Brushless® Screwdriver

BLG Series
BLG-4000
BLG-5000

BLG-5000-15
BLG-5000-18
BLG-5000-HT

BLG-BC1*(BC1: With Built-in screwdriver)

BLG-ZERO1*(ZERO1: With Built-in screwdriver & Pulse system)

BLG-OPC(OPC: For Screw Counter)* Operation Manual for BLG-BC1, BLG-ZERO1 series is attachedwith a product.

Operation Manual(As of June 2023)

1-35-1 Oshiage, Sumida-ku Tokyo, Japan 131-0045
TEL: +81-3-6661-8821
FAX: +81-3-6661-8828

No. ET-A011

23A

■ Names of Parts
BLG-4000 (lever start type)
Driver cord (5P)

Driver cord plug
The shapes of both plugs
are the same (5P)
ZERO1, BC1, OPC
cord plug (6P)

HangerDriver connector

FOR/REV switch
FOR: Forward
OFF: Neutral
REV: Reverse

Joint ring

BLG - 4000REVFORTorque adjustment
scale
Switch lever(Driver rotates
on pressing theswitch lever)

Torque adjustment
nut
Joint shaft collar

Bit(HIOS shank)Protective cover for thetorque adjustment nut canbe removed by turning it
anti-clock wise

-1-

Protective coverfor the torqueadjustment nut(be removed byturning it CCW)

BLG-5000 ( Lever or Push Start)
Selectable by the Switch.

Driver cord plugThe shapes of both plugs
are the same (5P)

Marking between“Lever” and “Push”
start selection SW.    L ←→ P
See page 4, how todo it.
Hanger

ZERO1, BC1, OPC
cord plug (6P)
Driverconnector←→

FOR/REV switch
FOR: Forward
OFF: Neutral
REV: Reverse

BLG-5000

REV

FOR

Switch lever(Driver rotates on pressing the switch lever)

Torque adjustment scale

Joint shaft collar

Bit(HIOS shank)

Accessories● Bits● Torque adjustment spring
There are 2 torque adjusting springs for BLG-4000.
In the BLG-4000, stronger spring (Red) is installed.
If you want to use weaker spring then replace withaccessory (White) spring.
Select the sprig depends on your fastening torque.
● Hex nut L wrenches (for BLG-5000, ZERO1, BC1, OPC)
-2-■ Specifications BLG-series
Model

BLG-4000
BLG-5000
BLG-4000ZERO1 BLG-5000ZERO1
BLG-4000BC1
BLG-5000BC1
BLG-4000-OPC BLG-5000-OPC

Output Torque N•mRange
Ibf•in0.1 - 0.55

0.2 - 1.2

0.9 - 4.8

1.7 - 10

Unloaded Rotation HI
Speed (r.p.m) ±10% LOW

1,000

1,000

690690Screw Size Machine Screw(mm)Tapping Screw

1.4 - 2.6

2.0 - 3.0

1.4 - 2.3

2.0 - 3.0370

425

Weight (g)HIOS Shank (Standard)

Bit
Drive Hexagonal ShankPowerSupply

H4H41/4HEX

H5 and 5HEXor 1/4HEX

T-45BL○○T-70BL○○ModelBLG-5000-15
BLG-5000-18
BLG-5000-HT
BLG-5000ZERO1-15 BLG-5000ZERO1-18 BLG-5000ZERO1-HT
BLG-5000BC1-15 BLG-5000BC1-18 BLG-5000BC1-HT
BLG-5000-OPC-15 BLG-5000-OPC-18 BLG-5000-OPC-HT

Output Torque N•mRange
Ibf•in0.3 - 1.0

0.5 - 1.5

0.5 - 2.0

2.6 - 10

4.3 - 13

4.3 - 17

Unloaded Rotation HI
Speed (r.p.m) ±10% LOW1,500

1,800730

1,000

1,200–

2.3 - 3.0

2.3 - 3.0

2.0 - 4.0

2.0 - 2.6

2.0 - 2.6

2.0 - 3.0425425425

H4

H5 and 5HEX

H5 and 5HEX

1/4HEX

1/4HEX–○*Screw Size Machine Screw(mm)
Tapping Screw
Weight (g)HIOS Shank (Standard)

Bit
Drive Hexagonal ShankPowerSupply

T-45BL
T-70BL

H5 and 5HEX
or 1/4HEX○*○*○*○*(Note) Use only 2(HI) power outlet with the * models.
These models may not perform properly on 1(LOW) power outlet.
● Circler (○) indicate that the power supply can be used with the perspective

tool.

