Craftsman 315.11721 Owner`s manual

OWNERS
_NUAL
MODEL NO.
315,11721
!i<i! ¸i i! ii
CAUTION:
Read Rules for
CRRFTS!dRN°
Safe Operation
and Instructions
Carefully
DOUBLE
SAVE THIS
MANUAL
FUTURE
FOR
REFERENCE
INSULATED
lntrodur.tion
Operation
Maintenance
Repair Parts
SEARSi ROEBUCK
Designed exclusively for and sold onty by
AND CO., Dept, 6gsi731A, Sears 'Tower, Chigago,
IL 60684
FULL ONE YEAR WARRANTY
ON CRAFTSMAN
BELT SANDER
If this Craftsman Belt Sander fails to give complete satisfaction
within one year'from th_e
of purchase
RETURN IT TO THE NEAREST SEARS STORE THROUGHOUT THE UNITED STATES and Sears will repair
it, free of charge,
If this belt sander is used for commercial
the date of purchase,
This warranty
state.
gives you specific
or rental purposes this
legal rights,
warranty
applies
for only 90 days from
and you may also have other rights which vary from state to
SEARS, ROEBUCK AND CO,
DEPT. 698/731A
SEARS TOWER
CHICAGO, IL 60684
INTRODUCTION
Your Craftsman 3-Inch Belt Sander is suitable for
coarse, medium and fine sanding of wood, metals,
plastics and other materials.-It is ideal when used for
smoothing
rough
boards,
chamfering,
rounding
edges and many other general sanding applications.
It is ideal for refinishing
large pieces of furniture,
stairs and other large surfaces, its balanced design
makes it easy to use.
IMPORTANT -- Servicing of a tool with double insulation requires extreme care and knowledge of the
system and should be performed only by a qualified
service technician.
For service, return the tool to
your nearest Sears store for repair which will be
done with original factory replacement
parts.
-SWITCH
A trigger switch controls operation of the Sander.
The trigger switch can be locked on for continuous
operation. To lock, putt trigger, press lock button inward, and release trigger. Pull triggei" and release to
stop.
DANGER: Keep hands and fingers away from moving
sanding belt. Any part of body coming in contact
with moving belt could cause serious injury.
DANGER: Do not wear loose clothing
or jewelry
when operating
Sander. They could get caught in
moving parts causing injury. Keep head away from
Sander and sanding area. Hair could get caught in
moving parts and foreign objects could get thrown
away from Sander causing injury. Never use in an explosive atmosphere.
Normal sparking of motor could
ignite fumes.
DOUBLE INSULATION
Double insulation
[s a concept in safety, in electric
power tools, which eliminates the need for the usual
three wire grounded power cord and grounded supply system. Wherever there is electric current in the
tool there are two complete sets of insulation to protect the user. AI exposed metal parts are isolated
from the internat metal motor components
with protecting insulation.
RULES FOR SAFE OPERATION
WARNING -- DO NOT ATTEMPT TO OPERATE UNTIL YOU HAVE READ THOROUGHLY AND UNDERSTAND
COMPLETELY ALL INSTRUCTIONS, RULES, ETC. CONTAINED IN THiS MANUAL. FAILURE TO COMPLY CAN
RESULT IN ACCIDENTSoINVOLVING
FIRE, ELECTRIC SHOCK, OR SERIOUS PERSONAL INJURY. SAVE
OWNEJ_SMANUAI_-AND
RE_IF.W_FREQpENTLY
FOR CONTINUING
SAFE OPERATION, AND INSTRUCTING
iPOSSIBLE THIRD,PAR'_
USJEB._ '
"
READ
ALl, INSTRUCTIONS
1 KNQ_YOU_
POWER TOOL -- Read owner s manual carefully. Learn its ap_f_ti,c:;a_6r_s_'an'd;lir_'i_tations.as_well as the specific potential haz,_rds peculiar to
thins tool,
2, _U_I_AGA_]Nj_T:_ISk_P.utRiCAL
I/y_,,H G[ROUNDED'SURFACES,
ei'_to r enclosures,
SHOCK
BY PREVENTING
For example:
3. KEEP GUARDS IN PLACE and in working
order.
4. KEEP WORK AREA CLEAN. Cluttered
areas and benches
5, AVOID
DANGEROUS
locations
or expose
ENVIRONMENT.
