Full-auto shut off, direct plug-in electric screwdrivers Instruction Manual Applicable Models: AT-3681, AT-3682, AT-5681, AT-5682, AT-6681, AT-6682 ■ Thank you for purchasing the CHP electric screwdriver. In order to ensure maximum performance and product life, please read this manual before operating your screwdriver.
-Table of contentsGeneral Safety Warnings ............................................................................................................. 03 Care/Maintenance……………………………………………………………………………………….03 Before use …….............................................................................................................................03 Product information ................................................................................................................... 04 Operation ..............
1. General Safety Warnings WARNING: Read all safety warnings and all instructions. Failure to follow the warnings and instructions may result in electric shock, fire and/or serious injury. Keep this manual readily accessible for reference. ■Working area safety - Keep working area clean and well lit. - Do not operate power tools in the presence of flammable liquids, gases or dust. - Keep the power tool away from children. ■Electrical safety To avoid risk of electric shock: - Never modify the plug in any way.
. Product Information ■Outline TORQUE REGULATING HANDLE ■ Packing List - Electric screwdriver - Power cord - Bits (2) - Replacement carbon brush (2) - Torque cover - Instruction manual ■Specifications Model AT-3681 AT-3682 AT-5681 AT-5682 AT-6681 AT-6682 Power source VAC Torque range kgf-cm/lbf-in No load speed rpm 115 60HZ 230 50HZ 115 60HZ 230 50HZ 115 60HZ 230 50HZ Torque setting Machine screw mm / in Available Screw Machine screw mm / in Weight g / lb 2.2~12.0/1.9~10.4 4.0~18.0/3.
. Operation - Connect the power cord to the driver as shown below, twist the knob on the power cord to secure it onto the driver. Do not force the connection as this can cause damage to the driver and power cord. - To avoid accident and injury, check driver’s torque setting, and make sure that the work piece is fixed firmly before operating. - Change torque settings: Use the regulating handle to set the torque. Turning it clockwise into the casing will increase the torque.
Fastening and removing screw: To drive a screw, set the forward/reverse switch to the FWD position. To remove a screw, set the switch to the REV position. Press down the screwdriver vertically. Note: Do not change the running direction during operation. Always switch the direction after the screwdriver has completely stopped. - Secure screwdriver during operation: During operation, hang the screwdriver securely (from balancer) in order to prevent damage to driver and power cord.
6. Troubleshooting If the screwdriver does not work properly, check the list below. If you cannot solve the problem do not open the unit. Contact our customer service as soon as possible. If the screwdriver does not run - Check the outputting power. - Check whether the plug is inserted properly and the outlet has power. - Check for open or short circuit in AC wire. If an open or short circuit is found, replace the AC wire. - Check if the carbon brush is damaged or worn out.
American Hakko Products, Inc. 28920 Avenue Williams Valencia, CA 91355 1-(800)88-HAKKO(42556) www.HakkoUSA.com Rev 2017.
