Bosch 1656 User Manual

BM 1619X00905 3-05 3/24/05 11:00 PM Page 1
!1619X00905!
IMPORTANT: IMPORTANT : IMPORTANTE:
Read Before Using Lire avant usage Leer antes de usar
Operating/Safety Instructions Consignes de fonctionnement/sécurité
Instrucciones de funcionamiento y seguridad
1656
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BM 1619X00905 3-05 3/24/05 11:00 PM Page 2
Power Tool Safety Rules
R
WARNING
!
ead and understand all instructions.Failure to follow all instructions listed
b
elow, may result in electric shock, fire and/or serious personal injury.
SAVE THESE INSTRUCTIONS
Work Area
Keep your work area clean and well lit.
Cluttered benches and dark areas invite accidents.
Do not operate power tools in explosive atmospheres, such as in the presence of flammable liquids, gases, or dust.
tools create sparks which may ignite the dust or fumes.
Keep by-standers, children, and visitors away while operating a power tool.
Distractions can cause you to lose control.
Power
Electrical Safety
Double Insulated tools are equipped with a polarized plug (one blade is wider than the other.) This plug will fit in a polarized outlet only one way. If the plug does not fit fully in the outlet, reverse the plug. If it still does not fit, contact a qualified electrician to install a polarized outlet. Do not change the plug in any way. Double Insulation
eliminates the need for the three wire grounded power cord and grounded power supply system.
certain the outlet voltage supplied is within the voltage marked on the nameplate. Do not use “AC only” rated tools with a DC power supply.
Avoid body contact with grounded surfaces such as pipes, radiators, ranges and refrigerators.
of electric shock if your body is grounded. If operating the power tool in damp locations is unavoidable, a Ground Fault Circuit Interrupter must be used to supply the power to your tool. Electrician’s rubber gloves and footwear will further enhance your personal safety.
Don't expose power tools to rain or wet conditions.
increase the risk of electric shock.
Do not abuse the cord. Never use the cord to carry the tools or pull the plug from an outlet. Keep cord away from heat, oil, sharp edges or moving parts. Replace damaged cords immediately.
the risk of electric shock.
Before plugging in the tool, be
There is an increased risk
Water entering a power tool will
Damaged cords increase
When operating a power tool outside, use an outdoor extension cord marked "W-A" or "W."
and reduce the risk of electric shock. Refer to “Recommended sizes of Extension Cords” in the Accessory section of this manual.
These cords are rated for outdoor use
Personal Safety
Stay alert, watch what you are doing and use common sense when operating a power tool. Do not use tool while tired or under the influence of drugs, alcohol, or medication.
operating power tools may result in serious personal injury.
Dress properly. Do not wear loose clothing or jewelry. Contain long hair. Keep your hair, clothing, and gloves away from moving parts. Loose clothes, jewelry, or long hair can be caught in moving parts.
Keep handles dry, clean and free from oil and grease.
Avoid accidental starting. Be sure switch is “OFF” before plugging in.
your finger on the switch or plugging in tools that have the switch “ON” invites accidents.
Remove adjusting keys or wrenches before turning the tool “ON”.
is left attached to a rotating part of the tool may result in personal injury.
Do not overreach. Keep proper footing and balance at all times.
balance enables better control of the tool in unexpected situations.
Use safety equipment. Always wear eye protection.
hard hat, or hearing protection must be used for appropriate conditions.
A moment of inattention while
Carrying tools with
A wrench or a key that
Proper footing and
Dust mask, non-skid safety shoes,
Tool Use and Care
Use clamps or other practical way to secure and support the workpiece to a stable platform.
against your body is unstable and may lead to loss of control.
Holding the work by hand or
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Do not force tool. Use the correct tool for your application.
job better and safer at the rate for which it is designed.
Do not use tool if switch does not turn it “ON” or “OFF”.
controlled with the switch is dangerous and must be repaired.
Disconnect the plug from the power source before making any adjustments, changing accessories, or storing the tool.
preventive safety measures reduce the risk of starting the tool accidentally.
Store idle tools out of reach of children and other untrained persons.
dangerous in the hands of untrained users.