-3-

■ External Dimensions
BLG-4000

Grip ∅32.7

Length 206mm• Driver cord length
BLG-4000,
BLG-5000:1.5m(5P)

BLG-5000
Grip ∅38

BLG-4000BC1,ZERO1,OPC
BLG-5000BC1,ZERO1,OPC:2m(6P)

BLG-5000

Unit:mm

Length 235mm■ Power Supplies
The Brushless Driver must be operated together with aPower Supply.
Powering the Brushless Driver with the HIOS T-45BL andthe T-70BL Power Supply will insure operation of the driverat its full capacity.

■ BLG driver and Power Supply combinations
Power Supply Model
BLG-4000
BLG-4000ZERO1
BLG-4000BC1
BLG-4000-OPC
BLG-5000 Series
BLG-5000ZERO1 Series
BLG-5000BC1 Series
BLG-5000-OPC Series

Max.number of drivers
T-45BL
T-70BL
1111111
11*1
1*1
1*
1
1*
1* Not applicable to BLG-5000ZERO1-18, BLG-5000BC1-18,
BLG-5000-OPC-18 and BLG-5000-18.

-4-■ Operations
Pre-operating preparation
1. Connect the power cord plug to AC outlet.
2. Turn the power switch to “I”, and check if the LED lightis lit.
If the LED light is not lit, inquiry to the distributor. Afterconfirming that the LED light is lit, set the power switch
to “0”, OFF.
3. Connect the driver cord to the power source.
4. How to change to “Push” start.    Unscrew the “Switch lever shaft screw” and then take off
the “Switch Lever”. Using sharp parts, such as tweezers,
move the selection SW to “P” (push) near “L ←→P” mark.

L←→P

Switch lever
shaft screw"L←→P" selectswitch is at theside of this section.

POWER OF HIOSMADE IN JAPAN

Switch Lever

Note: Do not press or hit the SW, otherwise you may damage theSW or body case.
Do not use the screwdriver with the switch lever shaft screw
removed. It may cause a malfunction.

l Operating procedure

1. Attach a bit to the driver.
2. Turn on the power switch and set the power output
setting to “1” or “2”.
Output display setting of each power supply• 2: (30V), 1: (20V)
3. Set the FOR/REV switch of the driver to “FOR” (forwardrotation).
4. Set the tightening torque of the driver by torque adjustment nut.
5. Start the driver.
• After placing the bit end on the screw head, press theswitch lever. The driver will start and the screw will betightened on the component.
6. When the screw is tightened with the torque value set
to the driver, the clutch works and the rotation stops
immediately.
7. To loosen the tightened screw, set the FOR/REV
switch to “REV” (reverse rotation). The screw will beloosened after a few impacts.
-5-

Attaching a bit
While attaching or detaching a bit, turn off thepower switch or pull out
the driver cord from thedriver to disconnect thepower.

Insert joint
shaft collar in thedriver for
BLG-4000

Insert bitl BLG-4000
For BLG-4000, pull-down the“Joint-shaft collar” towards thebody case of it and insert the bit.
l BLG-5000
For BLG-5000, pull-up the “Joint-shaft collar” and insert
the bit.
l Check that the bit is fixed firmly.
l Use genuine parts for HIOS Shank H4 (∅4) or H5 (∅5).