Don't
BODY
Pipes, radiators,
use
power
CONTACT
ranges, refrig-
invite accidents.
tool
in damp
or wet
to rain. Keep work area well lit.
6. KEEP CHILDREN
AWAY. All visitors
area. Do not let visitors
contact
tool
should be kept safe
or extension
cord.
7. STORE IDLE TOOLS, When not in use, tools
locked-up
place -- out of reach of children.
Page 2
should
"
distance
be stored
from
work
in dry', high
or
RULES
FOR SAFE OPERATION(Continued)
8. DON'T FORCE TOOL. It will do the job better and safer at the rate for which it
was designed.
9. USE RIGHT TOOL. Don't force small too! or attachment
to do the job of a heavy
duty tool. Don't use tool for purpose
not intended
- for example
- Don't use
a circular saw for cutting
tree limbs or logs.
10. WEAR PROPER APPAREL.
No loose clothing
or jewelry to get caught in moving
parts. Rubber gloves and footwear
are recommended
when working
outdoors.
Also, wear protective
hair covering
to contain
long hair.
11. USE SAFETY
GLASSES
with all tools.
Also face or dust
mask
if cutting
operation
is dusty.
12. DON'T ABUSE CORD. Never carry toot by cord or yank it to disconnect
from
receptacle.
Keep cord from heat, oit and sharp edges.
!3. SECURE WORK. Use clamps
or a vise to hold work. It's safer than using your
hand and it frees both hands to operate tool.
14. DON'T OVERREACH.
Keep proper footing
and balance
at all times.
15. MAINTAIN
TOOLS WITH CARE. Keep tools sharp at all times, and clean for best
and safest performance.
Follow
instructions
for lubricating
and changing
accessories.
16. DISCONNECT
TOOLS. When not in use, before servicing,
or when changing
attachments,
blades, bits, cutters,
etc. all tools should
be disconnected.
17, REMOVE ADJUSTING
KEYS AND WRENCHES,
Form habit of checking
to see
that keys and adjusting
wrenches
are removed
from tool before turning
it on.
18. AVOID ACCIDENTAL
STARTING.
Don't carry plugged-in
tools
with finger on
switch.
Be sure switch
is off when plugging
in.
19. OUTDOOR
USE EXTENSION
CORDS. When tool is used outdoors,
use only
extension
cords suitable
for use outdoors.
Outdoor
approved
cords are marked
with the suffix W-A, for example
m SJTW-A or SJOW-A.
20.
21.
NEVER USE THIS OR ANY POWER SANDER FOR WET SANDING.
Failure
comply
can result in electrical
shock causing
serious
injury or worse.
KEEP HANDS AWAY FROM SANDING
AREA.
to
22.
NEVER USE IN AN EXPLOSIVE
ATMOSPHERE.
Normal sparking
of the motor
could ignite fumes,
23. INSPECT TOOL CORDS PERIODICALLY
and if damaged,
have repaired at your
nearest Sears Repair Center.
24. INSPECT EXTENSION
CORDS PERIODICALLY
and replace if damaged.
25. KEEP HANDLES
DRY, CLEAN, AND FREE FROM OIL AND GREASE. Always
use a clean cloth when cleaning.
Never use brake fluid, gasoline,
or any strong
solvents
to clean your tool.
26. STAY ALERT. Watch what you are doing and use common
sense. Do not operate tool when you are tired.
27. CHECK
DAMAGED
PARTS.
Before
further
use of the tool,
a guard
or
other 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 guard or other part that is damaged
should be properly
repaired or replaced
by an authorized
service center unless
indicated
elsewhere
in this instruction
manual.
28. DO NOT USE TOOL IF SWITCH DOES NOT TURN IT ON AND OFF. Have defective switches
replaced
by authorized
service center.
29,
30.
Inspect for and remove all nails from lumber before
DRUGS, ALCOHOL,
MEDICATION.
Do not operate
uence of drugs, alcohol,
or any medication.
31. SAVE THESE INSTRUCTIONS.
Page 3
sanding.
tool while
under
the
infl-
OPERATION
Fig. I'"
Fig, 2
TRACKING
Fig, 3
PREPARING FOR OPERATION
For ease of operation your Sander has a front handle and a rear
handle. These handles allow two-hand operation which aids in
maintaining
control
and keeping
sanding area level with
workpiece. When operating your Sander hold the front handle
with your left hand and the rear handle with your right hand as
shown in Fig. 1.
