Wren WEDCX Series User manual

Operating Manual
for Battery Torque Wrench
WEDCX series
The torque can be adjusted up to 8000Nm. The WEDCX series
battery torque wrench with the latest gearbox design is more
powerful and lighter.
中国
杭州
WWW.WRENCHINA.COM
Hangzhou WREN Hydraulic Equipment Manufacturing Co., Ltd
Hangzhou,China

Operating Manual for battery Torque Wrench
Hangzhou WREN Hydraulic Equipment Manufacturing Co., Ltd
1
Content
Important Safety Notice .................................................................................................................................................................... 3
Digital tool System Security ....................................................................................................................................................3
Safety Matters of Lithium Battery Pack.................................................................................................................................4
1. General Information ........................................................................................................................................................................5
1.1 System Components ........................ ..................................................................................................................................5
1.2 Detailed Description ...........................................................................................................................................................5
1.2.1 Torque Range...........................................................................................................................................................5
1.2.2 Battery Description ................................................................................................................................................5
1.2.3 Environmental Description ..................................................................................................................................6
2. Battery Torque Wrench..................................................................................................................................................................6
2.1 Overview of Battery Torque Wrench...................................................................................................................................6
2.1.1 Trigger Key ...............................................................................................................................................................7
2.2 Screen Guide..........................................................................................................................................................................7
2.3Lithium Battery Pack ............................................................................................................................................................8
2.3.1 Insert and Remove the Lithium Battery ...........................................................................................................8
2.3.2 Check Charging .......................................................................................................................................................8
2.4 Battery Charger ....................................................................................................................................................................8
2.4.1 Battery Charging .....................................................................................................................................................9
2.4.2 Charging Error .........................................................................................................................................................9
3.0 LCD Displaying Panel....................................................................................................................................................................9
3.1 Home Screen........................................................................................................................................................................10
3.1.1 Torque Value..........................................................................................................................................................10
3.1.2 Working Status ......................................................................................................................................................10
3.1.3 Unit............................................................................................................................................................................11
3.1.4 Mode.........................................................................................................................................................................11
3.2 Mode Setting.......................................................................................................................................................................11

Operating Manual for battery Torque Wrench
Hangzhou WREN Hydraulic Equipment Manufacturing Co., Ltd
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3.2.1 Torque Value Increase or Decrease ................................................................................................................11
3.2.2 Gear Shift.................................................................................................................................................................11
3.2.3 Default Value Switch ............................................................................................................................................11
3.3 Preset ....................................................................................................................................................................................12
3.3.1 Value for Unscrew.................................................................................................................................................12
3.3.2 Default Value .........................................................................................................................................................12
3.3.3 Number of Cycles .................................................................................................................................................12
3.4 Unit Setting .........................................................................................................................................................................13
3.5 About this Machine ..........................................................................................................................................................13
3.6 Switch between Chinese and English ..........................................................................................................................13
3.7 Calibration ...........................................................................................................................................................................13
3.7.1 Calibration ..............................................................................................................................................................13
3.7.2 Maximum Value and Minimum Value ............................................................................................................13
4.0 General Operating Instruction ................................................................................................................................................. 14
4.1 Reaction Arm...................................................................................................................................................................... 14
4.1.1 Installation of reaction arm ...............................................................................................................................14
4.1.2 Height of Reaction Arm ......................................................................................................................................15
4.1.3 Reaction Arm..........................................................................................................................................................15
4.1.4 Touching Point........................................................................................... ...........................................................16
4.2 Operating Procedure.........................................................................................................................................................17
5.0 Error................................................................................................................................................................... ............................. 17
6.0 Contact WREN.............................................................................................................................................................................. 18

