Wen 49103 User manual

Model # 49103
3.6V LITHIUM-ION
CORDLESS
SCREWDRIVER
bit.ly/wenvideo
Your new tool has been engineered and manufactured to WEN’s highest standards for dependability,
ease of operation, and operator safety. When properly cared for, this product will supply you years
of rugged, trouble-free performance. Pay close attention to the rules for safe operation, warnings,
and cautions. If you use your tool properly and for intended purpose, you will enjoy years of safe,
reliable service.
IMPORTANT:
NEED HELP? CONTACT US!
Have product questions? Need technical support?
Please feel free to contact us at:
800-232-1195
[email protected]
WENPRODUCTS.COM
(M-F 8AM-5PM CST)
3148819

TABLE OF CONTENTS
Technical Data 2
3
4
6
6
8
9
9
10
11
11
12
14
Introduction
General Safety Rules
Electrical Information
Warranty
Disposal
TECHNICAL DATA
Model Number:
Charger Input Voltage:
Charger Output Voltage:
Battery:
Rated Speed:
Rated Torque:
Chuck Capacity:
Weight:
Included Screwdriver Bits:
49103
120V AC, 60 Hz, 0.15A
5V DC, 0.5A
3.6V DC Li-ion, 1.3 Ah
180 RPM
31 in.lbs. (3.5 N.m.)
1/4 in. (6mm)
0.8 lbs
One Phillips Head Bit
Two Flat Head Bits
Exploded View and Parts List
Maintenance
Operation
Know Your Screwdriver
Specific Rules for Screwdrivers
Safety Rules for Batteries & Chargers
Charging Your Screwdriver
2

INTRODUCTION
Thanks for purchasing the WEN Cordless Screwdriver. You now have the perfect companion for inserting and
removing screws. However, before screw driving anything, please take a moment to read through this manual. It
contains important information regarding safety, assembly and operation of this product. Please keep this manual
available to all users during the entire life of the screwdriver.
Read and observe all warnings, cautions, and instructions in this manual before the operation of this screwdriver and
charger. Failure to follow instructions and safety information could result in serious injury.
QUESTIONS? PROBLEMS?
In order to answer questions and solve problems in the most efficient and speedy manner,
please contact our Customer Service at [phone], M-F 8-5 CST.
NOTE: The following safety information is not meant to cover all possible conditions and situations that may oc-
cur. WEN reserves the right to change this product and specifications at any time without prior notice.
3

WARNING: Dust generated from certain materials can be hazardous to your health.
Always operate the tool in a well-ventilated area and provide for proper dust removal.
Use dust collection systems whenever possible.
Safety is a combination of common sense, staying alert and knowing how your item works.
SAVE THESE SAFETY INSTRUCTIONS.
WARNING! Read all safety warnings and all instructions. Failure to follow the warnings and instruc-
tions may result in electric shock, fire and serious injury. To avoid mistakes and serious injury, do not
plug in your tool until the following steps have been read and understood.
WORK AREA SAFETY
1. Keep work area clean and well lit. Cluttered or dark areas invite accidents. Do not work on floor surfaces that are
slippery with sawdust or wax. Keep the ground clear of tripping hazard.
2. Do not operate power tools in explosive atmospheres, such as in the presence of flammable liquids, gases or dust.
Power tools create sparks which may ignite the dust or fumes.
3. Keep bystanders at a safe distance from the work area. Never allow children or pets near the tool.
ELECTRICAL SAFETY
1. Do not expose power tools to rain or wet conditions. Water entering a power tool will increase the risk of electric
shock.
2. Power tool plugs must match the outlet. Never modify the plug in any way. Modified plugs with non-matching
outlets will increase the risk of electric shock.
3. Check all power supplies periodically. Do not use defective cords. Damaged or entangled cords increase the risk
of electric shock.
4. Do not abuse the cord. Never use the cord for carrying, pulling or unplugging the power tool. Keep cord away
from heat, oil, sharp edges or moving parts.
PERSONAL SAFETY
1. Stay alert. Watch what you are doing and use common sense when operating a power tool. Do not use a power
tool while you are tired or under the influence of drugs, alcohol or medication. A moment of inattention while op-
erating power tools may result in serious personal injury.
2. Do no overreach. Keep proper footing and balance at all times when operating the power tool.
3. Dress appropriately. Do not wear loose clothing, gloves, neckties, or jewelry (rings, watches, etc.) when operating
the tool. Inappropriate clothing and items can get caught in moving parts and draw you in. Always wear non-slip
footwear and tie back long hair.
4. Use personal protective equipment. Wear safety goggles at all times that comply with ANSI Z87.1. Use ear pro-
tection such as plugs or muffs during extended periods of operation. Wear work gloves to protect your hands. Wear
a face mask or dust mask to fight the dust.
GENERAL SAFETY RULES
4