Maintain tools with care. Keep cutting tools sharp and clean.
with sharp cutting edges are less likely to bind and are easier to control. Any alteration or modification is a misuse and may result in a dangerous condition.
Check for misalignment or binding of moving parts, breakage of parts, and any other condition that may affect the tools
The correct tool will do the
Any tool that cannot be
Such
Tools are
Properly maintained tools,
operation. If damaged, have the tool serviced before using.
caused by poorly maintained tools. Develop a periodic maintenance schedule for your tool.
Use only accessories that are recom­mended by the manufacturer for your model.
one tool, may become hazardous when used on another tool.
Accessories that may be suitable for
Many accidents are
Service
Tool service must be performed only by qualified repair personnel.
maintenance performed by unqualified personnel could result in a risk of injury. For example: internal wires may be misplaced or pinched, safety guard return springs may be improperly mounted.
When servicing a tool, use only identical replacement parts. Follow instructions in the Maintenance section of this manual.
Use of unauthorized parts or failure to follow Maintenance Instructions may create a risk of electric shock or injury. Certain cleaning agents such as gasoline, carbon tetrachloride, ammonia, etc. may damage plastic parts.
Service or
Safety Rules for Circular Saws
!
DANGER
your second hand on auxiliary handle, or motor housing.
saw, they cannot be cut by the blade.
saw firmly to prevent loss of control. Figures in this manual illustrate typical hand support of the saw. NEVER place your hand behind the saw blade since kickback could cause the saw to jump backwards over your hand.
Keep your body positioned to either side of the saw blade, but not in line with the saw blade.
KICKBACK could cause the saw to jump backwards. (See “Causes and Operator Prevention of Kickback.”)
Do not reach underneath the work. The guard cannot protect you from the blade below the work.
when blade is moving.
Keep hands away from cutting area and blade. Keep
If both hands are holding the
Hold the
Do not attempt to remove cut material
Check lower guard for proper closing before each use. Do not operate saw if lower guard does not move freely and close instantly. Never clamp or tie the lower guard into the open position.
lower guard may be bent. Raise the lower guard only with the Retracting Handle or Lower Guard Lift Lever and make sure it moves freely and does not touch the blade or any other part, in all angles and depths of cut.
Check the operation of the lower guard spring. If the guard and the spring are not operating properly, they must be serviced before use.
sluggishly due to damaged parts, gummy deposits, or a buildup of debris.
If saw is accidentally dropped,
Lower guard may operate
Disconnect the plug from power source. Periodically remove the blade, clean the upper, lower guards and the hub area with kerosene and wipe it dry, or blow it clean with compressed air.
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Lower guard should be retracted manually only for special cuts such as “Pocket Cuts” and “Compound Cuts”. Raise lower guard by Retracting Handle or Lower Guard Lift Lever.
As soon as blade enters the material,
l
ower guard must be released. For all other sawing, the lower guard should operate automatically.
Always observe that the lower guard is covering the blade before placing saw down on bench or floor.
blade will cause the saw to walk backwards, cutting whatever is in its path. Be aware of the time it takes for the blade to stop after switch is released.
NEVER hold piece being cut in your hands or across your leg.
the work properly to minimize body exposure, blade binding, or loss of control.
Hold tool by the insulated gripping surfaces when performing an operation where the cutting tool may contact hidden wiring or it own cord.
make exposed metal parts of the tool “live” and shock the operator.
When ripping always use a rip fence or straight edge guide.
of cut and reduces the chance for blade binding.
Always use blades with correct size and shape (diamond vs. round) arbor holes.
Blades that do not match the mounting hardware of the saw will run eccentrically, causing loss of control and will not allow proper vari-torque engagement.
Never use damaged or incorrect blade washers or bolts.
were specially designed for your saw, for optimum performance and safety of operation.
Contact with a "live" wire will also
An unprotected, coasting
It is important to support
This improves accuracy
The blade washers and bolt
The blade washers and the bolt on your saw have been designed to work as a “VARI­TORQUE CLUTCH”. Understand the operation and settings of the VARI-TORQUE CLUTCH, because the proper setting of the CLUTCH, combined with firm handling of the saw will allow you to control KICKBACK.
