Craftsman 315.22420 Datasheet

CAREFULLY READ THE INSTRUCTIONS PROVIDED, OBSERVE THE SIMPLE SAFETY
PRECAUTIONS,
AND YOU WILL HAVE MANY HOURS OF SATISFACTORY USE FROM
YOUR
NEW CRAFTSMAN TOOL.
ASSEMBLY, OPERATING INSTRUCTIONS
AND PARTS LIST FOR
3 INCH BELT SANDER
MODEL NUMBER 315. 22420
~---------- ---------- --GUARANTEE -------- -------------- --~
CRAFTSMAN PORTABLE ELECTRIC TOOLS ARE UNCONDITIONALLY GUARANTEED FOR
ONE YEAR TO GIVE COMPLETE SATISFACTION OR RETURN FOR FREE REPLACEMENT.
THIS GUARANTEE
SERVICE IS AVAILABLE BY SIMPLY RETURNING THE TOOL TO ANY
SEARS STORE .
PRINTED IN U .S .A . 1
SEARS, ROEBUCK AND CO . and SIMPSONS-SEARS LTD .
Designe d ex clus iv ely for and s old only by
SEARS, ROEBUCK AND CO .- Chicago, Illino is 60607 U.S.A.
and SIMPSONS- SEARS LIMITED-Toronto
F O RM No . EN-507
" .. .,

I
CRAFTSMAN 3 INCH BELT SA~ I DER-MODEL NUMBER 315.22420
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Key
No. Pctrt No.
1 1-703428-10
2 3-622872-00
3 2-622827-00
4 2-614251-02
5 2-607776-02
6 1-622140-31
7 3-622899-03
8 2-622875-00
9 1-622865-01
10 2-622828-00
11 1-622923-00
12 1-621721-02
13 1-614661- 02
14 4-61s806-04
15 1-930687-06
16 2-623436-01
17 2-730373-00
18 2-730352- 01
19 1-614008-01
20 1-623019-01
21 1-614210-01
22 1-621221- 01
23 1-614210-02
24 1-614294- 01
25 3-615810-01
26 t -622813-00
27 2-622823- 00
28 2-622822- 00
29 1-622814-00
30 1-737983-03
31 1-940038-09
32 2-615814-01
33 1-621463-02
34 3-614292-714
35 1-703488-806
ll
CRAFTSMAN 3 INCH BELT SANDER-MODEL NUMBER 315.22420
WHEN ORDERING REPAIR PARTS, A LWAYS GIVE THE FOLLO WI NG INFORMAT I ON :
1. THE PART NUMBER ~3. THE MODEL N U MBER ~ 315 . 22420
2. THE PART NAME 4. THE NAME OF ITEM-3 '' BELT SANDER
DO NOT USE KEY NOS. WHEN ORDERING PAIR PARTS. ALWAYS USE PART NUMBERS.
Description
*Screw (8- 32 x ¥a Fl. Hd .) .
Belt Guard
Timing Belt
Drive Pulley
Driv en Pulley . .
Screw (8-32 x ¥a Fl. Hd.)
Gear Ho using Co ve r ( In c l. 1 K ey No. 9)
Ga sket - Gear Case Co ver
Flange Bearing
A dju s ting Screw
S
pring
Wa s her
*Screw ( 8- 32 x 3/.t Fl. Hd.)
Housing (Inclu
des 1 ea . K ey No . 9,
'K ey Nos. 55 & 64) .
* Set S crew (8-32, x 14 He x Soc. Headles s)
Brush Hol de r .
Br
ush Tu be
Brush Ass embl y
Bru sh Ca p
Bea ring
Pl ug
Was her .
Boll Be ar ing
Was her .
Washer I nsulation
Field Core
Strike r Ba r
Pod Ba ck ing
Sanding Sh oe Pod
Pla
te
Screw (8-32 x ¥a P an Hd.)
Screw (8- 32 x 1 -1/4 Fil. H d.)
A rmatu re
Lo adi ng Spring
Mo t or Housing Cover
Screw (8- 32 x 3 ova l h d.)
PARtS LIST
Quen. I
2
1
1
1
1
8
1
.1
2
1
1
1 i
1
1
2
2
2
2
2
1
1
2
1
1
1
1
1
1
1
2
2
1
1
1
1
""
Key
No .