GENERAL SAFETY RULES
POWER TOOL OPERATION
1. Avoid accidental start-ups. Make sure the power switch is in the OFF position before connecting the plug to a
power source or carrying the tool.
2. Check power tool for damaged parts. Check for misalignment of moving parts, jamming, breakage, improper
mounting, or any other conditions that may affect the tool’s operation. Any part that is damaged should be properly
repaired or replaced before use.
3. Do not force the tool to do a job for which it was not designed. Use correct accessories and follow the instructions
for your application to prevent hazardous situations.
4. Remove adjustment tools. Always make sure all adjustment tools or wrenches are removed from the tool before
turning on the power tool.
5. Keep guards in place and in working order before operating the tool. All protection and safety devices must be
replaced after completing repair and maintenance procedures
6. Never leave a running tool unattended. Do not leave the tool until it has come to a complete stop.
POWER TOOL MAINTENANCE
1. Always disconnect the power cord plug from the electrical outlet when making adjustments, changing parts, or
storing power tools. Such preventive safety measures reduce the risk of starting the power tool accidentally.
2. Maintain power tools properly. Safely store power tools out of the reach of children. Always keep tools clean and
in good working order. Follow instructions for lubricating and changing accessories.
3. Only have your power tool serviced by a qualified repair person using only identical replacement parts. Use of
any other part can cause personal injury and damage to the tool.
BATTERY TOOL USE AND CARE
1. Recharge only with the charger specified by the manufacturer. A charger that is suitable for one type of battery
pack may create a risk of fire when used with another battery pack.
2. Use power tools only with specifically designated battery packs. Use of any other battery packs may create a risk
of injury and fire.
3. When battery pack is not in use, keep it away from other metal objects, like paper clips, coins, keys, nails, screws
or other small metal objects, that can make a connection from one terminal to another. Shorting the battery termi-
nals together may cause burns or a fire.
4. Do not place battery tools or their batteries near fire or heat. This will reduce the risk of explosion and possible
injuries.
5. Battery tools do not have to be plugged into an electrical outlet; therefore, they are always in operating condition.
Be aware of possible hazards when not using your battery tool or during charging.
6. Under abusive conditions, liquid may be ejected from the battery; avoid contact to prevent irritation or burns. If
contact accidentally occurs, flush with water. If liquid contacts eyes, additionally seek medical help.
5

