Trick-tools Hougen-Ogura PUNCH PRO 75004PR User manual

ELECTRO-HYDRAULIC HOLE PUNCHER
operator’s manual
COVERS HOLE PUNCHER PART NUMBERS 0754102 & 0754202
75004PR PUNCH PRO™
OM75004PR0815 Printed in U.S.A.

2
CAUTION! To prevent electric
shock, do not use power tools
near wet areas, or where power
tool may become wet.
Always wear eye protection while
using punching tools, or in the
vicinity of punching.
CAUTION! The slug is ejected
at the end of the punch. Do not
aim the unit so that ejected slug
may hit someone around, or
below you.
CAUTION! Risk of pinching
or crushing. Keep away from
moving parts when unit is in use.
Electro-Hydraulic Hole Punch
Models 0754102 & 0754202
Operating Procedures 9
Maintenance 10
Parts Breakdown 12
Parts List 14
Punch & Die Chart 14
Troubleshooting 15
Commercial Warranty & Repair Center 16
Congratulations on your purchase of the Hougen®-Ogura™ Electro-Hydraulic Hole Puncher. Your model is
designed to produce superior holes quickly and efciently. Through constant innovation and development,
Hougen is committed to provide you with hole producing tools and products to help you be more productive.
Before attempting to operate your new hole puncher, please read all instructions rst. These include the
Operator’s Manual and Warning Label on the unit itself. With proper use, care, and maintenance,
your model will provide you with years of effective hole punching performance.
Once again, thank you for selecting our product and welcome to Hougen®-Ogura™
Welcome to Hougen-Ogura 2
Safety Instructions 3
Principals of Operation 4-5
Removing & Installing Round Punches 6
Removing & Installing Oblong Punches 7
Selecting Proper Dies 8
Specifications
Motor 1050W Single Phase, 115V/230V, 50-60 Hz AC
Weight 24.9 lbs (11.3 kg)
Dimensions 20-3/4" L x 5" W x 12-1/2" H (529mm L x 127mm W x 315mm H)
Max.
Throat Depth 1-9/16" (40mm)
Max.
Hole Size 25/32" (20mm) Dia. thru 3/8" (.375mm) mild steel
SAFETY FIRST
INDEX

3
Important Safety Instructions
WarnInG
1. Before use, read this Instruction Manual thoroughly.
Do not expose the charger and battery to rain or use
them in damp or wet locations, as this may cause
overheating or electric shock.
2. Keep work area clean.
Cluttered areas and benches invite injuries.
3. Keep the work area well lighted.
Working where there is insufcient light may cause
an accident
4. Keep children away.
Do not allow children or unauthorized personnel to
handle tool.
5. Store idle tools.
When not in use, tools should be stored in a dry and
secure place. Keep out of reach of children.
6. Do not force tool.
It will do the job better and safer at the rate for which
it was intended. Do not force tool to work beyond its
ability. Excessive load will cause seizure of the motor,
overheating, smoke and re.
7. Use right tool.
Do not force small tool or attachment to do the job of
a heavy-duty tool.
8. Wear safety glasses and protective clothing.
Always wear safety glasses, safety footwear, safety
gloves, and any other mandated or necessary protective
clothing while using this equipment. Failure to do so may
result in injury.
9. Dress properly.
Do not wear loose clothing or jewelry as they can be
caught in moving parts. Rubber gloves and non-skid
footwear are recommended when working outdoors.
Wear protective hair covering to contain long hair.
10. Hold tool securely.
A tool that is not held securely may injure you. Use
clamps or a vice to hold the work. This frees both
hands to properly hold, control, and operate the tool.
Failure to properly secure the work may result in injury.
11. Disconnect the tools power supply, by removing
the battery and engaging the Trigger Switch Lock,
whenever one of the following situations occur:
The tool is not in use or is being serviced, any parts
such as a blade, are being replaced. There is a
recognized hazard. Failure to do so may result in
unexpected operation and damage or injury.
12. Avoid unexpected operation.
Do not carry the tool by the Trigger Switch as this may
cause unexpected operation and damage or injury.
13. Do not abuse power cord.
Never carry battery charger by its power cord or pull
on the cord to disconnect it. Keep cord away from heat,
oil and sharp objects. Place cord so that it will not be
stepped on, tripped over, or otherwise subjected to
damage or stress. If the tool is dropped or struck,
check carefully that the body is not damaged, cracked,
or deformed.
14. Do not overreach.
Keep proper footing and balance at all times.
15. Maintain tools carefully.
Keep tools sharp and clean for better and safer
performance. Follow instructions for lubricating and
changing accessories. Inspect battery charger power
cord periodically and, if damaged, have it repaired
by Hougen Manufacturing, Inc. Keep handles dry,
clean, and free from oil and grease.
16. Remove keys and wrenches.
Form habit of checking to see that keys and wrenches
are removed from tool before starting operation.
17. Stay alert when using electric tools.
• Consider safety of others.
• Operate tool with care.
• Watch what you are doing.
• Use common sense.
• Do not operate tool when you are tired.
18. Check for damaged parts.
• Before using the tool, carefully check all parts for
damage, including guards, to ensure that they will
operate properly and perform their intended function.
• Check for any misalignment or binding of moving
parts; damaged or broken parts and mountings; and
any other conditions that may affect its operation.
• Do not use battery charger if electric plug or cord is
damaged or if it was dropped or damaged in any way.
• A guard or other part that is damaged should be
properly repaired or replaced by an authorized
service center unless otherwise indicated in this
instruction manual.
• Do not use tool if switch does not turn it on and off.
Have damaged or defective switch replaced by
Hougen Manufacturing, Inc.
19. Service at Hougen Manufacturing Only.
Service this electric appliance in accordance with
the relevant safety regulations. Repairs to electric
appliances should only be done by a qualied person.
Repairs by others may endanger the user. Contact
Hougen Mfg., Inc. to arrange servicing.
20. Only use the specied accessories or attachment.
Use only the specied accessories or attachment
described in this Instruction Manual and the Ogura
catalog. Use of any other accessories or attachments
may result in an accident or injury.

