TRUPER ROTI-20A 20V Cordless Hammer Drill User Manual

Manual
ROTI-20A Cordless hammer drill / drill / driver
20 V 1/2”
Chuck

ROTI-20A 20V Cordless Hammer Drill

Applies for:

CAUTION
Read this manual thoroughly before using the tool.
CAUTION
To gain the best performance of the tool, prolong the duty life, make the Warranty valid if necessary, and to avoid hazards of fatal injuries please read and understand this Manual before using the tool.
Keep this manual for future references.
The illustrations in this manual are for reference only. They might be different from the real tool.

Technical Data

ROTI-20A

minute
Rotation| Forward – Reverse
Torque| Strong: 24 Nm / Soft: 8 Nm
Boring capacity| Concrete: 0.5” | Wood: 1” | Metal: 0.5”
Insulation| Class II
IP20
IP Grade
Battery| Ion-Lithium 20 V **2 Ah
Charging time: 90 min approximately
Charger| Input:
Voltage: 127 V
Output: 12 V **– 21 V ****1.5 A
Frequency: 60 Hz
Power: 40 W

Power Cord Grips of the charger used in this product: Type “Y”. Tool build quality: Class III.
Charger Build Quality: Reinforced Insulation.
WARNING Avoid the risk of electric shock or severe injury. When the power cable gets damaged it should only be replaced by the manufacturer or at a Authorized Service Center. The build quality of the electric insulation is altered if spills or liquid gets into the tool while in use.
Do not expose to rain, liquids and/or dampness.
WARNING Before gaining access to the terminals all power sources should be disconnected.

Power Requirements

WARNING Tools with double insulation and reinforced insulation are equipped with a polarized plug (one prong is wider than the other). This plug will only fit in the right way into a polarized outlet. If the plug cannot be introduced into the outlet, reverse the plug. If it still doesn’t fit, call a qualified electrician to install for you a polarized outlet. Do not alter the plug in any way. Both insulation types eliminate the need of both a grounded third power cord with three prongs or a grounded power connection. WARNING When using an extension cable, verify the gauge is enough for the power that your product needs. A lower gauge cable will cause voltage drop in the line, resulting in power loss and overheating. The following table shows the right size to use depending on cable’s length and the ampere capability shown in the tool’s nameplate. When in doubt use the next higher gauge.

Ampere Capacity| Number of Conductors| Extension gauge from 5.9’ to 49.2’| Extension gauge higher than 49.2’
---|---|---|---
from 0 A and up to 10 A| 3 (one grounded)| 18 AWG(*)| 16 AWG
from 10 A and up to 13 A| 16 AWG| 14 AWG
from 13 A and up to 15 A| 14 AWG| 12 AWG
from 15 A and up to 20 A| 8 AWG| 6 AWG

• It is safe to use only if the extensions have a built-in artifact for over current protection.
  AWG = American Wire Gauge. Reference: NMX-J-195-ANCE
  WARNING
  When operating power tools outdoors, use a VOLTECK grounded extension cable labeled “For Outdoors Use”. These extensions are especially designed for operating outdoors and reduce the risk of electric shock.