1. Hold the screwdriver only by the insulated gripping surfaces during operation. Fasteners that contact hidden wir-
ing may make the exposed metal parts of the power tool “live” and could electrically shock the operator.
2. Store the screwdriver and charger indoors in dry condition. Do not expose the screwdriver or the charger to
temperatures over 104°F (40°C).
3. Be sure you always have a firm footing and hold the tool firmly. Keep hands, hair and other beloved body parts
away from the rotating components of the tool.
4. Always secure the workpiece, especially if the workpiece is small.
5. Use the appropriate drill bits suitable for the material and the operation speed.
6. Do not touch the bit or the workpiece immediately after operation. They may be hot and could burn your skin.
7. Always remove the machine from the charger immediately after re-charging is completed.
8. Do not try to open or disassemble your screwdriver. Do not open and replace the battery cells.
SAFETY RULES FOR BATTERIES & CHARGERS
CHARGING THE BATTERY
1. Before charging and using the battery, read all cautionary markings on the battery charger and the product using
the battery.
2. Only recharge the battery with the charger specified by the manufacturer. Do not use the supplied battery charger
to charge other cordless tools as undesirable risks such as fire or death may occur when used with another battery.
3. Inspect the power tool and charger before charging. Do not operate the charger with a damaged cord or plug.
4. Electrical plugs must match the outlet. Never modify the plug in any way. Do not use any adapter plugs with
grounded appliances. Do not attempt to use a step-up transformer, an engine generator or a DC power receptacle.
5. This charger is for indoor use only. Do not expose to rain or use in damp locations.
6. Do not place the tool or the charger near fire or heat. Place the charger on a flat non-flammable surface and away
from open flame and flammable materials before charging.
SPECIFIC RULES FOR SCREWDRIVERS
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: lead from lead-based paints, crystalline silica from bricks and cement and
other masonry products, and arsenic and chromium from chemically-treated lumber.
To reduce your exposure to these chemicals work in a well ventilated area, and always use dust masks that are spe-
cially designed to filter out microscopic particles
6

7. Do not charge the tool inside a box or container of any kind. The tool must be placed in a well-ventilated area
during charging. Do not allow anything to cover or clog the charging vents.
8. Do not operate the charger or the tool if it has received a sharp blow, either from being dropped or damaged.
Take it to a qualified service technician before attempting to use.
9. Never use or charge a battery if you suspect that it has been more than 12 months since the last time it was
charged. There is a high probability that the battery has already suffered dangerous damage (exhaustive discharge).
10. The battery will become warm during extended periods of use. Allow the battery pack to cool to room tem-
perature before charging it again. This will protect the life of your battery.
11. Always charge the battery pack between temperatures 32 to 86 °F (0 to 30 °C). Ideal charging temperature is 64
to 75 °F (18 to 24 °C).
12. Disconnect the charger from the power source and the battery tool when not in use. This will reduce the risk of
damage to the charger during a power surge or if metal pieces should fall into the opening.
USING THE BATTERY
1. Only use the tool with the battery specified by the manufacturer. Use of any other battery packs may result in a
risk of injury and fire.
2. Under abusive conditions, liquid may be ejected from the battery. Avoid contact with this liquid like you would a
fire or an ex-lover. If contact accidentally occurs, flush the contact area with water. If the liquid contacts your eyes,
flush with water for 10 minutes and then seek medical help. Liquid ejected from the battery may cause irritation or
burns.
3. If operating time has become excessively shorter, stop operating immediately. It may result in overheating, burn-
ing, or even an explosion.
MAINTAINING THE BATTERY AND CHARGER
1. To reduce the risk of electric shock, always unplug the charger from the outlet before attempting any maintenance
or cleaning.
2. Protect the battery charger and its cord from damage. Keep the charger and its cord away from heat, oil and
sharp edges. Keep the tool out of the reach of children.
3. Do not remove the battery pack from the tool.
4. Store the tool and battery pack in a location where temperatures will not exceed 104 °F (40 °C). This will help
prevent serious damage to the battery cells.
5. Do not disassemble the charger or the tool. Take these to a qualified service technician when service or repairs
are required. Incorrect assembly may result in electric shock or fire.
6. Do not dispose of the battery or the tool in fire or with household waste. Take it to your local recycling facility.
SAFETY RULES FOR BATTERIES AND CHARGERS
7

