Mountz FLEXPOWER FLEXC-3PX User manual

MODEL No: FLEXC-3PX
FLEXC-8PX
FLEXC-11PX
FLEXC-12PX
INSTRUCTION MANUAL 10.8V Cordless Shut-off Screwdriver
www.mountztorque.com

MODEL No: FLEXC-3PX
FLEXC-8PX
FLEXC-11PX
FLEXC-12PX
INSTRUCTION MANUAL 10.8V Cordless Shut-off Screwdriver
www.mountztorque.com
a) Torque adjustment cover
b) 1/4" F/Hex with quick change chuck
c) LED indicator provides simple process information to the operator
d) LED light for working in dark area
e) Press button for easy Forward/Reverse operation
f) Ergonomic handle design provides a well-balance
g) Easy attached sliding battery system
h) High capacity Li-ion battery pack delivers longer run-time

MODEL No: FLEXC-3PX
FLEXC-8PX
FLEXC-11PX
FLEXC-12PX
INSTRUCTION MANUAL 10.8V Cordless Shut-off Screwdriver
www.mountztorque.com
WARNING! ”READ ALL INSTRUCTIONS” Always observe the safety regulations applicable
in your country to reduce the risk of fire, electric shock and personal injury. Understand the
following safety instructions before attempting to operate this product. Always wear eye
protection when working with power tools. Keep these instructions in a safe place.
SAVE THESE INSTRUCTIONS
General Safety Rules
Work Area Safety Tool Use and Care
▪Keep your work area clean and well lit.
Cluttered benches and dark areas invite
accidents.
▪Do not operate power tools in explosive
atmospheres, such as in the presence of
flammable liquids, gases, or dust. Power
tools create sparks, which may ignite the dust
or fumes.
▪Keep bystanders, children, and visitors
away while operating a power tool.
Distractions can cause you to lose control.
▪Stay alert, watch what you are doing and
use common sense when operating a
power tool. Do not use tool while tired or
under the influence of drugs, alcohol, or
medication. A moment of inattention while
operating power tools may result in serious
personal injury.
Personal Safety
▪Dress properly. Do not wear loose clothing
or jewelry. Contain long hair. Keep your
hair, clothing, and gloves away from
moving parts.
Loose clothes, jewelry, or long hair can be
caught in moving parts.
▪Do not overreach. Keep proper footing and
balance at all times. Proper footing and
balance enables better control on the tool in
unexpected situations.
▪Use safety equipment. Always wear eye
protection. Dust mask, non-skid safety shoes,
helmet, or hearing protection must be used for
appropriate conditions.
▪Use clamps or other practical ways to
secure and support the work piece to a
stable platform. Holding the work piece by
hand or against your body is unstable and may
lead to loss of control.
▪Do not force tools. Use the correct tool for
your application. The correct tool will do the
job better and safer at the rate for which it is
designed.
▪Do not use tool if switch does not turn it on
or off. Any tool that cannot be controlled with
the switch is dangerous and must be repaired.
▪Store idle tools out of reach of children and
other untrained persons. Tools are
dangerous in the hands of untrained users.
▪Check for misalignment or binding of
moving parts, breakage of parts, and any
other condition that may affect the tool
operation. If damaged, have the tool
serviced before using. Many accidents are
caused by lack of maintenance or service the
tools.
▪Use only accessories that are
recommended by the manufacture for your
model. Accessories that may be suitable for
one tool, may become hazardous when used
on another tool.

MODEL No: FLEXC-3PX
FLEXC-8PX
FLEXC-11PX
FLEXC-12PX
INSTRUCTION MANUAL 10.8V Cordless Shut-off Screwdriver
www.mountztorque.com
Additional Safety Rules for Shut Off
Screwdriver
▪Caution: To reduce risk of injury, charge only
the authorized batteries. Other types of battery
may burst, causing personal injury and
damage.
Battery Charger
▪Before using battery charger, read all
instructions and cautionary markings on
batteries, chargers and products using
batteries.
▪Do not allow anything to cover or clog the
charger vents.
▪Do not expose charger to rain, snow or wet
conditions.
▪To reduce the risk of damage to electric plug
and cord, pull by plug rather than cord when
disconnecting charger.
▪Use of an attachment not recommended or
sold by the manufacturer may result in a risk of
fire, electric shock, or injury to persons.
▪Make sure cord for charger is located so that it
will not be stepped on, tripped on, tripped over,
or otherwise subjected to damage or stress.
▪Do not abuse the power cord. Never use the
cord to carry the charger. Keep cord away from
heat, oil, water, sharp edges, or moving parts.
Replace damaged cords immediately.
▪Do not operate charger if it has been damaged
in any way, take it to a qualified service center
for repair.
▪To reduce risk of electric shock, unplug
charger from outlet before attempting any
maintenance or cleaning. Turning off controls
will not reduce this risk.
▪Do not disassemble charger or battery
cartridge, take it to a qualified service center
when repair is required. Incorrect reassembly
may result in a risk of electric shock or fire.
▪Do not charge battery pack when temperature
is below 0°C (32°F) or above 40°C (104°F).
Battery Pack
▪Do not attempt to use a step-down
transformer, an engine generator or DC power
receptacle.
▪Do not short the battery pack: Do not touch the
terminals with any conductive material. Avoid
storing battery cartridge in a container with
other metal objects such as nails, coins, paper
clips, etc.
▪Do not expose battery cartridge to water or
rain. A battery short can cause large current
flow, overheating, possibly burns and even a
breakdown.
▪Do not store the machine and battery Pack in
locations where the temperature may reach or
exceed 50°C (122°F).
▪Do not incinerate the battery pack even if it is
severely damaged or completely worn out. The
battery pack can explode in a fire.
▪Be careful not to drop, shake, or strike the
battery.
▪Do not charge inside a box or container of any
kind. The battery must be placed in a well
ventilated are during charging.
▪Do not dispose of battery packs into household
waste, fire or water. Battery packs should be
collected, recycled or disposed of in an
environmentally friendly manner.
▪
Call the authorized warranty centers for
places to dispose of damaged or inoperable
batteries.