4
Hydraulic Oil 75376
9/16" Diameter Punch 76341
9/16" Diameter Die - Type SB - For material 5/64" to 3/8" 76323
Spanner 75771
10mm Open End Wrench 75771
Foot Switch (115V) 75110
Foot Switch (230V) 76479
Foot Switch (230V, Type I) 76480
Work Stand 76456
M3 Hex Key 75742
M4 Hex Key 75743
M5 Hex Key 75744
M8 Hex Key 75746
Tommy Bar 75903
The Hougen-Ogura Electro-hydraulic Hole Puncher is an
integrated unit, containing the electric motor, hydraulic
pump, and "C"-frame punching unit. It uses hydraulic
power to force the punch through the workpiece, and a
strong spring to return the punch piston to its "home"
position. The patented design includes an automatic valve
that releases the hydraulic pressure when the punch
piston is at the bottom of its stroke. The automatic valve
remains open until the punch piston has fully returned to
the home position. As a result of this design, the piston will
not return to its home position automatically unless the full
stroke has been completed.
Also, the punch will not begin another stroke unless the
punch has fully returned to the home position, resetting
the automatic valve. In the event that the punch
does stick in the material, keeping the punch
piston from returning to the home position, the
75004PR now features a power return. Leaving
the manual return valve closed and depressing
the trigger, the punch piston will now be
powered back to the home position. To allow the
punch piston to be manually returned in the event that
the punch cycle is stopped prior to completion, a manual
return valve is provided.
75004PR CONTENTS
PRINCIPALS OF OPERATION
A: 3/8"
(10mm)
B: 1-1/2"
(40mm)
C: 19/32"
(15mm)
D: 2-3/4"
(72.5mm)
E: 4"
(100mm)
F: 1-3/4"
(44mm)

5
Although the foot switch is guarded against inadvertent
operation, it is best to position the foot pedal away from
normal standing position. Place it in a position that
requires deliberate effort to reach and activate the switch.
The trigger switch should be locked on only when ready
to punch. Release the trigger switch immediately after
punching to prevent operation by inadvertent actuation
of the foot switch.
FOOT SWITCH
The Hole locator Gauge can be set to hold the Hole
Punches at a constant distance from the edge of the
workpiece. The gauge is held in place by one or two socket
head caps screws. Before making any adjustment,
rst, unplug the power cord. To adjust the position of the
gauge, loosen the cap screw(s), tap the gauge into the
desired position and retighten the cap screw(s).
HOLE LOCATOR GAUGE ADJUSTMENT
All models can be used with an accessory work stand for
bench or table mounting of the Hole Puncher. The stand
is standard with all models. To install the stand, rst
unplug the power cord., then mount the unit to the stand
with the supplied hardware.
When using the stand, periodically check to make sure
that the punched material (slugs) are not stacking up
between the exit hole in the "C"-frame and the stand.
Keep this area clear of accumulated slugs.
USING THE WORK STAND
TRIGGER SWITCH
SLIDE STOPPER
Pull the trigger switch for punching operation. Make
sure that the switch is fully depressed. DO NOT ride
the switch as this will harm the motor.
The lock button is used to lock the trigger switch “on”
when using the foot switch. Pull the trigger switch and
push in the lock button. To unloc, push in the lock
button again.
Punching up to 40mm depth, from the edge of material, can be done using the slide stopper.
CAUTION
Before attaching or removing slide stopper, ensure that
the machine is disconnected from its power source to
prevent accidental operation and personal injury.
1. Loosen the set bolt and nut to remove the Die.
2. Remove the bolt and washer xing the slide stopper.
3. Remove the slide stopper by pulling it to the upper side
of the C frame.
4. Insert the slide stopper for maximum depth from the
bottom side of the C frame.
5. Fix the slide stopper with the bolt and washer removed
in procedure #2 above.
6. Install the die with the set bolt and nut removed in
procedure #1 above.

