OPERATOR'S MANUAL
CORDLESS DRILL-DRIVER
MODEL NOS. CTH1202K2/CTH1442K2/CTH1802
2
2 2
2 0
18
6
1
THANK YOU FOR BUYING A RYOBI CORDLESS DRILL-DRIVER.
Your new cordless drill-driver has been engineered and manufactured to Ryobi’s high standard for dependability, ease of
operation, and operator safety. Properly cared for, it will give you years of rugged, trouble-free performance.
CAUTION: Carefully read through this entire operator's manual before using your new cordless drill-driver.
Pay close attention to the Rules for Safe Operation, Warnings, and Cautions. If you use your cordless drill-driver properly
and only for what it is intended, you will enjoy years of safe, reliable service.
Thank you again for buying Ryobi tools.
SAVE THIS MANUAL FOR FUTURE REFERENCE
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RULES FOR SAFE OPERATION
The purpose of safety symbols is to attract your attention to possible dangers. The safety symbols, and the
explanations with them, deserve your careful attention and understanding. The safety warnings do not by
themselves eliminate any danger. The instructions or warnings they give are not substitutes for proper accident
prevention measures.
SYMBOL MEANING
SAFETY ALERT SYMBOL:
Indicates danger, warning or caution. May be used in conjunction with other symbols or pictographs.
DANGER: Failure to obey a safety warning will result in serious injury to yourself or to others. Always
follow the safety precautions to reduce the risk of fire, electric shock, and personal injury.
WARNING: Failure to obey a safety warning can result in serious injury to yourself or to others. Always
follow the safety precautions to reduce the risk of fire, electric shock and personal injury.
CAUTION: Failure to obey a safety warning may result in property damage or personal injury to yourself
or to others. Always follow the safety precautions to reduce the risk of fire, electric shock and personal
injury.
NOTE:
Advises you of information or instructions vital to the operation or maintenance of the equipment.
KNOW YOUR CORDLESS TOOL
READ ALL INSTRUCTIONS
Safe operation of this cordless tool requires that you read
and understand this Operator's Manual and all labels affixed
to the tool. Learn its applications and limitations as well as
the potential hazards related to a cordless tool. Keep this
manual readily available for future reference.
1. KEEPTHEWORKAREACLEAN. Clutteredwork
areas and work benches invite injuries.
2. CONSIDERWORKAREAENVIRONMENT.Keep
work area well lit. Do not use tool in presence of
flammable liquids or gases.
IMPORTANT
3. GUARD AGAINST ELECTRICAL SHOCK BY
PEVENTING BODY CONTACT WITH
GROUNDED SURFACES. For example: Pipes,
radiators, ranges, refrigerator enclosures.
Servicing of a tool requires extreme care and knowledge of
the system and should be performed only by a qualified
service technician. For service we suggest you return the
tool to your nearest RYOBI AUTHORIZED SERVICE
CENTER for repair. When servicing, use only identical Ryobi
replacement parts.
4. KEEP CHILDREN AND VISITORS AWAY. All
visitors should wear safety glasses and be kept a
safe distance from work area. Do not let visitors
contact tool or extension cord.
WARNING:
5. STORE IDLE TOOLS. When not in use tools
should be stored in a dry and high or locked-up
place - out of the reach of children.
Do not attempt to operate this tool until you have read
thoroughly and understand completely all instructions,
safety rules, etc. contained in this manual. Failure to
comply can result in accidents involving fire, electric
shock, or serious personal injury. Save this operator's
manual and review it frequently for continuing safe
operation, and instructing others who may use this tool.
6. DON'T FORCE TOOL. It will do the job better and
safer at the rate for which it was designed.
7. USE RIGHT TOOL. Don't force small tool or
attachment to do the job of a heavy duty tool. Don't
use tool for purpose not intended - for example - A
circular saw should never be used for cutting tree
limbs or logs.
WARNING:
When using power tools, basic safety precautions should
always be followed to reduce the risk of fire, electric
shock, and personal injury, including the following
precautions.
8. WEAR PROPER APPAREL. Do not wear loose
clothing or jewelry that can get caught in tool's
moving parts and cause personal injury. Rubber
gloves and nonskid footwear are recommended
Page 3
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RULES FOR SAFE OPERATION (Continued)
when working outdoors. Wear protective hair
coveringtocontainlonghairandkeepitfrombeing
drawn into nearby air vents.