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
Pctrt No.
1-703488-807
1-622862-00
1-622854-00
1-622853-00
1-622805-01
2-622804-02
2-622840-00
3-622835-00
1-622832-01
1-622922-00
3-622831-00
2-615809- 01
1-622206-06
2-616452-03
1-620389-03
2-614291- 01
• *
1-706239-813
1-622205-05
1-614287-01
1-706875-00
57 2-622897- 01
58 1-622140-31
59 3-615805-712
62 1-622286-01
63 2-616276- 01
64 1-714043-03
65 1- 706382 -805
66 1-706239-807
67 3-622817-00
68 2-614289- 01
69 2-613651- 01
70 1-930993- 01
EN 507
Description
Screw (8- 32 x 7I 16 oval hd .)
S haft end W asher
Cuppe d Wa sh er
~
Fe lt W as h er . . . . .
Si ee ve B ear i ng (Inc l. Wi th Key No. 41)
Id ler Pul ley (Includes Key No. 40 )
Id ler Pulley Sh aft .
Idler Pu ll ey Supp or t
Spiral Pin
Spr ing . . . .
Idl er Pulley S up por t Brock et
Namep late
Nut
Hi- Pro Key
Retaini ng Ring
Pulley . . .
Sanding Belt (3" x 2 1 ")
1 Th ru st Washer
Thrust W as her
Sleeve Be arin g (Incl. Wit h Key No. 14 )
Grou
nd ing Ad a ~t e r
(N ot Suppli ed With Ca nadian Tools)
Co rd
Sc rew ( 8- 32 x ¥a Fi l. Hd.)
H andle Cover
Insul ating Tub ing
Switch
Flange B ear ing (Inc l. Wit h Key No. 14 )
Washer . ~-·
Thrust Washer
Shaft
Gear and Shaft
Bend Rel ief
Screw (6-32 x 5/16 Pan. Hd. T. C.)
Instruction Sheet
* Standard Hardware Item -May Be Purchased Locally.
•
'Sanding Belts in Assorted Grits for Sanding Both Wood and Metal May be Obt ain•
From Your Nurest Sears Retail or Cahllog Ord er Store.
~· 3
~ ..1 ·~- ·- - - _j ... .
.1! 1\
Quen.
2
1
2
3
2
1
1
1
1
1
1
1
1
1
1
1
3
2
1
1
1
1
3
1
1
1
1
2
1
1
1
1
1
jl
i
j
!
I.
I'
u
·I
i·
J

CRAFTSMAN 3 INCH BELT SANDER-MODEL NUMBER 315.22420
CUSTOMER DO'S AND DON'TS .
1. DO be sure that the volt ag e of t he power supply agrees
wi th the nome pla te marking on the sande r.
2. DO be sure tool is properly grounded . (See "G ro un d-
ing ").
3. DO repla ce both br ush es when either is worn to about
1/.i '' in length.
4. DO keep good sanding beit on tool. A wo rnout be lt will
not
produce satisfac tory re sults .
5. DO keep motor air ven ts and tracking mechanism
clean. Sanding d ust may be blown o ut with on air jet.
6. DO keep drive belt and sprockets clean and fr ee from
g reese and oi I.
7.· DO lubr icate Sander according to instruct ions. (See
"Lu br ication ").
CAUTION : When Electric Tools are used on fi bergla ss
b oots, sports c ar s, etc., it has been found that they are
subject to ac ce lerated wear and possible prema ture fail-
ure, as the fibergla ss c hips and gr indings are highly abra-
sive to Bearings, Brushes, Commutat or, etc . Cons equently
it is not reco mmended that this tool be used for continu-
ous production work on any fiberg lass mateno l. During
cny use on fi bergla ss it is extremel y important that the
tool is cleo~.s!... f !:!!gue ntly ~ blowing_with on air ie_t,. ,_ _
CAUTION
GROUNDING- Th is tool is e quipp ed wi th on Un-
derwriters' Laborator ies approved 3 prong pl ug
for your safety . If your ou tlet is a grou:1ded 3-
covity type, your tool will be grounded auto-
mat ically.
llt•._!_Df A C .. t IJ~ •
Since ma ny
r ecep ta cle box ~
es in pr esent
cons tru c-
tion will n ot
hove 3 - cavity
re
cep tacles, on
*ad a pt e r is
packed with
this too
l. Make
MAK E S URE BOX IS GROUNOEO Sure grounding
lead is fi rmly
attached to a grounded receptacle box as shown
ab ove, bef ore a tt emp ting to ope rate tool.