6
REMOVING AND INSTALLING ROUND PUNCHES
Prior to removing a punch, jog the punch piston down
until it puts pressure on a piece of material that is of the
appropriate thickness. With a pin spanner, loosen the
retaining nut. Manually release the punch piston with the
manual release valve, disconnect the unit from the power
supply and then remove the retaining nut and punch.
Prior to installing a different punch, check for debris in the
retaining nut and punch piston. Clean if necessary. Prior to
installing a punch, verify the "O" ring on the punch piston is
clean and not damaged.
Place your punch into the retaining nut, properly
align the punch within the punch piston and hand
tighten the retaining nut. Plug in power, jog the
punch piston down until it makes contact with your
work surface. Tighten the retaining nut with the pin
spanner. Manually release the punch piston. Your
now ready to punch your material. Failure to align
your punch properly could result in serious damage
to your machine. It is not necessary to remove your
die to install the punch piston.
ROUND PUNCHES
1. Be sure that the punch piston is fully retracted
and remove the strippers to make access to the
parts easier.
2. The punch must be removed rst and then the
die. Unscrew the punch retaining nut to remove
the punch and remove the set bolt and the nut
to remove the die.
Note: When replacing the punch and the die,
make sure that the correct size, thickness
and hole shape is seleted. Shaped punches
and dies must be properly aligned with
each other.
3. Place the punch in the punch retaining nut, then
insert the punch with the nut into the punch piston
and hand tighten the nut.
Note: When installing a punch with a stepped
edge (anti rotation), make sure the orientation
is correct and that the stepped edge is
correctly positioned in the punch piston.
4. Make sure the punch is correctly positioned in the
punch rod and tighten the punch retaining nut
rmly with the Tommy Bar supplied.
5. Place the die in the C-frame in the proper orientation
secure rmly with the set bolt and tighten the nut.
6. Replace the strippers.
CAUTION
Before replacing the punch and die, ensure that
the machine is disconnected from its power
source to prevent accidental operation and
personal injury.
CAUTION
Check the buttery bolts, holding the stripper,
regularly to ensure that they are tight. Loose
bolts may cause the stripper to detach and
damage the tool.
WARNING
If the punch and die are not the same size of and
they are not positioned properly , the punch may
strike the die causing both parts to break. In such
a case, pieces ying off from the broken parts may
cause personal injury.

7
REMOVING AND INSTALLING OBLONG PUNCHES
OBLONG PUNCHES
1. Be sure that the punch piston is fully retracted
and remove the strippers to make access to the
parts easier.
2. The punch must be removed rst and then the
die. Unscrew the punch retaining nut to remove
the punch and remove the set bolt and the nut
to remove the die.
Note: When replacing the punch and the die,
make sure that the correct size, thickness
and hole shape is seleted. Shaped punches
and dies must be properly aligned with
each other.
3. Place the punch in the punch retaining nut, then
insert the punch with the nut into the punch piston
and hand tighten the nut.
Note: When installing a punch with a stepped
edge (anti rotation), make sure the orientation
is correct and that the stepped edge is
correctly positioned in the punch piston.
4. Make sure the punch is correctly positioned in the
punch rod and tighten the punch retaining nut
rmly with the Tommy Bar supplied.
5. Place the die in the C-frame in the proper orientation
secure rmly with the set bolt and tighten the nut.
6. Replace the strippers.
CAUTION
Before replacing the punch and die, ensure that
the machine is disconnected from its power
source to prevent accidental operation and
personal injury.
CAUTION
Check the buttery bolts, holding the stripper,
regularly to ensure that they are tight. Loose
bolts may cause the stripper to detach and
damage the tool.
WARNING
If the punch and die are not the same size of and
they are not positioned properly, the punch may
strike the die causing both parts to break. In such
a case, pieces ying off from the broken parts may
cause personal injury.
CAUTION
Make sure the stepped edge of the Oblong
Punch is positioned correctly in the Punch Rod
and that the Punch Retaining Nut is properly
fastenened.

8
SELECTING PROPER DIES
Proper die selection is essential. Other than the obvious
necessity of matching shaped punches and dies, there are
two other basic selection factors that must be considered.
The rst is die clearance. Different material types and
different material thicknesses require different clearances
between the punch and die. In order to maintain the best
possible hole while remaining within the tonnage
capacity of the machine, it is essential to choose the die
with the proper clearance. The second is the die angle.
Most structural shapes can be punched with the standard
at dies, but "I" -beams and most channels which
have a 2-in-12 taper require the use of special
9-1/2 degree angled dies. Car and ship channel
anges and other structural shapes with a 2 degree
taper can be punched with at dies. Materials with
a ange taper of less than 5 degrees can also be
punched with the at die, however, the hole will be
slightly angled. Refer to specic information and
tables within this manual for the proper punch and
die combination.
Hougen-Ogura Punches are
designed to be used in
Structural Steel. If used in harder
or higher tensile strength
materials, performance will be
impeded and serious damaged
could occur to your unit.
Your Hougen-Ogura punch unit
has been equipped with a new
die conguration. Please review
this information prior to
operating your machine
1. To make it easier, please remove the
strippers 3. Pull the die up to the tip of the punch
2. Unscrew the nuts and set screws
that hold the die in place
4. Remove the die from the “C”- frame,
inclining it to remove.
STRIPPER
STRIPPER
PUNCH
SET SCREW
NUT
REMOVING THE NEW DIE
INSTALLING A PUNCH
1. To make the operation easier, first remove the strippers on both sides.
2. Reference your Operators manual and remove your punch and the die.
3. Install a new punch and punch retaining nut.
4. Install the die (Reference the steps above and work in reverse)
5. Tighten the punch retaining nut according to the Instructions in your Operators manual.
New Die Old Die
CAUTION WHEN SELECTING THE DIE
It is important that the die selected is correct for the thickness of the material to
be punched.
Punching material of thickness 4 mm to 8 mm using a die for thinner material
can cause the punch to jam in the material. This is due to the smaller clearance
betweenthe die and punch. In such a case the material will be pulled up by the
retracting punch as shown in the drawing on the left. Special care should be
taken when punching at bar of mild steel, aluminum and copper.
Material