**** General power tool safety warnings

**WARNING! Read carefully all safety warnings and instruction listed below. Failure to comply with any of these warnings may result in electric shock, fire and / or severe damage. Save all warnings and instructions for future references.
Work area
Keep your work area clean, and well lit.
Cluttered and dark areas may cause accidents.
Never use the tool in explosive atmospheres, such as in the presence of flammable liquids, gases or dust.
Sparks generated by power tools may ignite the flammable material.
Keep children and bystanders at a safe distance while operating the tool.
Distractions may cause loosing control.
Electrical Safety
The tool plug must match the power outlet. Never modify the plug in any way. Do not use any adapter plugs with grounded power tools.
Modified plugs and different power outlets increase the risk of electric shock.
Avoid body contact with grounded surfaces, such as pipes, radiators, electric ranges and refrigerators.
The risk of electric shock increases if your body is grounded.
Do not expose the tool to rain or wet conditions.
Water entering into the tool increases the risk of electric shock.
Do not force the cord. Never use the cord to carry, lift or unplug the tool. Keep the cord away from heat, oil, sharp edges or moving parts.
Damaged or entangled cords increase the risk of electric shock.
When operating a tool outdoors, use an extension cord suitable for outdoor use.
Using an adequate outdoor extension cord reduces the risk of electric shock.
If operating the tool in a damp location cannot be avoided, use a ground fault circuit interrupter (GFCI) protected supply.
Using a GFCI reduces the risk of electric shock.
Personal safety
Stay alert, watch what you are doing and use common sense when operating a tool. Do not use a power tool while you are tired or under the influence of drugs, alcohol or medication.
A moment of distraction while operating the tool may result in personal injury.
Use personal protective equipment. Always wear eye protection.**
Protective equipment such as safety glasses, anti-dust mask, non-skid shoes, hard hats and hearing protection used in the right conditions significantly reduce personal injury.

Prevent unintentional starting up. Ensure the switch is in the “OFF” position before connecting into the power source and / or battery as well as when carrying the tool.
Transporting power tools with the finger on the switch or connecting power tools with the switch in the “ON” position may cause accidents.
Remove any wrench or vice before turning the power tool on.
Wrenches or vices left attached to rotating parts of the tool may result in personal injury.
Do not overreach. Keep proper footing and balance at all times.
This enables a better control on the tool during unexpected situations.
Dress properly. Do not wear loose clothing or jewelry. Keep hair, clothes and gloves away from the moving parts.
Loose clothes or long hair may get caught in moving parts.
If you have dust extraction and recollection devices connected onto the tool, inspect their connections and use them correctly.
Using these devices reduce dust-related risks.
Power Tools Use and Care
Do not force the tool. Use the adequate tool for your application.
The correct tool delivers a better and safer job at the rate for which it was designed.
Do not use the tool if the switch is not working properly.
Any power tool that cannot be turned ON or OFF is dangerous and should be repaired before operating.
Disconnect the tool from the power source and / or battery before making any adjustments, changing accessories or storing.
These measures reduce the risk of accidentally starting the tool.
Store tools out of the reach of children. Do not allow persons that are not familiar with the tool or its instructions to operate the tool.
Power tools are dangerous in the hands of untrained users.
Service the tool. Check the mobile parts are not misaligned or stuck. There should not be broken parts or other conditions that may affect its operation. Repair any damage before using the tool.
Most accidents are caused due to poor maintenance to the tools.
Keep the cutting accessories sharp and clean.
Cutting accessories in good working conditions are less likely to bind and are easier to control.
Use the tool, components and accessories in accordance with these instructions and the projected way to use it for the type of tool when in adequate working conditions.
Using the tool for applications different from those it was designed for, could result in a hazardous situation.
Battery tool Use and Care
Recharge only with the charger specified by .
A charger that is suitable for one type of battery pack may create a risk of fire when
used with another battery pack.
Use power tools only with specifically designated battery packs.
Use of any other battery packs may create a risk of injury and fire.
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.
Under abusive conditions, liquid may be ejected 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
Repair the tool in a Authorized Service Center using only identical spare parts.
This will ensure that the safety of the power tool is maintained.
This tool is in compliance with the Official Mexican Standard (NOM – Norma Oficial Mexicana).

Safety warnings for hammer drills / drills / drivers

Battery and Charger
DANGER

• Use only the Trooper charger included to charge the battery. Using a different charger may cause fire or injury hazard.

DANGER

• Use only batteries specifically designed for the tool. Different batteries could generate risk of injury or fire.

DANGER

• Do not use the charger outdoors.
• When charging, obey the “+/-“ polarity.
• Never recharge a leaking battery or that is visibly damaged.
• Do not use batteries or a charger for purposes different that it was designed for.
• Do not modify the battery contacts or the chargers.
• Do not expose the battery pack or the tool to fire or extreme temperatures. Exposure to fire or temperatures above 130 °C can cause an explosion.

