HILTI SF 151A 15.6V Cordless Drill Driver Instruction Manual

: June 17, 2024
: HILTI

HILTI SF 151A 15.6V Cordless Drill Driver

HILTI-SF-151A-15-6V-Cordless-Drill-Driver-PRODUCT

Product Information

Product Name: SF 151-A / SFH 151-A
Model: SF 151A / SFH 151A
Manufacturer: Hilti

Product Usage Instructions

Section 1: General Notes
Before using the product, it is important to read the operating instructions thoroughly.

Section 2: Description
The product consists of the following components:

1 x SF 151A / SFH 151A Cordless Drill Driver / Cordless Hammer
Drill Driver
1 x Hilti Carrying Case
1 x SFB 150 or SFB 155 Battery Pack

The product also features a Schnellspannfutter (quick-release chuck) and various switches and controls for adjusting speed and direction.

Section 3: Safety Instructions
It is important to follow these safety guidelines while using the product:

Ensure a safe working environment.
Take necessary precautions for electrical safety.
Ensure personal safety by wearing appropriate protective gear.

ORIGINAL OPERATING INSTRUCTIONS
SF 151-A / SFH 151-A cordless drill/driver / cordless hammer drill/driver

It is essential that the operating instructions are read before the power tool is operated for the first time.
Always keep these operating instructions together with the power tool.
Ensure that the operating instructions are with the power tool when it is given to other persons.

These numbers refer to the corresponding illustrations. The illustrations can be found on the fold-out cover pages. Keep these pages open while studying the operating instructions. In these operating instructions, the designation “power tool” refers to the SF 151-A cordless drill/driver or SFH 151-A cordless hammer drill/driver with battery fitted.

Operating controls and parts 1

$HILTI-SF-151A-15-6V-Cordless-Drill-Driver-PRODUCT $1$$

Quick-release chuck
Torque and operating mode setting ring
Side handle
Control switch (with electronic speed control) & Forward/reverse switch
Motor brake
Two- or three-speed gear selector switch
Type identification plate
Grip
Battery release button (2 buttons)

General information

Safety notices and their meaning

DANGER
Draws attention to imminent danger that could lead to serious bodily injury or fatality.
WARNING
Draws attention to a potentially dangerous situation that could lead to serious personal injury or fatality.
CAUTION
Draws attention to a potentially dangerous situation that could lead to slight personal injury or damage to the equipment or other property.
NOTE
Draws attention to an instruction or other useful information.

Explanation of the pictograms and other information information

Warning signs

Obligation signs

Symbols

Location of identification data on the power tool
The type designation can be found on the type identification plate and the serial number on the side of the motor housing. Make a note of this data in your operating instructions and always refer to it when making an enquiry to your Hilti representative or service department.

Type:____

Serial no.:_____

Description

Use of the product as directed

The SF 151-A is a hand-held, cordless drill/driver for driving and removing screws and for drilling in steel, wood and masonry.
The SFH 151-A is a hand-held, cordless hammer drill/driver for driving and removing screws, for drilling in steel, wood and masonry and for ham-mer drilling in concrete and masonry.
Working on materials hazardous to the health (e.g. asbestos) is not permissible.
Do not use the battery as a power source for other unspecified appliances.
Modification of the power tool or tampering with its parts is not permissible.
To avoid the risk of injury, use only genuine Hilti accessories and insert tools.
Observe the information printed in the operating in-structions concerning operation, care and maintenance.
The power tool is designed for professional use and may be operated, serviced and maintained only by trained, authorized personnel.
This personnel must be informed of any special hazards that may be encountered. The power tool and its ancillary equip-ment may present hazards when used incorrectly by untrained personnel or when used not as directed. The working environment may be as follows: con-struction site, workshop, renovation, conversion or new construction.

