Westward 4RYL2 Service manual

Please read and save these instructions. Read through this owner’s manual carefully before using product. Protect yourself
and others by observing all safety information, warnings, and cautions. Failure to comply with instructions could result in
personal injury and/or damage to product or property. Please retain instructions for future reference.
Operating Instructions and Parts Manual 4RYL2, 4RYL3, 4RYL5, 4RYL6, 4RYL8, 4RYL9
FORM NUMBER
Printed in xxxxxx
MM/YY
Digital Torque Wrench
MAIN FEATURES
Digital torque value readout
+/- 2% accuracy clockwise
CW and CCW operation
Peak hold and track mode selectable
Buzzer and LED indicator for the pre-settable target torque
Engineering units(N-m, ft-lb, in-lb, kg-cm) selectable
Auto Sleep after about 5 minutes idle
Rechargeable batteries are compatible
NAMES AND FUNCTIONS OF PARTS
1. Reversible Ratchet Head
2. Direction Lever
3. LCD Readout
4. Buzzer
5. Communication Port
6. Button
7. Battery Compartment
8. Battery Cover
9. Ratchet Driver
10. Anti-slip Handle
11. LED Indicator
12. Torque Value
13. Unit(N-m,ft-lb,in-lb,kg-cm)
14. Peak/Track Mode
15. Power on/Clear Button
16. Unit/Setting Button
17. Up/Down Button

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Instructions and Parts
Digital Torque Wrench
SPECIFICATIONS
Accuracy *1 CW：±2%
CCW：±3%
Communication No
Operation Mode Peak hold / Track
Unit Selection N-m, ft-lb, in-lb, kg-cm
Head Type Lever Type Ratchet
Gear Teeth 36
Button 4
Bright LED 12LED/ 4Red+8Green
Pre-setting 1 set
Battery AA x 2
Battery Life *2
(Continuous operation) 110 hrs.
Battery Life *2
(Standby) 1 year
Operating Temperature
-10℃~60℃
Storage Temperature -20℃~70℃
Humidity Up to 90% non-
condensing
Drop Test 1 m
Vibration Test *3 10G
Life time *4 10000 cycle
Environmental test *5 Pass
Electromagnetic
compatibility test *6 Pass
* :Please see note
Note:
*1: The accuracy of the readout is guaranteed from
20% to 100% of maximum range + /- 1 increment.
The torque accuracy is a typical value. Calibration
point is at the middle line of black circle area on the
rubber grip. For keeping the accuracy,calibrate the
wrench for a constant period time (1 year). And the
accuracy is based on the zero degree of offset from
perpendicular drive.
*2: Use two AA batteries (Test condition: Toshiba
carbon-zinc R6UG battery)
*3: Horizontal and vertical test
*4: One cycle means swing the torque wrench from 0
N-m to maximum range and back to 0 N-m.
*5: Environmental test:
a. Dry heat
b. Cold
c. Damp heat
d. Change of temperature
e. Impact (shock)
f. Vibration
g. Drop
*6: Electromagnetic compatibility test:
a. Electrostatic discharge immunity (ESD)
b. Radiated susceptibility
c. Radiated emission
Model
Square
drive
(inches)
Max. operation range
4RYL2 1/4
30 N-m / 22.12 ft-lb /
265.5 in-lb / 306.1 kg-cm
4RYL3 3/8
135 N-m / 99.5 ft-lb /
1195 in-lb / 1378 kg-cm
4RYL5 1/2
135 N-m / 99.5 ft-lb /
1195 in-lb / 1378 kg-cm
4RYL6 1/2
200 N-m / 147.5 ft-lb /
1770 in-lb / 2041 kg-cm
4RYL8 1/2
340 N-m / 250.7 ft-lb /
3009 in-lb / 3469 kg-cm
4RYL9 3/4
410 N-m / 302.3 ft-lb /
3268 in-lb / 4184 kg-cm

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Instructions and Parts
Digital Torque Wrench
A
CTIVATION DURING SLEEP MODE
BEFORE USING THE WRENCH
BATTERY INSTALLATION
Remove the battery cover.
Insert two R6/AA batteries matching the -/+
polarities of the battery to the battery
compartment.
Put on the battery cap and rotate it tightly
according to the following figures.
POWER ON AND RESETTING THE WRENCH
Press to power on the digital torque wrench.
Usually press to reset the digital torque
wrench before using it.
ATTENTION:
If an external force is applied to the torque wrench
during power-on/reset or wake up period, an initial
torque offset will exist in the memory.
ACTIVATION DURING SLEEP MODE
ACTIVATION DURING SLEEP MODE
The wrench will auto sleep after about 5 minutes
idle for power saving. Press to wake up the
wrench during the sleep mode.
During communication period (send appears), the
sleep function is disabled.
RESETTING THE WRENCH
Press together will reset the
wrench.
If the wrench does not function normally,
press together to reset the wrench.
LOW BATTERY VOLTAGE PROTECTION
If the battery serial voltage is in low voltage
status, the wrench will display a battery
symbol and then turn off after a while.
+ -
Battery and cap

