Screwdriver with Hammer Head Model (with Shock-less Stand)

VZH-1820 / VZH-1820PS
VZH-3012 / VZH-3012PS
Operation Manual
2021.03 ET-A073 21A

Thank you for purchasing HIOS VZH series screwdriver. Please read this operation manual thoroughly before use to ensure
proper operation. Store this manual in a safe place for future reference.
Please confirm following accessories attached with this product before using.

Attached Accessories

Carbon brushes
1 pair (VZ18-0480)

x 3pcsHexagon socket set Screws(M4 x 6mm)

L-wrench2mm Hex x 1
Operation Manual x 1
Precautions notice x 1

converter plug x 1

Hammer Head Screwdriver(with Shock-less Stand)*Attached with
100V type only

<Precautions>
1. Do not connect this tool to the power outlet when attach or remove the bit.
During the tool is not in use, please slide FOR/REV switch to OFF(Neutral position) to avoid unintentional starting.
2. Hold the shock-less stand with bolt firmly on the work benches.
3. Please prepare the bit which type is according as following standard.
NOTE: Do not attach improper type of bit avoid screwdriver to be broken down.

Improper Bit typeProper Bit type

56.3

9.0

・6.35mm hexagon shape(Double end Bit)

・The length from the end of bit

More than 9.0

to center of the ditch is 9mm(Bit with double ditches)
4. Avoid any location that is wet, moist or oily.
Never use the screwdriver in the place where there is a lot of dust, debris, oil or corrosive gas.
Otherwise an electric shock or damage might be caused in the place with high humidity in particular.
5. Please use the screwdriver carefully due to avoid drop off.
6. Before changing rotation way from Forward to Reverse, please make motor to be stopped by sliding FOR/REV
switch to OFF (Neutral position).
🅐
7. Please note the following about carbon brushes.
(1) The range of use is up to the position of the groove on the brush surface. (🅐)When it wears to the specified position, replace it with a new one.
(2) When replacing the carbon brush, replace the two places with new ones at thesame time. (🅑)・When replacing, set the brush surface in the direction that matches the internallyrotating commuter surface.
・Be careful not to overtighten the carbon brush cap.
(3) In order to prevent the insulation from being deteriorated due to the wear
powder of the carbon brush, be sure to send the screwdriver for maintenance andinspection 1 million times or after 1 year of use.

🅑(4) Please use genuine HIOS products.
Do not use carbon brushes of different dimensions or made by other companies. It may cause a malfunction.
Please note that we are not responsible for any accidents or malfunctions caused by using parts other thanthose specified.
Arm Holder<Usage Procedure>
1. The way of driver grip can be adjustable after take off 3pcs of hexagon
socket set screws from the arm holder.
After adjusting of the grip position or the way of slide arm, please fix it
again with hexagon socket set screws.
2. Please hold the stand base at 3points by bolts.
Make sure it to be hold firmly to withstand large shock.
3. Set up the height of the slide arm.
Put the prop through the shock-less holder and tighten the wing boltat the demanding height of the slide arm to hold.
*NOTE: Each set screws are sometimes loosen due to tightening shock.
Please check them periodically.

1Hexagon socket set screw4. Insert the bit to the screwdriver.
Push down the joint shaft collar at the end of the driver upwards
and insert the bit.
Check the bit not to come loose after that.
*NOTE:
Please make sure whether the bit size# is proper for the screws to
avoid damaging the screw recess.

Insert a bit
during pushingdown the joint
shaft coller.

5. Torque Adjustment
Adjust the torque adjusting nut(T/A nut) to the appropriate Level by following to “theApprox. Guidance of Output Torque” on this book.
The scale on the guidance is assuming same scale on the torque adjusting nut of thescrewdriver.
*NOTE:
Please make sure the exact output torque value by using Torque meter* due to the valueon the guidance isjust for your reference.
6. Connect AC plug to the power outlet.
FOR/REV Switch

7. Please confirm the rotation way as slide the FOR/REV switch to “FOR” or “REV” side.
As for the driver with PUSH to start will be worked when the screw is pressed by bit
inserted on the screwdriver.

8. Please tighten the screw for a trial before using indeed.
Please make sure the exact output torque value by using Torque meter* and adjust T/A nut
until achieve the target torque.
9. If in case of loosening the tightened screw, please slide the FOR/REV switch to “REV”.
The tightened screw can be loosened by the driver with several times impact.
*We recommend using HIOS Torque Meter for torque checking or setting output torque of a screwdriver.
◦Measuring slack torque of tightened screws or torque increase ··· HDP series◦Making torque setting on an electric screwdriver, checking output torque of tools ··· HP series

2Structure of VZH Series

Driver Cord

AC plug

FOR/REV Switch

Carbon Brush

Carbon Brush
PropGrip

Shock-less Holder

Wing Bolt

Arm cap

Arm Holder
Shock-less Stopper
Torque adjusting nut(T/A nut)

Slide Arm
TurretStand Base

Turret Set screw
Bit

Length of Slide Arm (mm)() is the active range of sliding

530 (475)

Height of Prop (mm)570Stand Base (mm)Height8

Internal dia. of hole

6Interval length of holes

52a triangle (L) on a side3

Joint shaft Collar

Specification of VZH driver
ModelPower Input / Power consumption (W)Output Torque N·m
Range(kgf·cm)
Unloaded Rotation Speed (r.p.m±10%)
Screw Size (mm)VZH-1820
VZH-1820PS

VZH-3012
VZH-3012PS

AC 100V±5%
Approx. 40W

AC 100V±5%
Approx. 40W

AC 120V±5%
Approx. 60W

AC 120V±5%
Approx. 60W

3.0 - 7.0

4.0 -10.0(30-70)(40-100)

470

270

5.0 – 6.0

5.0 - 6.0

Dimension(mm) Grip dia. / Total Length
Weight (kg)

Φ39 / 345mm
1.8 kg(Including "driver cord" and "slide arm")

Bit Type

1/4 HEXAC Cord Length (m)3m■ Approx. Guidance of Output TorqueＮ・m161412

VZH-3012/VZH-3012PS

108

VZH-1820/VZH-1820PS

64201 2 3 4 5 6 7 8 9 10scale4