TRUPER ROTO-1/2A7 Hammer Drill User Manual

: October 30, 2023
: TRUPER

Table of Contents

TRUPER ROTO-1/2A7 Hammer Drill
Product Information
Product Usage Instructions
Technical Data
General power tool safety warnings
Safety warnings for drills and hammer drills
Assembly
Maintenance
Documents / Resources
- Read User Manual Online (PDF format)
- Download This Manual (PDF format)

TRUPER ROTO-1/2A7 Hammer Drill

TRUPER ROTO-1 2A7 Hammer Drill

Product Information

The ROTO-1/2A7 is a hammer drill with a power of 0.87 Hp and a chuck size of 1/2 inches. It operates at a voltage of 127 V and frequency of 60 Hz, with a current of 4.7 A. The drill has a maximum speed of 3,100 RPM and the hammer drill has a maximum speed of 50,000 strokes/minute. It has a drill capacity of 1/2 inch for metal, concrete, and wood. The tool has a duty cycle of 30 minutes work per 15 minutes idle, with a maximum usage time of 3 hours per day. It is classified as Class II and has an IP20 grade. The power cord grips used in this product are Type Y and the tool build quality has reinforced insulation. The motor winding has thermal insulation of Class E.

Product Usage Instructions

Before using the ROTO-1/2A7 hammer drill, read the manual thoroughly to understand its technical data, safety warnings, parts, assembly, start-up, maintenance, and warranty policy. Keep the manual for future reference. To ensure the best performance of the tool, prolong its duty life, make the warranty valid if necessary, and avoid hazards of fatal injuries, it is important to read and understand the manual before using the tool. When using the tool, avoid exposing it to rain, liquids and/or dampness. Before gaining access to the terminals, disconnect all power sources. When using an extension cable, verify that its gauge is sufficient for the power that the tool needs. A lower gauge cable will cause voltage drop in the line, resulting in power loss and overheating. Refer to the table in the manual to determine the right size of extension cable to use depending on the cable’s length and the ampere capability shown in the tool’s nameplate.

When operating the ROTO-1/2A7 hammer drill outdoors, use a grounded extension cable labeled for outdoor use to reduce the risk of electric shock. Read all safety warnings and instructions listed in the manual carefully before using the tool to avoid electric shock, fire, and/or severe damage. Save all warnings and instructions for future reference.

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

Code 15679
Description Hammer drill
Chuck 1/2”
Voltage 127 V
Frequency 60 Hz
Current 4.7 A
Power 0.87 Hp
Speed Drill: 0 – 3 100 RPM Hammer drill: 0 – 50 000 Strokes/minute
Drill Capacity Metal: 1/2” | Concrete: 1/2” | Wood: 1”
Duty Cycle 30 minutes work per 15 minutes idle. Maximum 3 hours per day.
Conductors 18 AWG x 2C with insulating temperature of 221 °F
Insulating Class II IP Grade IP20

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 an 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. Before gaining access to the terminals all power sources should be disconnected.

Power Requirements

WARNING: Tools with double insulation and reinforced insulation eliminate the need of three parts a grounded third power cord with three prongs or a grounded power connection. 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.

General power tool safety warnings

WARNING! Read carefully all safety warnings and instructions 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.

Service
Repair the tool in a TRUPER Authorized Service Center using only identical spare parts. This will ensure that the safety of the power tool is maintained.

Safety warnings for drills and hammer drills

Choose the right bit

Choose the right bit for the work piece. It reduces the risk of severe injury and makes the job easier.
To drill concrete or stone, use bits specifically designed for concrete.
To work on metal or plastic, use bits suitable for metal. Sizes encompass a minimum of 0.03” (0.047” for a 0.5” chuck) 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 using the hammer drill

Before starting to work with the hammer drill, take a few minutes to assess the job to be done and double-check all the safety caution rules.
Fit the bit into the chuck. Remove the chuck wrench before drilling. Failure to follow this instruction shoots out the chuck wrench with great speed and cause severe injury.
Before drilling walls, floors or ceiling, look for any built-in objects, like power cables and conductors or pipes.
Verify the switch is in the OFF position before connecting the hammer drill. Otherwise, it can unexpectedly start operating and could cause sever injuries.
Turn off and disconnect the tool before reversing the chuck’s direction as well as fitting or replacing bits.

While operating the hammer drill

Use the auxiliary handles, if supplied with the tool. Loss of control may result in personal injury.
Hold the tool by the isolated parts. The cutting part of bit could come into contact with hidden wiring or with its own power cord. Making contact with a power cord causes the tool metal parts get electrified and may result in electric shock to the user.
Do not force the tool to excessive workloads.
Turn off the hammer drill immediately if the bit gets stuck into de work piece. Then, remove the bit off the work piece. Do not try removing stuck bits turning on and off the tool.
Do not apply too much force on the tool in order to accelerate the drilling procedure. The bit could get damaged and the tool would loose efficiency and useful life.
A large diameter bit causes a higher reactive force leading to losing control over the tool. To avoid this possibility, firmly hold the tool with both hands and keep balanced footing. Drill at 90°
Be prepared to relax the drilling force when the bit goes through the material. Sudden movements could break the bit or damage the hammer drill.
Do not touch the bit or the orifices immediately after drilling. Wait until they cool down to handle them. Do not try to cool them down using water or oil.
Immediately after using do not set the tool where there are particles and / or dust. They can be absorbed into the tool mechanism and cause damage.
Use earplugs when using the hammer drill. Exposure to noise can cause hearing loss.
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.

