Mountz HF-, NF, NF150, NF220, NF450 Operation Instruction Manual

HF-Series

Operation Instructions

Corporate Headquarters: 1080 North 11th Street, San Jose, CA95112 Phone: [phone] Fax: [phone]

www.mountztorque.com

Page 1

Rev 1 (7/9/13)

HF-Series Operation Instructions

Introduction

- Various models that range from 17.4 - 87 lbf.in

- High performance Swiss Maxon brushless motor design provides durability and reduces the standard maintenance costs for
electric screwdrivers.

- Designed for high production environments. Minimal heat build-up even when tool is operated continuously.

- Adjustable RPM setting on the tool. Aselectable Soft Start mode from 0.2-0.6 seconds.

- Over Heat Protection (OHP) and Over Current Protection (OCP) protect driver from damage or malfunction. Features a LED
display that signals the tool status for the operator to view.

- Can be connected with the Scout Screw Counter.

- External torque adjustment scale.

- Requires HTC35 transformer (power supply).

- All models are ESD designed and prevent the occurrence of electrostatic discharge, which improves production yields,
manufacturing costs, product quality, product reliability, reputation and profitability.

Corporate Headquarters: 1080 North 11th Street, San Jose, CA95112 Phone: [phone] Fax: [phone]

www.mountztorque.com

Page 2

HF-Series Operation Instructions

Corporate Headquarters: 1080 North 11th Street, San Jose, CA95112 Phone: [phone] Fax: [phone]

www.mountztorque.com

Page 3

Alarm Display by LED

General Operation for HF-Series models

1. Attach power tool cable to the HF screwdriver and the transformer. Make sure notch in plug lines up
with the notch on the socket. Tighten knurled ground ring.

2. Plug in power cord to the back of the transformer and power outlet. Flip power switch to “ON”
position located on the back of transformer.

3. Select a bit. Retract the bit collar. Insert the bit and release the retracted collar. To avoid damaging
fasteners, make sure the proper bit is suitable for the head of the fastener.

4. The torque limit is determined by the tension of the coil spring housed in the torque adjustment nut.
The tighter the coil spring is wound the higher the torque limit is raised. See Charts on page 15 to
determine the appropriate torque adjustment setting.

5. Rotate the torque adjustment nut to set the torque limit. Turn clockwise to increase torque and counter clockwise to
decrease torque. The scale adjacent to the Torque Adjustment Nut is a reference guide. The torque output from the
driver can change depending on various fastening factors like friction, type of joint, and the type material being used
like a washer.

6. Turn driver on and check for proper rotation. FOR-clockwise, REV-counterclockwise.

7. To apply torque, squeeze the lever (Push-to-Start models - place light downward pressure on the nose of the driver).
The driver will automatically stop when the preset torque has been reached.

8. To remove the screw, turn the FOR/REV switch to REV

torque

adjustment nut

Model: HTC35 Transformer
Item # 145824

Specifications:

Max. Output: 4A
Output VDC: 35V
Input VAC: 110/230V
Size inches (W x D x H): 5 1/8” x 7 1/3” x 2 1/2”
Weight: 2.6 lbs.

Power Suppy for HF-Series

HF-Series Operation Instructions

Corporate Headquarters: 1080 North 11th Street, San Jose, CA95112 Phone: [phone] Fax: [phone]

www.mountztorque.com

Page 4

HF-Series Adjustable Speed & Soft Start Settings

These models feature an adjustable RPM setting on the tool. The RPM
settings can be adjusted to the preset increments as shown label (see
image on the right).

These models also feature a selectable Soft Start mode (from 0.2, 0.4 &

0.6 seconds).

How to Adjust Speed Setting

1. Press and hold the Speed button for 2 seconds.

2. Two LEDs will display colors that show the current speed
selection of the brushless screwdriver.

3. Position the F/R slide switch in R or F to increase (+) or decrease
(-) RPM setting of the tool. Slide switch to "R" position to increase
speed. Slide switch to "F" to decrease speed. Then press the
Speed button until the target speed is selected. The two LEDs
will display colors that show the current speed selection (see
table below for reference) Note! The RPM settings can only be
adjusted to the preset increments as shown on the label
(see chart below).

4. By starting the screwdriver, the selected speed is saved

automatically.

Program Lock Key -

Item # 145774

The Program Lock Key protects from incidental or operator tampering of the
programmable settings on the side of select HF-Series models. To adjust the
settings the Program Lock Key must be is plugged into the HTC35 Transformer.

Speed Selection Chart

To adjust the settings the Program Lock Key
must be is plugged into the HTC35 Transformer.

Program Lock Key

HF-Series Operation Instructions

Corporate Headquarters: 1080 North 11th Street, San Jose, CA95112 Phone: [phone] Fax: [phone]

www.mountztorque.com

Page 5

How to Adjust Soft Start Setting

There are 3 different time settings for the Soft Start mode which are (0.2, 0.4 & 0.6
seconds). The default setting is OFF. For those fastening applications that require a
slow start and then ramp up the speed of the electric screwdriver. The soft start
function can prevent damage to screw heads.

1. Press and hold the Soft Start button for 2 seconds.

2. Two LEDs will display colors that show the current soft start
selection of the brushless screwdriver.

3. Press Soft Start button until the target time is selected.

4. By starting the screwdriver, the selected soft start setting is saved

automatically.

The Soft Start button is “wrap around” button meaning you can toggle through the settings continuously by pressing the button
(OFF - 0.2s-0.4s-0.6s).

