Hougen Portable User manual

POWER FEED MAGNETIC DRILL
OPERATOR’S MANUAL
FOR USE WITH “12,000-SERIES” HOUGEN® CUTTERS
HMD925

2
HOUGEN®
Portable Magnetic Drill
Model HMD925
Welcome to Hougen
Congratulations on your purchase of the Hougen® Portable Magnetic
Drill Model HMD925. Your model is designed to produce superior
holes quickly and efficiently. Through constant innovation and de-
velopment, Hougen is committed to provide you with hole-producing
tools and products to help you be more productive.
Before attempting to operate your new Portable Magnetic Drill, please
read all instructions first. These include the Operator’s Manual and
Warning Label on the unit itself. With proper use, care, and mainte-
nance, your model will provide you with years of effective hole drilling
performance. Once again, thank you for selecting our product and
welcome to Hougen.
Cutter Type........................Hougen “12,000-Series”
Hole Capacity....................7/16” - 1-1/2” Manual Mode
7/16” - 1-1/4” Power Feed Mode
Depth of Cut......................2”
Motor.................................450 RPM, 8A
Net Weight.........................37 Lbs.
Specifications
Hougen Manufacturing, Incorporated warrants its Portable Magnetic Drills and its Electro-hydraulic Hole Punchers for a period
of 1 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 workman
ship. 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 specific 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 Warranty Repair
Center or to Hougen Manufacturing, Inc., 3001 Hougen Drive, Swartz Creek, Michigan 48473.
Hougen Drills 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.
© 2005 Hougen Manufacturing, Inc.
Commercial / Industrial Limited Warranty
Photographs and Specifications shown are accurate in detail at time of printing. Manufacturer reserves the right to make
improvements and modifications without prior notice.
Hougen, Rotabroach, and Hougen-Edge are proprietary trademarks of Hougen Manufacturing Inc.

UNPACKING YOUR NEW MAGNETIC DRILL
1. Open shipping carton and remove the literature and
hardware packages.
2. Read and Follow All Instructions before attempting
to operate your new Magnetic Drill.
3. Complete and mail the Product Registration Card now.
It is important that Hougen Manufacturing, Inc. have a
record of product ownership.
4. Open hardware package and check contents.
10565 1/8” Hex wrench for Gib Adjustment
04558 Feed handles (3)
04532 Feed handle knobs (3)
90724 Safety chain
02635 3/16” Hex wrench for cutter installation
13013 5/32” Hex wrench
5. Using the handle of Magnetic Drill, lift unit out of the
shipping case.
6. Remove all packing and securing material from the drill
unit.
7. Screw the three Knobs (04532) into the three
Feed Handles (04558) and then screw Handles
into the Hub Assembly (19030). Do not overtighten
or may strip the knobs.
8. Your Magnetic Drill was factory adjusted prior to
shipping. Check to make sure that all gib
adjustment screws, motor mount screws, front
support bracket screws, and magnet mounting
screws are snug and have not vibrated loose in
transit.
9. Your new Magnetic Drill comes complete with
arbor mounted. The 3/4” diameter arbor bore
fits all 3/4”-shank “12,000-Series” Hougen
Cutters.
Reread Safety Warnings listed in the Operator’s
Manual and on the drill unit to avoid injury. Follow
operating procedures.
3
Always wear eye protection while
using cutting tools, or in the vicin-
ity of cutting.
CAUTION! The slug is ejected
at the end of the cut. Do not aim
cutter or arbor so that ejected
slug may hit someone around, or
below you.
CAUTION! Cutters are sharp.
Wear gloves when installing or
removing cutter from arbor. Do
not grab a rotating cutter.
CAUTION! To prevent electric
shock, do not use power tools
near wet areas, or where power
tool may become wet.
SAFETY FIRST
MOTOR EXPLODED VIEW 10
MOTOR PARTS 11
ELECTRICAL PANEL PARTS 12
WIRING DIAGRAM 13
EXPLODED VIEW 14-15
PARTS LISTING 16-17
DRILL MAINTENANCE & PROBLEM SOLVING 18
WARRANTY SERVICE CENTERS 20
WELCOME TO HOUGEN 2
UNPACKING YOUR DRILL 3
SAFETY INSTRUCTIONS 4 - 5
SAFETY SWITCH INDICATOR LIGHT 5
CONTROL PANEL 6
OPERATING INSTRUCTIONS 7
INSTALLING HOUGEN CUTTERS 8
CUTTING FLUID RESERVOIR 8
ARBOR & GIBS ADJUSTMENT 9
INDEX