PRECAUTIONS ON USING YOUR
CORDLESS TOOL
This product contains Nickel-Cadmium batteries which
must be disposed of properly.
9. ALWAYS WEAR SAFETY GLASSES. Everyday
eyeglasseshaveonlyimpact-resistantlenses;they
are NOT safety glasses.
1. Be aware that this tool is always in an operating
condition, because it does not have to be plugged
into an electrical outlet.
10. PROTECT YOUR LUNGS. Wear a face mask or
dust mask if operation is dusty.
2. First, charge the battery.
11. PROTECT YOUR HEARING. Wear hearing
3. Be sure the battery is snapped in place.
4. When not in use, lock the switch.
protection during extended periods of operation.
12. 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.
5. When operating at a high place, be aware of things
below you.
6. Before drilling into walls, ceilings, or floors, make
sure that there are no concealed power cables
inside.
13. DON'T OVERREACH. Keep proper footing and
balance at all times. Do not use on a ladder or
unstable support.
14. MAINTAINTOOLSWITHCARE.Keeptoolssharp
at all times, and clean for best and safest
performance. Follow instructions for lubricating
and changing accessories.
WARNING:
Drilling into electrical wiring in walls can cause
drill bit and chuck to become electically live. Do
not touch the chuck or metal housing when
drilling into a wall; grasp only the insulated
handle(s) provided on the tool.
15. REMOVEADJUSTING KEYSANDWRENCHES.
Form habit of checking to see that keys and
adjusting wrenches are removed from tool before
turning it on.
IMPORTANT SAFETY INSTRUCTIONS FOR
CHARGER
16. AVOID UNINTENTIONAL STARTING. Do not
carry the tool with your finger on the switch. Be
sure switch is off when installing battery pack.
17. STAY ALERT. Watch what you are doing and use
common sense. Do not operate tool when you are
tired. Do not rush.
1. SAVE THESE INSTRUCTIONS. This manual
containsimportantsafetyandoperatinginstructions
for charging the battery with the following
components:
18. CHECK DAMAGED PARTS. Before further use
of the tool, a guard or other part that is damaged
shouldbecarefullycheckedtodeterminethatitwill
operateproperlyandperformitsintendedfunction.
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.
MODEL
BATTERY
1400652
1400671
1400672
CHARGER
1400666
1400656
1400667
CTH1202K2
CTH1442K2
CTH1802
2. Before using battery charger, read all instructions
andcautionarymarkingson(1)batterycharger,(2)
battery, and (3) products using battery.
WARNING:
To reduce risk of injury, charge only nickel-
cadmiumtyperechargeablebatteries.Othertypes
of batteries may burst causing personal injury
and damage.
19. DO NOT USE TOOL IF SWITCH DOES NOT
TURN IT ON AND OFF. Have defective switches
replaced by an authorized Ryobi Service Center.
20. DRUGS, ALCOHOL, MEDICATION. Do not
operate tool while under the influence of drugs,
alcohol, or any medication.
3. Do not expose charger to rain or snow.
4. Use of an attachment not recommended or sold by
the battery charger manufacturer may result in a
risk of fire, electric shock, or injury to persons.
21. INSPECT FOR and remove all nails from lumber
before drilling.
22. DO NOT CHARGE BATTERY TOOL IN A DAMP
OR WET LOCATION.
Page 4
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RULES FOR SAFE OPERATION (Continued)
5. Toreduceriskofdamagetoelectricplugandcord,
pull by the plug rather than the cord when
disconnecting charger.
4. Consecutive charging may cause overheating. If
you need to recharge batteries consecutively,
wait for about 15 minutes to allow charger to cool.
6. Make sure cord is located so that it will not be
stepped on, tripped over, or otherwise subjected
to damage or stress.
5. Do not insert foreign matter into the hole for the
battery in charger stand.
6. Do not charge by means of an engine generator
or DC power source.
7. An extension cord should not be used unless
absolutely necessary. Use of improper extension
cord could result in a risk of fire and electric shock.
If extension cord must be used, make sure:
7. Do not disassemble the battery.
8. Do not store the tool and battery in locations
where the temperature may reach or exceed
104° F (40° C), such as outside sheds or metal
buildings in summer.
a. That pins on plug of extension cord are the
same number, size and shape as those of plug
on charger.
