TEKTON TRQ21101 1 4 Inch Drive Dual Direction Click Torque Wrench Instruction Manual
- June 14, 2024
- TEKTON
Table of Contents
TEKTON TRQ21101 1 4 Inch Drive Dual Direction Click Torque Wrench
Instruction Manual
Please read and understand entire manual, including all safety information, before using torque wrench. This tool is a precision measuring instrument. Handle with care and store properly. Do not attempt to increase leverage of this wrench with any other device. Failure to follow all instructions could result in damage to torque wrench, property damage, or injury
- At low torque settings, pull wrench slowly to observe click.
- Wrench is shipped ready to use, calibrated and tested to an accuracy of +/- 4% in CLOCKWISE direction and +/- 6% in COUNTERCLOCKWISE direction. To maintain this accuracy, it is important that wrench is stored with torque scale at lowest setting, 10 in.-lb (1.1 Nm). This setting relieves extra tension on the internal spring, eliminating fatigue that can adversely affect accuracy
SETTING TORQUE READING
This is a dual-range torque wrench marked with inch pounds (in.-lb.) and Newton meters (Nm) on opposite sides of handle. Wrench measures torque in clockwise and counterclockwise directions.
The torque scale is marked on the handle body with more precise subdivisions
on the knurled handle (Fig. A).
In these instructions the handle body scale will be referred to as the “main
scale” and the knurled handle scale will be referred to as the “micrometer
scale”. The micrometer scale has two rows, top row for in.-lb. and bottom row
for Nm.
Inch Pounds (Example reading: 105 in.-lb.)
VIEW TOP ROW OF MICROMETER SCALE
-
COARSE SCALE ADJUSTMENT (Fig. B):
Depress and hold the collar down while turning the knurled handle until its top edge is even with the horizontal “100” mark on the main scale and the ”0” mark on the micrometer scale is centered on the vertical line of the main scale. -
FINE SCALE ADJUSTMENT (Fig. C):
The micrometer scale’s top row divides the main scale markings into 10 divisions. Every micrometer scale marking equals 1 in.-lb., also known as the minimum increment. To increase torque from 100 to 105, turn micrometer handle clockwise until the “5” mark of the top row is centered on the vertical line of the main scale. 100 in.-lb. (main scale) + 5 in.-lb. (micrometer scale) = 105 in.-lb. -
Release collar to lock torque setting. Wrench is now set to measure 105 in.-lb. of torque and ready to use.
Newton Meters (Example reading: 11 Nm)
VIEW BOTTOM ROW OF MICROMETER SCALE
Setting desired torque on the Nm scale uses the same procedure described above for in.-lb. The micrometer scale’s bottom row divides the main scale markings into 10 divisions. Every marking equals 0.113 Nm, also known as the minimum increment.
To set a torque value of 11 Nm, turn knurled micrometer handle until top is aligned with “10.1” on main scale and the “0”mark on the bottom row of the micrometer scale is centered on vertical line of main scale. To increase torque from 10.1 to 11, turn micrometer handle clockwise until the 0.90 mark is centered on vertical line of main scale. 10.1 Nm (main scale) + 0.90 Nm (micrometer scale) = 11 Nm. Wrench is now set to measure 11 Nm of torque and ready to use.
WRENCH OPERATION
Fig. D illustrates the basic operation of the torque wrench. For accurate
operation, grasp the knurled handle only and apply pulling force. When the
desired torque setting is reached, the roller bearing and roller pin will roll
over each other, causing a click you can hear and feel. NOTE: At low torque
settings, click can be subtle. Use wrench in a quiet environment.
MAINTENANCE AND STORAGE
- If wrench has not been used for a long period of time, operate it several times at a low torque setting. This will allow internal lubricant to recoat moving parts.
- When wrench is not in use, keep adjustment at lowest torque setting, 10 in.-lb./1.1 Nm. (Fig. E). Do not turn handle below lowest torque setting.
- This wrench is a precision measuring instrument. Take care to operate wrench correctly. Store in a clean, dry environment.
- Clean wrench by wiping with a clean, dry, lint-free cloth. Do not immerse in any type of liquid or cleaner. This may damage the internal components of the wrench.
TORQUE UNIT CONVERSION TABLE
| INCH POUNDS (in.-lb.) | FOOT POUNDS (.-lb.) | NEWTON METERS (Nm) |
|---|
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
110
115
120
125
130
135
140
145
150
155
160
165
170
175| 0.42
0.83
1.25
1.67
2.08
2.50
2.92
3.33
3.75
4.17
4.58
5.00
5.42
5.83
6.25
6.67
7.08
7.50
7.91
8.33
8.75
9.17
9.58
10.00 10.42 10.83 11.25
11.67 12.08 12.50 12.91 13.33 13.75 14.17 14.58| 0.56
1.13
1.69
2.26
2.82
3.39
3.95
4.52
5.08
5.65
6.21
6.78
7.34
7.91
8.47
9.03
9.60
10.16
10.73
11.29
11.86
12.42
12.99
13.55
14.12
14.68
15.25
15.81
16.38 16.94
17.51
18.07
18.64 19.20
19.77
FOOT POUNDS (.-lb.)| INCH POUNDS (in.-lb.)| NEWTON METERS (Nm)
---|---|---
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20| 12
24
36
48
60
72
84
96
108
120
132
144
156
168
180
192
204
216
228
240| 1.35
2.71
4.06
5.42
6.78
8.13
9.49
10.84
12.20
13.55
14.91
16.27
17.62
18.98 20.33 21.69 23.04 24.40 25.76
27.11
NEWTON METERS (Nm)| INCH POUNDS (in.-lb.)| FOOT POUNDS (.-lb.)
---|---|---
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20| 8.85
17.70 26.55 35.40 44.25 53.10 61.95 70.80 79.65 88.50 97.35 106.20 115.06
123.91 132.76 141.61 150.46 159.31 168.16 177.01| 0.73
1.47
2.21
2.95
3.68
4.42
5.16
5.90
6.63
7.37
8.11
8.85
9.58
10.32 11.06 11.80 12.53 13.27 14.01 14.75
CONVERSIONS
1 in.-lb. = 0.0833 .-lb. 0.1129 Nm 0.0115 m-kg 1.1521 cm-kg| 1 .-lb. = 0.138 m-kg 12.0 in.-lb. 1.355 Nm 13.82 cm-kg| 1 Nm = 0.7375 .-lb. 8.8507 in.-lb. 0.1019 m-kg 10.19 cm-kg
NOTE: Exploded view diagram provided for illustration purposes only. Do not disassemble any part of torque wrench. There are no user serviceable parts on or inside wrench. Parts shown and assembly may differ slightly based on model.
Drive: 1/4 in.
Ratchet: 72 Tooth
Length: 8.8 in.
Dual Range: 10-150 in.-lb./1.1-16.9 Nm
Increment: 1 in.-lb./0.113 Nm
Accuracy: Clockwise +/-4%, Counterclockwise +/-5%
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