MODEL No: FLEXC-3PX
FLEXC-8PX
FLEXC-11PX
FLEXC-12PX
INSTRUCTION MANUAL 10.8V Cordless Shut-off Screwdriver
www.mountztorque.com
FUNCTIONAL DESCRIPTION
This industrial shut off screwdriver is designed for nut tightening/loosening and screw driving/loosening. It is
not appropriate to use for wood/mild steel drilling. Please refer to the figure on the page to familiarize yourself
with the major components of this tool before use.
1. Power Switch - Pressing the power switch will energize the LED light (2) in front and the tool starts to
rotate. When released, power to the motor will cease and the tool stop s working immediately. The LED
light will remain on for 10 seconds and then off. A small amount of sparks may appear next to the motor.
This is normal as energy is being converted to heat for dissipation.
2. Lamps - It turns on every time that the trigger is pressed, and helps to illuminate the darks areas.
3. Rotation Direction Switch - Pushing this switch to the left will cause the chuck to spin in a ”forward”
direction, and “reverse” when pushed to the right.
4. Quick Change Holder - This driver accepts only 1/4”(6.35mm) hexagonal bits. Be sure the bit is fully
engaged by the chuck before operating tool. Otherwise, the bit may fly off and cause property damage or
personal injury.
5. Lanyard - The lanyard is provided to hang on the tool when not using it. Or, the lanyard can go with the
belt that would provide more convenience when carrying the tool on one person. Also, it would prevent the
tool from being dropped.
6. Li-ion Battery - This battery provides electrical power to the motor. Please charge it according to the
charging instruction listed in this manual.
7. Torque Adjustment Cover - Open the torque adjustment cap. Use the torque adjustment tool to either
tighten or loosen the spring until the desired torque is reached. Use a torque tester to view and verify
torque setting.
WARNING: Use the tool to either tighten or loosen nuts and screws ONLY in specified torque and voltage
ranges.
Figure 1

MODEL No: FLEXC-3PX
FLEXC-8PX
FLEXC-11PX
FLEXC-12PX
INSTRUCTION MANUAL 10.8V Cordless Shut-off Screwdriver
www.mountztorque.com
ASSEMBLY
Check for damage to the tool; parts or accessories that may have occurred during shipping . Take the time to
thoroughly read and understand this manual prior to operation.
This tool contains:
- 1 10.8V cordless shut off Screwdriver
- 1 instruction manual
- 1 torque adjusting tool
- 1 Battery 10.4v and Charger 100-240 volts (sold separately)
Attaching or Removing Battery Pack
1. To connect battery, line up the tracks and attach the battery pack. Slide toward the battery pack until it locks
into positions with a click.
2. To remove the battery pack, push on the RED button on the top and release the battery pack.

MODEL No: FLEXC-3PX
FLEXC-8PX
FLEXC-11PX
FLEXC-12PX
INSTRUCTION MANUAL 10.8V Cordless Shut-off Screwdriver
www.mountztorque.com
OPERATIONS
This product had been carefully inspected prior to leaving the factory. It should provide you with years of
satisfying service under normal operating conditions. Do not, however, force the tool to perform outside its
designed parameters. Such usage will: void the warranty.
WARNING! Read the manual instruction before operating the tool. Always wear safety glasses or face shields
when operating this product. Failure to do so can result in dust, shavings or loose particles being thrown into
your eyes.
1. Slide battery into the bottom of the housing handle until a click sound occurs. Do not force battery, as it
should slide easily into place with nominal force. Any difficulty doing so would indicate an incorrect
alignment.
2. Select a proper size drill/drive bit and insert into the quick-change holder.
3. Press the trigger to start operating the tool and the LED light will illuminate. Check the torque setting on a
torque tester to see if the desired torque reached. If not, adjust the torque setting. See the steps for
adjusting the torque setting on page 8.
4. Verify the torque requirements for the application before the assembly process. 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. When the torque setting is achieved, the tool will automatically shut off.
Forward/ Reverse Rotation Switch Operation
To prevent damage, do not press Forward/ Reverse button until the anvil comes a complete stop.
Forward Rotation Operation
Push the button for forward rotation. After use, set the lever to its center position.
Reverse Rotation Operation
Push the button for reverse rotation. Check the direction of rotation before use. After use, set the button to its
center position.
LED Indicator LED’s