Do not run the saw while carrying it at your side. Lower guard may be opened by a contact with your clothing.
with the spinning saw blade could result in serious personal injury.
Depending upon use, the switch may not last the life of the saw. If the switch should fail in the “OFF” position, the saw may not
Accidental contact
start. If it should fail while the saw is running, the saw may not shut off.
occurs, unplug the saw immediately and do not use until repaired.
This circular saw should not be mounted to a table and converted to a table saw.
saws are not designed or intended to be used as table saws.
CAUSES AND OPERATOR PREVENTION
OF KICKBACK:
If either
Circular
Kickback is a sudden reaction to a pinched, bound or misaligned saw blade, causing an uncontrolled saw to lift up and out of the workpiece toward the operator.
KICKBACK
VARI-TORQUE
CLUTCH
When the blade is pinched or bound tightly by the kerf closing down, the blade stalls and the motor reaction drives the unit rapidly back toward the operator.
If the blade becomes twisted or misaligned in the cut, the teeth at the back edge of the blade can dig into the top surface of the wood causing the blade to climb out of the kerf and jump back toward the operator.
Kickback is the result of tool misuse and/or incorrect operating procedures or conditions and can be avoided by taking proper precautions as given below:
Maintain a firm grip with both hands on the saw and position your body and arm to allow you to resist KICKBACK forces.
KICKBACK forces can be controlled by the operator, if proper precautions are taken.
When blade is binding, or when interrupting a cut for any reason, release the trigger and hold the saw motionless in the material until the blade comes to a complete stop. Never
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attempt to remove the saw from the work or pull the saw backward while the blade is in motion or KICKBACK may occur.
and take corrective action to eliminate the cause of blade binding.
Wet lumber, green lumber or
Investigate
pressure treated lumber require special attention during cutting operation to prevent KICKBACK. Avoid cutting nails. Inspect for and remove all nails from lumber before cutting.
When restarting a saw in a workpiece, center the saw blade in the kerf and check that saw teeth are not engaged into the material.
or KICKBACK from the workpiece as the saw is restarted.
Support large panels to minimize the risk of blade pinching and KICKBACK.
tend to sag under their own weight. Supports must be placed under the panel on both sides, near the line of cut and near the edge of the panel.
If saw blade is binding, it may walk up
Large panels
See “Cutting Large Sheets” in this
manual.
Do not use dull or damaged blade.
Unsharpened or improperly set blades produce narrow kerf causing excessive friction, blade binding and KICKBACK.
Blade depth and bevel adjusting locking knobs must be tight and secure before making cut.
cutting, it may cause binding and KICKBACK.
If blade adjustment shifts while
Using the saw with an excessive depth of cut setting increases loading on the unit and susceptibility to twisting of the blade in the kerf. It also increases the surface area of the blade available for pinching under conditions of kerf close down.
Use extra caution when making a “Pocket Cut” into existing walls or other blind areas.
The protruding blade may cut objects that can cause KICKBACK.
WARNING
!
grinding, drilling, and other construction activities contains chemicals known to cause cancer, birth defects or other reproductive harm. Some examples of these chemicals are:
• Lead from lead-based paints,
• Crystalline silica from bricks and cement and other masonry products, and
• Arsenic and chromium from chemically­treated lumber.
Your risk from these exposures varies, depending on how often you do this type of work. To reduce your exposure to these chemicals: work in a well ventilated area, and work with approved safety equipment, such as those dust masks that are specially designed to filter out microscopic particles.
Some dust created by power sanding, sawing,
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A
0
A
A
0
A
BM 1619X00905 3-05 3/24/05 11:00 PM Page 6
Symbols
IMPORTANT: Some of the following symbols may be used on your tool. Please study them
and learn their meaning. Proper interpretation of these symbols will allow you to operate the tool better and safer.
Symbol Name Designation/Explanation
V Volts Voltage (potential)
A Amperes Current
Hz Hertz Frequency (cycles per second)
W Watt Power
kg Kilograms Weight
min Minutes Time
s Seconds Time
Diameter Size of drill bits, grinding wheels, etc.
n
0
.../min Revolutions or reciprocation per minute Revolutions, strokes, surface speed,
0 Off position Zero speed, zero torque...
1, 2, 3, ... Selector settings Speed, torque or position settings.
