
Power Supply
Instruction Manual
Applicable Models: APS-301A, APS-351B,
APM-301A, APM-301C
■ Thank you for purchasing the CHP Assembly Tool. In order to ensure maximum performance and
product life, please read this manual before operating your power supply.

-Table of Contents-
General Safety Warnings ................................................................................................................
Care/Maintenance .............................................................................................................................
Read Before Use ...........................................................................................................................
Declaration of Conformity (CE) .......................................................................................……….
Product Information ..............................................................................................................................
Operation ………………..………………………………………………………………............................
Troubleshooting ……………..…………………………………………………...………………………
03
03
03
04
04
05
08
2

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.
- Do not expose the power tool to wet conditions.
- Do not pull or damage the power cord.
- Use suitable extension cord when operating outdoor.
- Use a residual current device (RCD) when operating in a damp location.
■Personal safety
To avoid injury during operation:
- Do not use the power tool when under influence of drugs, alcohol or medication.
- Ensure that the switch is in OFF/Neutral position before connecting the power source.
- Remove and adjusting key or wrench before turning on the power tool.
- Keep proper footing and balance at all time.
- Do not wear loose clothing or jewelry. Keep hair, clothing and gloves away from moving parts.
2. Care/Maintenance
- Use the appropriate power tool for the application. Do not force the power tool.
- Do not use the power tool if the switch is malfunctioning.
- Disconnect the power source before making adjustments, changing accessories or storing the tool.
- Keep the tool away from children or untrained personnel.
- Periodically check for any misalignment or binding of moving parts, breakage of parts and any other
condition that may affect the operation.
- Keep the screw bits clean before and after use.
- Only use compatible power supplies and accessories.
3. Read Before Use
■Set-up Notice
- Use the controller in dry place indoors without the presence of dust or metal grindings.
- Position the controller on a stable surface.
- Keep the controller away from high voltage sources or noise generating sources.
- Do not place objects on the top of the controller, keep surroundings clear to allow heat dissipation.
■Caution during operation:
- Only use the power supply on an AC circuit with an overload relay.
- Ensure the ground pin is connected to a socket equipped with a ground circuit to avoid electric shock.
- Ensure that the power cord is tightly plugged into the socket.
- When plugging in or unplugging the power cord, hold the plug firmly. Never pull on the cord.
- Do not switch between forward and reverse when the electric screwdriver is in operation.
- We recommend only use up to 80% of the rated maximum torque to avoid inaccurate clutch
escape (The maximum torque may vary with the flexibility of the fastened object).
If over 80% of the rated maximum torque is needed, using a screwdriver with higher torque is recommended.
3