Craftsman 103 24531 Users Manual

10324521 fcdc4f46-3057-49a0-bf26-1aab68f824d9 Craftsman Cordless Drill 103.24521 User Guide |

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OPERATING INSTRUCTIONS
AND PARTS LIST FOR
CRAFTSMAN DRILL PRESS
MODEL NUMBER 103.24521 & 103.24531
The model number of your Drill Press will be found on a plate located on the
base near the column. Always mention this number when communicating with
us regarding your Drill Press, or when ordering parts.

HOW TO ORDER REPAIR PARTS
All parts listed herein may be ordered through SEARS, ROEBUCK AND CO.
or SIMPSONS-SEARS LIMITED. When ordering parts by mail from the mail
order house which serves the territory in which you live, selling prices will be
furnished on request or parts will be shipped at prevailing prices and you will
be billed accordingly.
WHEN

ORDERING REPAIR PARTS, ALWAYS GIVE THE

FOLLOWING

INFORMATION AS SHOWN IN THIS LISL
1. The PART NUMBER.

3. The MODEL NUMBER.

103.24521 or
103.24531

2. The PART NAME.

4. The NAME of item.

DRILL PRESS

COAST TO COAST NATION-WIDE
SERVICE FROM SEARS
FOR YOUR CRAFTSMAN POWER TOOLS
SEARS,

ROEBUCK AND

CO.

and

SIMPSONS-SEARS LIMITED in Canada
back up your investment with quick, expert mechanical service and genuine
CRAFTSMAN replacement parts.
If and when you need repairs or service,
call on us to protect your investment in
this fine piece of equipment.

SEARS, ROEBUCK AND CO. - U.S.A.
IN CANADA, SIMPSONS-SEARS LIMITED

SOURCE FORM 27979-5AB

Lithographed in U.S.A.

OPERATING INSTRUCTIONS AND PARTS LIST FOR
DRILL PRESS
MODEL NUMBER 103.24521 AND 103.24531
MOTOR MOUNT
MOTOR MOUNT
LOCK SCREW

FEED STOP

HEADSTOCK
LOCK HANDLE

FEED STOP ROD

LOCK
HANDLE

FEED RETURN
SPRING ADJ.
KNOB

FEED HANDLE

FEED RETURN
SPRING ADJ.
KNOB LOCK
SCREW

CHUCK

CHUCK KEY

TABLE LOCK
HANDLE

BENCH MODEL

FLOOR MODEL
FIGURE 1

This drill press has been planned to give you the
utmost in precision and efficiency of operation.
Quality material coupled with rigid manufacturing
standards are maintained to give you the high standard of quality found in this tool. The chuck furnished
has a collar attached which will keep it firmly seated
on the spindle taper for all operations especially
where side thrust on the cutting tool, such as routing,
might loosen the chuck.
Exterior styling of the head on this drill press
encloses the revolving mechanism for safety, yet
leaves the belt readily accessible for changing to
obtain different spindle speeds.
All features combine to give you maximum trouble
free service.
To prevent damage or loss in shipment some of
the parts were disassembled from the tool. These
parts are listed below. Be sure they are all accounted
for before discarding any of the packing materials.
Box located under table contains:
1. Item No. 64, Column plug.
2. Item No. 59, V-belt.A3. Item No. 28, Chuck key."''
4. Item No. 60, Motor pulley with set screw.
5. Item No. 27, Chuck, l^
6. Three assemblies, each consistingj>f
Item No. 53, Feed handle rod.
Item No. 52, Feed handle

7.

Items No. 41, 42 and 44, Bumper and Stud
Assembly.
8. Paper bag contains:
Item No. 1 4, Allen wrench 3/32.
Item No. 62, Allen wrench 5/32.
Item No. 44, 4 pcs. Motor bolt nuts.
Item No. 48, 8 pcs. Motor bolt washers. ^
Item No. 49, 4 pcs. Motor bolts *•
Items No. 34, 35, 36 and 37 assembled.
ASSEMBLY:

Place feed handles on tool as shown in Fig. 1.
Clean taper on spindle and the tapered socket in
chuck body. Be sure they are free of any particles
which might not allow proper seating. Apply a
film of light oil to both spindle taper and chuck
socket. Place chuck on end of spindle and screw
the collar onto the threaded portion of the spindle.
Tap the chuck body, not jaws, from below with a
piece of wood to firmly seat it on spindle, then
tighten collar. The collar does not need to be excessively tight as it has a tendency to tighten when
drill press is running.
Place the chuck key in the hole provided at side
of table support, see Fig. 1.
Keep the Allen wrenches in a handy place near
the tool.