I, II, III, Higher number means greater speed
No load speed Rotational speed, at no load
orbits etc. per minute
Infinitely variable selector with off Speed is increasing from 0 setting
Arrow Action in the direction of arrow
Alternating current Type or a characteristic of current
Direct current Type or a characteristic of current
Alternating or direct current Type or a characteristic of current
Class II construction Designates Double Insulated
Construction tools.
Earthing terminal Grounding terminal
Warning symbol Alerts user to warning messages
Ni-Cad RBRC seal Designates Ni-Cad battery recycling
program
This symbol designates that this tool is listed by Underwriters Laboratories.
This symbol designates that this tool is listed by the Canadian Standards Association.
This symbol designates that this tool is listed to Canadian Standards by Underwriters Laboratories.
This symbol designates that this tool is listed by Underwriters Laboratories, and listed to Canadian Standards by Underwriters Laboratories.
This symbol
designates that this tool complies to NOM Mexican Standards.
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Functional Description and Specifications
WARNING
!
Disconnect the plug from the power source before making any assembly, adjustments or changing accessories
measures reduce the risk of starting the tool accidentally.
Circular Saw
B
LADE WRENCH
& STORAGE AREA
RETRACTING
HANDLE
UPPER
GUARD
TRIGGER
SWITCH
. Such preventive safety
FIG. 1
AUXILIARY
HANDLE
QUADRANT
BEVEL
ADJUSTMENT
LEVER
LOWER GUARD
LIFT LEVER
NOTE: For tool specifications refer to the nameplate on your tool.
LOWER GUARD
FOOT
Maximum Capacities
Model 1656 Blade Blade arbor hole
8-1/4"
Round Depth of cut at 90° 2-15/16" Depth of cut at 60° 1-5/8" Depth of cut at 50° 1-3/4" Depth of cut at 45° 2-1/4"
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BM 1619X00905 3-05 3/24/05 11:00 PM Page 8
Assembly
ATTACHING THE BLADE
!
WARNING
m
aking any assembly, adjustments or
changing accessories
Disconnect the plug from t
he power source before
. Such preventive safety measures reduce the risk of starting the tool accidentally.
1. Press the lock button and turn wrench until lock button engages. Saw shaft is now locked. Continue to depress button, turn wrench counter-clockwise and remove BLADE STUD and OUTER WASHER (Fig. 2).
2. Retract the lower guard all the way up into the upper guard. While retracting the lower guard, check operation and condition of the LOWER GUARD SPRING.
3. Make sure the saw teeth and arrow on the blade point in the same direction as the arrow on the lower guard.
4. Slide blade through slot in the foot and mount it against the INNER WASHER on the shaft. Be sure the large diameter of the INNER and OUTER washers lay flush against the blade.
BLADE WRENCH
& STORAGE AREA
LOWER GUARD
SPRING
UPPER GUARD
5. Reinstall OUTER WASHER. First tighten BLADE STUD finger tight, then TIGHTEN B
LADE STUD 1/8 TURN (45˚) WITH THE
W
RENCH PROVIDED.
Do not use wrenches with longer handles, since it may lead to over tightening of the blade stud.
VARI-TORQUE CLUTCH
This clutching action is provided by the friction of the OUTER WASHER against the BLADE and permits the blade shaft to turn when the blade encounters excessive resistance. When the BLADE STUD is properly tightened (as described in No. 5 of Attaching The Blade), the blade will slip when it encounters excessive resistance, thus reducing saw’s tendency to KICKBACK.
One setting may not be sufficient for cutting all materials. If excessive blade slippage occurs, tighten the blade stud a fraction of a turn more (less than 1/8 turn). OVERTIGHTENING THE BLADE STUD NULLIFIES THE EFFECTIVE­NESS OF THE CLUTCH.