Chuck

Quick-release chuck

Switches

Speed-control switch
Function selector switch
Forward / reverse switch

Grips
Pivotable side handle with depth gauge Vibration-absorbing grip

Lubrication

Oil lubrication

The items supplied include (toolbox versions):

1 Power tool with side handle
2 SFB 150 or SFB 155 battery 1 Charger
1 Operating instructions
1 Hilti toolbox

The items supplied include (a cardboard box versions):

1 Power tool with side handle
1 Operating instructions

Insert tools, accessories

$HILTI-SF-151A-15-6V-Cordless-Drill-Driver-PRODUCT $9$$

Technical data

Right of technical changes reserved.

$HILTI-SF-151A-15-6V-Cordless-Drill-Driver-PRODUCT $10$$ $HILTI-SF-151A-15-6V-Cordless-Drill- Driver-PRODUCT $11$$

NOTE
The vibration emission level given in this information sheet has been measured in accordance with a standardised test given in EN 60745 and may be used to compare one tool with another. It may be used for a preliminary assessment of exposure. The declared vibration emission level represents the main applications of the tool. However if the tool is used for different applications, with different accessories or poorly maintained, the vibration emission may differ. This may significantly increase the exposure level over the total working period. An estimation of the level of exposure to vibration should also take into account the times when the tool is switched off or when it is running but not actually doing the job. This may significantly reduce the exposure level over the total working period. Identify additional safety measures to protect the operator from the effects of vibration such as: maintain the tool and the accessories, keep the hands warm, organisation of work patterns.

Noise and vibration information (measured in accordance with EN 60745):

$HILTI-SF-151A-15-6V-Cordless-Drill-Driver-PRODUCT $12$$

Additional information in accordance with EN 60745

$HILTI-SF-151A-15-6V-Cordless-Drill-Driver-PRODUCT $13$$

Additional information in accordance with EN 60745

$HILTI-SF-151A-15-6V-Cordless-Drill-Driver-PRODUCT $14$$ $HILTI-SF-151A-15-6V-Cordless-Drill- Driver-PRODUCT $15$$ $HILTI-SF-151A-15-6V- Cordless-Drill-Driver-PRODUCT $16$$

Safety instructions

NOTE
The safety rules in section 5.1 contain all general safety rules for power tools. The instructions at 5.1.2a, 5.1.2d, 5.1.2e, 5.1.3c and 5.1.4c are not relevant to this power tool.

General safety warnings

WARNING! Read all instructions! Failure to follow all instructions listed below may result in electric shock, fire and/or serious injury. The term “power tool” in all of the warnings listed below refers to your mains-operated (corded) power tool or battery-operated (cordless) power tool. SAVE THESE INSTRUCTIONS.

Work area

Keep work area clean and well lit. Cluttered or dark areas invite accidents.
Do not operate power tools in explosive atmo-spheres, such as in the presence of flammable liquids, gases or dust. Power tools create sparks which may ignite the dust or fumes.
Keep children and bystanders away while oper-ating a power tool. Distractions can cause you to lose control.

Electrical safety

Power tool plugs must match the outlet. Never modify the plug in any way. Do not use any adapter plugs with earthed (grounded) power tools. Unmodified plugs and matching outlets will reduce risk of electric shock.
Avoid body contact with earthed or grounded surfaces such as pipes, radiators, ranges and refrigerators. There is an increased risk of electric shock if your body is earthed or grounded.
Do not expose power tools to rain or wet con-ditions. Water entering a power tool will increase the risk of electric shock.
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. Damaged or entangled cords increase the risk of electric shock.
When operating a power tool outdoors, use an extension cord suitable for outdoor use. Use of a cord suitable for outdoor use reduces the risk of electric shock.