DANGER

• Never expose the batteries to fire or impact. They could explode.

CAUTION

• Batteries shall be kept away from metallic objects like clips, coins, keys, nails, screws or other type of object making contact with the terminals. It would cause a short circuit and burns or fire. They should be kept clean, dry and in good repair.

CAUTION

• Under extreme conditions the battery liquid could spill out. Avoid any contact. If an accidental contact happens clean with enough water. If the battery liquid comes into contact with your eyes, clean with enough water and immediately go see the doctor. Liquid expelled from the batteries could cause irritation or burns.
• Remove battery when not in use.;

CAUTION

• If the battery will be stored for long periods of time, keep an intermediate charge (40%) to maximize its useful life. Do not leave it completely charged for long periods of time, or leave it charging when not in use.
• Keep batteries away from children reach.
• Do not discard batteries together with household trash.
  Go to a specialized center for it’s recycling.

Choose the right bit

CAUTION

• Choose the right bit for the work piece.
  It reduces the risk of severe injury and makes the job easier.

• To work on metal or plastic, use bits suitable for metal. Sizes encompass a minimum of 0.06” and up to the chuck maximum capacity.

• On wood, use regular bits suitable for wood. In any case, to drill 0.25” or smaller orifices, use bits designed to drill on metal.

• Do not try using bits exceeding the chuck capacity.

Before operating the tool

• Take your time to assess the job to be done and double check you are paying attention to the necessary caution advices before starting to drill.
• Adjust correctly the bit into the chuck.

DANGER

• Before boring a wall, floor or ceiling, double check there are no hidden objects, like cables, power conductors or pipes.

DANGER

• Verify the switch is in the OFF position before inserting the battery. Otherwise it will start working unexpectedly, causing severe injuries.

DANGER

• Turn off and disconnect the tool before reversing the chuck rotation direction, as well as setting up or replacing a bit. Use the auxiliary handles, if supplied with the tool. Loosing control may cause personal injuries.

While operating the tool

• Hold the tool by it’s isolated surfaces designed for that purpose, especially when making jobs where the bit might contact hidden making jobs where the bit might contact hidden wiring or by their own cord. Contact with a power cable makes the metallic parts of the tool will be energized as well and produce a short circuit to the operator.
• Do not submit the tool to excessive loads.

CAUTION

• If the bit gets stuck in the work piece, turn off the tool immediately. Then, remove the bit from the work piece. Do not try to remove stuck bits turning on and off the tool.
• Do not put excessive pressure on the tool to accelerate boring. Otherwise the bit will get damaged and the tool efficiency will diminish as well as it working life.

WARNING

• The largest the bit diameter, the reactive force is higher. The reactive force is higher causing loss of control over the tool. To prevent this possibility hold firmly the tool with both hands, and keep good footing while boring at 90°.
• Stay alert and ready to relax the force when the bit goes through the material. Sudden movements can break the bit or damage the tool.

CAUTION

• Do not touch the bit or the orifices immediately after drilling. Wait for them to cool off to manipulate. Do not try to cool them with water or oil.
• Before leaving the tool aside make sure all the moving parts have come to a complete stop.
• Avoid setting the tool where there are particles and / or dust immediately after use. These can get absorbed inside the tool mechanism and damage the machine.
• Wear hearing protectors when making jobs with a noise level higher than 85 dB
• Use dust mask and dust extractor if necessary. Remember that materials such as asbestos, paint with lead, additives, some types of wood, metals or minerals are highly toxic.
• Use safety glasses.

The wireless hammer drill is useful to both boring orifices with the impact mode as well as screwing and unscrewing.

Parts

Preparation

Battery charge

1. Plug in the charger in a 127 Power outlet. (Green charging indicator light will turn on).
2. Insert the battery into the charger sliding it as shown in the figure. The green light will turn off and the red light should be on indicating the charge has initiated.
3. When the battery is completely charged, the green light will be on and the red light will be off.
4. Disconnect the charger from the power once the charge is completed.

