme care to prevent dirt from entering. Replace
the drain plug and refill the reservoir with clean filtered oil.
If above procedure does not correct the condition, air may be present in the chamber above
the piston and should be removed as directed in Filling Press with Oil paragraph III.
SYMPTOM CAUSE SOLUTION
Oil leaking from
piston oil seal.
Press will not hold
pressure.
Press will not build
rated tonnage.
Oil leaking from
pump plunger
Oil leaking from
release valve rod
Pump handle drifts
up.
Ram will not return. Return Spring damaged.
* Note: If press leaks around the ram but holds pressure the reservoir has been overfilled.
1) Reservoir is over filled. *
2) Piston Packing is worn or damaged.
1) Check Ball is contaminated.
2) Ball and Seat have poor contact.
3) Piston Packing is worn or damaged.
1) Pump Plunger Leather is worn or
damaged.
2) See 1,2,3 Above.
3) Gauge is defective.
1) Packing Nut Loose.
2) Worn Packings.
1) Valve Rod Packing Nut is Loose
2) Packings are worn.
Defective Check Ball or Check Ball
Spring.
Piston is bent or damaged.
Piston Packing is defective.
1) Drain excess oil.
1) Remove and clean Check
Balls and Seats.
2) Reseat Ball on Seat.
3) Replace Piston Packing.
1) Replace Pump Plunger
leather.
2) See 1,2,3 Above.
3) Replace Gauge.
1) Tighten Packing Nut.
2) Replace packings.
1) Tighten Packing Nut.
2) Replace Packings.
Clean Check Ball, Reseat.
Replace Spring.
Replace Spring.
Replace Piston.
Replace Piston Packing.
724 Robbins Road
Grand Haven, MI 49417
Phone: 616-842-7110 800-937-3253
Fax: 616-842-0859 800-846-3253
Web: www.dakecorp.com
E-mail: customerservice@dakecorp.com
technicalservice@dakecorp.com
25H Press
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HANDPUMP ASSEMBLY
Item Qty Description
1 1 Pump Body 546
2 3 Ball valve ½” Dia. 586
3 1 ¼“-20 x ½“ Nylock Hex Cap Screw 28297
4 1 Washer #12 Flat 43629
5 1 Pump Plunger Leather 599
6 1 Check Valve Spring 579
7 1 Fitting, Tube, Poly-Tite 71413
8 7 Pump Packing 573
9 1 Pump Packing Nut 551
10 1 Handle Socket 550
11 1 Handle Socket Link 555
12 6 3/8” Retaining Rings 43972
13 1 Pump Plunger 554
14 3 Handle Socket Pin 594
15 1 Valve Rod 1129
16 1 Valve Rod Packing Nut 576
17 8 Valve Rod Packing 987
18 1 3/8” Pipe Plug 588
19 1 3/8”-16 x 5/8” Set Screw 43589
20 1 Pump Gasket 591
Hand Pump Assembly Complete 700887
Repair Kit – Cylinder & Hand Pump Assembly
(Includes items – 5,8,17,20,21,23,30,31)
Part
No.
701290
25H Press
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WORKHEAD ASSEMBLY
Item Qty Description
21 1 Cylinder Gasket 998
22 1 Cylinder 960
23 1 Packing Ring (Serial No. > 192522) 17976
1 Piston Leather (Serial No. < 192523)
(Used with supporting ring no. 967)
24 & 25 1 Piston Assembly (Serial No. < 192522) 701800
1 Piston Assembly (Serial No. > 192523) 716221
26 1 Ram Spring 968
27 1 1/2” Pipe Plug 596
28 1 1/2” Street Elbow 590
29 1 1/8” Pipe Plug 589
30 1 Oil Seal 999
31 1 Piston Bumper 996
32 2 Clamp Ring 982M
33 1 Screw Adjusting Wheel 716518
34 1 Screw 971
35
36
1 Screw Nose
*Thumb screw if needed 43618
1
Reservoir 963
Repair Kit – Cylinder & Hand Pump Assembly
(Includes – Items 5,8,17,20,21,23,30,31)
Part
No.
969
986
701290
25H Press
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TABLE HOIST
FRAME ASSEMBLY
Item Qty Description
57
58
1 Hand Crank
Assembly
59 1 Worm Shaft 384
60 2 Retaining Ring 27437
61 1 Worm Key 47364
62 1 Worm 385
63 1 Hoist Frame 725
64 1 Hex Cap Screw 43335
65 1 Hex Nut 43912
66 1 Drum Shaft 724
67 1 Drum Key 737
68 1 Worm Gear 736
69 1 Cable Drum 723
70 Retaining Ring 43992
Complete Table Hoist Assembly 700112-S
Part
No.
1000
Item Qty Description
37
1 1 Gauge
Bushing
38 1 ½” Tube Elbow 1252
39 1 Name Plate 81002
40 1 Air Vent Tube 632
41 1 Hand Wheel 10631
42 2 Table Plates 966
43 4 Table Pins 981
44 2 Table Channel 701020
45 1 Frame 700134
46 2 Base Angles 978
47 2 Tube Fittings 1251
48 1 Tube Assembly 700133
49 1 Handle 218
50 2 Pulley 602
2 Pulley bolt 43341
2 Pulley lock washer 43645
2 Pulley nut 43912
51 9” Tube, ¼” Plastic 67761
52 2 Fitting, Tube, Poly-Tite 71413
53 2 Spacer 997
54 1 Cable 988
55 4 Cable Clamps 991
4 Table Spacer Assembly
56
one each of washer,
bolt, spacer per part #
N/A 4 Channel Washers 25H138P
N/A 4 Wkhd mounting bolts 43348
Part
No.
71265
81384
716691
25H Press
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