MODEL No: FLEXC-3PX
FLEXC-8PX
FLEXC-11PX
FLEXC-12PX
INSTRUCTION MANUAL 10.8V Cordless Shut-off Screwdriver
www.mountztorque.com
A green light shows the operator that the preset torque is reached and the tightening is OK.
A red light and one long "beep" sound signals the operator that the preset torque is not
reached. The fastener must be tightened again.
A flashing yellow light and five short “beep” sounds give an early warning when it is
time for recharging.
A yellow light and one long “beep” sound means a battery lock , which indicates the battery
pack must be changed immediately.
Steps for Adjusting the Torque Setting
1. Lift the torque adjustment cover. Take the torque-adjusting tool and insert it to the quick-change holder
and turn until the adjusting hole appears.
2. Use the torque-adjusting tool to turn clockwise
to increase torque and turn counterclockwise to
decrease torque.

MODEL No: FLEXC-3PX
FLEXC-8PX
FLEXC-11PX
FLEXC-12PX
INSTRUCTION MANUAL 10.8V Cordless Shut-off Screwdriver
www.mountztorque.com
Charging the battery - for Li-ion battery [NOTE]
▪When charging a cool battery pack (below 0°C(32°F) in a warm place, leave the battery pack at the place
and wait for more than one hour to warm up the battery to the level of the ambient temperature. Otherwise
battery pack may not be fully charged.
▪Cool down the charger when charging more than two battery packs consecutively.
▪Do not insert your fingers/ nails into contact hole, when holding charger or any other occasions.
1. Do not place the Battery Charger in warm areas, and it requires a well-ventilated area.
2. Plug charger into the AC outlet.
CAUTION: Ensure that the power source to be utilized conforms to the power requirement specified on
the product nameplate.
3. Turn the battery up side down and slide the battery into charger while keeping the alignment marks
line up. Slide the forward in the direction of the arrow. Do not force battery, as it should slide easily into
place with nominal force. Any difficulty doing so would indicate an incorrect alignment.
4. If the power lamp (red) does not light-up immediately or goes out soon after the charger is plugged in,
consult an authorized service center.
5. During charging, the charging lamp (green) will start flashing. When charging is completed, an internal
electronic switch will automatically be triggered to prevent overcharging. Charging will not start if the
battery pack is warm. For example, immediately after heavy-duty operation. The yellow standby lamp
will be flashing until the battery cools down.
6. If the temperature of the battery pack is 0°C or less, charging takes longer to fully charge the battery
pack than the standard charging time. Even when the battery is fully charged, it will have
approximately 50% of the power of a fully charged battery at normal operation temperature.
7. Once the battery is fully charged, the green lamp will be lit to indicate that it is in a trickle charge mode.
8. Li-ion Battery Pack [NOTE] Your battery pack is not fully charged at the time of purchase. Be sure to
charge the battery before first use.

MODEL No: FLEXC-3PX
FLEXC-8PX
FLEXC-11PX
FLEXC-12PX
INSTRUCTION MANUAL 10.8V Cordless Shut-off Screwdriver
www.mountztorque.com
CHARGER LAMP INDICATIONS
Red Light
Charger is plugged into the AC outlet. Ready to charge
�
Yellow Flashing
1) When the temperature of the battery is too low (<0°C / <32°F), it is in a
trickle charge mode until the temperature of the battery is over (0°C /
<32°F). The lamp will change from the Yellow Flashing to Green Flashing
automatically and start to charge. (If after 70 minutes, the lamp changes
from yellow flashing to yellow lit, consult an authorized dealer.)
2) When the temperature of the battery is too high (>40°C / 104°F), it is in a
trickle charge mode until the temperature of the battery drops under (40°C
/ 104°F). The lamp will change from the Yellow Flashing to Green Flashing
automatically and start to charge. (If after 70 minutes, the lamp changes
from yellow flashing to yellow lit, consult an authorized dealer.)
3) When the voltage of the battery is too low (below 9 voltage), it is in a
trickle charge mode until the voltage of the battery reaches the standard
value. The lamp will change from the Yellow Flashing to Green Flashing
automatically and start to charge. (If after 20 minutes, the lamp changes
from yellow flashing to yellow lit, consult an authorized dealer.)
Yellow Light
The battery and the charger are not connected. If the yellow lit still on after
trying re-attach the battery, consult an authorized service center.
Green Flashing
Now start charging
Green Flashing
Battery is approximately 50% charged