4
Important Safety Instructions
1. Read All Instructions
2. Grounding Instructions
This tool should be grounded while in use to protect the
operator from electric shock. The tool is equipped with
a 3-conductor cord and a 3-prong grounding type plug
to fit the proper grounding type receptacle. The green
(or green and yellow) conductor in the cord is the
grounding wire. Never connect the green (or green and
yellow) wire to a live terminal. (Refer to Plug Diagram)
Section A
3. Safe Electrical Connection
Your Mag Drill is rated for use on 115VAC (Plug A) or
230V (Plug B) at 50-60Hz. Do not attempt to use drill on
power sources rated other than this. Wet electrical
connections are shock hazards. To prevent the cutting
fluid from traveling along the cord and contacting the
plug or power outlet, tie a drip loop in the power cord.
Also elevate extension cords or gang box connections.
4. Extension Cords
Use only 3-wire extension cords that have 3-prong
grounding type plugs and 3-pole receptacles that
accept the tool’s plug. Replace or repair damaged
cords. Make sure the conductor size is large enough
to prevent excessive voltage drop which will cause
loss of power and possible motor damage.
5. Do Not Force Tool
It will do the job better and faster at the rate for which
it was intended.
6. Keep Work Area Clean
Cluttered areas and benches invite injuries.
Keep dirt and chips from under the Cutter area.
7. Consider Work Area Environment
Do not expose tool to rain.
Do not use tool in damp or wet locations.
Keep work area well lit.
Do not use tool in presence of flammable liquids or
gases. Disconnect from power source when changing
cutters or maintaining drill.
8. Guard Against Electric Shock
Prevent body contact with grounded surfaces. For
example: pipes, radiators, ranges, refrigerator
enclosures.
9. Keep Children Away
Do not let visitors contact tool. All visitors should be
kept away from work area while in use.
10. Store Idle Tools
When not in use, tools should be stored in a dry, and
high or locked-up place — out of reach of children.
11. Use Right Tool
Do not force small tool or attachment to do the job
of a heavy duty tool.
Do not use tool for purpose not intended — for
example — do not use a circular saw for cutting tree
limbs or logs.
12. Non-Conforming Cutting Tools
Your Mag Drill is designed to use Hougen Cutters.
The use of drilling tools having different shank styles
is not recommended as they may not tighten securely
in the drill arbor with risk of accident or injury.
13. Secure Work
Use clamps or a vise to hold work. It is safer than
using your hand and it frees both hands to operate
tool.
14. Always Wear Safety Glasses or Goggles
15. Dress Properly
Do not wear loose clothing or jewelry. They might
entangle with spinning chips or get caught in
moving parts. Rubber gloves and nonskid foot
wear are recommended when working outdoors.
Wear sturdy leather gloves when working indoors.
Wear protective hair covering to contain long hair.
16. Do Not Abuse Cord
Never carry drill unit by its cord or yank it to discon-
nect from receptacle.
Keep cord away from heat, oil, and sharp edges.
17. Do Not Overreach
Keep proper footing and balance at all time.
Extension Cord Table
Plugs and Receptacles
HTGNEL
,DROCFO
TEEF
DEDNEMMOCER
ERIW
EGUAG
DEDNEMMOCER
ERIW
EGUAG
ROTOMV511
SPMA21-01
ROTOMV032
SPMA6-5
52OTPU 61 81
05-62 41 81
001-15 01 61
002-101 8 41
003-102 6 21
005-103 4 01
Grounding Pin
Grounding Pin
Grounding
Means
(C)
(A) (B)
(D)
WARNING: When using electric tools, basic safety precautions should always be followed
to reduce the risk of fire, electric shock, and personal injury, including the following:

5
26. Circuit Breaker
Changing of the circuit breaker to a higher amp rated breaker, or
bypassing the circuit breaker is not recommended and will void
product warranty.
27. Circuit Breaker Operation
The circuit breaker is a thermal breaker. When it reaches the
higher temperature rating it will trip and cause the unit to shut
down. This is a protective device and can be reset after 5 to 10.
To reset the breaker, press the breaker button back in. If it does
not reset, let the unit cool a little longer until you can push the
button in and it stays in position.
28. Safe Electrical Connection
Wet electrical connections are shock
hazards. To prevent the cutting fluid
from traveling along the cord and
contacting the plug or power outlet,
tie a drip loop as shown. Also elevate
extension cords or gang box
connections.
29. Save these Instructions.
Important Safety Instructions - Continued
18. Maintain Tools With Care
Keep tools sharp and clean for better and safer
performance. Do not use dull or broken Hougen Cutters.
Follow instructions for lubricating and changing
accessories. Inspect tool cords periodically and, if
damaged, have repaired by authorized service facility.
Inspect extension cords periodically and, if damaged,
have repaired by authorized service facility. Keep handles
dry, clean, and free from oil and grease.
19. Disconnect Tools
Disconnect when not in use, before servicing, and
when changing cutters or accessories.
20. Remove Adjusting Keys and Wrenches
Form a habit of checking to see that keys and
wrenches are removed from tool before turning it
on.
21. Check Damaged Parts
Before further use of the drill, a part that is
damaged should be carefully checked to determine
that it will operate properly and perform its intended
function. Check for alignment of moving parts, binding of
moving parts, breakage of parts, mounting, and any
other conditions that may affect its operation. A
part that is damaged should be properly repaired or
replaced by an authorized service center unless
otherwise indicated elsewhere in this operator
manual. Do not operate tool if switch does not turn
it on and off.
22. Stay Alert
Watch what you are doing and use common sense.
Do not operate tool when you are tired.
Have defective switches replaced by authorized
service center.
23. Outdoor Use Extension Cords
When tool is used outdoors, use only extension
cords intended for use outdoors and so marked.
24. Additional Safety Precautions
Arbor and cutter should never be used as a hand-
hold. Keep hands and clothing away from all moving
parts. Do not use Hougen Cutters where ejected slug
might cause injury (slug ejected at end of cut).
Also, adhere to all operating instructions. Do not drill
through any surface that may contain live electrical
wiring. Drilling into a live wire could cause exposed
metal parts of the drill to be made live. Remove chips
wrapped around Cutter and arbor after each hole. With
motor off and power disconnected, grasp chips with
leather gloved hand or pliers and pull while rotating
counterclockwise. Should the cutter become jammed in
the work, stop the unit immediately to prevent personal
injury. Disconnect the drill from the power supply and
loosen jammed cutter by turning the arbor counterclock-
wise. Never attempt to free the jammed cutter by starting
the motor. Service at authorized repair center only.
25. Operating Near Welding Equipment
DO NOT operate this unit on the same work surface that
welding is being performed on. Severe damage to the
unit, particularly the power cord, could occur. This could
also result in personal injury to the operator.
SAFETY SWITCH
INDICATOR LIGHT
The Safety Switch Indicator Light is a Standard Safety Fea-
ture on HMD925 magnetic drills. Its purpose is to inform the
user that an unsafe condition exists.
If light is Green:
In normal operation the safety switch light will be green.
Motor “On” and “Off” Switches function normally.
If light is Red:
A condition with the safety switch exists that needs to be
corrected.
Possible causes:
• Safety Switch is defective. Have drill serviced.
• Uneven work surface or material. Check work
surface for flatness.
• Dirt or chips under magnet. Clean work surface.
• Too thin material. Make sure material is at least 3/8”
thick.
HOUGEN MANUFACTURING RECOMMENDS THAT
CONDITIONS ARE CORRECTED SO LIGHT TURNS
GREEN. THIS ALLOWS FOR THE UNIT TO BE
OPERATED IN A SAFE MANNER.
When light is Red the motor will still function, but “ON” switch
becomes a momentary switch. (The switch must be held on
to operate motor.)
For any questions please contact Hougen Manufacturing’s
Technical Service at [phone].