Personal safety

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 operating power tools may result in serious personal injury.
Use safety equipment. Always wear eye pro-tection. Safety equipment such as dust mask, non-skid safety shoes, hard hat, or hearing pro-tection used for appropriate conditions will reduce personal injuries.
Avoid accidental starting. Ensure the switch is in the off-position before plugging in. Carrying power tools with your finger on the switch or plugging in power tools that have the switch on invites accidents.
Remove any adjusting key or wrench before turning the power tool on. A wrench or a key left attached to a rotating part of the power tool may result in personal injury.
Do not overreach. Keep proper footing and bal-ance at all times. This enables better control of the power tool in unexpected situations.
Dress properly. Do not wear loose clothing or jewellery. Keep your hair, clothing and gloves away from moving parts. Loose clothes, jewellery or long hair can be caught in moving parts.
If devices are provided for the connection of dust extraction and collection facilities, ensure these are connected and properly used. Use of these devices can reduce dust-related hazards.

Power tool use and care

Do not force the power tool. Use the correct power tool for your application. The correct power tool will do the job better and safer at the rate for which it was designed.
Do not use the power tool if the switch does not turn it on and off. Any power tool that cannot be controlled with the switch is dangerous and must be repaired.
Disconnect the plug from the power source and/or the battery pack from the power tool before making any adjustments, changing ac-cessories, or storing power tools. Such prevent-ive safety measures reduce the risk of starting the power tool accidentally.
Store idle power tools out of the reach of children and do not allow persons unfamiliar with the power tool or these instructions to operate the power tool. Power tools are dangerous in the hands of untrained users.
Maintain power tools. Check for misalignment or binding of moving parts, breakage of parts and any other condition that may affect the power tool’s operation. If damaged, have the power tool repaired before use. Many accidents are caused by poorly maintained power tools.
Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting edges are less likely to bind and are easier to control.
Use the power tool, accessories and tool bits etc., in accordance with these instructions and in the manner intended for the particular type of power tool, taking into account the working conditions and the work to be performed. Use of the power tool for operations different from those intended could result in a hazardous situation.

Battery tool use and care

a) Ensure the switch is in the off position before inserting battery pack. Inserting the battery pack into power tools that have the switch on invites accidents.
b) 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.
c) Use power tools only with specifically designated battery packs. Use of any other battery packs may create a risk of injury and fire.
d) 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 terminals together may cause burns or a fire.
e) Under abusive conditions, liquid may be ejec-ted from the battery, avoid contact. If contact accidentally occurs, flush with water. If liquid contacts eyes, additionally seek medical help. Liquid ejected from the battery may cause irritation or burns.

Service

Have your power tool serviced by a qualified repair person using only identical replacement parts. This will ensure that the safety of the power tool is maintained.

Additional safety instructions

Personal safety

Wear ear protectors with impact drills. Exposure to noise can cause hearing loss.
Use auxiliary handles supplied with the tool. Loss of control can cause personal injury.
Always hold the power tool securely with both hands on the grips provided. Keep the grips dry, clean and free from oil and grease.
Breathing protection must be worn if the power tool is used without a dust removal system for work that creates dust.
Improve the blood circulation in your fingers by relaxing your hands and exercising your fingers during breaks between working.
Avoid touching rotating parts. Switch the power tool on only after bringing it into position at the workpiece. Touching rotating parts, especially rotating insert tools, may lead to injury.
The appliance is not intended for use by chil-dren, by debilitated persons or those who have received no instruction or training.
Children must be instructed not to play with the appliance.
Dust from material such as paint containing lead, some wood species, minerals and metal may be harmful. Contact with or inhalation of the dust may cause allergic reactions and/or respiratory diseases to the operator or bystanders. Certain kinds of dust are classified as carcinogenic such as oak and beech dust especially in conjunction with additives for wood conditioning (chromate, wood preservative). Material containing asbestos must only be treated by specialists. Where the use of a dust extraction device is possible it shall be used.
To achieve a high level of dust collection, use a suitable vacuum cleaner of the type recommended by Hilti for wood dust and/or mineral dust together with this tool. Ensure that the workplace is well ventilated. The use of a dust mask of filter class P2 is recommended. Follow national requirements for the materials you want to work with.