RETRACTING
HANDLE
LOWER GUARD
LIFT LEVER
OUTER WASHER
Large Diameter
Faces Blade
Tighten
Loosen
BLADE
STUD
LOWER GUARD
INNER WASHER
Large Diameter
Faces Blade
-8-
AUXILIARY
HANDLE
BACKVIEW
LOCK
BUTTON
FIG. 2
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Operating Instructions
Disconnect plug from power source. Loosen
DEPTH ADJUSTMENT
the depth adjustment lever located between the guard and handle of saw. Hold the foot down w
ith one hand and raise or lower saw by the
FIG. 3
Inner Scale
Calibrated In Inches
ADJUSTED PRIOR TO BEVEL ADJUSTMENT
DEPTH
ADJUSTMENT LEVER
CALIBRATED
DEPTH BRACKET
Outer Scale Calibrated
For Standard
Lumber Sizes
60° MARK TO BE
(60° ONLY)
90° CUTTING ANGLE CHECK
Disconnect plug from power source. Set foot to maximum depth of cut setting. Loosen bevel adjustment lever, set to 0° on quadrant, retighten lever and check for 90° angle between the blade and bottom plane of foot with a square (Fig. 5). Make adjustments by turning the small alignment screw, if necessary (Fig. 6).
BEVEL ADJUSTMENT
Disconnect plug from power source. The foot can be adjusted up to 45° by loosening the bevel adjustment lever at the front of the saw. Align to desired angle on calibrated quadrant. Then tighten bevel adjustment lever (Fig. 7). For 60° loosen depth adjustment lever, lower foot to 60° mark on depth bracket (Fig. 3), and tighten lever. Loosen bevel adjustment lever, depress 45° stop spring (Fig. 8), align foot to 60 mark on quadrant and tighten lever. Because of the increased amount of blade engagement in the work and decreased stability of the foot,
handle. Tighten lever at the depth setting desired. Check desired depth (Fig. 3).
Not more than one tooth length of the blade should extend below the material to be cut, for minimum splintering (Fig. 4).
ONE TOOTH LENGTH SHOULD
PENETRATE WOOD FOR
MINIMUM SPLINTERING
FIG. 5 FIG. 6
90°
BLADE
BEVEL
ADJUSTMENT
LEVER
FOOT
ALIGNMENT
SCREW
blade binding may occur. Keep the saw steady and the foot firmly on the workpiece.
QUADRANT
BEVEL
FIG. 7
ADJUSTMENT
LEVER
FIG. 4
For a straight 90° cut, use right side of notch
LINE GUIDE
in the foot. For 45° and 60° bevel cuts, use the left side (Fig. 8). The cutting guide notch will give an approximate line of cut. Make sample cuts in scrap lumber to verify actual line of cut. This will be helpful because of the number of different blade types and thicknesses available. To ensure minimum splintering on the good side of the material to be cut, face the good side down.
45° STOP
SPRING
PUSH 45°
STOP
SPRING IN DIRECTION OF ARROW
FOR 60°
-9-
° BEVEL
45 CUTS
60° BEVEL
CUTS
90° VERTICAL
CUTS
FIG. 8
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SWITCH
!
WARNING
T
he torque from the motor can cause the tool
t
o twist.
To turn tool “ON”, squeeze the trigger switch. To turn the tool “OFF”, release the trigger switch, which is spring loaded and will return to the off position automatically.
Your saw should be running at full speed BEFORE starting the cut, and turned off only AFTER completing the cut. To increase switch life, do not turn switch on and off while cutting.
Always hold the saw handle with one hand and the auxiliary handle or housing with the other.
!
WARNING
free movement of the lower guard.
Maintain a firm grip and operate the switch with a decisive action. Never force the saw. Use light and continuous pressure.
!
WARNING
released, be aware of the necessary time it takes for the blade to come to a complete stop during coast down. Do not allow the saw to brush against your leg or side, since the lower guard is retractable, it could catch on your clothing and expose the blade. Be aware of the necessary blade exposures that exist in both the upper and lower guard areas.
When cutting is interrupted, to resume cutting: squeeze the trigger and allow the blade to reach full speed, re-enter the cut slowly and resume cutting.