9. Do not incinerate the battery, even if it is severely
damaged or completely worn out. The battery
may explode in fire.
b. That extension cord is properly wired and in
good electrical condition; and
c. That wire size is large enough for AC ampere
rating of charger as specified below:
10. Battery leakage may occur under conditions of
extreme usage or temperature. If liquid comes in
contact with skin, wash quickly with soap and
water, then with lemon juice or vinegar. If liquid
gets in your eyes, wash with water for at least 10
minutes and seek medical attention immediately.
Cord Length (Feet) 25 ft. 50 ft. 100 ft.
Cord Size (AWG)
16
16
16
Note: AWG = American Wire Gage
8. Do not operate charger with damaged cord or
plug. Replace immediately.
11. Do not short-circuit the battery.
9. Do not operate charger if it has received a sharp
blow, been dropped, or otherwise damaged in
any way; take it to a RYOBI AUTHORIZED
SERVICE CENTER.
WARNING:
Some dust created by power sanding, sawing, grinding,
drilling, and other construction activities contains
chemicals known to cause cancer, birth defects or
other reproductive harm. Some examples of these
chemicals are:
10. Do not disassemble charger; take it to a RYOBI
AUTHORIZEDSERVICECENTERwhenservice
or repair is required. Incorrect reassembly may
result in a risk of electric shock or fire.
• lead from lead-based paints,
• crystalline silica from bricks and cement and other
masonry products, and
11. To reduce risk of electric shock, unplug charger
from outlet before attempting any maintenance
or cleaning. Turning off controls will not reduce
this risk.
• arsenicandchromiumfromchemically-treatedlumber.
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.
PRECAUTIONS REGARDING THE USE OF
CHARGER AND BATTERY
1. Donotchargebatterywhentemperatureisbelow
50° F (10° C) or above 95° F (35° C).
2. Never attempt to connect two chargers together.
3. The charger is designed to operate on standard
household electrical power. Do not attempt to
use it on any other voltage.
SAVE THESE INSTRUCTIONS
Page 5
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SPECIFICATIONS:
CTH1442K2
DRILL-DRIVER
Chuck
CTH1202K2
CTH1802
3/8 in. Keyless
DC Motor 12.0 V
Two-Speed
3/8 in. Keyless
DC Motor 14.4 V
Two-Speed
1/2 in. Keyless
DC Motor 18.0 V
Two-Speed
Motor
Gear Train
Switch
Variable Speed
Variable Speed
Variable Speed
No Load Speed
0-300 RPM (Low)
0-1000 RPM (High)
0-350 RPM (Low)
0-1300 RPM (High)
0-350 RPM (Low)
0-1300 RPM (High)
Clutch
CHARGER
Input
24 Positions
24 Positions
24 Positions
1400666
1400656
1400667
120 V, 60 Hz, AC only 120 V, 60 Hz, AC only 120 V, 60 Hz, AC only
Charging Voltage 12.0 V
Charge Rate 1 Hour
14.4 V
1 Hour
18.0 V
1 Hour
IMPORTANT INFORMATION FOR RECHARGING HOT BATTERIES
When using your drill-driver continuously, the batteries in
occur under normal circumstances. Refer to "Charging
Your Drill-Driver" for normal recharging of batteries. If the
charger does not charge your battery pack under normal
circumstances, return both the battery pack and charger to
your nearest RYOBI AUTHORIZED SERVICE CENTER for
electrical check.
your battery pack become hot. You should let a hot battery
pack cool down for approximately 30 minutes before at-
tempting to recharge.
Note: This situation occurs when continuous use of your
drill-driver causes the batteries to become hot. It does not
DISPOSAL OF THE EXHAUSTED BATTERY
To preserve natural resources, please
recycle or dispose of batteries properly.
BATTERY PACK PREPARATION FOR
RECYCLING
Y
C
C
L
E
E
R R B R C
This product contains nickel-cadmium
battery. Local, state, or federal laws may
prohibit disposal of Nickel-Cadmium
batteries in ordinary trash.
1
7
.
N i C d
8
83
WARNING:
0
0
8
.
.
8
2
2
Upon removal, cover the battery pack's terminals with
heavy duty adhesive tape. Do not attempt to destroy or
disassemble battery pack or remove any of its
components. Also, never touch both terminals with metal
objects and/or body parts, as short circuit may result.
Keep away from children. Failure to comply with these
warnings could result in fire and/or serious injury.
Consult your local waste authority for information regarding
available recycling and/or disposal options.