INSTALLATION:
Three 1 3/32 inch diameter holes have been provided in the base through which bolts or screws may
be inserted to secure the drill press to a well constructed bench or tool stand.
To install motor loosen the motor mount lock
screws, Fig. 1, until the motor mount may be removed. Fasten the motor to the motor mount with
the bolts, nuts, and washers provided so that when
motor mount is reinstalled on the tool, the larger
portion of the mount will be down. For convenience,
if your motor has a switch, and rotation will be correct, place motor on motor mount so that the switch
is on the left side. Direction of rotation of the
spindle must be clockwise when viewed from pulley
end of spindle.
Mount the motor pulley, No. 60, on motor shaft
so that the small diameter is at bottom. For normal
speeds, the largest groove on the motor pulley should
be in line with the smallest groove on the spindle
pulley, No. 1.
Tighten the pulley set screw with the larger Allen
wrench, No. 62. If your motor shaft has a flat on
it, position the pulley so that the set screw will
tighten against the flat.
Place belt around the pulleys and tighten, not
excessively, by sliding the motor mount away from
tool. Tighten the motor mount lock screws to
maintain this tension.
Adjust the screw, No. 42, until the center line of
the motor is parallel with the center line of the
column.
MOTOR:
A 4/£ horsepowei^475Q R.P.M^baH bearing mutor
will provide sufficient speed and power for your
drill press on general work. For continuous heavy
duty operation a 1 /2 horsepower motor is recommended.
SPEED:

The spindle speeds obtainable with these 4 step pulleys are shown in Fig. 2.

SPINDLE
R.P.M.

DRILL
PRESS

MOTOR
(1750 R.P.M)

5000
2390

1280
610

3970
1730

771

I

MOTOR PULLEY RAISED ONE GROOVE-/

2905

1050

MOTOR PULLEY RAISED TWO GROOVES-'

FIGURE 2

|

For slower speeds use a Multi-Speed Attachment
available from your nearest Sears retail store or mail
order house. Ask for Catalog No. 9A-2338.
LUBRICATION:
The spindle and pulley bearings have been packed
with lubricant and will require no further attention
for the life of the bearing.
Place a few drops of oil occasionally on the pinion
shaft, No. 54. The oil hole is located in the hub
on trie right hand side of the head.
To maintain smoothness of operation and to prevent rust, occasionally apply a small amount of
light cup grease to the quill while in a down position. With quill still fully extended, reach into the
backside of the head and apply grease to the spindle,
below the pulley, and to the upper portion of the
quill.
Occasionally wipe the column, table and base
with an oil soaked rag to prevent rust and maintain
smooth sliding action.
CONTROLS:
The chuck is a key-type and has a capacity of 0-1 /2
inch diameter. It is equipped with a lock collar to
retain it on the spindle. This eliminates the necessity of having collet chucks for such tools that develop side thrust while in operation, such as routers.
The feed stop unit provides a means of presetting
hole depths before drilling or for drilling several
holes to the same depth.
The lock screw, No. 36, when tightened, holds
the feed stop collar, No. 37, in place. The two pieces,
as an assembly, can be moved on the stop rod for
fast positioning by turning the unit a quarter turn
and sliding it up or down to an approximate pr.aifir.ri,
The feed stop adjusting collar, No. 34, can then
be adjusted to the exact depth desired.
CAUTION: The top of the adjusting collar should
never be more than J/s" away from the shoulder of
the feed stop collar after an adjustment has been
made. If the desired adjustment can not be made
within the J/g" allowance, reposition the unit and
adjust the feed stop adjusting collar.
The feed stop rod is a gauge, with 5 inches of
1/16 inch graduations, carrying the feed stop and
lock nut.
The feed handle is used to raise and lower the
chuck 4 inches. It has an automatic spring loaded
return action.
The quill lock handle when tight holds the quill
at any depth of cut for such operations as shaping,
routing, surface grinding, etc. Always release the
quill lock before changing position of quill.
The table lock handle and headstock lock handle
control the barrel locks which grip the column.
When releasing either of these handles do so with
care. Support the part you wish to adjust so that
it will not drop too rapidly causing damage to the
tool.
The feed return adjusting knob controls the spring
tension on the feed lever.
The motor mount has been hinged in order to
make the changing of spindle speeds easier. The
hinge action incorporated in this motor mount will
allow quicker belt changes. To move the belt from
one pulley groove to another, pivot the motor forward and slip the belt into the desired grooves.