Operating Manual for battery Torque Wrench
Hangzhou WREN Hydraulic Equipment Manufacturing Co., Ltd
3
Important safety notice
Digital tool
system security
WREN battery torque wrench is safe and reliable. Failure to follow the precautionary
measures and instructions outlined below may result in injury to tools, operators, and
personnel present.
WREN is not responsible for any such injury.
The intended use of battery torque wrenches is for commercial and industrial bolt
tightening.
Please do not operate the battery torque wrench until you have read and understood
this manual and noticed the safety tips displayed in the battery torque wrench system
and the entire manual.
Only qualified personnel trained in the safe operation of battery torque wrenches can
attempt to install and operate battery torque wrenches.
Improper operation and use can cause serious or fatal injuries.
Do not try to disassemble or repair the battery torque wrench, this will invalidate the
warranty. If there is a malfunction, damage or the tool does not operate normally,
please contact our company.
Technical support (see section 6.0-contact us)
Only store and use battery torque wrenches in a compliant environment. Please refer
to Section 1.2.3-Environmental Specifications.
Do not operate an battery torque wrench in a flammable and explosive environment,
including but not limited to: flammable liquid, gas or dust. Battery torque wrenches
produce sparks that can ignite these substances.
Do not expose the battery torque wrench to a humid environment. Water will damage
the battery torque wrench and increase the risk of electric shock.
After a long period of use, the battery torque wrench will heat up. It is recommended
to use short and medium time intervals to cool down to prevent operator injury or
damage to the battery torque wrench.
During the operation of the battery torque wrench, wear goggles to ensure that the
human body is kept away from the contact point between the moving parts of the
wrench and the reaction arm.
Do not exceed the maximum torque of the battery torque wrench, which will damage
the tool, and no warranty service is provided.

Operating Manual for battery Torque Wrench
Hangzhou WREN Hydraulic Equipment Manufacturing Co., Ltd
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The battery torque wrench has been calibrated. The calibration must be carried out
under the guidance of our staff. Improper calibration will reduce the torque accuracy
and damage the tools and bolts.
Safety matters of lithium battery pack
This battery torque wrench can only use the supporting lithium battery pack. Using
other batteries will damage the tool.
Lithium battery packs can only be charged on the matching battery charger. If you
use an incompatible charger, it will cause damage to the lithium battery.
Keep the lithium battery pack away from any metal objects. If metal objects come
into contact with the battery, it will short-circuit the battery and cause injury to the
operator and the battery.
Do not expose the lithium battery pack to a humid environment, as this will cause
damage to the lithium battery and increase the risk of electric shock.
Do not use defective or deformed lithium batteries. Do not try to open the battery,
do not short-circuit the battery, otherwise it will damage the battery and the
operator.
If liquid comes out of the battery, avoid contact. Once in contact, rinse immediately
with water. If it gets into eyes accidentally, rinse immediately with water and seek
medical attention. Liquid from the battery may cause irritation or burns.
The battery pack cannot be disposed of with conventional waste products. Please
contact us or your dealer to return the battery.

Operating Manual for battery Torque Wrench
Hangzhou WREN Hydraulic Equipment Manufacturing Co., Ltd
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1. General information
WEDCX series battery torque wrenches are used in working environments with
limited power and air supply, with high power, wide application and strong
reliability. The latest single/double speed gearbox design is applied, with stronger
functions and lighter weight.
The torque is adjustable up to 8000Nm.
1.1 System Components
Gearbox Assembly
18V/5.2Amp Lithium Battery Pack
Battery Charger
Reaction Arm and Circlip
Operating Manual
Tool Box
Note: Additional parts may be delivered with the battery torque wrench
1.2 Detailed Description
1.2.1 Torque Range
Tool Square Drive Torque(Nm) Rotating speed
Type inch Min Max RPM
WED07CX ¾″ 170 700 13
¾″ 300
WED14CX
400
1400 6
7000 2
WED20CX 1″
1350
2000 4
WED70CX
1″
1500 8000 1.7
WED40CX
1.5″
800 4000 2
WED80CX 1.5″
Precision ±5%，Repeat accuracy ±3%
1.2.2 Battery Description
When using an battery torque wrench, please confirm that all batteries meet the following specifications.