For more information on battery recycling call 1-800-8
BATTERY.
WARNING:
Do not attempt to disassemble the battery pack. Fire or injury may result.
WARNING:
The operation of any power tool can result in foreign objects being thrown into your
eyes, which can result in severe eye damage. Before beginning power tool operation,
always wear safety goggles or safety glasses with side shields and a full face shield
when needed. We recommend Wide Vision Safety Mask for use over eyeglasses or
standard safety glasses with side shields.
Page 6
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OPERATION
KNOW YOUR DRILL-DRIVER
TWO SPEED GEAR TRAIN (LO-HI)
See Figures 1 and 2.
TORQUE
ADJUSTMENT
Before attempting to use any tool, familiarize yourself with all
operating features and safety requirements.
2
RING
BIT
STORAGE
2 2
2 0
WARNING:
18
6
1
Do not allow familiarity with tools to make you careless.
Remember that a careless fraction of a second is
sufficient to inflict severe injury.
DIRECTION OF
ROTATION
SELECTOR
SWITCH
TRIGGER
KEYLESS
CHUCK
CHARGING YOUR DRILL-DRIVER
WRIST
STRAP
The battery pack for this tool has been shipped in a low
charge condition to prevent possible problems. Therefore,
you should charge it prior to use.
BATTERY
PACK
Note: Batteries will not reach full charge the first time they
are charged. Allow several cycles (drilling followed by re-
charging) for them to fully charge.
Fig. 1
GREEN LIGHT "ON"
INDICATES FULLY
CHARGED
BATTERY
CHARGER
TO CHARGE
■ Charge battery pack only with the charger provided.
■ Make sure power supply is normal house voltage,
120 volts, 60 Hz, AC only.
■ Connect charger to power supply.
■ Place battery pack in charger. See Figure 3. Align
raised rib on battery pack with groove in charger.
■ Press down on battery pack to be sure contacts on
battery pack engage properly with contacts in charger.
When properly connected, red light will turn on.
■ Normally, the yellow and green lights on the charger
will come on. This indicates charger is in control charge
mode and should switch to fast charge mode within 5
minutes. When charger is in fast charge mode the red
light will come on. If after a period of 15 minutes the
yellow and green lights remain on, remove the battery
pack, wait 1 minute and re-insert battery pack in charger.
If the yellow and green lights continue to remain on an
additional 15 minutes, the battery pack is damaged
and will not accept charge.
RED LIGHT "ON"
INDICATES FAST
CHARGING MODE
YELLOW AND GREEN LIGHTS "ON"
INDICATES CONTROL CHARGE OR
POSSIBLE FAULTY BATTERY
Fig. 2
BATTERY
CHARGER
■ When your battery pack becomes fully charged, the
red light will turn off and the green light will turn on.
■ After normal usage, 1 hour of charge time is required to
be fully charged. A minimum charge time of 1 to 1-1/2
hours is required to recharge a completely discharged
tool.
■ The battery pack will become slightly warm to the touch
while charging. This is normal and does not indicate a
problem.
■ DO NOT place charger in an area of extreme heat or
cold. It will work best at normal room temperature.
BATTERY
PACK
Fig. 3
LED FUNCTION OF CHARGER
LED WILL BE LIGHTED TO INDICATE STATUS OF CHARGER AND BATTERY PACK:
1. Red LED lighted = Fast Charging Mode
2. Green LED lighted = Fully Charged Battery Pack
3. Yellow and Green LED Lighted = Control Charge or Defective Battery Pack.
Page 7
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OPERATION
DIRECTION OF
ROTATION SELECTOR
WARNING:
REVERSE
If any parts are missing, do not operate tool until the
missing parts are replaced. Failure to do so could result
in possible serious personal injury.
SWITCH
TRIGGER
2 2
SWITCH
See Figure 4.
18
Your drill starts and stops by depressing and releasing the
switch trigger. Release the switch trigger to turn drill OFF.
VARIABLE SPEED
See Figure 4.
CENTER POSITION
(LOCK)
Your drill has a variable speed feature in the switch. The
switch delivers higher speed and torque with increased
trigger pressure. Speed is controlled by the amount of
switch trigger depression.
FORWARD
Fig. 4
SWITCH LOCK
See Figure 4.
TWO SPEED
GEAR TRAIN
(LO-HI)
HI (2)
The switch trigger can be locked in the OFF position. This
feature helps reduce the possibility of accidental starting
when not in use. To lock the switch trigger, place the
direction of rotation selector in the center position.