Power tool use and care

Secure the workpiece. Use clamps or a vice to secure the workpiece. The workpiece is thus held more securely than by hand and both hands remain free to operate the power tool.
Check that the insert tools used are compatible with the chuck system and that they are secured in the chuck correctly.
Hold power tool by insulated gripping surfaces when performing an operation where the fastener may contact hidden wiring or its own cord. Fasteners contacting a “live” wire may make ex-posed metal parts of the power tool “live” and could give the operator an electric shock.

Electrical safety
Before beginning work, check the working area (e.g. using a metal detector) to ensure that no concealed electric cables or gas and water pipes are present. External metal parts of the power tool may become live, for example, when an electric cable is damaged accidentally. This presents a serious risk of electric shock.

Work area

Ensure that the workplace is well lit.
Ensure that the workplace is well ventilated. Exposure to dust at a poorly ventilated workplace may result in damage to the health.

Personal Protective Equipment
The user and any other persons in the vicinity must wear suitable eye protection, a hard hat, ear pro-tection, protective gloves and breathing protection while the tool is in use.

Before use

Battery use and care

NOTE

Battery performance drops at low temperatures.
Never use the battery until the cells become fully discharged.
Change to the second battery as soon as a drop in performance is noticed. Recharge the battery immediately so that it is ready for reuse.
Store the battery in a cool, dry place. Never store the battery where it is exposed to direct sunlight or sources of heat, e.g. on heaters/radiators or behind a motor vehicle windscreen.
Batteries that have reached the end of their life must be disposed of safely and correctly to avoid environmental pollution.

Charging the battery

CAUTION
Use only Hilti SFB 150 or SFB 155 batteries.

Charging a new battery for the first time
A new battery must be charged correctly for the first time before use. This will ensure that the cells form correctly. Incorrect initial charging may have a permanent, negative effect on battery capacity. Please refer to the applicable battery charger’s operating instructions for information about initial charging.

Charging a previously used battery

CAUTION

Use only the Hilti chargers listed under “Insert tools, accessories”.
Ensure that the outer surfaces of the battery are clean and dry before inserting it in the corresponding charger.
Read the operating instructions for the charger for further information about the charging procedure.

Recharging NiCd and NiMH batteries
NiCd and NiMH batteries should be allowed to reach full charge each time they are charged.

Fitting the battery to the power tool

CAUTION
Before fitting the battery, check that the power tool is switched off and that the safety lock is engaged (forward/reverse switch in the middle position). Use only the Hilti batteries approved for use with this power tool.

Push the battery into the power tool from below until it is heard to engage with a click.
CAUTION A falling battery may present a risk of injury to yourself or others. Check that the battery is seated securely in the power tool.

Removing the battery 2

Press both battery release buttons.
Pull the battery downwards out of the power tool.

Operation

Setting forward or reverse rotation 3

NOTE
The forward/reverse switch is used to select the direction of rotation of the drive spindle. An interlock prevents switching while the motor is running. The control switch is locked when the forward / reverse switch is in the middle position. Push the forward /reverse switch to the right (power tool held in working direction) to select forward rotation. Push the forward / reverse switch to the left (power tool held in working direction) to select reverse rotation.

Speed selection

Speed selection using the 2-speed switch (SF 151-A) 4

NOTE
The mechanical 2-speed gear switch can be used to select the speed range required.

Speeds with fully-charged battery:

1st gear: 0-390 r.p.m. or
2nd gear : 01455 r.p.m.

Speed selection using the 3-speed switch (SFH 151-A) 5

NOTE
The mechanical 3-speed gear switch can be used to select the speed range required. Speeds with fully-charged battery: 1st gear: 0-370 r.p.m., 2nd gear: 0-1380 r.p.m., 3rd gear: 0-2000 r.p.m.

Switching on / off

CAUTION
To avoid damage to the power tool, the switch must be released (switched off) if the motor is stalled for more than 2-3 seconds. After stalling, the power tool must be allowed to run for 2 minutes under no load. The speed of the power tool can be controlled smoothly (increased from zero to maximum) by pressing the control switch gradually.