9
OPERATING PROCEDURES
1. Before make any adjustment, turn off the power supply and unplug the power cord.
2. Check the position for punching and adjust the slide stopper to the required distance. The slide stopper, which is set to
hold the hole puncher at a constant distance from the edge of the workpiece, is held in place by one or two socket head
cap screws. Loosen the cap screw(s) and tap the slide stopper into the desired position. Retighten the cap screw(s).
3. Plug the power cord into a power outlet, ensuring that the voltage of the tool is the same as the supply.
4. Check that the return lever is fully closed in the clockwise direction.
5. Make sure that the punch piston is fully retracted.
6. Make sure that the proper punch and die are selected and that they are installed correctly.
7. Place the puncher in the require position on the work piece, using the slide stopper as a guide and lining up the point
of the punch with the center mark of the hole to be punched.
8. Pull the trigger switch. The punch rod will extend and push the punch through the material. Keep the switch on until the
punch has reached the end of its stroke and returns to its starting position. If the punch doesn’t return after punching
nishes, release the switch to turn the motor off. Pull the switch again to run the motor and to return the punch.
(See further explanation below for procedure when punch becomes stuck in the material.)
To aid accurate and easy positioning of the punch, the switch can be operated on and off to jog the punch down to the
work piece. If the position is not satisfactory, open the manual return lever to retract the punch for another attempt. If the
punch doesn’t return to its starting position with manual return lever open, pull the trigger switch to return the punch.
CAUTION WHEN USING THE STRIPPER
Do not position the material with one end or both ends
unsupported by the stripper. If the material is not properly
supported, it will move when the punch tries to return causing
the punch to jam and damage the tool.
Material
Stripper
When the punch fails to come out of the material after the punching:
1. Pull the trigger switch to run the motor and to return the punch to its
starting position by hydraulic power.
2. Release the switch, when the punch is fully returned to its starting
position.
3. Proceed with the next punching operation according to the normal
operating procedure.
When the punch fails to come out of the material after the
punching or when it is necessary to stop the operation before
punching is nished:
1. Turn the return lever counterclockwise until it hits the spring pin and
then immediatley back to its starting to release the internal pressure.
Note: If at this stage the punch retracts from the material under its own
power, allow the punch to completely return and then turn the return
lever back to its position. In this case it is not necessary to complete
the stages 2 and 3.
2. Pull the trigger switch to run the motor and to return the punch to its
starting position by hydraulic power.
3. Release the switch when the punch is fully returned to its starting
position.
4. Proceed with the next punching operation according to the normal
operating procedure.

10
ADDING OIL
4. Carefully open the oil port by removing the socket
head cap screw.
5. Using the small squeeze bottle supplied with the
Hole Puncher, carefully add hydraulic oil to
completely ll the reservoir. Rock the Hole Puncher
back and forth slightly several times to free any
trapped air bubbles, then add additional oil if
necessary.
6. Replace the cap screw and wipe up any excess oil.
7. Cycle the Hole Puncher several times with the
Manual return Valve open, and again with the valve
closed, to work any trapped air out of the system,
then repeat the above procedure, making sure that
the punch piston is almost at the bottom of the stroke
before removing the cap screw from the oil port.
8. Add additional oil as necessary. If the unit was
extremely low on oil, it may be necessary to repeat
the procedure several times.
Use of the correct hydraulic oil is essential. Approved oils
are Shell "TELLUS Oil" and Exxon "TERESSTIC" (Part
No. 75376). Grade #46 viscosity must be used. Check the
unit specications. Make sure that the work area and all
equipment are clean so that no dirt, dust or other foreign
material can get into the hydraulic oil or pump area.
1. Locate the socket head cap screw that plugs the oil port.
It is just above the manual return lever on the right hand
side of the Hole Puncher.
2. Lay the Hole Puncher on its left side so that the oil port
is facing up.
3. Turn on the switch to move the punch piston almost
to the bottom of its stroke. If necessary, cycle the punch
several times to determine where the bottom of the
stroke is, and to correctly position the punch piston.
In this position, the maximum amount of oil has been
drawn from the pump and the correct ll can be
obtained.
MAINTENANCE
CARBON BRUSH REPLACEMENT
When the carbon brushes become less than 6mm the motor force deteriorates because of low rectication. Carbon
brushes need to be replaced.
1. Remove the carbon brush cap of the motor outer frame using a standard screwdriver.
2. Replace the carbon brushes with new ones.
3. Put back the caps.
CAUTION
Keep the air hole at the end of the C frame clear
of dirt and obstructions. The air hole has to be
open in order to control the hydraulic pressure.
Do not undo or remove the three screws in the
drawing on the left. Doing so will cause oil to
leak from the tool.
CAUTION