Battery failures

• If the green light flashes it is a sign that the battery has a delay caused by the heat; wait until the battery temperature is in the proper range to be able to charge.
• The red light remains on exceeding the recommended charging time or if the red and green light flash alternately it is a sign that the battery is defective; you must replace it or use a Authorized Service Center.

Battery use

• Longer life and better performance can be obtained if the battery unit is charged in room temperature between 5ºC and 45ºC Allow a hot battery pack to cool before charging.
• The charger and battery unit may heat up slightly during the charging process. This is normal and does not represent any problem. To make it easier to cool the battery unit after use, avoid placing the charger or battery unit in a warm place, such as a metal shed or trailer without thermal insulation.

Belt Clip Assembly

• Remove the screw (A) that is fixed to the base of the tool.
• Place the belt clip on either side of the tool using only the provided screw (A), for adapting to right- or left-handed users.
• If you do not want to use the belt clip, you can remove it from the tool.
• To move the belt hook, remove the screw (A) that holds it in place and then reassemble it on the opposite side. Be sure to firmly adjust the screw.

Tool/battery protection system
CAUTION

• The tool is equipped with a system that automatically stops the tool to prolong both its useful life and that of the batteries, this happens in the following cases:
  Overload. When the tool is forced, the battery consumes abnormally high current levels. Suspend overexertion work and turn the tool back on.
  Overheating. Let the tool and battery cool before turning it back on.
  Over-discharge. The battery level is low. In this case, remove the battery from the tool and charge it.

Batteries

• To install the battery in the tool handle, align the battery unit with the rails on the inside of the tool handle and slide it into the handle until the battery unit is firmly inserted into the tool; check that ir does not come off by itself.
• To remove the battery from de tool, press the release button (B) and firmly pull the battery out of the tool handle.
• To make sure the battery is charged, press the indicator button (C). The color of the light indicates the charge level.
• To make sure the battery is charged, press the indicator button on the battery (C) (For batteries that include it); or mount the battery in the tool and press the switch (D) to check the battery level indicator on the tool (E).

Remaining battery capacity (Indicator on the tool)
Battery indicator

Tool indicator

NOTE: Depending on the conditions of use and ambient temperature, the indication may differ slightly from the actual capacity.
Bits or adaptors assembly

• Using one hand, hold firmly the handle and with your other hand loosen the base turning in a counterclockwise direction.
• Insert the bit until it stops or remove it whichever the situation.
• Turn the base clockwise to fasten the bit.

Direction of rotation

• To rotate forward release the trigger and press the direction button on the side where marks point towards the chuck.
• To reverse the turn, press it on the other side.
• The hammer drill will get blocked if the button sits in the middle.

CAUTION

• The first time you turn on the hammer drill and after reversing rotation you might hear a click. This in normal and does not represent a problem.

CAUTION

• To prevent damaging the tool, never reverse the rotation direction while the hammer drill is running.

Speed selection

• The two speeds in the drill work in a similar manner to those used in cars.
• Low speed (1) will give a lot of torque (torsion power). Use this speed when starting to drill large orifices, be it wood or metal. This will prevent the bit to get stuck.
• High speed (2) has a reduced torque but lets the drill operate with higher revolutions per minute, that make the tool when in the drill function to bore faster lean metal or wood.

Change from hammer drill to drill

• To bore concrete, tiled floor or materials similarly hard, turn the torque  regulator into the IMPACT ( matching with the top mark) position. The bit will strike and rotate at the same time onto the material.
• To bore metal or plastic turn the impact-rotation selector chuck into the CORDLESS HAMMER DRILL ( matching with the top mark) position to make the bit rotate against the material.

WARNING

• Do not try to drill metal, wood or plastic with the torque regulator in the IMPACT mode. Otherwise the tool efficiency would diminish and the bit tip will get damaged.