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Instructions and Parts
Digital Torque Wrench
SETUP
STEP 1: UNIT SELECTION
STEP 1: UNIT SELECTION
STEP 2: SET TORQUE VALUE
Pre-setting Unit: N-m
Press
Unit Selection: kg-cm
Unit Selection: in-lb
Unit Selection: ft-lb
Press
Press
*Note1, 2
Pre-setting Torque Value
Decrease Max. Torque Value
Press
Press
Increase Max. Torque Value
Note:
1. The “Unit Selection” is in sequential.
2. If is appeared, that means
this wrench has ever been applied more
than 110% of the max. torque.

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Instructions and Parts
Digital Torque Wrench
STEP 3 : PEAK HOLD /TRACK MODE
SELECTION
TRACK MODE OPERATION
Set Peak/Track mode
Set Peak/Track mode
Track Mode
Long Press
Press for Selection
Press
Press
Peak Hold Mode
Communication
Communication
(
Exit
)
Note:
1. Communication is for calibration of torque
wrench. Please contact your local dealer for
more information.
*Note 1
Note:
1. If is appeared, that means this
wrench has ever been applied more than
110% of the max. torque.
2. The green LED will be on for 90% of target
torque.
3. When reaching the target torque, the green
and red LED will be on at the same time.
Apply Torque
Current Torque Value
Current Torque Value
*Note 1
START
(System initial)
((…((… …))…)) ((…((… …)) …))
Buzzer
Setting Target Torque
Green LED
Reach 90% of Target Torque
Reach Target Torque
Reach 90% of Target Torque
*Note 2
Buzzer
(((((((( )))))))) ((((((( )))))))
Red LED
Reach Target Torque
*Note 3

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Instructions and Parts
Digital Torque Wrench
PEAK HOLD MODE OPERATION
Red LED
Reach Target Torque
Buzzer
(((((((( )))))))) ((((((( )))))))
Reach Target Torque
Current Max. Value
(Peak Hold)
START
Apply Torque
((…((… …))…)) ((…((… …)) …))
Buzzer Green LED
Reach 90% of Target Torque
Flashing
Apply Torque
Released
Setting Target Torque
Reach 90% of Target Torque
*Note 1
(System initial)
*Note 2
*Note 3
Note:
1. If is appeared, that means this
wrench has ever been applied more than
110% of the max. torque.
2. The green LED will be on for 90% of target
torque.
3. When reaching the target torque, the green
and red LED will be on at the same time.

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Instructions and Parts
Digital Torque Wrench
MAINTENANCE AND STORAGE
1. Over-torque (110% of Max. torque range)
could cause breakage or lose accuracy.
2. Do not shake violently or drop wrench.
3. Do not use this wrench as a hammer.
4. Do not leave this wrench in any place exposed to
excessive heat, humidity, or direct sunlight.
5. Do not use this apparatus in water.(not
waterproof)
6. If the wrench gets wet, wipe it with a dry towel as
soon as possible. The salt in seawater can be
especially damaging.
7. Do not use organic solvents, such as alcohol or
paint thinner when cleaning the wrench.
8. Keep this wrench away from magnets.
9. Do not expose this wrench to dust or sand as this
could cause serious damage.
10. Do not apply excessive force to the LCD panel.
11. Apply torque slowly and grasp the center of the
handle. Do not apply load to the end of handle
BATTERY MAINTENANCE
1. When the wrench is not used for an extended
period of time, remove the battery.
2. Keep a spare battery on hand when going on a
long trip or to cold areas.
3. Do not mix battery types or combine used
batteries with new ones.
4. Sweat, oil and water can prevent a battery’s
terminal from making electrical contact. To avoid
this, wipe both terminals before loading a battery.
5. Dispose of batteries in a designated disposal
area. Do not throw batteries into a fire.
ATTENTION:
One-year periodic recalibration is
necessary to maintain accuracy.
Please contact your local dealer for
calibrations.
Warranty
LIMITED ONE-YEAR WARRANTY
Should this product fail to perform satisfactorily due to a defect or poor workmanship within ONE YEAR from
the date of purchase, return it to the place of purchase and it will be replaced, free of charge. Incidental or
consequential damages are excluded from this warranty.
For Repair Parts, call 1-800-323-0620
24 hours a day – 365 days a year
Please provide the following:
-Model Number
-Serial Number (if any)