Selecting the correct size and type sanding belt is an extremely important step in achieving a high quality sanded finish.
Aluminum
oxide, silicone
carbide,
and other
synthetic
abrasives are best for power sanding.
In general, coarse grit wilt remove the most material and finer
grit will produce best finish in all sanding operations. The condition of the surface to be sanded witt determine which grit
belt will do the job. If the surface is rough, start with a coarse
grit belt sanding until surface is uniform. Medium grit belt may
then be used to remove scratches teft by the coarser belt and
finer grit belt used for finishing
of the surface. Always continue sanding with each grit belt until surface is uniform.
INSTALLING AND ADJUSTING SANDING BELT
Disconnect sander from power supply.
See Figure 2. Release tension on belt by ;_ushing the front
pulley squarely against the top or edge of workbench. When
the pulley is pushed back it will lock in that position allowing
slack in the belt so it can be removed. Install new belt making
sure arrow on inside of belt is pointing in the direction of rotation which is clockwise when looking into open side of sander.
To put tension on the belt, insert a screwdriver between the
idler pulley support bracket and the idler pulley support as illustrated and pry toward front of sander.
To adjust sanding belt, connect sander to power supply. Place
sander in an upside down position as illustrated (See Fig. 3),
pull switch trigger and release immediately
while observing
tracking of sanding belt. If sanding belt runs outward turn
tracking screw clockwise and counterclockwise
if belt runs inward. This should be done until you are sure belt will not come
in contact with striker bar. When you are sure belt wilt not rub
against striker bar start sander and fine adjust the tracking
screw until belt stabilizes. When correctly adjusted, the outer
edge of the belt will be even with the outer edge of sanding
shoe pad (Key 28, page 11). Belt life will be increased appreciably if a few seconds are spent adjusting the belt tracking.
NOTE: Idler pulley rubbing housing when in the released position without sandpaper is not harmful to the operation of the
tool. The sanding belt, when assembled, wit not allow pulley
to project as far.
TO OPERATE
Clamp or otherwise secure the work to prevent it moving under
the Sander. DANGER: Unsecured work could be thrown back
toward operator causing injury. With Sander off work, press
the trigger switch and when the motor reaches its maximum
speed, lower the Sander on the work with a slight forward motion. Using the rear handle to control the Sander and the front
handle only to guide it, move it slowly over the work. Allowing
the Sander to remain in one place will result in an uneven surface. The Sander was designed to provide the proper weight on
the sand belt and extra pressure will only result in uneven
work, slow cutting from slow belt speed, clogged belts and
possible motor bum-out.
Use the proper belt when heavy cutting is desired, not heavy
pressure. The importance of this cannot be over-emphasized,
the weight has been built into the tool to give the most efficient pressure at the proper location.
Page 4
MAINTENANCE
WHEN
SERVICING
USE ONLY
IDENTICAL
BRUSH
REPLACEMENT
PARTS.
REPLACEMENT
Disconnect Sander from power supply before servic.
ing.
1, Remove brush caps (A) with screwdriver,
4.
,
Remove fibre Washers (B). The washers
are
designed to fit tightly in the brush holders to
prevent twisting of brush springs when replacing
brush caps,
3, Remove brushes
BRUSH --!
Fig. 4.
See Fig.
(C),
4: Reassemble brush with spring into tool making
sure that the curvature of the brush matches
curvature of the motor and thatthe brush moves
freely in the brush holder.
5. Replace fibre washers
and brush caps.
LUBRICATION
All bearings in this tool are lubricated with a sufficient amount of high grade lubricant for the life of
the unit
under
normal
operating
conditions.
therefore, no further lubrication
is required.
TIMING
BELT REPLACEMENT
(See Figure 5)
Disconnect sander from power supply before servicing.
1. Remove two screws, Key No. 53 (See parts list,
page eleven) and then remove belt cover Key No.
43,
2. Force old belt off small pulley with a screwdriver
and remove it from large pulley:
3. Install new belt over large pulley first, making
sure teeth on belt mesh with teeth on pulley.
4. Press the belt onto the small
Fig. 5
5. Reassemble
Page 5
pulley.
belt cover and screws;
GENERAL
Only the parts shown on parts list, page eleven, are
Intended to be repaired or replaced by the customer.
All other parts represent an important
part of the
double insulation system and should be serviced only by a qualified service technician.