Torque adjust to drill screw
• To select the desired torque level to screw drive, turn the torque regulator until it matches the corresponding number with the upper mark:
From 1 to 3 for small screws,
From 4 to 7 for screws on soft materials,
From 8 to 11 for screws on soft and hard material,
From 12 to 15 for screws on hard wood,
On 16 to 18, for larger screws.

CAUTION

• The torque level necessary depends on the type of screw to be used and the material onto which you are working. If in doubt use a lower torque and increase gradually until reaching the right one. An adequate torque prevents damaging the tool.

Start Up

Turn On and operation control

• The switch allows selecting the adequate speed for each job. The more you push the switch the fastest the hammer drill will run.
• The switch is also built with a braking function. When releasing the trigger, the hammer drill will immediately stop and you will be able to use it as a manual screwdriver to give a screw an extra turn.

Screwing – Unscrewing

• It is recommended to first bore a “pilot orifice”; slightly longer and barely narrower than the measurements of the screw. This orifice will be the entry guide for the screw and will make it easier to tighten. When screwing near the edge of a work piece, a pilot orifice prevents the wood from cracking.
• Use the adequate type of tip for each screw head to prevent the screw from sticking over from the surface.
• If inserting the screw gets difficult remove and try to bore a slightly longer or wider orifice. However keep in mind there should be enough material to fasten the screw. If you reinitiate the screwing operation in an already-made orifice, start threading it by hand. If still difficult to thread the screw (as with noble woods), try using lubricants like soap. Liquid soap is more useful.
• Always apply enough pressure on the hammer drill to prevent the screw head to slide. It is easy that the screw head gets damaged, making it difficult to completely get inserted or even to remove it.

Drilling

• When trying to bore large diameter orifices it is better to start with a narrow bit and then replace it with the required size. This prevents overloading the hammer drill.
• When drilling deep orifices remove the bit a little and regularly while boring to allow the shavings to be correctly expelled from the orifice.

CAUTION

• If the bit gets stuck, immediately release the switch to prevent damaging the tool. Try to release the bit reversing the operation direction.
• Keep the hammer drill aligned regarding the orifice.
  Ideally the bit shall enter the work piece perpendicularly. If the angle is changed while drilling could make the bit to break and block the orifice or causing personal injury.

Additional recommendations

• Use the adequate speed for each job: do not try to bore at low speeds or to screw at high speeds.
• If the operation overloads the hammer drill, take it out and repeat the operation applying less strength.
• Use low speeds to start bores where there is no support point; on plastic or metal; when screwing, boring ceramic or any other application that requires a high torque. Use high speeds to drill woods and using polishing devices. To get a longer hammer drill duty life, use the variable speed control.

Troubleshooting

position.
The trigger can be pushed but the chuck stops operations.| • Uncharged battery.| • Charge battery.
The torque regulator stops operation.| • Regulator is adjusted into a inadequate torque.| • Adjust the regulator into a torque that allows the job. Try with the next torque level.
The battery leaks.| • Small leaking can be present in extreme temperatures or after heavy use. This is normal.
• Intense leaking or very evident shows a damaged battery.| • Immediately clean the liquid from skin or clothing
using water and soap.
• Replace the battery immediately.
The battery is not charging and the charger light is not
on.| • The battery is wrongly fit into the charger.
• The charger is not correctly plugged into the power outlet.| • Insert correctly the battery to the charger.
• Double-check the battery is correctly connected into
the power outlet.
The hammer drill gets hot after long periods or work.| • This heating is normal. It absorbs the energy from the motor cogs and the electricity generated during the job.| • Allow the hammer drill to cool off for 5 minutes.
The battery gets hot while operating.| • This heating is normal. The energy absorbed from the battery makes this warning.| • Stop the drill around 5 minutes to allow the battery
to cool off.
The battery gets hot while charging.| • This type of warming is normal. Results from the chemical reactions happening.|
The charger gets hot while charging.| • This type of warming is normal resulting from tension regulation.|

Maintenance

Cleansing and care

• Keep the air vents clean and free of obstructing debris to guarantee an adequate motor cooling.
• Regularly inspect all the assembly screws. Double check they are correctly tightened. In the event one screw is loose, tighten immediately.
• Use a clean and soft cloth to clean the tool. Never use alcohol or detergent. Disconnect the tool and remove the battery before cleaning.