GROUNDING INSTRUCTIONS FOR PRODUCTS WITH GROUNDING PLUGS
WARNING: This tool must be grounded while in use to protect the operator from electric shock.
1. In the event of a malfunction or breakdown, grounding provides the path of least resistance for an electric current
and reduces the risk of electric shock. This charger is equipped with an electric cord that has an equipment ground-
ing conductor and a grounding plug.
CAUTION: In all cases, make certain the outlet in question is properly grounded. CHECK with a licensed elec-
trician or service personnel if you do not completely understand the grounding instructions or whether the tool is
properly grounded.
2. The plug must be plugged into a matching outlet that is properly installed and grounded in accordance with all
local codes and ordinances. DO NOT modify the plug provided. If it will not fit the outlet, have the proper outlet
installed by a licensed electrician.
3. Improper connection of the equipment grounding conductor can result in electric shock. The conductor with
the green insulation (with or without yellow stripes) is the equipment grounding conductor. If repair or replacement
of the electric cord or plug is necessary, DO NOT connect the equipment grounding conductor to a live terminal.
WARNING: This charger is for indoor use only. Do not expose to rain or use in damp locations.
GUIDELINES FOR USING EXTENSION CORDS
1. Make sure your extension cord is properly wired and in good condition. Always replace a damaged extension
cord or have it repaired by a qualified person before using it.
2. Protect your extension cords from sharp objects, excessive heat and damp/wet areas.
3. When using an extension cord, be sure to use one heavy enough to carry the current your product will draw. An
undersized cord will cause a drop in line voltage resulting in loss of power and overheating. The table below shows
the correct size to be used according to cord length and nameplate ampere rating. When in doubt, use a heavier
cord. The smaller the gauge number, the heavier the cord.
Use a separate electrical circuit for your tools. This circuit must not be less than a #12 wire and should be protected
with a 15 A time-delayed fuse. Before connecting the tool to the power line, make sure the switch is in the OFF posi-
tion and the electric current is rated the same as the current stamped on the motor nameplate. Running at a lower
voltage will damage the motor.
ELECTRICAL INFORMATION
AMPERAGE REQUIRED GAUGE FOR EXTENSION CORDS
25 ft. 50 ft. 100 ft. 150 ft.
0.15 A 18 gauge 16 gauge 14 gauge 12 gauge
8

KNOW YOUR SCREWDRIVER
CHARGING YOUR SCREWDRIVER
Quick Release
Chuck
LED Work Light
ON/OFF switch
Direction and Safety Switch
Battery and Charger
Indication Lights
INCLUDED ACCESSORIES :
• Charger (1)
• Belt Holster (1)
• Screwdriver Bits (3)
ATTENTION: The battery must be charged fully before the first time use.
1. Inspect the screwdriver, battery charger and power cord for any signs of damage.
2. Plug the charger into a 120V AC power source, connecting the other end to the
receptacle on the back of the screwdriver (Fig. 1 - 1).
WARNING: Always allow the power tool to cool down to room temperature be-
fore charging. This will extend the life of your battery.
3. The power indication lights (Fig. 1 - 2) indicate the power lever during charging.
Three lights means the tool is fully charged.
4. Upon full charge, disconnect the charger from the outlet, then disconnect the
charger from the tool.
ATTENTION: A battery that has not been used for an extended period of time will have reduced battery capacity.
A substantial drop in operating period per charge indicates that the battery is worn out.
WARNING: The charger and battery are specifically designed to be compatible. Do not attempt to use any other
devices to charge the battery or be charged by the charger. Never insert or allow metallic objects into the charger or
battery connections as an electrical failure and hazard may occur.
Fig. 1
1
2
Make sure all the following parts are accounted for before discarding the packaging.
If any part is missing or broken, contact our customer service at 1-800-232-1195.
9