Dimensions

HF-Series Operation Instructions

Corporate Headquarters: 1080 North 11th Street, San Jose, CA95112 Phone: [phone] Fax: [phone]

www.mountztorque.com

Page 6

Connections

HF-Series Operation Instructions

Corporate Headquarters: 1080 North 11th Street, San Jose, CA95112 Phone: [phone] Fax: [phone]

www.mountztorque.com

Page 7

Torque Cover protects the HF-Series from incidental or
operator tampering of torque setting. Allows for color­coding of specific torque values in production areas.

Black Torque Cover (Item # 145903)

The EZ-Glider torque arms are designed to improve production and quality control during the assembly
process. The arms securely keep electric or pneumatic drivers in perpendicular alignment to help prevent
side loading or cross threading occurring during the assembly process. The EZ-Glider helps remove the
operator’s influence in the assembly process and strengthens quality control.

The ergonomic design of the EZ-Glider torque arms reduces RMI (repetitive motion injury) and CTS
(carpal tunnel syndrome). The effortless handling of the torque arm provides comfortable tool operation
and increased production. The torque arm can be installed in space-restricted areas

Accessories

Scout screw counter helps manufacturers detect and eliminate costly screw-fastening
errors during the assembly process. Using a screw counter is like putting the eyes and
ears of a quality control manager where they are needed most - right on the assembly
area. The scout is designed to detect cross threading, omissions, unfinished rundowns
and cycle complete. The screw counter takes the control of the assembly process out
of the operator's hands.

Item # 145790

Screw presenters are small, tabletop devices used to organize and automate work
areas and production cells. Screw presenters make assemblers and the assembly
process more efficient by mechanically presenting a screw to a fixed pick up point.
The inexpensive screw presenter is an alternative tool instead of the cumbersome
and very expensive screwfeeder systems.

Right Angle Adapter. Easily
mounts onto nose of driver.

HF-Series Operation Instructions

Corporate Headquarters: 1080 North 11th Street, San Jose, CA95112 Phone: [phone] Fax: [phone]

www.mountztorque.com

Page 8

Torque Charts

These charts are meant to be used as guidelines for setting the torque on the HF-Series electric screwdrivers. The
drivers have a torque scale on the torque adjustment nut showing reference numbers. These numbers determine the
approximate torque setting. Refer to the charts to determine the reference number setting for your torque requirement.

How to Read the Torque Charts
Torque ranges (lbf.in) approximate tightening torque, operated with no load at maximum speed

HF50

lbf.in

G (Gold)

Torque Range

17.4 - 43.4 lbf.in

1 2 3 4 5 6

Torque Scale

5

10

15

20

25

30

35

40

7 8

45

50

55

lbf.in

N (Natural)

Torque Range

34.7 - 87 lbf.in

HF100

1 2 3 4 5 6

Torque Scale

20

30

40

50

60

70

80

7 8

90

10

HF-Series Operation Instructions

Corporate Headquarters: 1080 North 11th Street, San Jose, CA95112 Phone: [phone] Fax: [phone]

www.mountztorque.com

Testing Power Tools:

1. Application Method: Use a torque analyzer in “Peak Mode” with a rotary transducer between the power tool and the actual

application. This is the best way to test since you are using the actual joint as the test station. You will see the actual

torque applied to the fastener. Caution: Variances in tool performance may occur do to the addition of the rotary transducer.

2. Simulated Method: Always use a quality joint rate simulator (run down adapter) with a torque analyzer when testing power
tools in a simulated application. Use Joint rate and Breakaway methods to obtain most accurate torque readings in a
simulated rundown.

Care

1. The NF-Series screwdrivers are a precision torque control instrument and should be handled with care at all times.

2. Only use the transformers listed in the Mountz catalog or website for appropriate NF-Series driver model (If you have any questions
regarding the appropriate transformer set-up, contact Mountz Customer Service Department).

3. Operate under safe conditions. Do not place in operation where such objects as hair, strings, clothing, etc. can become
tangled in the rotating bit.

4. Keep away from moisture. Never use in high humid, moist or damp
environment.

Service

Mountz Inc. features an experienced calibration and repair staff. Our trained
technicians can calibrate and repair most any tool. Mountz provides rapid serv­ice with quality that you can trust as we offer three state-of-the-art calibration lab
and repair facilities that can calibrate up to 20,000 lbf.ft.

With over 45 years of experience, Mountz’s in-depth knowledge of torque is
reflected in our tool’s craftsmanship and our ability to provide solutions to both
common and uncommon torque applications. We perform calibrations in accor­dance with ANSI/NCSL-Z540. Mountz is dedicated solely to the manufacturing,
marketing and servicing of high quality torque tools.

Tool Service & Repair Capability

Torque Wrenches: Click, Dial, Beam, Cam-Over & Break-Over
Torque Screwdrivers: Dial, Micrometer, Preset & Adjustable
Torque Analyzers/Sensors: All brands
Electric Screwdrivers: All brands
Air Tools: All brands

Impact Wrenches, Drills, Pulse Tools, Grinders, Percussive Tools,
Air Screwdrivers, Nutrunners, DC Controlled Nutrunners

Torque Multipliers: All brands

Page 9

Mountz Service Locations

Eastern Service Center

19051 Underwood Rd.

Foley, AL 36535

Phone: [phone]

Fax: [phone]

Western Service Center

1080 N.11th Street

San Jose, CA 95112

Phone: [phone]

Fax: [phone]

www.mountztorque.com

[e-mail]

Twitter: @mountztorque

Download a “Service Form” and include a copy

when you send the tools in to be serviced.

Looking for fasteners?

www.mrmetric.com