Flex BRL 721 VE User manual

BRL 721 VE
Instruction manual
Bedienungsanleitung
Manual de instrucciones
Manuel d’utilisation
Gebruikshandleiding
Bruksanvisning
Manuale delle istruzioni
307.831
Copyright © 2003 Porter-Cable Corporation

D-71711 Steinheim/Murr – Tel. [phone] – Fax [phone]

Figures, Abbildungen, Figuras, Figures, Afbeeldingen, Figurer, Figure
1
CAB
3
2
A
B

Figures, Abbildungen, Figuras, Figures, Afbeeldingen, Figurer, Figure
4
5

1
SAFETY RULES FOR SCREWDRIVERS
1. HOLD TOOL BY INSULATED GRIPPING SURFACES WHEN
PERFORMING AN OPERATION WHERE THE CUTTING TOOL MAY CONTACT HIDDEN
WIRING OR ITS OWN CORD. Contact with a “live” wire will also make exposed metal
parts of the tool “live” and shock the operator.
2. DO NOT use bits larger than those recommended. Larger bits increase the chance of
jamming, and will overload the drill, damaging the motor and gears.
3. USE THE PROPER CHUCK KEY ONLY TO TIGHTEN OR LOOSEN THE CHUCK. Do not
use chuck if jaws or other parts are cracked or worn.
4. VERIFY THE DRILL’S ROTATION BEFORE STARTING THE DRILL.
5. NEVER ATTEMPT TO CHANGE DIRECTION of rotation while switch is “ON”. To do so,
may damage interlock feature built into switch. Be sure switch is “OFF” and motor has
completely stopped before changing direction of rotation.
6. NEVER HOLD WORKPIECE IN YOUR HAND, LAP, OR AGAINST OTHER PARTS OF
YOUR BODY during operation.
7. DO NOT USE DRILL AS A ROUTER, or try to elongate or enlarge holes by twisting the
drill. Drill bits can break and can cause injury.
8. APPLY FORWARD FORCE ON THE PISTOL GRIP HANDLE ONLY, AND ONLY WITH
YOUR HANDS. When using an auxiliary handle, grasp it with one hand to resist
rotational force.
9. SOME WOOD CONTAINS PRESERVATIVES WHICH CAN BE TOXIC. Take extra care to
prevent inhalation and skin contact when working with these materials. Request, and
follow, any safety information available from your material supplier.
10. SOME WOOD CONTAINS PRESERVATIVES WHICH CAN BE TOXIC. Take extra care to
prevent inhalation and skin contact when working with these materials. Request, and
follow, any safety information available from your material supplier.
TECHNICAL SPECIFICATIONS
Type . . . . . . . . . . . . . . . . . . . . . . . . BRL 721 VE
Part number . . . . . . . . . . . . . . . . . . . . . 307.831
Rated speed (no load) . . . . . . . . . 0–2500/min
Power consumption . . . . . . . . . . . . . . . .765 W
Power output . . . . . . . . . . . . . . . . . . . . . 420 W
Max. drill Ø in steel . . . . . . . . . . . . . . . . . 8 mm
Max. drill Ø in wood . . . . . . . . . . . . . . . 20 mm
Max. clamp Ø . . . . . . . . . . . . . . . . . . . . . 13 mm
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.0 kg
Typical weighted acceleration: . . . . <2.5 m/s2
A-weighted noise levels:
Sound pressure level . . . . . . . . . . . 84 dB(A)
Sound power level . . . . . . . . . . . . . 97 dB(A)
Wear ear protection!

2
REPLACEMENT PARTS
When servicing use only identical replacement parts.
OPERATING INSTRUCTIONS
TO START AND STOP DRILL
1. Confirm that the trigger switch is “OFF”. Make sure that the power circuit voltage is the same
as that shown on the specification plate of the drill. Connect the drill to the power source.
2. Squeeze the trigger switch (A) Fig. 1 to start the motor. Release the trigger switch to stop the
motor.
3. A switch-lock button (B) Fig. 1 is provided to keep the motor running without holding the
trigger switch “ON”.
A. To LOCK the tool in the “ON” position, squeeze the trigger switch, push in and hold the
lock button while releasing the trigger switch.
B. To RELEASE the switch-lock button, squeeze the trigger switch and release.
NOTE: The switch-lock button can be engaged only when the drill is running at maximum speed.
Never use the switch-lock button when the drill may have to be stopped
suddenly.
5. VARIABLE SPEED: As the trigger switch is squeezed, the drill speed increases.
INSTALLING AND REMOVING DRILL BIT
DISCONNECT TOOL FROM POWER SOURCE.
1. The three-jaw chuck is designed for self-centering of the bit. Open the jaws by turning the
outer sleeve (B) Fig. 2 counterclockwise (when viewing the chuck from the bit end) so that the
bit shank can be inserted easily.
2. Clean and insert the smooth end of the bit as far as it will go into the chuck, then withdraw the
bit approximately 1/16", or up to the flutes for small bits.
3. While holding the bit with one hand, turn the outer sleeve (B) Fig. 2 clockwise until the chuck
grips the bit.
4. Tighten the chuck by holding the chuck ring (A) Fig. 2 with one hand while turning the outer
sleeve (B) clockwise with the other hand. Tighten securely.
Do not operate the drill motor while installing or removing bits. Operating the
drill motor can cause a bit to be thrown from chuck causing personal injury.
5. To remove the bit, reverse the procedure.
HOW TO HOLD THE DRILL
The front end of the drill may become live if the tool drills into live wiring.
TO PREVENT ACCIDENTAL ELECTRICAL SHOCK, hold the drill as shown
in Fig. 3. Apply forward force on the pistol grip handle only, and only
with your hands.
4. This tool will operate in either the forward direction (clockwise rotation), or the reverse direction
(counter-clockwise rotation). ALWAYS allow the motor to completely stop before reversing the
direction. For CLOCKWISE rotation, depress the right end of the switch button (C) Fig. 1. For
COUNTER-CLOCKWISE rotation, depress the left end of the switch button.