Operating Manual for battery Torque Wrench
Hangzhou WREN Hydraulic Equipment Manufacturing Co., Ltd
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Battery Output
Voltage 18 VDC
Current 30 A
Charging Time 60 min
Charger Voltage
Input 115 VAC/230 VAC
Output 12 - 18 VAC
Charger output current 2.5 A
Sheet 1.2.2：Battery Description
1.2.3 Environmental Description
Notice! The battery torque wrench can only be used if it meets the following storage environment and
operating specifications.
Temperature Range
°C
°F
Working Temperature
0-35
32-95
Charging Temperature
0-50
32-122
Contributing Temperature
-25-70
-13-158
Humidity 10% to 90% Without Cooling
Impact
10G ，DIN IEC 68-2-6/29
Shock
1G，10-150Hz DIN IEC 68-2-6/29
Required Operating Conditions -Non-flammable gas environment
-Dry place
Sheet 1.2.3：Environmental Description
2.Battery Torque Wrench
The following is an overview of the battery torque wrench, display, battery pack and charger.
2.1 Overview of the Battery Torque Wrench
Battery Torque Wrench（Drawing 2.1-1）Activated by the positive and negative switch trigger. The
battery pack is installed at the bottom of the handle.
1. Trigger lock-control the direction of rotation and prevent accidental
triggering.
2. Trigger- trigger switch
3. Lithium battery pack-see section 2.3-Lithium battery pack
4. Battery release button-refer to 2.3.1-insert/remove lithium battery
pack.
5. LCD screen-status display, menu access and control

Operating Manual for battery Torque Wrench
Hangzhou WREN Hydraulic Equipment Manufacturing Co., Ltd
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Figure 2.1-1：Battery Torque Wrench
2.1.1 Trigger Lock
The trigger lock is only used when the motor stops running. The trigger lock can control
the forward and reverse rotation of the motor and disable the trigger. It is recommended to
adjust the trigger lock to the locked position when the wrench is not used.
tight
loosen
Right side =
Left side =
In the middle =locked
2.2 Screen Guide
The buttons are located at the bottom of the screen. Contains "▲", "▼", and "M"
three buttons. The "▲" and "▼" keys are used for menu navigation and value
increase or decrease. The "M" key is used to confirm options and enter.
Drawing 2.2-1：Display Screen and buttons
Note: When pressing the button, keep pressing for one second to ensure that
the button is activated.
5
4
▲ M ▼
▼
1
3
2

Operating Manual for battery Torque Wrench
Hangzhou WREN Hydraulic Equipment Manufacturing Co., Ltd
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2.3 Lithium Battery Pack
Notice! Battery torque wrenches can only use the matching lithium battery pack. Using other
batteries will damage them and cause personal injury.
Keep the lithium battery pack away from any metal objects. If a metal object is used to
connect the battery, it will short-circuit the battery and cause injury to the operator and the
battery.
The lithium battery powers the battery torque wrench motor and the liquid crystal display. In
order for the battery torque wrench to be in the best working condition, confirm that the
battery is fully charged and in good condition before use. Under optimal conditions, the
battery can cycle approximately 100 feet of torque at 50% of the maximum torque.
Note: Operating torque, battery condition, aging degree and operating temperature will affect
the actual torque cycle times.
2.3.1 Insert and remove the lithium battery
Insert lithium battery：
1. Confirm that the trigger is in the off position.
2. Align the battery with the slot at the bottom of the handle.
3. Slide the battery into place.
4. Test whether the battery is in place and try to slide its position.
Remove the lithium battery:
1. Press the battery release button.
2. Slide the battery out from under the handle.
2.3.2 Check Charging
Check Battery Charging
1. Press the red "charge" button of the battery
The four green indicator lights will light up. If all the indicators are on, the battery is fully charged. If no
indicator light is on, the battery is exhausted and needs to be charged. (Refer to 2.1.1-Battery charging)
2.4 Battery Charger
Notice! Lithium battery packs can only be charged on the matching battery charger. If you
use an incompatible charger, it will cause damage to the lithium battery.
The charging status of the battery charger is used to remind the operator that it is
charging, charging is complete or there is a fault.

Operating Manual for battery Torque Wrench
Hangzhou WREN Hydraulic Equipment Manufacturing Co., Ltd
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2.4.1 Battery Charging
Note: The charging temperature range
is 0℃-50℃ (32℉-122℉) charging:
1.1. Insert the charger plug into the socket. The red warning light is on for one second and the green
status indicator is on for one second
2.2. Align the battery with the charger card slot.
3.3. Slide the battery into place.
4.Note: When charging, the green status light will flash.
When the battery is fully charged, the green status light will stop flashing and stay
on. Before removing the battery, the charger will switch to the hold mode to ensure
that the battery has the maximum power.
Remove the battery
1.1. Slide the battery out of the charger.
2.2. Check whether the battery is fully charged.
(Refer to 2.3.2: Check charging)
2.4.2 Charging Error
3.0 LCD Display
caution
The red warning light is always on:
The battery is not charged because its temperature is not within the charging
temperature range. When the battery temperature is within the required range, the
red warning light will turn off and charging will begin.
The red warning light flashes:
The battery may not be in the correct position on the charger. Remove the battery
and insert it again. If the red warning light continues to flash, it means that the
battery is defective, and immediately remove the battery.
If the problem persists, contact our WREN for technical support (refer to 6.0-Contact
Us) or contact your dealer.
The LCD display screen may be damaged when it is subjected to mechanical shock
or any force applied to the module.