11
PUNCH AND RETAINING NUT
HELPFUL HINTS FOR HOLE PUNCHING
Each of the punches is provided with a sharp point at its
center. If the hole locations are center punched, the point
on the end of the punch may be used to "nd" the center
punched spot.
Also, for accurate and easy positioning of the punch to a
hole location, the switch can be intermittently pulsed on
and off to jog the punch down to the work surface.
If the position is not satisfactory, open the manual return
valve to retract the punch for another attempt. This
operation can also be performed with the manual return
valve "cracked" open slightly to prevent full punching
pressure from being developed. In this manner, the
punch can be easily brought right down to the surface
without beginning to punch the hole. If the location is
satisfactory, close the valve and nish the operation.
Punch
O-Ring
IMPORTANT NOTE
PERIODICALLY CHECK THE
RETAINING NUT, MAKING
SURE IT IS TIGHTENED
PROPERLY.

12
PARTS BREAKDOWN

13
Det # Part # Description Qty
176460 Slide Stopper 1
275157 Washer WM5 2
376402 Bolt HB5 x 12 2
475063 Grip Handle 1
575175 Bolt 6 x 15 2
675162 Washer SW6 2
776461 Stripper R 1
876404 Punch Retaining Nut 1
9SEE LIST Punch 1
10 75091 Nut NM6 2
11 75120 Bolt HS6 x 15 2
12 76405 Bolt GDL 1/16 3
13 76462 C-frame 1
14 76463 Stripper L 1
15 SEE LIST Die 1
16 75909 O Ring P8 3
17 ----- Urethane Form 1
18 75137 Oil Leveler Sack 1 set
19 76408 Bushing 1
20 76409 O Ring 1
21 76410 Bushing Holder 1
22 75155 Washer SW8 1
23 76411 Back Up Ring 1
24 76412 SKY Packing 1
25 76464 Punch Return Spring 1
26 76465 Punch Rod 1
27 75099 Spring Pin 1
28 75135 Punch Rod Key 1
29 76414 O Ring 1
30 76415 Packing 1
31 76416 Spool Release Valve 1
32 75202 Valve Return Spring 1
33 75203 Stopper Plate 1
34 76417 Release Valve Spring 1
35 75101 Washer HW4 2
36 75205 Bolt HB4 x 6 2
37 76418 O Ring 1
38 76419 Back Up Ring 1
39 75159 Washer 12
40 76420 Bolt HB8 x 22 12
41 76421 Piston 2
42 75053 Piston Return Spring 2
43 75050 Check Valve 2
44 75052 Check Valve Spring 2
45 75325 Packing 2
46 75326 O Ring 2
47 76466 Cylinder with Piston 1 set
48 75208 Steel Ball D4 5
49 75207 Bolt HS5 x 5 5
50 76423 Steel Ball D3 2
51 76424 Bolt HS4 x 4 2
52 76425 Liner B 1
53 75054 Magnet 2
54 75209 Spring Pin 1
55 75085 O Ring 1
56 75046 Return Valve 1
57 75047 Return Lever 1
58 75160 Bolt HS6 x 8 2
59 75256 Stop Ring 1
60 76467 Ball Bearing 1
61 76426 Needle Holder B 1
Det # Part # Description Qty
62 76427 Needle Holder A 1
63 76428 Needle Bearing 1
64 76429 Stop Ring 1
65 76430 Pump Case 1
66 75090 Seal Washer 1
67 75107 Bolt HB10 x 15 1
68 75259 Oil Seal 1
69 75327 Ball Bearing 1
70 76468 Motor Flange 1
71 75835 Washer 4
72 76433 Bolt 4
73 75821 Armature Set (110V) 1 set
76469 Armature Set (220V) 1 set
74 75825 Rubber Pin 1
75 75822 Insulator Washer 1
76 75823 Ball Bearing 1
77 75824 Thrust Washer 1
78 75827 Fun Guide 1
79 75828 Screw 5 x 65 2
80 75829 Field (110-115V) 1
76470 Field (220-240V) 1
81 75830 Field Support Set 1
82 75838 Motor Housing Set 1
83 75835 Washer MW5 4
84 75836 Washer SW5 4
85 75837 Bolt HB5 x 25 4
86 75834 Anti Vibration Rubber B 2
87 75831 Brush Cap 2
88 75832 Carbon Brush (Pair) 1 set
89 75839 Handle Set (Pair) 1 set
90 75850 Anti Vibration Rubber A 4
91 75851 Screw 4 x 25 5
92 75841 Pin 3 2
93 75842 Compression Spring 1
94 75843 Lever 1
95 75844 Trigger Switch 1
96 75845 Spacer 1
97 75846 Switch Lever 1
98 75847 Rubber Plate 1
99 75848 Cord Clamp (110-115V) 1
76446 Cord Clamp (220-240V) 1
100 75849 Screw 2
101 75840 Label 1
102 75852 Strain Relief (115V) 1
76449 Strain Relief (230V) 1
103
75870 Electric Supply (115V) 1
76451 Electric Supply (230V) 1
76477 Electric Supply (230V, Type I) 1
104 76471 Name Label (115V) 1
76478 Name Label (220V) 1
105 75865 Caution Label 1
106 75864 Ogural Logo Label 1
107 75156 Bolt HB6 x 15 2
108 76456 Work Stand 1
109 76472 Retaining Screw 1
110 76458 Slide Stopper 1
111
75110 Foot Switch (115V) 1
76479 Foot Switch (230V) 1
76480 Foot Switch (230V, Type I) 1
112 76459 Condenser 1
MODEL 75004PR PARTS LIST