When cutting across the grain, the fibers of the wood have a tendency to tear and lift. Advancing the saw slowly minimizes this effect. For a finished cut, a cross cut blade or miter blade is recommended.
CUTTING MASONRY/METAL
This tool is not recommended for continuous and general usage with metal or masonry cut­off wheels. If you use your saw for cutting these materials, use the appropriate wheel for the material being cut.
When cutting masonry, do not cut a depth of more than 1/4 inch (6 mm). Make successive passes to achieve desired depth. Apply a light forward pressure. Do not overload motor.
When starting the tool, hold it with both hands.
GENERAL CUTS
Always be sure either hand does not interfere with the
After completing a cut and the trigger has been
Disconnect plug from power source and clean
dust from air vents frequently. Metal cutting is
done at full depth.
!
WARNING
lower guard.
sluggish when cutting masonry materials.
!
WARNING
safe operating speed greater than the “no
load RPM” marked on the tool’s
nameplate.
speed can fly apart and cause injury.
!
WARNING
flammable materials.
wheel could ignite these materials.
!
WARNING
Wet Diamond Wheels.
liquid coolants with this machine may result
in electrocution or shock. Use of Dry
Diamond Wheels is acceptable.
Disconnect the plug from the power source
before making adjustments. Set depth adjust-
ment according to material to be cut. Tilt saw
forward with cutting guide notch lined up with
the line you’ve drawn. Raise the lower guard,
using lift lever or retracting handle and hold the
saw by the front and rear handles (Fig. 9).
Clean guards frequently to assure a rapid return of
The lower guard may become
Abrasive Cut Off Wheels must have a maximum
Wheels running over the rated
Do not use the abrasive cut off wheel near
Sparks from the
This machine is not intended to be used with
Using water or other
POCKET CUTS
FIG. 9
RETRACTING
HANDLE
FOOT
LINE
GUIDE
LOWER
GUARD LIFT
LEVER
With the blade just clearing the material to be
cut, start the motor. Gradually lower the back
end of saw using the front end of the foot as the
hinge point.
!
WARNING
guard immediately.
the surface being cut, proceed cutting in forward
direction to end of cut.
As blade starts cutting the material, release the lower
When the foot rests flat on
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BM 1619X00905 3-05 3/24/05 11:00 PM Page 11
WARNING
!
Allow blade to come to a
complete stop before lifting the saw from cut. Also, never pull the saw backward since blade will climb out of the material and KICKBACK will occur.
CUTTING LARGE SHEETS
Large sheets and long boards sag or bend, depending on support. If you attempt to cut without leveling and properly supporting the piece, the blade will tend to bind, causing KICK­BACK and extra load on the motor (Fig. 10).
Support the panel or board close to the cut, as shown in (Fig. 11). Be sure to set the depth of the cut so that you cut through the sheet or board only and not the table or work bench. The two-by-fours used to raise and support the work should be positioned so that the broadest sides support the work and rest on the table or bench. Do not support the work with the narrow sides as this is an unsteady arrangement. If the sheet or board to be cut is too large for a table or work bench, use the supporting two-by-fours on the floor and secure.
Turn saw around and finish the cut in the normal manner, sawing forward. If corners of your pocket cut are not completely cut through, use a jigsaw or hand saw to finish the corners.
FIG. 10
WRONG
FIG. 11
RIGHT
The combination blade provided with your saw
RIP CUTS
is for both cross cuts and rip cuts. Ripping is cutting lengthwise with the grain of the wood. Rip cuts are easy to do with a rip fence (Fig.
12). Rip Fence is available as an accessory (not included). To attach fence, insert fence through slots in foot to desired width as shown and secure with the wing nut (not included).
FIG. 12
WING
NUT
FOOT
RIP
FENCE
DESIRED
WIDTH
OF CUT
When rip cutting large sheets, the rip fence
RIP BOARD GUIDE
may not allow the desired width of cut. Clamp or nail a straight piece of 1" (25 mm) lumber to the sheet as a guide (Fig. 13). Use the right side of the foot against the board guide.
RIP BOARD
GUIDE
-11-
FIG. 13
DESIRED
LINE
OF CUT
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