ADJUSTMENTS:
The following adjustments may be necessary to
keep your drill press at its most efficient operation.
If the automatic feed return fails to return the
chuck to the top of the stroke or if the return action
becomes sluggish, the tension may be adjusted as
follows; Lock the chuck at the top of its stroke
using the quill lock handle. Hold the feed return
adjusting knob firmly and release the feed return
adjusting knob lock screw, Fig. 1. Turn the adjusting knob counter-clockwise and re-tighten the lock
screw. Release the quill lock handle and run the
chuck down. If spring tension is still not sufficient
repeat the above adjustment until it is.

sive commercial operations are to be performed,
high speed steel drills although more expensive, will
prove to be the better tool as higher operating speeds
are possible plus longer cutting edge life.
The solid center wood bit has a single flute turning around a solid center but carries two spurs.
The fluted bit is an excellent all purpose wood
bit. It has two flutes each terminating in a cutting
edge and spur.
The best bit for high quality machine drilling in
wood is the spur machine bit. It is the stiffest drill,
tracks nicely and produces an exceptionally smooth
hole.
For larger holes, a hole saw is available for either
metal or wood. This bit has a center drill for pilot
and teeth around the outer rim similar to a saw
blade.
Also, for large holes in wood an expansion bit
may be used. When the expansion bit or any hand
wood bit is used in the drill press, the screw point
must have the threads removed from it so that it
will not enter the wood too rapidly. These threads
may be filed off. (See Fig. 3.)
Countersinking in wood may best be accomplished by using the double lip style. It will give
the cleanest cut and will not gum up under continuous operation.
Heel of
Cutting Lip

Length of Cutting lips
must be equot

FIGURE 3
To change the locked position of table lock handle
or headstock lock handle (Fig. 1 ) , remove handle
and rotate table lock, item 67, or headstock lock,
Item 5 1 , 180°. Re-insert and tighten lock handle.
CAUTION: Headstock or table assembly should
be securely supported when changing locked position
of handles.
The Quill Lock Handle, (Fig. 1 ) for greatest ease
of operation should point down when locked. To
change the position of the handle, loosen the set
screw, remove handle from hex head screw and rotate to correct position. Replace handle and tighten
set screw.
Belt tension adjustment is made by loosening
the motor mount lock screws and moving the motor
mount away from the tool. Excessive tension shortens bearing life, causes excessive belt wear and robs
the motor of power. Tension should be just enough
to prevent slippage at normal operating speeds and
feeds.
Tighten pulley set screws after a few hours
operation.

TYPES OF BITS:
A variety of bits are available for use in your drill
press.
For metal drilling the standard twist drill will
prove adequate for the home -work shop. If exten-

FIGURE 4

DRILL SHARPENING:
When grinding twist drills, in order to maintain the
efficiency of the drill, extreme care should be exercised. The dead center of the point must be maintained, that is, the cutting lips must be the same
length, Fig. 4. Also their angle in relation to the
center line of the drill must be equal. The angle
should be approximately 60 degrees, 120 degrees
included, for metal and 35 degrees, 70 degrees included, for wood. The cutting lip should be relieved
gradually behind the cutting edge so that the clearance at the heel is about 1 2 degrees.

OPERATION:

Chuck removal;
If at any time you wish to remove the chuck merely
loosen the chuck holding collar and continue to turn
it. This will force the chuck from the spindle taper.
Do not attempt to drive or wedge the chuck off as
you may damage the spindle or bearings.

For extensive use on woodworking, an auxiliary
table of 3 4 inch plywood will prove its worth in
added work area and the protection from shifting
of your work. Fasten the plywood table to the drill
press table with countersunk screws. This auxiliary
table also provides a good surface for mounting a
shaping fence, pivot pins and other similar units.
It affords protection for the drill press table when
drills break through the work piece.