Operating Manual for battery Torque Wrench
Hangzhou WREN Hydraulic Equipment Manufacturing Co., Ltd
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3.1 Main screen
The LCD display can be damaged by humidity, water and high temperature.
Such situations should be avoided. Wipe it clean and keep it dry during the
storing
.
The digital controller contains a LCD screen. This screen has many functions.
The following describes some of the functions and how to operate them.
Refer to 2.2-Screen Navigation to understand the key usage methods mentioned
in this section.
The main screen serves as the battery torque wrench control center. Displays
target torque, torque unit.
3.1-1：main screen
3.1.1 Torque
Different modes have different definitions：
mode 1：show torque
mode 2：show speed
mode 3：value switch
“▲”increasing the value，one click +1，holding +10，long holding +100
“▼”decreasing the value，one click +1，holding +10，long holding +100
3.1.2 Working state
2 working states：“RUN” and “READY”
RUN:Running status, press the trigger to show RUN
READY:shutdown for stand-by
mode
target torque
unit
state

Operating Manual for battery Torque Wrench
Hangzhou WREN Hydraulic Equipment Manufacturing Co., Ltd
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3.1.3 Unit
different units in different models
mode 1：
Nm、Ftlbs、KGFM。 mode
2：Grade。
mode 3：Nm。
3.1.4 Mode
3 modes：1、2、3。
You can set the buzzer notification function on this screen, .
3.2 Mode setting
Press M to enter the main menu. Press“▲”“ ▼”to switch the mode,press“ M”to confirm the choice and
back to main menu。
3.2.1 Increase/decrease the torque
“▲”“ ▼”can increase or decrease the torque，unit can be choosen
3.2.2 Speed switch
Divide the torque range into 0-99 grades, unit in Gradeonly
3.2.3 Default switching
Press "▲" and "▼" to select the preset value, and press "M" to enter the editing of
the preset value.

Operating Manual for battery Torque Wrench
Hangzhou WREN Hydraulic Equipment Manufacturing Co., Ltd
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3.3 Preset
The prest value interface defines the disassembly value, preset value, and number of
cycles.
3.3.1 Disassembly value
Disassembly value is locked on the maximum torque and is non-editable.
3.3.2 Preset
Using the "▲" and "▼" to select the corresponding preset value, press "M" to enter the
editing mode, and holding "M" to exit the interface after setting
Note: The preset value is in Nm only and cannot be set to exceed the maximum rated
torque!
Caution！
3.3.3 Cycle number
The number of cycles ranges from 01 to 10. Holding M to exit this screen, .
Note: In mode 3, the preset number of work interface cycles is the same as this.
3.3.3 Quit

Operating Manual for battery Torque Wrench
Hangzhou WREN Hydraulic Equipment Manufacturing Co., Ltd
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Press“ M”to back to the main menu
3.4 Unit setting
Enter the unit setting function, press“ M”to enter the unit setting , press“▲”“ ▼”to
choose the unit, press “ M”for confirmation and back to the main menu.
3.5 About the machine
All kinds of information about the machine can be queried in the
menu ,including serial number, maximum torque, minimum torque, model,
factory date, use times.
3.6 Chinese/English switch
Switch Chinese/English in this mode
3.7 Calibration
Caution All Settings on this mode must be performed under the guidance of engineers of
our company. Generally, users do not need to use this mode. Enter a six-digit
password to enter the calibration mode.
3.7.1 Calibration
Contact us
3.7.2 Maximum/Minimum torque