OPERATION
LOCKING THE POWER SWITCH
Before installing bits or making any adjustments, make sure to lock the
power switch in the OFF position to prevent accidental starting.
1. To lock the power switch, place the direction and safety switch (Fig.
2 - 1) in the center position.
2. Check that the power switch can not be pressed down.
INSTALLING AND REMOVING BITS
1. Lock the power switch by placing the direction and safety switch in
the center position. Do not engage the trigger when changing bits.
2. To fit a screwdriver bit, pull the chuck (Fig. 3 - 1) outwards to release
the jaws. Fully insert the screwdriver bit (Fig. 3 - 2) and release the chuck
to lock the bit. Check to make sure that the bit is securely installed.
3. To remove a screwdriver bit, pull the chuck outwards and take out
the bit.
ON/OFF SWITCH
1. Turn on the screwdriver by squeezing the ON/OFF switch (Fig. 4 - 1).
2. Stop the tool by releasing the ON/OFF switch.
WARNING: Do not touch the bit during or immediately after opera-
tion. Always wait for the bit to stop and cool down.
CHANGING THE DIRECTION (FIG. 5)
The direction and safety switch also determines the direction of the
chuck rotation. WARNING: Never change the direction of rotation
while the trigger is pressed down. Release the switch and wait for the
chuck to stop first.
1. To select clockwise rotation, push the switch to the left
2. To select counterclockwise rotation, push the switch to the right.
POWER INDICATION LIGHTS
The three lights on top of the screwdriver (Fig. 6 - 1) indicate the bat-
tery’s remaining charge.
Three lights means the battery has full power and one light means the
battery is at low power and needs to be recharged soon.
WARNING: To avoid personal injury and damage to the tool, do not attempt to operate the tool until
the following operation instructions have been fully read and understood.
Fig. 2
1
1
1
1
2
Fig. 4
Fig. 3
Fig. 5
Fig. 6
Clockwise
Counter-
clockwise
10

This tool is permanently lubricated at the factory and requires no additional lubrication. There are no user ser-
viceable parts in your power tool. Do not try to open or disassemble your screwdriver or replace the battery cell.
WARNING: To avoid serious personal injury, always unplug the charger from the power source and
from the tool when cleaning or performing any maintenance.
WARNING: When servicing, use only identical replacement parts. Use of any other parts may create a
hazard or cause product damage. To ensure safety and reliability, all repairs should be performed by a
qualified service technician at an Authorized Service Center.
CLEANING THE TOOL
Never use water or chemical cleaners to clean your power tool. Most plastics are susceptible to damage from
various types of commercial solvents. Wipe the tool clean with a dry cloth. Keep the motor ventilation slots clean.
Keep all working controls free of dust.
WARNING: Do not at any time let brake fluids, gasoline, petroleum-based products, penetrating oils,
etc. come in contact with the plastic parts. Chemicals can damage, weaken or destroy plastic which may
result in serious personal injury.
STORING THE TOOL
Always store your power tool in a dry place. To protect the batteries from damage, do not expose the tool to tem-
peratures above 104°F (40°C).
DISPOSAL
When the product reaches the end of its lifetime, please do not dispose of it with household waste. Electrical and
electronic products are hazardous to the environment and human health due to the presence of hazardous sub-
stances. Take the product to your local recycling facility for it to be responsibly recycled to minimize impacts on
the environment.
OPERATION
MAINTENANCE
1
Fig. 7
LED WORKING LIGHT
The LED work lights (Fig. 7 - 1) are located on the front of the screw-
driver, allowing workpieces to stay illuminated when the screwdriver is
running.
11

EXPLODED VIEW & PARTS LIST
12

EXPLODED VIEW & PARTS LIST
No. Part No. Name Qty.
1 49103-001 Nameplate Sticker 1
2 49103-002 Screw 5
3 49103-003 Screw 4
4 49103-004 Right Housing 1
5 49103-005 Charger 1
6 49103-006 Screw 3
7 49103-007 Output Shaft 1
8 49103-008 Small Washer 3
9 49103-009 Steel Ball 12
10 49103-010 Shaft Sleeve 2
11 49103-011 Front Cover 1
12 49103-012 Outer Gear 2
13 49103-013 Clamp Spring 2
14 49103-014 Shaft Sleeve 2
15 49103-015 Central Shaft 1
16 49103-016 Gear Box 1
17 49103-017 Position Lock Block 1
18 49103-018 Screw 1
19 49103-019 Self-Lock Ring 1
20 49103-020 Inner Gear 1
21 49103-021 Self-Lock Pin 2
22 49103-022 Shaft Plate 1
23 49103-023 Planet Gear 3
24 49103-024 Central Shaft Plate 1
25 49103-025 Plastic Planet Gear 3
26 49103-026 Big Washer 1
27 49103-027 Motor Gear 1
28 49103-028 Pin 2
29 49103-029 Gear Box Rear Cover 1
30 49103-030 Motor 1
31 49103-031 3.6V Li-Ion Battery 1
32 49103-032 Switch Control Set 1
33 49103-033 Left Housing Set 1
34 49103-034 Safety and Direction Switch 1
35 49103-035 Trigger Plate 1
13