LO (1) SPEED
2
REVERSIBLE
See Figure 4.
2 2
This tool is reversible. The direction of rotation is controlled
by a direction of location selector located above the switch
trigger. With the drill held in normal operating position, the
direction of rotation selector should be positioned to the left
of the switch for drilling. The drilling direction is reversed
when the selector is to the right of the switch. When the
selector is in center position, the switch trigger is locked.
2 0
18
6
1
Fig. 5
CAUTION:
To prevent gear damage, always allow chuck to come to
a complete stop before changing the direction of rotation.
TWO SPEED GEAR TRAIN
See Figure 5.
Your drill has a two-speed gear train designed for drilling or
driving at LO (1) or HI (2) speeds. A slide switch is located
on top of your drill to select either LO (1) or HI (2) speed.
When using drill in the LO (1) speed range, speed will
decrease and unit will have more power and torque. When
using drill in the HI (2) speed range, speed will increase and
unit will have less power and torque. Use LO (1) speed for
high power and torque applications and HI (2) speed for
fast drilling or driving applications.
To stop, release switch trigger and allow the chuck to come
to a complete stop.
WARNING:
Battery tools are always in operating condition. Therefore,
switch should always be locked when not in use or when
carrying at your side.
Page 8
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OPERATION
TO INSTALL BATTERY PACK
■ Place the direction of rotation selector in center posi-
tion. See Figure 4.
■ Place the battery pack in your drill. Align raised rib on
battery pack with groove in drill's battery port. See Fig-
ure 6.
■ Make sure the latches on each side of your battery pack
snap in place and that battery pack is secured in drill
before beginning operation.
BATTERY
PACK
TO REMOVE BATTERY PACK
■ Place the direction of rotation selector in center posi-
BATTERY
PORT
tion. See Figure 4.
■ Locate latches on side of battery pack and depress both
sides to release battery pack from drill. See Figure 6.
LATCHES
■ Remove battery pack from your drill.
CAUTION:
When placing battery pack in your drill, be sure raised
rib on battery pack aligns with groove in drill's battery
port and latches snap in place properly. Improper
assembly of battery pack can cause damage to internal
components.
DEPRESS LATCHES TO
RELEASE BATTERY PACK
Fig. 6
KEYLESS CHUCK
See Figure 7.
CHUCK
COLLAR
RELEASE
(UNLOCK)
A keyless chuck has been provided with your drill to allow for
easy installation and removal of bits. As the name implies,
you can hand tighten or release drill bits in the chuck jaws.
Grasp and hold the collar of the chuck with one hand. Rotate
the chuck body with your other hand. The arrows on the
chuck indicate which direction to rotate the chuck body in
order to GRIP (tighten) or RELEASE (unlock) the drill bit.
2 2
20
18
WARNING:
Do not hold chuck body with one hand and use power of
the drill to tighten chuck jaws on drill bit. Chuck body
could slip in your hand or your hand could slip and come
in contact with rotating drill bit. This could cause an
accident resulting in serious personal injury.
GRIP
(TIGHTEN)
CHUCK
BODY
Fig. 7
Page 9
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OPERATION
INSTALLING AND REMOVING BITS
CHUCK BODY
■ Place the direction of rotation selector at the center
position. This will turn off the power to your drill.
CHUCK JAWS
■ Open or close the chuck jaws to a point where the
opening is slightly larger than the bit size you intend to
use. Also, raise the front of your drill slightly to keep the
bit from falling out of the chuck jaws.
2
2 2
■ Insert your drill bit into the chuck the full length of the
20
jaws. See Figure 8.
18
■ Tighten the chuck jaws on the drill bit. To tighten, grasp
and hold the collar of the chuck with one hand, while
rotating the chuck body with your other hand.
DRILL BIT
CHUCK COLLAR
Note: Rotate the chuck body in the direction of the arrow
marked GRIP to tighten the chuck jaws. DO NOT use a
wrench to tighten or loosen the chuck jaws.
RIGHT
Fig. 8
WARNING:
Do not insert drill bit into chuck jaws and tighten as shown
in figure 9. This could cause drill bit to be thrown from
drill resulting in possible serious personal injury or
damage to the chuck.
2
2 2
2 0
REMOVING BITS
See Figure 8.