How to adjust the torque
BLG-4000 has two torque adjustment springs: for hightorque measurement, use the spring installed in the driver(red spring), and for lower torque measurement, use thespring attached to the driver (white spring). Use either ofthe springs according to work type.
For torque setting, the “Output torque guide” can be used
as a guideline to get the rough torque value.
l The torque can be adjusted by adjusting the spring pressure in the torque adjustment nut. The torque adjustment
nut can be tightened or loosened by squeezing or relaxing it, respectively.

How to adjust the torquel BLG-4000
If you already know the screw tightening torque value, by referring tothe guide, set the nut so that thescale line comes just above the desired torque value scale (1 to 8).

８６Torque adjustment nut
can be turned and moved
manually with this ring

-6-l BLG-5000
Using the “Allen wrench”, set
the torque referring the torqueadjust scale “1 to 8”.
Try to fasten and find the rightposition of the scale.
l Test the screw tightening withthe set position and until you
find the appropriate torquevalue.

Torqueadjustment
scale

Hex nut L wrenches

Rotation speed
The standard power output of the driver is set to 30V.
Power output setting display
2: 30V, 1: 20VTo decrease the rotation speed according to work type, set
20V as the power output.

Using the screw counter
You can use BLG-4000-OPC or BLG-5000-OPC by connecting it to the power supply BLOP-STC3 with screw counter orto the separate counter BLOP-SC1. For details of handling,please refer to the operation manual of the screw counterto be used.
l Power supply with screw counter BLOP-STC3(Single power point)

BLG-4000-OPC
BLG-5000-OPC(The shape of thedriver cord (6P) is thesame at both ends)-7-

l Separate counter BLOP-SC1 (Single power point)
Brushless driver
External power supply T-45BL/T-70BL
Separate counter
BLOP-SC1

BLG-4000-OPCBLG-5000-OPC(The shape of thedriver cord (6P) is thesame at both ends)

Notice:When this unit is used in combination with the existing HIOS
external counter, the driver counter does not synchronizedwith the external counter. So, use them based on the externalcounter function.

-8-

l Before requesting our repair service, troubleshoot according to the following table:
ProblemCause and solution

Bit falls off or cannot
be installed• Are you using the bit suitable to yourmodel?
Please check in the usage table.
• Have you installed the bit properly?
Check the description in the operation manual for installing the bit.
• If any of the above is not the case,or the problem cannot be solved,
stop operation immediately and contact your distributor for repair.

Weak force, cannot• Are you using HIOS genuine parts
tighten the screw sufand specified springs?
ficiently• Check the torque value again in the“Output torque guide” for the driver.
• If any of the above are not the case,or the problem cannot be solved,
stop operation immediately and contact your distributor for repair.
Driver does not rotate. • Check the power supply.
Refer to the “Pre-operating preparation” on this paper.
• If the above is not the case, or theproblem cannot be solved, stop
operation immediately and contact
your distributor for repair.

l Use the HIOS torque meter to check the screw tighteningtorque.
• Use HP series for electric driver torque setting.
• Use HDP series for measuring screw loosening torqueand retightening torque.

-9-■ Output torque guide (HI input)
BLG-4000
BLG-4000ZERO1
BLG-4000BC1
BLG-4000-OPC

N・m

BLG-5000
BLG-5000ZERO1
BLG-5000BC1
BLG-5000-OPC

N・m

0.7

2

Red0.6(Installed)
1.50.5
0.4

White0.3(Accessory)

0.2

10.5

0.1

0.2
1 2 3 4 5 6 7 8Torque scale

BLG-5000-15
BLG-5000ZERO1-15
BLG-5000BC1-15
BLG-5000-OPC-15

1 2 3 4 5 6 7 8Torque scale

BLG-5000-18
BLG-5000ZERO1-18
BLG-5000BC1-18
BLG-5000-OPC-18

BLG-5000-HT
BLG-5000ZERO1-HT
BLG-5000BC1-HT
BLG-5000-OPC-HT

N・m

N・m

N・m

2

2

2

1.5

1.5

1.5

11

10.5

0.5

0.5

0.3
1 2 3 4 5 6 7 8

1 2 3 4 5 6 7 8

1 2 3 4 5 6 7 8Torque scale

Torque scale

Torque scale- 10 -