Service

• Servicing the tool shall be carried out only in a Authorized Service Center.
• Service and maintenance carried out by non – qualified people may result dangerous and could cause personal damage. It also makes the Warranty void.

Environmental protection

Power tools and batteries should not be disposed off together with household trash. Please deliver this tool and the batteries to its adequate recycling in the authorized disposal sites. Verify the nearest recycling center in your community.

Authorized Service Centers

In the event of any problem contacting a Truper Authorized Service Center, please see our webpage www.truper.com to get an updated list, or call our toll-free numbers 800 690-6990 or 800 018-7873 to get information about the nearest Service Center.

AGUASCALIENTES
DE TODO PARA LA CONSTRUCCIÓN
GRAL. BARRAGÁN #1201, COL. GREMIAL, C.P. 20030,
AGUASCALIENTES, AGS.
TEL.: 449 994 0537| QUERÉTARO
ARU HERRAMIENTAS S.A DE C.V.
AV. PUERTO DE VERACRUZ #110, COL. RANCHO DE
ENMEDIO, C.P. 76842, SAN JUAN DEL RÍO, QRO.
TEL.: 427 268 4544
---|---
COLIMA
BOMBAS Y MOTORES BYMTESA DE MANZANILLO
BLVD. MIGUEL DE LA MADRID #190, COL. 16 DE
SEPTIEMBRE, C.P. 28239, MANZANILLO, COL.
TEL.: 314 332 1986 / 332 8013| SAN LUIS
POTOSÍ
FIX FERRETERÍAS
AV. UNIVERSIDAD #1850, COL. EL PASEO, C.P. 78320,
SAN LUIS POTOSÍ, S.L.P. TEL.: 444 822 4341
DURANGO
TORNILLOS ÁGUILA, S.A. DE C.V.
MAZURIO #200, COL. LUIS ECHEVERRÍA, DURANGO,
DGO.
TEL.: 618 817 1946 / 618 818 2844| SONORA
FIX FERRETERÍAS
CALLE 5 DE FEBRERO #517, SUR LT. 25 MZ. 10, COL.
CENTRO, C.P. 85000, CD. OBREGÓN, SON.
TEL.: 644 413 2392
GUERRERO
CENTRO DE SERVICIO ECLIPSE
CALLE PRINCIPAL MZ.1 LT. 1, COL. SANTA FE, C.P. 39010,
CHILPANCINGO, GRO.
TEL.: 747 478 5793| TABASCO
SUCURSAL VILLAHERMOSA
CALLE HELIO LOTES 1, 2 Y 3 MZ. #1, COL. INDUSTRIAL,
2A ETAPA, C.P. 86010, VILLAHERMOSA, TAB.
TEL.: 993 353 7244

Warranty policy

Warranty. Duration: 2 year. Coverage: parts, components and workmanship against manufacturing or operating defects, except if used under conditions other than normal; when it was not operated in accordance with the instructive; was altered or repaired by personnel not authorized by Truper® . To make the warranty valid, present the product, stamped policy or invoice or receipt or voucher, in the establishment where you bought it or in Corregidora 22, Centro, Cuauhtémoc, CDMX, 06060, where you can also purchase parts, components, consumables and accessories. It includes the costs of transportation of the product that derive from its fulfillment of its service network. . Phone number 800-018-7873. Made in China. Imported by Truper, S.A. de C.V. Parque
Industrial 1, Parque Industrial Jilotepec, Jilotepec, Edo. de Méx. C.P. 54257,
Phone number 761 782 9100.

Stamp of the business. Delivery date:
www.truper.com
10-2022

Documents / Resources

| TRUPER ROTI-20A 20V Cordless Hammer Drill [pdf] User Manual
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