6
OPERATION OF CONTROLS
BEFORE INSTALLING HOUGEN CUTTER
IMPORTANT: Before turning on the machine, it is important that the operator understands the interrelated
functions of the SAFETY SWITCH, MAGNET SWITCH, AND MOTOR SWITCH.
READ SAFETY SWITCH INDICATOR LIGHT INSTRUCTIONS PREVIOUS PAGE.
SAFETY SWITCH — Located in base of drill. Enables motor operation only when magnet is
properly seated on a clean and flat work surface. Turns motor off if switch
detects lift of unit.
MAGNET ON/OFF SWITCH — Energizes and De-Energizes the magnetic base and activates the
safety switch. Motor can now be started by pushing the motor START switch.
MOTOR START/STOP SWITCH — Starts and Stops the motor (See instructions previous page).
POWER/MANUAL FEED SWITCH — Enables or disables Power Feed Mode.
1. Place Magnetic Drill on clean, flat steel plate that is at least 3/8” thick.
2. Plug unit into proper AC power source. DO NOT use with DC Power.
3. Locate the Magnet ON and OFF switches and the motor STOP and START switches.
4. NOTE: A loss of power will de-energize the magnetic base and deactivate the motor.
When power is restored, the magnet will reenergize, however, the motor START switch
must be depressed before the motor will start.
MOTOR
MAGNET
Made in
U.S.A.
POWER/MANUAL FEED
SAFETY SWITCH LIGHT
HMD925 Power Feed
SAFETY SWITCH LIGHT

1. Make sure workpiece and bottom of magnet are free of chips, oil, etc.
2. Position drill by sliding it and gently feeding Arbor so that pilot point is
touching center of hole to be drilled.
3. Secure unit to workpiece with safety chain.
4. Turn magnet ON by pressing the magnet ON switch.
5. On Control Panel Flip Power/Manual Feed Switch to Power Feed.
6. Turn On Cutting Fluid and check for proper fl ow by slightly depressing
pilot on work surface.
7. Make certain that cutter is clear of workpiece by 1/16” - 1/8” and turn
motor ON by pressing the motor START switch.
8. In center of feed handles Flip Power Feed Handle out to engage
Power Feed Motor. The unit will feed itself into and through
the workpiece.
9. At conclusion of cut, motor will automatically turn OFF.
CAUTION: Slug can eject with force and distance.
Disengage Power Feed Handle then turn Feed Handles to raise Arbor
and make sure slug has fallen free.
10. Turn magnet OFF by pressing the magnet OFF switch.
11. Disconnect from power source.
12. If necessary, remove chips from cutter and magnet, preferably wearing
leather work gloves and/or with pliers.
13. Disconnect safety chain and you are ready to move unit to new drilling
position.
6
OPERATING INSTRUCTIONS
Power Feed Mode
Manual Feed Mode
Always remember that the magnet’s holding power is directly related to the workpiece thickness and surface
condition. Since magnetic attraction diminishes with thinner material or rough surfaces, mechanical clamping
of drill unit to the workpiece should be used when cutting thin material (3/8” or less) or material with uneven
surfaces.
1. Make sure workpiece and bottom of magnet are free of chips, oil, etc.
2. Position drill by sliding it and gently feeding Arbor so that pilot point is
touching center of hole to be drilled.
3. Secure unit to workpiece with safety chain.
4. On Control Panel Flip Power/Manual Feed Switch to Manual.
5. Turn magnet ON by pressing the magnet ON switch.
6. Turn Feed Handle, raising the cutter until the pilot is above the work
surface.
7. Turn on coolant bottle.
8. Make certain that cutter is clear of workpiece and turn motor ON by
pressing the motor START switch.
9. Feed Cutter slowly into workpiece. Only after cutting path is established
to a depth of about 1/16” can full force be applied to feed handles.
10. Ease up on feed pressure as cutter starts breaking through.
11. At conclusion of cut, turn motor OFF by pressing motor STOP switch.
CAUTION: Slug can eject with force and distance.
Turn Feed Handles to raise Arbor checking to make sure the slug has
fallen free.
12. Turn magnet OFF by pressing the magnet OFF switch.
13. Disconnect from power source.
14. If necessary, remove chips from cutter and magnet, preferably wearing
leather work gloves and/or with pliers. Disconnect safety chain and you
are ready to move unit to new drilling position.
Power Feed
Manual Feed
7
Power Feed
Engagement Handle
Step 5
Step 8