Avoid using solvents when cleaning plastic parts.
Most piasttcs are susceptible
to various types of
commercial
solvents and may be damaged by their
use. Use clean cloths to remove dirt, carbon dust,
etc. WARNING: DO NOT AT ANY TIME LET BRAKE
FLUIDS, GASOLINE,
PENETRATING
OILS, ETC.
COME IN CONTACT WITH PLASTIC PARTS. THEY
CONTAIN
CHEMICALS
THAT
CAN
DAMAGE
AND/OR
DESTROY PLASTIC.
EXTENSION
CORDS
The use of any extension cord wilt cause some loss
of power. To keep the loss to a minimum and to prevent tool overheating, follow the recommended cord
sizes on the chart at right. When tool is used outdoors, use only extension cords suitable for outdoor
use and so marked. Extension cords are available at
Sears Catalog Order or Retail Stores.
CAUTION
When electric tools are used on fiberglass
boats,
sports cars, etc., it has been found that they are subject to accelerated
wear and'_ble
premature
failure, as the fiberglass
chips a_n_rfndings
are
highly abrasive to bearings, brushes, commutator,
etc. Consequently,
it is not recommended
that this
tool be used for extended work on any fiberglass
material. During any use on fiberglass it is extremely
_mportant that the tool is cleaned frequently by blowing with an air jet. ALWAYS WEAR SAFETY
GLASSES OR EYE SHIELDS BEFORE BEGINNING
POWER TOOL OPERATION.
Extension Cord Length
25-50 Feet
50-100 Feet
Wire Size A.W.G.
16
14
WARNING: CHECK EXTENSION CORDS BEFORE
EACH USE. IF DAMAGED, REPLACE IMMEDIATELY.
NEVER USE TOOL WITH A DAMAG ED EXTENSION
CORD, SINCE TOUCHING
THE DAMAGED AREA
COULD CAUSE ELECTRICAL SHOCK RESULTING
IN SERIOUS INJURY.
The operation of any sander can result in foreign ob.
jects being thrown into the eyes, which can result in
Severe eye damage. Always wear safety glasses or
eye shields before commencing power tool opera,
ti0n. We recommend Wide Vision Safety Mask for
use over spectacles, or standard safety glasses...
available at Sears Catalog Order or Retail Stores.
THE FOLLOWING RECOMMENDED
ACCESSORIES ARE CURRENT AND
WERE AVAILABLE AT THE TIME THIS MANUAL WAS PRINTED,
CORD LOCK
Cot, No, 9 2595
ASSORTED SANDING
BELTS
Cat. No. 9 22304--X.Fine
Cat. No; 9 22301--Fine
Cat, No. _922302--Medium
Cat. No. _922303--Coarse
Cat. No._9 22305--X-Coarse
CARRYING CASE
Cat, No. 9 1475
DUSTLESS SANDING ATTACHMENT
Car, No, 9 11765
CAUTION:
The use of attachments or ecceuortet
Page 6
not listed a_e
n_lht
be kazerdou=.
NOTES
Page 7
NOTES
Page 8
NOTES
Page 9
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CRRFTSMRN
3 INCH
BELT SANDER
OWNERS
MANUAL
DOUBLE INSULATED
SERVICE
Now that you have purchased
your Belt Sander,
should a need ever exist for repair parts or service,
simple contact any Sears Service Center and most
Sears, Roebuck and Co. stores. Be sure to provide
all pertinent facts when you cal! or visit.
MODEL NO.
The model number of your Belt Sander will be found
on the plate attached
to the idler pulley support
bracket,
315,1172I
WHEN
ORDERING
REPAIR PARTS,
T H E FOLLOWt NG 1N FORMAT IO N:
HOW TO ORDER
REPAIR PARTS
•
PART
"
MODEL
NUMBER
NUMBER
315.11721
ALWAYS
•
PART
DESCRIPTION
•
NAME
OF ITEM
3" Belt Sander
All parts listed may be ordered from
Center and most Sears stores.
any Seers Service
tiJrj,I
II!, lr IIifliiitlifii
If the parts you need are not stocked
locally,
your order
will be electronically
transmitted
to a Sears Repair
Parts Distribution
Center
for handling,
612547
-072
OWNR8 MANU
GIVE
I
!
SEARS, ROEBUCK
AND CO., Dept. 698/731A,
Sears Tower, Chicago,
IL 60684