Operating Manual for battery Torque Wrench
Hangzhou WREN Hydraulic Equipment Manufacturing Co., Ltd
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4. General operating instructions
Caution Only trained and qualified personnel can operate this tool. This
section describes how to use the reaction arm.
4.1 Reaction arm
Caution！Always keep your body away from the moving part and reaction arm of the
battery torque wrench when using it. Otherwise could cause serious harm.
Make sure the reaction arm is firmly connected with the flange
before operating the battery torque wrench.
4.1.1 Installation of the reaction arm
Make sure the reaction arm and circlip are securely installed together before operating the battery torque
wrench, ensure that the reaction arm is in contact with a rigid contact point. Keep your body away from
the reaction arm when using the tool.
Clockwise Counterclockwise
Caution！
Keep your body away from the reaction arm
when using the tool.
Figure 4.1.1-2：forbidden to touch

Operating Manual for battery Torque Wrench
Hangzhou WREN Hydraulic Equipment Manufacturing Co., Ltd
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4.1.2 Height of Reaction Arm
Confirm that the highest point of the socket is consistent with the highest point of the
reaction arm, as shown in Figure 4.1.2-1. The highest point of the reaction arm cannot be
higher or lower than the highest point of the socket, as shown in Figure 4.1.2-2. Correct:
The reaction arm is at the same level as the socket.
Figure 4.1.2-1：Correct Height
Figure 4.1.2-1：Error Height
Error：The reaction arm arm length is too short or too long.
Improper use of the reaction arm will void the warranty and
cause premature failure of the battery torque wrench.
4.1.3 Reaction Arm
Confirm that the reaction arm is aligned with the nut, as shown in Figure 4.1.3-1. The reaction
arm cannot be longer or shorter than the nut, as shown in Figure 4.1.3-2

Operating Manual for battery Torque Wrench
Hangzhou WREN Hydraulic Equipment Manufacturing Co., Ltd
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Figure 4.1.3-1：Right length
Error：The reaction arm is too long or too short.
Figure 4.1.3-2: Error length
Contact WREN factory or distributor to customize the reaction arm。
4.1.4 Touching Point
Confirm that the reaction point is in contact with the middle of the reaction arm foot 。see
drawing 4.1.4-2.Do not touch the back of the reaction arm foot. Right: The reaction point is
touching the middle of the reaction arm.
Figure 4.1.4-1: Right touching point

Operating Manual for battery Torque Wrench
Hangzhou WREN Hydraulic Equipment Manufacturing Co., Ltd
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Wrong Operaion：Reaction point is at the position showed in below Figure 4.1.4-2
Figure 4.1.4-2: Error touching point
4.2 Operating Procedure
Torque Operation：
1. Fix the reaction arm to the battery torque wrench with a circlip.
2. Set target torque value by key“▲”“ ▼”
3. Put socket on square drive of battery torque wrench。
4. Turn on the switches for clockwise operation or counterclockwise
operation at corresponding position.
5. Press the operating trigger and hold.
Note: If you want to stop at any time, just release the trigger.
After reaching the target torque, the tool will automatically stop, then release the trigger. After
3 minutes without any operation, the tool will automatically enter the sleep mode and save the
parameters of the last operation. Press the trigger again to wake up the tool.。
5.Message reminder
The buzzer sounds 4 times continuously, and the display shows an error message: The
tool cannot reach the target torque value.
The buzzer keeps ringing and the screen displays an error message: The tool exceeds the
maximum current or the torque exceeds the maximum value.
The buzzer sounds intermittently and the screen displays a low battery prompt: battery
current is too low, stop operation immediately and replace the battery.
Reminder for right operation
When the buzzer is turned on, it has a reminder function. The buzzer will sound
once when the tool is working: the operation is successful.
Reminder for error operation

Operating Manual for battery Torque Wrench
Hangzhou WREN Hydraulic Equipment Manufacturing Co., Ltd
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6. Contact us
Hangzhou WREN Hydraulic Equipment Manufacturing Co., Ltd
Contact Phone：[phone]
FAX：[phone]
E-MAIL：[email protected]
Web：www.wrenchina.com
Address: No.24, Xingxing Road, Xingqiao, Linping, Hangzhou, China

电动扭矩扳手使用
手册
WED 优选系列
扭矩可调，最大可达 8000Nm，应用最新齿轮箱设计的 WEDCX 充电系列
功能更加强大，重量更轻。
中国
杭州
WWW.WRENCHINA.COM
雷恩液压设备制造有限公司
中国 杭州