INSTALLING HOUGEN CUTTER IN ARBOR
1. Disconnect from power source.
2. Lay drill on its side with feed handles up or be sure Arbor clears table
if unit is in normal operating position.
3. Turn Feed Handles until cutter mounting set screws are exposed
and completely remove the set screw.
4. Insert proper pilot in shank end of Hougen Cutter.
5. Insert Hougen Cutter until flat on cutter shank is aligned with set
screw holes and is exactly perpendicular to axis of set screw holes.
6. Insert set screws and tighten.
OPERATION OF CUTTING FLUID RESERVOIR
1. With Drill in operating position, turn the feed handles
so that cutter and pilot are above the work surface.
2. Fill reservoir by removing cap on bottle.
3. Turn on coolant bottle.
4. Test metering capabilities of Arbor/Cutter/Pilot assembly
(magnet ON-motor OFF) by feeding the Arbor gently
toward work surface until pilot is pushed up into Cutter,
thus allowing fluid to filter down onto work surface
through a groove in the pilot.
5. Fluid output can be adjusted by position of On/Off Valve.
On/Off Valve
8

Adjust Gibs before adjusting front support bracket.
1. Loosen Arbor Support Bracket Bolts.
3. Be sure top of arbor is flush with the shoulder on motor output shaft. Also make certain arbor is securely
fastened.
4. Turn feed handle until motor and spindle are at the bottom of their travel.
5. Tighten Arbor Support Bolts.
6. Feed slide up and down a few times, checking for free and uniform movement.
NOTE: Check Arbor support bolts regularly to make certain they are tight. Tighten as required.
ADJUSTMENT OF GIBS
1. Loosen all Gib Screws.
2. Feed the drill in and out a few times and then, with top of motor slide flush with top of housing, tighten the Gib
Screws until you feel them touch the Steel Gib.
3. Feed the drill in and out again.
4. Adjust Gib Screws so that there is uniform pressure from top to bottom. (Top of motor slide flush with top of
housing.)
5. Turn each Gib Screw in about 1/8 to 1/4 turn, depending upon your preference.
6. Gibs should be tight enough so that slide moves up and down smoothly with no wobble or shaking.
(Looseness will cause cutter breakage.) NOTE: Gibs should be lubricated regularly.
ARBOR ADJUSTMENT
1. Keep inside of Hougen Cutter clear of chips. Chips will interfere with cutting to maximum depth and may impede
the free oil flow and can cause cutter breakage.
2. Keep work, machine, arbor and Hougen Cutter free of chips and dirt.
3. Tighten all bolts and fasteners regularly.
4. We highly recommend using a light viscosity cutting fluid (preferably
Hougen Cutting Fluid - Part No. 11742-4)
5. Occasionally check metering of cutting fluid flow. Lack of cutting fluid may