Ex
ten sion cords should also be 3-wire.
.__ _____ *( Not used in Canada)
EXTENSION CORDS- The u se of any Exten sion C ord will
cause some l oss of power . To keep thi s to a m inimum and
to pr even t over heat ing and motor burn -out, u se t he table
bel ow to dete rmine the MINIMUM wire size (A.W .G.)
Extension C
ord . Cor ds should be 3-wire gro un ded.
Extension Cord
Length
25 - 50 Feet
50 - 75 Feet
75-100 Feet
1 00 -2 00 Feet
Wire Size A.W.G.
16
14
12
10
1. DON'T l eave the power cord connected to the power
supp ly when changing belts or doing any maintenance
work on tool.
2. DON'T use two wire extension cord.
3. DON'T
0\e' ood tool so t ha t it slows down to the point
of ov er re:: r ng.
4. DON'T use Sander without adjusting belt tra cking me-
chan ism.
5. DON'T :l c~ the tool up by t he power cord.
6. DON 'T , e·< t he power cord to remove the plug from
the sacker .
7. DO N'T :::; ~g 0r cover air ven t-; to keep dust from fly-
ing.
ve-·s must be kept open to keep motor cooi.
SWITCH- - ~e Tr i gger switch controls "O N-OFF" op era -
ti on of tf-> s Sc"'lder. This tr igger switch may be locked in
the "ON ::>es fon by dep r essing the lock button when
switch is - ,.., - ~e " ON" positio n. Further tr i gge r depression
di sengage s oc< ng mechan ism.
BRUSH REPLACEMENT
IMPORT
ANT- ( See Fig. 1) Be sure power cord is discon-
nected from power supply. Periodically check the bru shes
~ ~ and replace both brush~ when eit~er is ~o rn
t50bout lh inch in l eng t11."1o check length of br USF.es
they must be removed from tool (see ins truc tio ns below):
Repl acemen t of these relatively i nexpensive p ort s, wh en
necessary, will keep your tool operating more efficiently
and prolong t he Iife of the moto r.
R eplace ment of worn-out brushes is cons idered normal operating
maintenance and is not therefore covered by guarantee .
To repla ce carbon bru sh es (Key No. 18) , unscrew br ush
cop (Key No. 19) and rem ove old bru sh and spring. Re-
place both bru ::;hes making su r e, whe n_inser ting , t h~ t cur -
vature of bru sh matches c ur vature of the surface of the
mo tor to which it is mated. Ma ke sure that the brushes
move fre ely in the holder.
Pag e 4

CRAFTSMAN 3 INCH BELT SANDER-MODEL NUMBER 315.22420
FOR YOUR SAFETY, ALWAYS WEAR SAFETY GLASSES WHEN USING YOUR CRAFTSMAN BELT SANDER
THE OPERATION OF ANY POWER TOOL CAN RESULT IN
FOREIGN OBJECTS BEING THROWN INTO THE EYES, WHICH
CAN RESULT IN SEV~RE EYE DAMAGE. ALWAYS WEAR
SAFETY GLASSES OR EYE SHIELDS BEFORE COMMENCING
POWER TOOL OPERATION. WE RECOMMEND WIDE VISION
SAFETY MASK FOR USE OVER SPECTACLES, OR STANDARD
SAFETY GLASSES .. . AVAILABLE AT SEARS RETAIL OR
CATALOG STORES .
TO SAND-Clomp or otherwise secure the work to pre-
v ent it moving under the Sander. With Sander off work ,
pull
the switch to the on position and when the mot or
reaches its maximum speed, lower the Sander on the work
with a slight forward motion .. Using the main handle to
control the Sander and the front handle only to guide it,
move it slowly
over the work. Allowing the Sander to re-
ma in in one place will result in on uneven surface. The
Sander was designed to provide the proper weight on the
sand belt and extra pressure will only result in une ven
work , sl ow cutting from slow belt speed, clogged belts an a
poss ible motor burr.-out.