18
■ Place the direction of rotation selector at the center
6
1
position. This will turn off the power to your drill.
■ Loosen the chuck jaws from drill bit.
■ To loosen: grasp and hold the collar of the chuck with
one hand, while rotating chuck body with your other hand.
Note: Rotate chuck body in the direction of the arrow
marked RELEASE to loosen chuck jaws. DO NOT use
a wrench to tighten or loosen the chuck jaws.
WRONG
Fig. 9
■ Remove drill bit from chuck jaws.
DRILLING
See Figure 10.
When drilling hard, smooth surfaces, use a center punch to
mark the desired hole location. This will prevent the drill bit
from slipping off center as the hole is started. However, the
lower speed feature allows starting holes without center
punching if desired. To accomplish this, simply operate your
drill at lower speed until the hole is started.
2 2
2 0
1 8
1 6
The material to be drilled should be secured in a vise or with
clamps to keep it from turning as the drill bit rotates.
Hold tool firmly and place the bit at the point to be drilled.
Depress the switch trigger to start tool.
Move the drill bit into the workpiece, applying only enough
pressure to keep the bit cutting. Do not force or apply side
pressure to elongate a hole.
Fig. 10
Page 10
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OPERATION
TORQUE ADJUSTMENT RING
WARNING:
TO DECREASE
TORQUE
2
Be prepared for binding or breakthrough. When these
situations occur, the drill has a tendency to grab and kick
in the opposite direction, and could cause loss of control
when breaking through material. If you are not prepared,
this loss of control can result in possible serious injury.
2 2
2 0
18
When drilling metals, use a light oil on the drill bit to keep it
from overheating. The oil will prolong the life of the bit and
increase the drilling action.
6
1
If the bit jams in workpiece or if the drill stalls, release switch
trigger immediately. Remove the bit from the workpiece and
determine the reason for jamming.
TO INCREASE
TORQUE
Fig. 11
SCREWDRIVING
TORQUE ADJUSTMENT
(Driving power of your drill-driver)
SCREWDRIVER
BIT
BIT STORAGE AREA
When using your drill-driver for various driving aplications, it
becomes necessary to increase or decrease the torque in
order to help prevent the possibility of damaging screw
heads, threads, workpiece, etc. In general, torque should
correspond to the intensity of the screw diameter. If the
torque is too high or the screws too small, the screws may be
damaged or broken.
2
2 2
2 0
18
Thetorqueisadjustedbyrotatingthetorqueadjustmentring.
See Figure 11. The torque is greater when the torque
adjustment ring is set on a higher setting. The torque is less
when the torque adjustment ring is set on a lower setting.
6
1
SCREWDRIVER
BIT
Fig. 12
The proper setting depends on the type of material and the
size of screw you are using.
TO ADJUST TORQUE
■ Identify the twenty four torque indicator settings located
WARNING:
on the front of your drill. See Figure 11.
Always wear safety goggles or safety glasses with side
shields when operating tool. Failure to do so could result
in objects being thrown into your eyes, resulting in
possible serious injury.
■ Rotate adjustment ring to the desired setting.
• 1 - 4 For driving small screws.
• 5 - 8 For driving screws into soft material.
• 9 - 12 For driving screws into soft and hard
materials.
• 13 - 16 For driving screws in hard wood.
• 17 - 20 For driving large screws.
• 21 - 24 For heavy drilling.
BIT STORAGE
See Figure 12.
When not in use, bits provided with your drill can be placed
in the storage area located on the top of your drill as shown
in figure 12.
Page 11
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OPERATION
CHUCK REMOVAL
See Figures 13, 14, and 15.
MALLET
The chuck must be removed in order to use some
accessories. To remove:
KEYLESS
CHUCK
CHUCK
JAWS
■ Lock the switch trigger by placing the direction of rotation
2
selector in center position.
■ Insert a 5/16 inch or larger allen wrench (hex key wrench)
into the chuck of your drill and tighten the chuck jaws
securely.
2 2
2 0
■ Tap the allen wrench sharply with a mallet in a clockwise
direction. See Figure 13. This will loosen the screw in
the chuck for easy removal.
18
6
1
■ Open chuck jaws and remove allen wrench. Remove
the chuck screw by turning it in a clockwise direction.
See Figure 14. Note: The screw has left hand
threads.
