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After use 

Storage and maintenance: when the unit is to be stored for a long period, remove the power supply and bit, open the carbon 
brush cover and blow out any accumulated carbon brush dust with compressed air, and wipe the exterior clean. Then store the 
screwdriver carefully in a dry, dust-free place away from direct sunlight. Store the bit in grease. To ensure continued 
serviceability, periodically check and maintain the screwdriver. 

Serial No.: 

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ASA Industrial Electric Screwdriver User’s Manual 

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Troubleshooting 

If the screwdriver does not work properly, check the list below. If you cannot solve the problem do not open the unit. Contact 
one of our authorized agents as soon as possible. 

(for full-automatic models

low volt. DC motor with soft start controller) 

 

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If the screwdriver does not run 

Check that the power supply is outputting power. 

Check that the power supply plug is inserted properly and that output plug terminals No.1 (-) and NO.4 (+) 
show 30VDC (approximate) between them. If no output is shown, change the power supply. 

Check for a open or short circuit in the 6p-6p cord connecting the screwdriver to the power supply. If an open   
or short circuit is found change the cord or plug. (use plug type 2G2022(6p) or purchase equivalent type) 

Check that the fuse is intact. Caution: when changing the fuse, unplug the power supply. 

Check that the carbon brush is undamaged, that the carbon brush guide cord with the rotor to become too small. 

  Anyone of these factors could cause the screwdriver to stop rotating or rotate abnormally. 

Inspection method: open the carbon brush cover and use a non-conductive insulated rod to gently press the brush. If the 
screwdriver resumes rotating, the carbon brush has reached the end of its useful life and must be replaced immediately. 

Check that the rotation direction switch are working properly. If no ‘click’ is heard when a trigger is depressed, 
it is not working and must be replaced. (make sure to perform this check in a quiet place) 

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If the screwdriver is not rotating normally 

There is a protective circuit within the power supply. Power is only supplied normally from 3 to 5 seconds after 

  current flow begins. 

If the motor only runs intermittently during ‘Forward’ operation, try ‘Reverse’ operation, or rotate the anvil   
90 degrees until a ‘click’ is heard, then re-attempt ‘Forward’ operation. 

Long-term use causes the motor’s commutator to wear down. In this case, it must be replaced. 
(this repair must be performed by one of our authorized agents) 

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If the bit falls out easily or wobbles 

check that the bit matches our specifications. If not, change the bit to one that does. 

If the bit tends to wobble, remove the bit, rotate it 60 or 180 degrees and re-insert it.

 

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If the screwdriver does not stop when the selected torque is reached 

An excessive torque setting can cause the screw to strip the threads, with the result that the clutch does not 
activate. Lower the torque to a level that does not cause stripping. 

Differences in size between the bit tip and screw slot lengths can cause slopping. Change to a suitable bit tip. 

The brake circuit may be damaged or the sensor switch may have shifted. 
(this repair must be performed by one of our authorized agents) 

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Warranty 

We provide a one-year free repair service warranty with this product. The warranty is good for one year from the date of 
purchase entered on the Product Information Form. The retailer’s stamp must appear on the form to confirm the date. However, 
the following circumstances we will charge the user for any parts and labor cost associated with repairs. 

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For repairs involving normal wear to parts including carbon brushes, bits and power cord, and also to the exterior surface. 

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If the screwdriver was connected to a power source of the incorrect voltage. 

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If there was inappropriate use or an attempt to repair the unit by the user. 

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After the period of the guarantee, or if the user cannot present the manual with stamped Product Information Form. 
 

Retailer’s 

Stamp 

 

 

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Specifications and design may be changed without notice for improvement(A-4) 

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A Word of Thanks to Our Customers 

Thank you for choosing lightweight and powerful electric screwdrivers. In order to insure maximum performance and product 
life, please read through this manual before using your screwdriver. 

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Feature 

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Our screwdrivers are designed for use with precision torque locking screws. It can be used for assembly of middle and 
large range items such as home appliances, computers furniture and car industry etc. 

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Low vibration, low noise, meets environmental protection demands. 

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Low-voltage electronic braking circuit for precision torque control, low breakdown rate and long product life. 

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Low-voltage DC motor for safety and prevention of electric shocks. 

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Design features separation of screwdriver and control for low repair costs and higher serviceability rate. 

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Switching power supply plugs directly into screwdriver and builds a soft start circuit, provide more accurate torque, 
longer motor life and safe operation. 

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Right-angel (90°) head adapter attaches easily to screwdriver for use in small spaces (>60mm), operates smoothly. 
(Optional for 1/4" hex shank only) 

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Ergonomically designed exterior reduces work fatigue and increases productivity. 

 

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Specifications 

Model 

ASA-6000 ASA-6000PS

ASA-6500  ASA-6500PS

ASA-6800 ASA-6800PS 

Power source 

30VDC 

Torque range 

Kgf-cm/lbf-in 

2.0-12.0 / 1.7-10.4 

4.0-20.0 / 3.5-17.4 

5.0-25.0 / 4.3-21.7 

Accuracy ±3% 

No load speed / rpm 

1150 

1000 

1000 

700

 

Torque setting 

Stepless 

Machine screw

mm / in 

2.0-3.0 / 0.08-0.12 

2.6-4.0 / 0.10-0.16 

3.0-5.0 / 0.12-0.20 

Available 

Machine screw

mm / in 

2.0-2.6 / 0.08-0.10 

2.3-3.5 / 0.09-0.14 

2.6-4.0 / 0.10-0.16 

Weight g/lb 

490 / 1.1 

Length mm/in 

228 / 9.0 

237 / 9.3 

228 / 9.0 

237 / 9.3 

228 / 9.0 

237 / 9.3 

Available bit shank 

5

ψ

/5mm Hex shank

1/4’’ Hex shank 

Power consumption 

30 

40 

40 

Available power supply 

APS-30UA

APS-30UE

APT-65 

Clutch impact 

Just one time when torque up 

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Outline

    (this drawing applies only to 1/4” hex. bit shank screwdrivers) 

ASA-6500 1000RPM
INPUT :30VDC 1.0A

Torque:4.0-18.0 Kgf-cm

ψ34

(Egg-shaed)

BONNET

FWD-OFF-REV SW

HANGER

RING

TRIGGER

(POWER SWITCH)

LABEL

TORQUE REGULATING HANDLE

BIT SLIDE SLEEVE

Lever

start

type

 

 
 
 
 
 

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