WEN Products is committed to building tools that are dependable for years. Our warranties are consistent with
this commitment and our dedication to quality.
LIMITED WARRANTY OF WEN CONSUMER POWER TOOLS PRODUCTS FOR HOME USE
GREAT LAKES TECHNOLOGIES, LLC (“Seller”) warrants to the original purchaser only, that all WEN con-
sumer power tools will be free from defects in material or workmanship for a period of two (2) years from date of
purchase. Ninety days for all WEN products, if the tool is used for professional use.
SELLER’S SOLE OBLIGATION AND YOUR EXCLUSIVE REMEDY under this Limited Warranty and, to
the extent permitted by law, any warranty or condition implied by law, shall be the repair or replacement of parts,
without charge, which are defective in material or workmanship and which have not been misused, carelessly
handled, or misrepaired by persons other than Seller or Authorized Service Center. To make a claim under this
Limited Warranty, you must make sure to keep a copy of your proof of purchase that clearly defines the Date of
Purchase (month and year) and the Place of Purchase. Place of purchase must be a direct vendor of Great Lakes
Technologies, LLC. Third party vendors such as garage sales, pawn shops, resale shops, or any other secondhand
merchant void the warranty included with this product. Contact [email protected] or 1-800-232-
1195 to make arrangements for repairs and transportation.
When returning a product for warranty service, the shipping charges must be prepaid by the purchaser. The prod-
uct must be shipped in its original container (or an equivalent), properly packed to withstand the hazards of ship-
ment. The product must be fully insured with a copy of the warranty card and/or the proof of purchase enclosed.
There must also be a description of the problem in order to help our repairs department diagnose and fix the
issue. Repairs will be made and the product will be returned and shipped back to the purchaser at no charge.
THIS LIMITED WARRANTY DOES NOT APPLY TO ACCESSORY ITEMS THAT WEAR OUT FROM
REGULAR USAGE OVER TIME INCLUDING BELTS, BRUSHES, BLADES, BATTERIES, ETC.
ANY IMPLIED WARRANTIES SHALL BE LIMITED IN DURATION TO TWO (2) YEARS FROM
DATE OF PURCHASE. SOME STATES IN THE U.S., SOME CANADIAN PROVINCES DO NOT AL-
LOW LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY LASTS, SO THE ABOVE LIMITA-
TION MAY NOT APPLY TO YOU.
IN NO EVENT SHALL SELLER BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAM-
AGES (INCLUDING BUT NOT LIMITED TO LIABILITY FOR LOSS OF PROFITS) ARISING FROM
THE SALE OR USE OF THIS PRODUCT. SOME STATES IN THE U.S. AND SOME CANADIAN
PROVINCES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CON-
SEQUENTIAL DAMAGES, SO THE ABOVE LIMITATION OR EXCLUSION MAY NOT APPLY TO
YOU.
THIS LIMITED WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, AND YOU MAY ALSO HAVE
OTHER RIGHTS WHICH VARY FROM STATE TO STATE IN THE U.S., PROVINCE TO PROVINCE
IN CANADA AND FROM COUNTRY TO COUNTRY.
THIS LIMITED WARRANTY APPLIES ONLY TO PORTABLE ELECTRIC TOOLS, BENCH POWER
TOOLS, OUTDOOR POWER EQUIPMENT AND PNEUMATIC TOOLS SOLD WITHIN THE CON-
TIGUOUS UNITED STATES. FOR WARRANTY COVERAGE WITHIN OTHER COUNTRIES, CON-
TACT THE WEN CUSTOMER SUPPORT LINE.
LIMITED TWO YEAR WARRANTY
14