ALLEN
WRENCH
■ Insert allen wrench in chuck and tighten chuck jaws
securely. Tap sharply with a mallet in a counterclockwise
direction. This will loosen chuck on the spindle. It can
now be unscrewed by hand. See Figure 15.
Fig. 13
2 2
TO RETIGHTEN A LOOSE CHUCK
2 0
The chuck may become loose on spindle and develop a
wobble. Also, the chuck screw may become loose causing
the chuck jaws to bind and prevent them from closing. To
tighten, follow these steps:
18
6
1
■ Lock the switch trigger by placing the direction of rotation
selector in center position.
Fig. 14
■ Insert allen wrench into chuck and tighten chuck jaws
securely. Tap allen wrench sharply with a mallet in a
clockwise direction. This will tighten chuck on the spindle.
■ Open the chuck jaws and remove allen wrench.
■ Tighten the chuck screw. Note: The chuck screw has
left hand threads.
2 2
2 0
18
6
1
Fig. 15
Page 12
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MAINTENANCE
DO NOT ABUSE POWER TOOLS. Abusive practices can
damage the tool, as well as the work piece.
WARNING:
When servicing use only identical Ryobi replacement
parts. Useofanyotherpartsmaycreateahazardorcause
product damage.
WARNING:
Do not attempt to modify this tool or create accessories
not recommended for use with this tool. Any such
alteration or modification is misuse and could result in a
hazardous condition leading to possible serious personal
injury.
Avoid using solvents when cleaning plastic parts. Most
plastics are susceptible to damage from various types of
commercial solvents and may be damaged by their use. Use
a clean cloth to remove dirt, oil, grease, etc.
WARNING:
Do not at any time let brake fluids, gasoline, petroleum-
based products, penetrating oils, etc., come in contact
with plastic parts. They contain chemicals that can
damage, weaken, or destroy plastics.
CAUTION:
Any repairs requiring disassembly should only be
performed by a RYOBI AUTHORIZED SERVICE
CENTER. For the repair center nearest you, call 1-800-
525-2579.
BATTERIES
Your drill's battery pack is equipped with Nickel-Cadmium
rechargeable batteries. Length of service from each charg-
ing will depend on the type of work you are doing.
■ Store and charge your batteries in a cool area.
Temperatures above normal room temperature wil
shorten battery life.
The batteries in this tool have been designed to provide
maximum trouble-free life. However, like all batteries, they
will eventually wear out. Do not disassemble the battery
pack and attempt to replace the batteries. Handling of
these batteries, especially when wearing rings and jewelry,
could result in a serious burn.
■ Never store batteries in a discharged condition. Wait for
battery to cool and charge immediately.
■ All batteries gradually lose their charge. The higher the
temperature, the quicker they lose their charge. If you
store your tool for long periods of time without using it,
recharge the batteries every month or two. This practice
will prolong battery life.
To obtain the longest possible battery life, we suggest the
following:
CAUTION:
Your drill-driver contains special high temperature
batteries to help prevent battery damage when left on
charge for extended periods of time. However, once the
batteries become fully charged, we recommend that you
unplug the charger from power supply and remove it from
battery pack.
Page 13
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OPERATOR'S MANUAL
CORDLESS DRILL-DRIVER
MODEL NOS. CTH1202K2/CTH1402K2/CTH1802
• SERVICE
Now that you have purchased your tool, should a need ever exist for repair parts or service,
simply contact your nearest Ryobi Authorized Service Center. Be sure to provide all
pertinent facts when you call or visit. Please refer to the Service Center insert or call 1-800-
525-2579 in the United States or 1-800-265-6778 in Canada for your nearest Ryobi
complete list of Authorized Service Centers.
• MODEL NO. AND SERIAL NO.
The model number of this tool will be found on a plate attached to the motor housing.
Please record the model number and serial number in the space provided below.
• HOW TO ORDER REPAIR PARTS
WHEN ORDERING REPAIR PARTS,
ALWAYS GIVE THE FOLLOWING INFORMATION:
CTH1202K2/CTH1442K2/CTH1802
• MODEL NUMBER
• SERIAL NUMBER
RYOBI TECHNOLOGIES INC.
RYOBI TECHNOLOGIES INC.
1428 Pearman Dairy Road
Anderson, SC 29622
Post Office Box 910
Cambridge, Ontario N1R 6K2
Phone 1-800-265-6778
Post Office Box 1207
Anderson, SC 29622-1207
Phone 1-800-525-2579
1980014
11-00
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