Use the proper belt when heavy cutting is desired , not
heavy pressure. The importance of this cannot be over-
~~;:!.~..!. ~•• "ai~l11 I l(f!;:.tx_r.-be+ft- into- the ~~
give the mo st eff ic ient pressure at the proper location.
!\
LUBRICATION- (See Fig. 2) Before beg innin g op eration
and after fo ur (4) hours of continuous use or after ~ight
( 8) hours of intermittent use , th is Soncer should be , lub-
ricated with good qualit y *machin e oil. Remov e the flat
head screw and wesher marked (Oil) fr om th e fro nt pul!ey
shaft and put a few drops of oil in the screw hole.
• This oil can be purchased from your local Sears Retail Store . or l
Catalog
Order House. : - - ~
Fig. 2
Step 3 ig. 3
CHANGING BELTS-(See Fig. 3) Disconnect the power
supply cord from the receptacle before changing belts.
Step 1- Loosen belt by pushing the front pulLey squarely
.0~ 101- i ru;t ..., tbe • op>O ' eds: _ ~'J.::k~_.:: ,e.•! ~ b - ~ J: . t:: - _o::.....d.b--',""
1
~ ,....,......., ......,...
· is pu_ •. ed bock it will lock in that position allowing slack
in the belt so it may be easily remo ved.
Step 2 -lnstoll new belt, making sure that arrow on in-
side of be lt is pointing in the direction of ro tati on which
is clock-wise when looking into open side of sander.
Step 3-To put tension on the belt strike the fro nt pulley
on
the edge of the workbench or table as illustrated or
place piece of wood over pulley support and strike with
mallet or press dow nward with palm of hand. Adjust the
belt for c orrect ru nning before · proceeding to -sand.
, ..,e . Fig .4
.. . .... ·.
BELT ADJUSTMENT-(See Fig. 4) With tool running,
turn thumb screw located on the left side of the sander
until the sanding belt runs even with the edge of the
shoe.
Page 5

MODEL NUMBER 3~!t22420
The Model Number wi II be found on a ~k.it . e attached to the side of the
Sander. Always ment ion the Model Number in all correspondence re-
garding the CRAFTSMAN 3 INCH Bt.LT SANDER or when ordering re-
pair parts . lt: ~
- '>
All parts I isted here in may · be ord r>;l.! d through SEARS, ROEBUCK
AND CO or SIMP SON S-SEARS Ll fil tTED. When ordering parts by
mai I from the cata log o rder house which serves the territory in which
you live, selling prrces ·will be furnish er j on request or parts will be
shipped ( pre va ili ng prices and yot. will be bi ll ed accordingly.
WHEN ORDERI G REPAIR PARTS, ALWAYS GIVE THE FOLLOW-
ING INFORM AT ION AS S-r.iOWN IN THIS LIST:
1. The PART NUMBER
2.
The PART NAME
~. Th e , YI OD,EL NUM BER- 315.22420
4. Tile · ~ ,.4. ME of it em- 3" BELT SANDER
.------- COAST TO c o: \ST N · TION-WIDE--- -- -----.
S£1Yh:it FRO Nt ~ EARS ·
FOR YOUR CRAFTSMAN l" RELT SAN-DER
SEARS, ROEBUCK AND CO . and
SIMPSC !- JS-SEARS L MITED in Canada
back U~ 1 your i nve Stment with quick,
exper i mechan ica l serv i ce and genuine
CRAFTSMAN rep l acement parts .
call on us to protect your investment in
this fine pi ece of equipment.
REPAIR SERVICE AND PARTS-All fine tools, on ~co s io n, ma y require service or the replacement of parts
due to wear from normal use. To prolong the life of yo ur tool when repairs are needed, call on your nearest
Sears Catalog Order or Retail Store. Please .don't risk-possible additional cost or damage to the tool through
inexperienced repairs. Scars Servicemen ore factor y trained.
WARNING: Disassembly of this tool con result in dangerous electrical hazard if any leads (wires) are pinched
against metal surfaces or if grounding connection is not secure when tool is reassembled.
SEARS, ROEBUCK AND CO.-Chicago, Illinois 60607 U.S.A and SiMPSONS-SEARS LIMITED- Toronto