cause Hougen Cutter to freeze in cut, slug to stick and may result in poor
cutter life.
6. Always start cut with light feed pressure and then increase sufficiently to
achieve maximum cutting rate.
7. Ease off on pressure as cutter begins to break through at the end of the cut.
8. Keep slide dovetails, brass gibs and feed rack lubricated and free of chips and dirt.
9. When slug hangs up in cutter, turn off motor and bring cutter down on a flat surface. This will normally straighten a
cocked slug, allowing it to be ejected.
10. When cutting large diameter or deep holes it may be necessary to stop in the middle of the cut to add cutting
fluid and remove the chips from around the arbor. (When doing this DO NOT raise the cutter out of the hole.
Doing so can allow chips to get under the teeth of the cutter and make it difficult to restart the cut.)
* ”Babying” the cutter through the cut will only decrease tool life.
HINTS FOR SMOOTHER OPERATION
#1 cause of cutter
breakage and
prematurely dull
teeth is too little
feed pressure*
9

MOTOR PARTS DIAGRAM
17617
17601
17618
17613
17608
17626
17609
17611
17616
17614
17605
17627
17625
Wires to Motor
Cord
17610
17603
17602
17607
17624
17623
17628
17606
17602
17632
17632
17621
17630
17604
17612
17632
17600
10

17002
90052
19033
75289
04502
04528
19021
MOTOR PARTS LIST
Part # Description Qty Part # Description Qty
04502 Brush Cover 1 17616 Spindle 1
04528 Label, Motor Safety 1 17617 Fan Guide 1
17002 Screw #6-32 1 17618 Gasket 1
17600 Field Case 1 17630 Armature 1
17601 Gear Housing 1 17628 Field 1
17602 Ball Bearing 2 17621 Carbon Brush 2
17603 Ball Bearing 1 17622 Brush Cap 2
17604 Ball Bearing 1 17623 Pan Head Screw 2
17605 Ball Bearing 1 17624 Pan Head Screw Short 2
17606 Dust Seal 1 17625 Pan Head Screw Long 2
17607 1st Inter. Gear Assy 1 17626 Retaining Ring 1
17608 2nd Inter. Gear Assy 1 17627 Retaining Ring 1
17609 Spur Gear 1 17632 Paper Washer 2
17610 Flat Washer 1 19021 Label, Motor 1
17611 Key 1 19032 Motor Assy 1
17612 Dowel Pin 1 19033 Motor Cord 1
17613 Flat Washer 1 75289 Pan Head Screw 2
17614 Gear Housing 1 90052 Washer #6 1
19032 MOTOR ASSEMBLY
11

19039
05190
02402
05336
04877
04878
04881
04879
04891
05318
05320
05319
05355
19038
05180
05330
05332 05331
05335
CONTROL PANEL PARTS LIST
Panel Assembly P/N: 19037
12
Part # Description Qty
02402 Rocker Switch 1
04877 Wire Harness 1
04878 LED Spacer 1
04879 LED Lens 1
04881 LED Bulb 1
04891 Stand Off 5
05180 Power Circuit board 1
05190 Switch w/ Relay 1
05318 Standoff 3
05319 Nut 3
05320 Screw 3
05330 Suppression Assy 1
05331 Two Wire Jumper 1
05332 Jumper 1
05335 Mini Toggle Switch 1
05336 Mini Boot Toggle Switch 1
05355 Screw PHMS #4-40 5
19038 Power Feed Circuit Board 1
19039 Faceplate 1