Drilling

CAUTION
In the event of the drill bit sticking, the power tool will pivot about its own axis. Always use the power tool with the side handle fitted and hold it securely with both hands.
CAUTION
Use clamps or a vice to secure the workpiece. The workpiece is thus held more securely than by hand and both hands remain free to operate the power tool.

Adjusting the side handle 6

Release the side handle clamping band by turning the handle counterclockwise.
Pivot the side handle into the desired position.
Tighten the side handle by turning the grip clock-wise.

Fitting the drill bit

Set the forward / reverse switch to the middle position or remove the battery from the power tool.
Check that the connection end of the drill bit is clean. Clean the connection end if necessary.
Insert the drill bit in the chuck and then turn the chuck sleeve until tight.
Check that the drill bit is held securely (check by pulling).

Drilling

Move the forward / reverse switch to the “For-ward” position.
Turn the torque and operating mode setting ring to the drilling symbol.

Removing the drill bit

CAUTION
Wear protective gloves when changing insert tools as the insert tools get hot during use.

Set the forward / reverse switch to the middle position or remove the battery from the power tool.
Open the quick-release chuck.
Pull the insert tool out of the chuck.

Hammer drilling (SFH 151-A)

Fitting the drill bit

Set the forward / reverse switch to the middle position or remove the battery from the power tool.
Check that the connection end of the drill bit is clean. Clean the connection end if necessary.
Insert the drill bit in the chuck and then turn the chuck sleeve until tight.
Check that the drill bit is held securely (check by pulling).

Hammer drilling

CAUTION
Use the side handle. Hold the power tool securely with both hands, one hand on the grip and the other on the side handle.

Move the forward / reverse switch to the “For-ward” position.
Turn the torque and operating mode setting ring to the hammer drilling symbol.

Removing the drill bit

CAUTION
Wear protective gloves when changing insert tools as the insert tools get hot during use.

Set the forward / reverse switch to the middle position or remove the battery from the power tool.
Open the quick-release chuck.
Pull the insert tool out of the chuck.

Screwdriving

Fitting the bit / bit holder

Set the forward / reverse switch to the middle position or remove the battery from the power tool.
Fit the bit holder in the chuck.
Fit the bit in the bit holder.

Screwdriving

Set the forward / reverse switch to the desired direction of rotation.
Turn the torque and operating mode setting ring to the desired torque value.

Removing the bit / bit holder

Set the forward / reverse switch to the middle position or remove the battery from the power tool.
Remove the bit from the bit holder.
Remove the bit holder from the chuck.

Care and maintenance

CAUTION
Before beginning cleaning, remove the battery from the power tool in order to prevent unintentional starting.

Care of insert tools
Clean off dirt and dust deposits adhering to the insert tools and protect them from corrosion by wiping the insert tools from time to time with an oil- soaked rag.

Care of the power tool

CAUTION

Keep the power tool, especially its grip surfaces, clean and free from oil and grease. Do not use cleaning agents which contain silicone.
The outer casing of the power tool is made from impact-resistant plastic. Sections of the grip are made from a synthetic rubber material.
Never operate the power tool when the ventilation slots are blocked. Clean the ventilation slots carefully using a dry brush.
Do not permit foreign objects to enter the interior of the power tool. Clean the outside of the power tool at regular intervals with a slightly damp cloth.
Do not use a spray, steam pressure cleaning equipment or running water for cleaning. This may negatively affect the electrical safety of the power tool.

Maintenance

WARNING
Repairs to the electrical section of the power tool may be carried out only by trained electrical spe-cialists.

Check all external parts of the power tool for damage at regular intervals and check that all controls operate faultlessly. Do not operate the power tool if parts are damaged or when the controls do not function faultlessly. If necessary, the power tool should be repaired by Hilti Service.