14
PUNCHES AND DIES FOR 75004PR
ROUND PUNCH MATERIAL DIE
Size Part
No. Thickness Style Size Part
No.
Nominal Actual Metric
15/64" .234 6mm 76334
5/64 (.078) to 1/8 (.125)
14 to 11 GA. F, A, H Die 15/64 SA 76308
5/64 (.078) to 1/4 (.250)
14 to 3 GA. F, A, H Die 15/64 SB 76309
1/4" .256 6.5mm 76335
5/64 (.078) to 1/8 (.125)
14 to 11 GA. F, A, H Die 1/4 SA 76310
5/64 (.078) to 1/4 (.250)
14 to 3 GA. F, A, H Die 1/4 SB 76311
5/16" .315 8mm 76336
5/64 (.078) to 1/8 (.125)
14 to 11 GA. F, A, H Die 5/16 SA 76312
5/64 (.078) to 1/4 (.250)
14 to 3 GA. F, A, H Die 5/16 SB 76313
11/32" .335 8.5mm 76337
5/64 (.078) to 1/8 (.125)
14 to 11 GA. F, A, H Die 11/32 SA 76314
5/64 (.078) to 1/4 (.250)
14 to 3 GA. F, A, H Die 11/32 SB 76315
3/8" .394 10mm 76338
5/64 (.078) to 1/8 (.125)
14 to 11 GA. F, A, H Die 3/8 SA 76316
5/64 (.078) to 1/4 (.250)
14 to 3 GA. F, A, H Die 3/8 SB 76317
5/16" (.312) max. C Die 3/8 C 75450
7/16" .433 11mm 76339
5/64 (.078) to 1/8 (.125)
14 to 11 GA. F, A, H Die 7/16 SA 76318
5/64 (.078) to 3/8 (.375)
14 to 3 GA. F, A, H Die 7/16 SB 76319
5/16" (.312) max. C Die 7/16 C 75451
15/32" .472 12mm 75910
5/64 (.078) to 1/8 (.125)
14 to 11 GA. F, A, H Die 15/32 SA 75912
5/64 (.078) to 1/4 (.250)
14 to 3 GA. F, A, H Die 15/32 SB 75913
1/2" .512 13mm 76340
5/64 (.078) to 1/8 (.125)
14 to 11 GA. F, A, H Die 1/2 SA 76320
5/64 (.078) to 3/8 (.375)
14 to 3 GA. F, A, H Die 1/2 SB 76321
5/16" (.312) max. C Die 1/2 C 75452
9/16" .551 14mm 76341
5/64 (.078) to 1/8 (.125)
14 to 11 GA. F, A, H Die 9/16 SA 76322
5/64 (.078) to 3/8 (.375)
14 to 3 GA. F, A, H Die 9/16 SB 76323
5/16" (.312) max. C Die 9/16 C 75453
19/32" .591 15mm 76342
5/64 (.078) to 1/8 (.125)
14 to 11 GA. F, A, H Die 19/32 SA 76324
5/64 (.078) to 3/8 (.375)
14 to 3 GA. F, A, H Die 19/32 SB 76325
5/8" .625 15.9mm 76343
5/64 (.078) to 1/8 (.125)
14 to 11 GA. F, A, H Die 5/8 SA 76326
5/64 (.078) to 3/8 (.375)
14 to 3 GA. F, A, H Die 5/8 SB 76327
5/16" (.312) max. C Die 5/8 C 75959
11/16" .688 17.5mm 76344
5/64 (.078) to 1/8 (.125)
14 to 11 GA. F, A, H Die 11/16 SA 76328
5/64 (.078) to 3/8 (.375)
14 to 3 GA. F, A, H Die 11/16 SB 76329
5/16" (.312) max. C Die 11/16 C 75960
23/32" .709 18mm 75911
5/64 (.078) to 1/8 (.125)
14 to 11 GA. F, A, H Die 23/32 SA 75915
5/64 (.078) to 3/8 (.375)
14 to 3 GA. F, A, H Die 23/32 SB 75916
3/4" .750 19mm 76345
5/64 (.078) to 1/8 (.125)
14 to 11 GA. F, A, H Die 3/4 SA 76330
5/64 (.078) to 3/8 (.375)
14 to 3 GA. F, A, H Die 3/4 SB 76331
5/16" (.312) max. C Die 3/4 C 75961
25/32" .787 20mm 76346
5/64 (.078) to 1/8 (.125)
14 to 11 GA. F, A, H Die 25/32 SA 76332
5/64 (.078) to 3/8 (.375)
14 to 3 GA. F, A, H Die 25/32 SB 76333
5/16" (.312) max. C Die 25/32 C 75962
OBLONG PUNCH MATERIAL DIE
Size Part
No. Thickness Style Size Part
No.
Nominal Actual Metric
1/4"
x
3/8"
.256
x
.394
6.5mm
x
10mm
76347
5/64 (.078) to 1/8 (.125)
14 to 11 GA. F, A, H Die 1/4 x 3/8 A 76300
5/64 (.078) to 1/4 (.250)
14 to 3 GA. F, A, H Die 1/4 x 3/8 B 76301
1/4"
x
1/2"
.256
x
.512
6.5mm
x
13mm
76348
5/64 (.078) to 1/8 (.125)
14 to 11 GA. F, A, H Die 1/4 x 1/2 A 75643
5/64 (.078) to 1/4 (.250)
14 to 3 GA. F, A, H Die 1/4 x 1/2 B 75644
11/32"
x
1/2"
.335
x
.512
8.5mm
x
13mm
76349
5/64 (.078) to 1/8 (.125)
14 to 11 GA. F, A, H Die 11/32 x 1/2 A 75645
5/64 (.078) to 1/4 (.250)
14 to 3 GA. F, A, H Die 11/32 x 1/2 B 75646
11/32"
x
43/64"
.335
x
.669
8.5mm
x
17mm
76350
5/64 (.078) to 1/8 (.125)
14 to 11 GA. F, A, H Die 11/32 x 43/64 A 76302
5/64 (.078) to 1/4 (.250)
14 to 3 GA. F, A, H Die 11/32 x 43/64 B 76303
23/64"
x
17/32"
.354
x
.531
9mm
x
13.5mm
76351
5/64 (.078) to 1/8 (.125)
14 to 11 GA. F, A, H Die 23/64 x 17/32 A 76304
5/64 (.078) to 1/4 (.250)
14 to 3 GA. F, A, H Die 23/64 x 17/32 B 76305
3/8"
x
19/32"
.394
x
.591
10mm
x
15mm
76352
5/64 (.078) to 1/8 (.125)
14 to 11 GA. F, A, H Die 3/8 x 19/32 A 76306
5/64 (.078) to 1/4 (.250)
14 to 3 GA. F, A, H Die 3/8 x 19/32B 76307
7/16"
x
5/8"
.433
x
.625
11mm
x
15.9mm
76353
5/64 (.078) to 1/8 (.125)
14 to 11 GA. F, A, H Die 7/16 x 5/8 A 75647
5/64 (.078) to 3/8 (.375)
14 to 3 GA. F, A, H Die 7/16 x 5/8 B 75648
5/16" (.312) max. C Die 7/16 x 5/8 C 75655
1/2"
x
3/4"
.512
x
.750
13mm
x
19mm
76354
5/64 (.078) to 1/8 (.125)
14 to 11 GA. F, A, H Die 1/2 x 3/4 A 75649
5/64 (.078) to 3/8 (.375)
14 to 3 GA. F, A, H Die 1/2 x 3/4 B 75650
5/16" (.312) max. C Die 1/2 x 3/4 C 75963
9/16"
x
13/16"
.551
x
.827
14mm
x
21mm
76355
5/64 (.078) to 1/8 (.125)
14 to 11 GA. F, A, H Die 9/16 x 13/16 A 75651
5/64 (.078) to 3/8 (.375)
14 to 3 GA. F, A, H Die 9/16 x 13/16 B 75652
5/16" (.312) max. C Die 9/16 x 13/16 C 75964
Flat Bar Channel H-Steel Angle
• Punching capacity data is based on mild steel of 65,000 psi
tensile strength