CONTROL PANEL HOOKUP
12 13
To Magnet
(J1 & J2)
Ground
Power In
Black
Power In
White
Drill Motor
Black
Drill Motor
White
To Feed Motor
Magnet Safety Switch (J4)
Slide Safety Switch (J3)

*05062
** INCLUDES
THESE PARTS
19032
05377
*05053
*05050
*05054
*10517
05055
40234
04375
10506*
40234
40398
02429
**90052 **17002
02423
02422
04500
90077
10560
40038
02430
02431 40077
90028
40237
90028
02428
10553
75156
50035
41044
19033
01299
40398
40302
40301
40300
40300
40295
40301
40302
40303
40332
04157
HOOKS TO
COOLANT
INDUCER
05060
02549
05057
40038 10560
05058
*04986
05061
05059
10983
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
90064
05187
05203
19042
19018
02411
10560
14

*05062
** INCLUDES
THESE PARTS
19032
05377
*05053
*05050
*05054
*10517
05055
40234
04375
10506*
40234
40398
02429
**90052 **17002
02423
02422
04500
90077
10560
40038
02430
02431 40077
90028
40237
90028
02428
10553
75156
50035
41044
19033
01299
40398
40302
40301
40300
40300
40295
40301
40302
40303
40332
04157
HOOKS TO
COOLANT
INDUCER
05060
02549
05057
40038 10560
05058
*04986
05061
05059
10983
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90064
05187
05203
19042
19018
02411
10560
15
HMD925
Exploded View

Part # Description Qty Part # Description Qty
01165 Retaining Ring 3 10506 SCR-Set 3/8-24 2
01299 Thrust Washer 1 10517 Retaining Ring 2
02217 SCR-SOC #8-32 1 10553 SCR-SHC 1/4-20 2
02411 Strain Relief-Motor Cord 1 10560 Washer 6
02412 Power Cord 1 10836 Retaining Ring 1
02422 Bracket-Motor Cord 1 10971 SCR-SHC 1/4-20 2
02423 Motor Cord Protector 1 10972 SCR-BHC #6-32 2
02428 Rack Gear 1 10983 Shield 1
02429 Gib-Brass Right 1 17002 SCR-SHC #6-32 1
02430 Gib-Brass Left 1 17271 Spring 1
02431 Gib-Steel 1 19004 Gear Box Cap 1
02549 Bolt Assy 2 19005 Drive Clutch 1
02902 Roll Pin 1 19006 Shaft Drive Clutch 1
04157 SCR-FHSC 2 19008 Gear 1
04375 Front Support Bracket Assy 1 19010 Hub Plate 1
04500 Slide 1 19013 Spline Shaft 1
04532 Knob 3 19014 Gear 1
04558 Feed Handle 3 19015 Gear & Shaft 1
04885 Safety Switch 1 19016 Gear 2
04909 Bracket- Safety Switch 1 19017 Shaft 2
04910 Plunger 1 19018 Switch 1
04986 Rubber Washer 1 19020 Spacer 4
05050 Spring 1 19025 Feed Motor 1
05053 Arbor Body 1 19026 Feed Motor Assy 1
05054 Spring Seat 1 19027 Gear 1
05055 Collar 1 19028 Gear Assy #1 1
05057 Bracket-Coolant Bottle 1 19029 Gear & Clutch Assy 1
05058 Bracket-Coolant Inducer 1 19030 Feed Hub 1
05059 Holder For Coolant Bottle 1 19032 Motor Assy 1
05060 Coolant Bottle 1 19033 Motor Cord 1
05061 Knob 1 19036 Housing 1
05062 Arbor Assy 1 19037 Control Panel 1
05107 Bearing 1 19040 Handle 1
05114 Spring 1 19042 Switch 1
05115 Washer 1 24100 Bearing 3
05187 Screw SHCS #2-56 2 40038 SCR-SHC #10-32 2
05203 SCR-SHC #8-32 2 40077 SCR-SHC 1/4-20 1
05377 Magnet 1
HMD925 PARTS LIST
16