Care of the battery

Keep the electrical contacts free from dust, oil and grease. If necessary, use a clean cloth to clean the contact surfaces.
Do not continue to operate the power tool until the battery is completely discharged as this may damage the battery cells.
Recharge the battery as soon as a drop in performance is noticed. The battery should be given a conditioning charge at monthly intervals or, at the latest, when battery capacity drops significantly. With the Hilti C 7/24, SFC 7/18, SFC 7/18H and TCU 7/36 chargers, this is done by charging the battery for 24 hours in normal mode or for 12 hours in conditioning mode.
The Hilti C 7/36-ACS charger determines automatically when an initial charge or conditioning charge is necessary. If battery capacity is still unsatisfactory after the conditioning charge, we recommend that the battery is returned to Hilti for diagnosis.

Checking the power tool aftercare and maintenance
After carrying out care and maintenance work on the power tool, check that all protective and safety devices are fitted and that they function faultlessly.

Troubleshooting

$HILTI-SF-151A-15-6V-Cordless-Drill-Driver-PRODUCT $19$$

Disposal

CAUTION
Improper disposal of the equipment may have serious consequences: The burning of plastic components generates toxic fumes which may present a health hazard. Batteries may explode if damaged or exposed to very high temperatures, causing poisoning, burns, acid burns or environmental pollution. Careless disposal may permit unauthorized and improper use of the equipment. This may result in serious personal injury, injury to third parties and pollution of the environment.

CAUTION
Dispose of defective batteries without delay. Keep them out of reach of children. Do not attempt to open or dismantle batteries and do not dispose of them by incineration.

CAUTION
Dispose of the batteries in accordance with national regulations or return them to Hilti.

Most of the materials from which Hilti power tools or appliances are manufactured can be recycled. The materials must be correctly separated before they can be recycled. In many countries, Hilti has already made arrangements for taking back your old power tools or appliances for recycling. Please ask your Hilti customer service department or Hilti representative for further information.

For EC countries only
Disposal of electric tools together with household waste is not permissible. In observance of European Directive 2002/96/EC on waste electrical and electronic equipment and its implementation in accordance with national law, electric tools that have reached the end of their life must be collected separately and returned to an environmentally compatible recycling facility.

Manufacturer’s warranty – tools

Hilti warrants that the tool supplied is free of defects in material and workmanship. This warranty is valid so long as the tool is operated and handled correctly, cleaned and serviced properly and in accordance with the Hilti Operating Instructions, and the technical system is maintained. This means that only original Hilti consumables, components and spare parts may be used in the tool.

This warranty provides the free-of-charge repair or replacement of defective parts only over the entire lifespan of the tool. Parts requiring repair or replace-ment as a result of normal wear and tear are not covered by this warranty.

Additional claims are excluded, unless stringent national rules prohibit such exclusion. In particular, Hilti is not obligated for direct, indirect, incidental or consequential damages, losses or expenses in connection with, or by reason of, the use of, or inability to use the tool for any purpose. Implied warranties of merchantability or fitness for a particular purpose are specifically excluded.

For repair or replacement, send the tool or related parts immediately upon discovery of the defect to the address of the local Hilti marketing organization provided. This constitutes Hilti’s entire obligation with regard to warranty and supersedes all prior or contempor-aneous comments and oral or written agreements concerning warranties.

EC declaration of conformity

Designation : Cordless drill/driver / cordless hammer drill/driver
Type : SF 151ತA / SFH 151ತA
Year of design : 2004

We declare, on our sole responsibility, that this product complies with the following directives and standards: until 28.12.2009 98/37/EC, as of 29.12.2009 2006/42/EC, 2004/108/EC, 2006/66/EC, EN 60745-1, EN 60745-2-1, EN 60745-2-2, EN 55014-1, EN 55014-2, EN 61000-6-3.

Hilti Corporation

Dietmar Sartor
Head of BA Quality and Process Management Business Area Electric Tools & Ac- accessories 10 2009

Roman Haenggi
Senior Vice President Business Unit Cordless and Cutting 10 2009