SAFETY:

When drilling through wood, a piece of scrap
material under the work piece will eliminate splintering and mutilation as the drill point breaks through.
Another method of preserving the surface is to
reverse the work piece when the point of drill breaks
through and finish the hole from opposite side.
For drilling to a definite depth, such as a blind
hole, the feed stop nuts may be set to the desired

The work piece should be held securely on the
table, either by clamps, pins, or a vise, to prevent
its turning with the drill. A drill vise is an inexpensive means of holding many varieties of work
and is readily adaptable for use with cylindrical
work. The drill vise or a V-block should always
be used for cylindrical work. In any case secure your
work piece as it may break drills and fly off the table.

depth by lowering the drill to a mark on the edge
of the work piece corresponding to the depth of
hole desired.
A straight piece clamped to the table, as a guide
or fence, has many uses, as in drilling several holes
the same distance from an edge or as a guide for
grooving, fluting or milling.

PARTS LIST
Key

No. Part No.
1
27415
18413
2
3
18212
4
18414
5
18415
6
27727
7
38617
8
27217
9
18604
10
38632
11
18512
12
18120
*X-18I
13

14

15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32

33

34
35
36
37

*X-1407
27623
38628

1851 1
18410
18429
18422

182 I I

27625
27813
*X-277
38422
27130
38623
**I8I29
*X-413
*X-420
*X-605
27812
27627
27631
38881
27628
27629

PART NAME
Spindle Pulley
Spindle & Pulley Sleeve
Pulley Ball Bearing
Inner Snap Ring
Outer Snap Ring
Panel
Panel Screw
Drill Head Frame
Hand Knob
Quill Lock Sleeve
Quill Lock Screw
-Lock Handle aiuLSei Screw
Set Screw No. 10-24 x %Soc. Head Cone Pt.
Allen Wrench 3/32
Lock Handle
Head Lock Sleeve
Knob Lock Screw
Spindle Collar with Set Screw
Washer-Rubber
Washer
Quill Bearing
Quill
Quill Gasket
Cap Screw "4-20 x 1 J/2 Hex Head
Feed Stop Bracket
Spindle Ass'y.
Chuck
Chuck Key
Hex Nut Jam ^ - 1 6
Hex Nut "4-20
Lock Washer J4 Amer. Std.
Snap Ring
Feed Stop Rod
Feed Stop Adjusting Collar
Spring
Lock Screw
Feed Stop Collar

Key
No.

Part No.

PART NAME

38
*X-170 Set Screw 5/ I 6 - 1 8 x Y2 Soc. Hd. Cone Pt.
39
18513 Pinion Shaft Retaining Screw
40
18421 Washer Fibre
41
27814 Bumper
42
27632 Threaded Stud
43
38790 Motor Support Base
44
*X-417 Hex Nut 5/16-18
45
38460 Motor Mount Ass'y Complete
46
38876 Roll Pin
47
38692 Rod - Motor Support
48
*X-601 Plain Washer 1 I /3 2 I.D. x I I /1 6 O.D.
49
*X-309 Mack. Bolt 57 1 6-18i-LSquare Head
50
X-205 Cap Screw 5 / l b - 1 8 - % Hex. Head
51
38629 Head Lock
52
18916 Feed Handle Knob
53
27626 Feed Handle Rod
54
27310 Hub, Pinion, Spring & Pin Ass'y.
55
18915 Feed Return Spring
56
27617 Pin
57
38631 Quill Lock
58
*X-565 Mach. Screw No. 8-32 x % Rd. Head
59 **X-1467 V-Belt 1/2 x 45 inches long
60
38390 Motor Pulley with Set Screw
61 »X-3609 Set Screw 5 / 1 6 - 1 8 x '/2 Soc. Head
62 'X-1400 Allen Wrench 5/32
63
27219 Table
64
27717 Column Plug
65
38633 Lock Handle
66
38627 Table Lock Sleeve
67
38626 Table Lock
68
27621 Column for Model 1 0 3 . 2 4 5 2 1 only
69
70
71
72

27622
27340
27350
38211
*X-185
27104
27979

Column for Model 1 0 3 . 2 4 5 3 1 only
Base for Model 1 03.2452 1 only
Base for Model 103.24531 only
Base Lock Shoe
Set Screw ^/i~ I 3 x 1 ^ Square Head
Spindle Pulley Ass'y.
Instruction Sheet and Parts List.

For Illustration—See page 6

'Standard hardware items—may be purchased locally.
*Items are regular stock in Sears hardware departments and mail order
houses. May also be ordered as repair parts by part number provided.
This sheet is intended for instruction and repair parts only and is not a packing slip.
The parts shown and listed may include accessories not necessarily part of this tool.

—72 SPINDLE PULLEY
ASS'Y.

45 MOTOR MOUNT ASS'Y.
COMPLETE
INCLUDES ITEMS 41 THRU 49



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