TRUPER ROTO-1 2A7 Hammer Drill 1

Parts

TRUPER ROTO-1 2A7 Hammer Drill 2

Assembly

TRUPER ROTO-1 2A7 Hammer Drill 3

Start Up

Bit fitting
Put the bit into the chuck until it stops. Fasten with the chuck wrench and tighten alternately the chuck into each of the orifices.
WARNING : Clean burrs and any other foreign objects from the drill bit and drill bit, otherwise the drill bit may not be tight and cause serious personal injury

Turn on and operation control

Intermittent operation:
Connect the plug into the power inlet. Press the switch (A) to start the hammer drill. To stop, just release the switch.
Continuous Operation:
Connect the plug into the power inlet.
Press the switch (A) and block it pressing the continuous use button (B).
To stop, press and then, release the switch

Speed control

The tool can run in different speeds. Select by adjusting speed control (C) in the switch.
Turn speed control clockwise to increase the hammer drill speed and torsion.
Turn counterclockwise to lessen speed and torsion.

Changing from hammer drill to drill

To drill concrete, floor tile or materials of similar hardness, turn the impact-rotation selector (D) completely into the IMPACT ( ) position (pointing towards the chuck). The bit will simultaneously impact and rotate onto the material.
To drill metal, wood or plastic, move the impact-rotation selector completely into the ROTATION ( ) position (pointing towards the chuck). The bit will rotate onto the material. Do not try to drill metal; wood or plastic with the selector impact-rotation into IMPACT ( ) mode. Otherwise the tool efficiency will lessen and the bit tip would get damaged

Rotation direction

The rotation direction button is located on both sides of the hammer drill (E).
To make the drill turning forwards and drill, press the rotation direction button with the arrow pointing towards the chuck.
To make it reversible press the rotation direction button with the arrow pointing towards the hammer drill handle.
The reverse rotation enables the drill to loosen screws and nuts turning the hammer drill into a screwdriver. When using the hammer drill in the screwdriver mode do not exercise too much pressure onto the switch.
Changing the rotation direction can only be carried out when the switch is not pressed.

Adjusting auxiliary handle and depth control rod

Turn the auxiliary handle as indicated in the figure. When the auxiliary handle mount is loose, turn it into the desired position. Turn the auxiliary handle in a reverse direction to fix it in the new position.
To move the depth control rod, loosen the mount as explained in the previous paragraph. Once loose push the rod to the desired depth. Tighten the auxiliary handle to fix the rod into the new position.

Wood drilling

To make holes of 1/4″ or less it is recommended to use high speed bits. To make holes larger than 1/4″, it is recommended to use spade bits for wood.
Turn impact-rotation selector to drill mode ( pointing towards the chuck).
Secure the workpiece to prevent it from turning when drilling.
Begin drilling at a very low speed to prevent the bit from slipping off the starting point. Increase the speed as the drill bit bites into the material.
When drilling through the holes, place a black of wood behind the workpiece to prevent ragged or splintered edges on the back side of the hole.
Release the trigger when the hammer drill may need to be stopped suddenly.

Metal drilling

Use high speed steel bits for metal or steel drilling.
Move impact-rotation selector to drill mode ( pointing towards the chuck).
Use a center punch to mark the hole location on the workpiece.
Begin drilling at a very low speed to prevent the bit from slipping off the starting point.
Maintain speed and pressure which allows cutting without overheating the bit.
Applying too much pressure or faster speed will: overheat the drill, wear the bearings, bend or burn bits and produce off-center or irregular shaped holes
When drilling large holes in metal, it is recommended to drill with a small bit at first, then finish with a larger bit.
Lubricate the bit with oil to improve drilling action and increase bit life.

Masonry drilling

Use tungsten carbide-tipped masonry act bit when drilling holes in brick, tile, concrete,etc.
Move impact-rotation selector to hammer mode ( pointing towards the chuck).
Apply light pressure and medium speed for best results in brick.
Apply additional pressure and high speed for hard materials such as concrete.
When drilling in tile, practice on a scrap piece to determine the best speed and pressure.

Maintenance

Chuck change

Remove the auxiliary handle and open the chuck jaws.
Using a screwdriver remove the left-threaded safety screw with a clockwise movement.
Fit the long side of a Hex key (not included) in a vise and insert the short side of the Hex key (not included) to the chuck. Close the jaws.
Move the rotation selector button (E) into the reverse position (page 7 – Rotation direction) and fastening with a firm hand activate the hammer drill. The chuck will be released with the turn.
Set the new chuck turning it into the hammer drill thread until it stops.
Open fully the jaws and set the screw threading counter-clockwise. Tighten with a screwdriver.

Cleaning and care

To guarantee adequate motor cooling, always keep slots clean and free of obstructions.
Regularly inspect all the mounting screws. Double-check they are properly tighten. If any screw is loose tighten immediately.

Service

Service should only be made in a TRUPER Authorized Service Center. Service and maintenance performed by non-qualified people may be dangerous and lead to personal injuries. It also makes the product Warranty void.

Lubrication

We recommend lubricating the tool transmission every carbon brush change in a TRUPER Authorized Service Center.

Carbon brush replacement

Carbon brushes should be checked periodically.
When one or both carbon brushes show signs of wear go to a Authorized Service center to have both carbon brushes replaced. When replaced, see if the new carbon brushes move freely in the carbon brush housing. Ask to turn on the tool during five minutes to make the contact in the carbon brushes and the commuter even.
Use only original spare carbon brushes, designed specifically with the right strength and electric resistance for each type of motor. Carbon brushes with different specifications may damage the motor.
When replacing carbon brushes, always change both.

Authorized Service Centers

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.

Warranty.

Duration : 2 years. 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. www.truper.com