15
MELBORP ESUAC NOITULOS
TUBSNURROTOM
SEODNOTSIPHCNUP
TUOEMOCTON
NEPOSIEVLAVNRUTERLAUNAM EVLAVNRUTERLAUNAMESOLC
TNEICIFFUSNISILIOLIODDA
DENRUTERTONSAHNOTSIP
EMOHSTIOTYLETELPMOC
,SPIHCLEETSOTEUDNOITISOP
EHTNOSIRBEDREHTOROTRID
REDLOH-HCNUPDESOPXE
.NOITISOP
DESOPXEMORFSIRBEDNAELC
FONOITROPREDLOH-HCNUP
NOTSIPHCNUPHSUP.DORNOTSIP
.NOITISOPEMOHSTIOTKCAB
SIGNIRPSNRUTERNOTSIPHCNUP
DORHCNUPNRUTEROTKAEWOOT
EHTYBDECIVRESENIHCAMEVAH
YROTCAF
SEMOCNOTSIPHCNUP
GNIHCNUPTUB,TUO
KAEWOOTSIREWOP
HCNUPOT
TONSIEVLAVNRUTERLAUNAM
DESOLCYLETELPMOC EVLAVNRUTERLAUNAMESOLC
SIRIAROTNEICIFFUSNISILIO
RIOVRESERNIDEPPART LIODDA
STRAPNOTSIPROPMUPLANRETNI
DEGAMADROYTRID,NROWERA
YLREPORPGNINOITCNUFTONDNA
EHTYBDECIVRESENIHCAMEVAH
YROTCAF
TONSEODROTOM
ROOPROETATOR
ROTOMFONOITATOR
TIUCRICREWOPNEPO ,DROCNOISNETXE,GULPKCEHC
REKAERBTIUCRIC
EGATLOVREPORPMIECRUOSREWOPKCEHC
PORDEGATLOVEVISSECXE
FOERASDROCNOISNETXE
EHTROFEZISERIWTNEICIFFUSNI
.DROCEHTFOHTGNEL
ROSDROCDEGAMADRONROW
.SEHSURBNOBRACNROW.SGULP
STRAPROTOMLANRETNIDEGAMAD
EHTYBDECIVRESENIHCAMEVAH
YROTCAF
NEEWTEBGNIKAELLIO
DNAEMARF"C"
NEEWTEBROREDNILYC
PMUPDNAREDNILYC
GNISUOH
THGITTONERASTLOBSTLOBNETHGIT
DEGAMADSITEKSAG EHTYBDECIVRESENIHCAMEVAH
YROTCAF
DNUORAGNIKAELLIO
MORFRONOTSIP
AERALANRETNI
SECAFRUSROSLAESLANRETNI
KCASRELEVELLIO.DEGAMADERA
NEKORBSI
EHTYBDECIVRESENIHCAMEVAH
YROTCAF
TONSEODHCNUP
FOTUOPIRTS
RETFAECEIPKROW
GNIHCNUP
NROWSIEIDROHCNUPECALPER
ROLAIRETAMROFEIDREPORPMI
SSENKCIHT
DNAHCNUPREPORPROFKCEHC
NOITCELESEID
HTOBREDNUTONSAWECEIPKROW
ROGNIDNIBSIDNASREPPIRTS
HCNUP
SILAIRETAMEHTTAHTERUSEKAM
GNIHCNUPEHTNIDETAESYLLUF
AERA
TROUBLESHOOTING