Part # Description Qty
40234 Thrust Washer 2
40237 SCR-SS 1/4-28 4
40277 Roll Pin 1
40295 Inducer 1
40300 O-Ring 2
40301 Washer 2
40302 Retaining Ring 2
40303 Tube Fitting 1
40332 Inducer Assy 1
40398 Retaining Ring 2
41044 SCR-BHC #10-32 6
41048 SCR-SHC #10-32 4
50035 Lock Washer 1
51044 SCR-SHC #10-32 2
75156 SCR-SHC 6mm 1
90028 Lock Washer 3
90052 Lock Washer 1
90064 SCR-BHC 1/4-28 1
90077 SCR-BHC #10-32 4
17
HMD925 PARTS LIST CONT.

MAINTENANCE
In order to minimize wear on moving parts and to insure smoother operation and longer life for your magnetic drill,
the following maintenance should be done periodically, based on use.
1. Regularly tighten all fasteners and replace all worn parts.
2. Check motor brushes and replace if worn. (Break in period - 30 minutes at no load speed)
3. Check power cord and cord from panel to motor and, if cracked or frayed, return to an authorized repair center for
replacement.
4. Apply grease to the slide dovetails, brass gibs, and the feed gear rack. For best results use Shell Cyprina-RA or
equivalent.
5. Remove arbor and pack the bearing in the front support bracket with grease. Use Shell Cyprina-RA or equivalent.
REMEDIES FOR HOLEMAKING PROBLEMS
1. Trouble: Magnetic base won’t hold effectively to work.
a. Cause: Chips or dirt under magnet.
Remedy: Clear area of chips and dirt.
b. Cause: Irregular surface on bottom of magnet
or on workpiece.
Remedy: Lightly surface grind the bottom of the
magnet flat and/or file imperfections
flat on the work surface as needed.
2. Trouble: Cutter tends to move across surface
of work.
a. Cause: Magnetic base not holding effectively.
Remedy: See causes and remedies under No. 1
above.
b. Cause: Too much feed pressure at start of cut.
Remedy: Light pressure until a groove is cut.
The groove then serves as a stabilizer.
c. Cause: Worn pilot.
Remedy: Replace pilot
3. Trouble: Out of round holes.
a. Cause: Worn arbor support bracket bearing
and or collar.
Remedy: Replace: (only a few thousandths
wear permissible.)
b. Cause: Misaligned support bracket
Remedy: Realign support bracket
4. Trouble: Motor and slide won’t stay in set position
a. Cause: Gibs too loose
Remedy: Adjust gibs
5. Trouble: Erratic or intermittent feed.
a. Cause: Worn pinion and/or rack.
Remedy: Replace worn parts.
6. Trouble: Motor doesn’t run when motor START
switch is pushed.
a. Cause: Magnet is not turned on
Remedy: Push magnet ON button.
b. Cause: Magnet on rough or dirty work surface
and safety switch not fully depressed.
Remedy: File work surface flat and clean all
chips and oil from under magnet.
c. Cause: Safety switch broken.
Remedy: Replace safety switch.
d. Cause: No power.
Remedy: Check power source and extension
cords.
e. Cause: Worn motor brushes
Remedy: Replace brushes
f. Cause: Faulty motor START switch
Remedy: Return unit to an authorized repair
center to have switch replaced.
7. Trouble: Feed Motor doesn’t feed Arbor.
a. Cause: Feed engagement not turn on
Remedy: Pull Feed Engagement ON.
b. Cause: Power/Manual Feed not flipped to Power
Feed.
Remedy: Flip switch to Power Feed.
NOTE: If you are unable to correct any malfunction
after trying the above, do not attempt to operate the
drill. Return the unit to the factory or authorized repair
center for service.
18

Notes
19