3
HOW TO USE THE DRILL
GENERAL DRILLING
1. Verify that the drill bit is securely gripped in the chuck. (See “INSTALLING AND REMOVING
DRILL BIT”).
2. Set the reversing switch (C) Fig. 1 for clockwise rotation.
Hold the workpiece securely in a vise, or clamp it in place prior to starting the
drilling operation.A loose workpiece may spin and cause bodily injury.
3. Locate the exact center of the space for the hole to be drilled. Use a center punch to make a
small dent in the workpiece.
4. Place the tip of the drill bit in the dent made by center punch, hold the drill square with the
workpiece, and start the motor.Apply steady, even pressure to keep the drill bit cutting. Too
little pressure will keep the bit from cutting and dull the edges due to excessive friction.
Too much pressure may cause the bit to break or overheat, resulting in bodily
injury or damaged drill bits.
If the drill stalls or becomes jammed in the workpiece, the torque can cause the
tool to twist. BE ALERT and brace yourself agaist this twisting action.
5. If the drill stalls or becomes jammed in the workpiece, release the trigger immediately.
Do not squeeze the trigger “ON” and “OFF” in an attempt to free the drill
bit. – This action will damage the motor.. Try reversing the direction of
rotation.
6. Reset the direction before drilling.
7. Reduce the pressure on the drill just before the bit cuts through the work to avoid splintering
the wooden workpiece or stalling in metal.
8. When the bit has completely penetrated the workpiece and is spinning freely, withdraw it from
the work while the motor is still running, then turn the drill “OFF”.
DRILLING WOOD
The following instructions apply In addition to the instructions listed under “GENERAL DRILLING”:
1. To prevent overheating of the bits and burning the workpiece, withdraw twist drills from
wood frequently to clear the flutes of chips and debris.
2. If you use a backing block to keep the back of the workpiece from splintering, clamp it
securely in place. If you do not use a backing block with spade or auger bits, ease up the
pressure as soon as the bit point breaks through the workpiece, and complete drilling of the
hole from the opposite side.
DRILLING METAL
The following instructions apply in addition to the instructions listed under “GENERAL DRILLING”
Jamming of a bit is more likely to occur when drilling into a metal workpiece
than when drilling into any other material.
1. Use only good quality, sharp, high-speed, steel twist bits.
2. Start drilling slowly and gradually increase the speed as the drill cuts. The harder the
material, the slower the speed required. The softer the material, the faster the speed.
3. When drilling a large hole, first drill a smaller hole and then enlarge it to size.
4. The use of a lubricant such as oil on the drill point helps keep the bit cool, increasing the
drilling action and prolonging the drill bit life.

4
MAINTENANCE
KEEP TOOL CLEAN
Periodically blow out all air passages with dry compressed air. Remove buildup of grime resulting
from working with green or sappy wood. All plastic parts should be cleaned with a soft damp cloth.
NEVER use solvents to clean plastic parts. They could possibly dissolve or otherwise damage the
material.
Wear safety glasses while using compressed air.
FAILURE TO START
Should your tool fail to start, check to make sure the prongs on the cord plug are making good
contact in the outlet. Also, check for blown fuses or open circuit breakers in the line.
CHUCK REPLACEMENT
DISCONNECT TOOL FROM POWER SOURCE.
1. Open the chuck jaws as wide as possible to gain access to the chuck retaining screw.
2. While holding the chuck securely with a wrench on the flats of the spindle shaft (A) Fig 6,
remove the chuck retaining screw by turning the screw clockwise (left hand threads).
3. Place the short end of a large hex wrench (1/4" or larger) (A) Fig. 7 into the chuck. (B), and a
9/16" wrench (C) on the flats of the spindle shaft. Turn the chuck counterclockwise to
remove.
4. INSTALL THE CHUCK: Open the jaws of the replacement chuck as wide as possible. Thread
chuck onto spindle by turning chuck clockwise. Hand tighten. Place the hex wrench in the
chuck (see Step 4), and a 9/16" wrench on the flats of the spindle. Tighten firmly by turning
the chuck clockwise.
5. Remove the hex wrench from the chuck.
6. INSTALL THE CHUCK RETAINING SCREW. Turn the screw counterclockwise. Tighten
securely.
BRUSH INSPECTION AND LUBRICATION
For your continued safety and electrical protection, brush inspection and
replacement on this tool should ONLY be performed by an Authorized Service
Agent for FLEX Power Tools.
At approximately 100 hours of use, take or send your tool to your nearest Authorized Service Agent
for FLEX Power Tools to be thoroughly cleaned and inspected; worn parts replaced, when
necessary; relubricated with fresh lubricant, if required; reassembled with new brushes; and
performance tested.
Any loss of power before the above maintenance check may indicate the need for immediate ser-
vicing of your tool. DO NOT CONTINUE TO OPERATE TOOL UNDER THIS CONDITION. If proper
operating voltage is present, return your tool to the Service Agent for immediate service.
SERVICE AND REPAIRS
All quality tools will eventually require servicing or replacement of parts due to wear from normal
use. These operations, including brush inspection and replacement, should ONLY be performed by
an Authorized Service Agent for FLEX Power Tools. All repairs made by these agencies are fully
guaranteed against detective material and workmanship. We cannot guarantee repairs made or
attempted by anyone other than these agencies.
Should you have any questions about your tool, feel free to write us at any time. In any
communications, please give all information shown on the nameplate of your tool (model number,
type, serial number, etc.).