Hougen Manufacturing, Incorporated warrants its Portable Magnetic Drills, Electro-hydraulic Hole Punchers for a period
of (1) one year and other products for ninety (90) days from date of purchase against defects due to faulty material or
workmanship and will repair or replace (at its option) without charge any items returned. This warranty is void if the
item has been damaged by accident or unreasonable use, neglect, improper service, or other causes not arising out
of defects in material or workmanship. No other expressed warranty is given or authorized. Hougen Manufacturing,
Inc. disclaims any implied warranty of MERCHANTABILITY or FITNESS for any period beyond the expressed warranty
and shall not be liable for incidental or consequential damages. Some states do not allow exclusions of incidental or
consequential damages or limitation on how long an implied warranty lasts and, if the law of such a state governs your
purchase, the above exclusion and limitation may not apply to you. This warranty gives you specic legal rights and
you may also have other rights which vary from state to state.
To obtain warranty service, return the item(s), transportation prepaid, to your nearest Factory Authorized Repair Center
or to Hougen Manufacturing, Inc., 3001 Hougen Drive, Swartz Creek, Michigan 48473.
Hougen Drills (Rotabroach Cutters) are warranted against manufacturing defects only. Subject to Hougen
Manufacturing inspection.
THIS WARRANTY IS IN LIEU OF ANY OTHER WARRANTY, EXPRESSED OR IMPLIED, INCLUDING ANY
WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
© 2015 Hougen Manufacturing, Inc.
Photographs and Specications shown are accurate in detail at time of printing. Manufacture reserves the right to
make improvements and modications without prior notice.
Hougen, Hougen-Edge, Rotabroach, Punch-Pro, Trak-Star and the Hougen logo are proprietary trademarks of
Hougen Manufacturing, Inc. Ogura and Ogura logo are proprietary trademarks of Ogura & Co., Ltd.
Hougen-Ogura Patent Notice
© 2015 Hougen Manufacturing, Inc.
Commercial / Industrial Limited Warranty
Hougen Manufacturing, Inc.
3001 Hougen Drive • Swartz Creek, MI 48473
Phone [phone] • Fax [phone]
www.hougen.com • [email protected]
Factory Warranty Repair Services
can be obtained by sending your product to:
Hougen Manufacturing, Inc.
3001 Hougen Drive
Swartz Creek, MI 48473
Attn: Repair Department