AUTO JACK CTW12-38 Torque Wrench Instruction Manual

June 6, 2024
AUTO JACK

AUTO JACK CTW12-38 Torque Wrench

Instructions for use

  1. Hold the wrench firmly with the graduations on the handle clearly visible. Unlock the lock nut at the bottom of the handle by turning it anti-clockwise.
  2. Set the amount of torque required by turning the handle untill the exact amount is indicated by the graduations.

Example. Setting 95 ft. lbs.

  1. Turn the handle until the zero graduation on the edge of the handle is lined up with the vertical mark on the shaft, and is even with the 90ft.lbs. graduation.
  2. Turn the handle slowly clockwise until the 5 graduation on the handle is aligned with the vertical mark on the shaft.
  3. Lock the handle securely by turning the lock nut clockwise. The Torque wrench is now ready to use.
    Note. When setting for metric use the same procedure on the reverse side of the shaft.

Attach the correct socket or attachment to the square drive for the required job. Apply to nut or bolt, select the direction of rotation using the clip on the head, and pull handle until feel and/or hear the wrench click. Release pull and the wrench will automatically reset for next operation.

DO NOT CONTINUE TO PULL AFTER WRENCH RELEASES.
USE SPECIAL CARE AT LOW TORQUE SETTINGS THE PULL STOPS WHEN WRENCH CLICKS. THIS CAN DAMAGE YOUR WRENCH OR THE APPLICATION.

Caution

  1. If the wrench has been in storage for some time or not seen much use, operate it several times at a low torgue setting. This allows a special internal lubricant to recoat internal working parts.
  2. When not in use keep it set to the lowest torque setting.
  3. Do not select below the lowest graduated torque setting.
  4. Do not continue pulling on the wrench after pre-set torque has been reached and the wrench has released. Continuing to apply pressure after the wrench has released, will result in damage to the part being torqued by applying more than the specified amount of torque.
  5. The wrench is hard wearing and designed for shop use, but it also a precision measuring instrument and should be treated as such.
  6. The wrench may be cleaned by wiping, do not imerse in any cleaner this may affect special high pressure lube that the wrench is packed with at the factory.
  7. This torque wrench was calibrated and tested before leaving the factory, it is calibrated to +4%.

THIS IS A PRECISION MEASURING INSTRUMENT, CALIBRATIONS AND SERVICING MUST BE DONE REGULARLY AND IT IS THE OWNERS RESPONSIBILITY.
Example setting Torque to 95 ft. lbs.

TORQUE CONVERSION TABLES

Ft lbs Foot Pounds| M.Kgs or M.Kps Meters Kilo Grams| Nm Newton Meters
---|---|---
5| 0.69| 6.78
10| 1.38| 13.56
15| 2.07| 20.34
20| 2.76| 27.12
25| 3.46| 33.90
30| 4.15| 40.68
35| 4.84| 47.46
40| 5.53| 54.24
45| 6.22| 61.02
50| 6.91| 67.80
55| 7.60| 74.58
60| 8.29| 81.36
65| 8.98| 88.14
70| 9.67| 94.42
75| 10.37| 101.70
80| 11.06| 108.48
85| 11.75| 115.26
90| 12.44| 122.04
95| 13.13| 128.82
100| 13.82| 135.60
105| 14.51| 142.38
110| 15.20| 149.16
115| 15.89| 155.94
120| 16.58| 162.72
125| 17.28| 169.50
130| 17.97| 176.28
135| 18.66| 183.06
140| 19.35| 189.84
145| 20.04| 196.62
150| 20.73| 203.40
155| 21.42| 210.18
160| 22.11| 216.96
165| 22.80| 223.74
170| 23.49| 230.52
175| 24.19| 237.70
180| 24.88| 244.08
185| 25.57| 250.86
190| 26.26| 257.64
195| 26.59| 264.42
200| 27.64| 271.20
205| 28.33| 277.98
210| 29.02| 284.76
215| 29.71| 291.54
220| 30.40| 298.32
225| 31.09| 305.10
230| 31.78| 311.88
235| 32.47| 318.66
240| 33.16| 325.44
245| 33.85| 332.22
250| 34.54| 339.00
260| 35.88| 352.56
270| 37.26| 366.12
280| 38.64| 379.68
290| 40.02| 393.24
300| 41.40| 406.80
Nm Newton Meters| Ft lbs Foot Pounds| M.Kgs or M.Kps Meters Kilo Grams
---|---|---
10| 7.38| 1.02
20| 14.75| 2.04
30| 22.13| 3.06
40| 29.50| 4.08
50| 36.88| 5.10
60| 44.26| 6.12
70| 51.63| 7.14
80| 59.01| 8.16
90| 66.38| 9.18
100| 73.76| 10.20
110| 81.14| 11.22
120| 88.51| 12.24
130| 98.89| 13.26
140| 103.26| 14.28
150| 110.64| 15.30
160| 118.02| 16.32
170| 125.39| 17.34
180| 132.77| 18.36
190| 140.14| 19.38
200| 147.52| 20.40
210| 154.90| 21.42
220| 162.27| 22.44
230| 169.65| 23.46
240| 177.02| 24.48
250| 184.40| 25.50
260| 191.78| 26.52
270| 199.15| 27.54
280| 206.53| 28.56
290| 213.91| 29.58
300| 221.29| 30.60
310| 228.67| 31.62
320| 236.05| 32.64
330| 243.43| 33.66
340| 250.81| 34.68
350| 258.30| 35.70
360| 265.68| 36.72
370| 273.06| 37.74
380| 280.44| 38.74
390| 287.82| 39.78
400| 295.20| 40.80
410| 302.58| 41.82
M.Kgs or M.Kps Meters Kilo Grams| Nm Newton Meters| Ft lbs Foot Pounds
---|---|---
1| 9.81| 7.23
2| 19.61| 14.47
3| 29.42| 21.70
4| 39.23| 28.93
5| 49.04| 36.17
6| 58.84| 43.40
7| 68.65| 50.63
8| 78.46| 57.87
9| 88.26| 65.10
10| 98.07| 72.33
11| 107.88| 79.57
12| 117.68| 86.80
13| 127.49| 94.03
14| 137.30| 101.27
15| 147.11| 108.50
16| 156.91| 115.74
17| 166.72| 122.97
18| 176.53| 130.20
19| 186.33| 137.43
20| 196.14| 144.67
21| 205.95| 151.90
22| 215.75| 159.13
23| 225.37| 166.37
24| 235.37| 173.60
25| 245.18| 180.84
26| 254.98| 188.08
27| 264.79| 195.30
28| 274.60| 202.54
29| 284.41| 209.77
30| 294.22| 217.00
31| 304.03| 224.23
32| 313.84| 231.46
33| 323.65| 238.69
34| 333.46| 245.92
35| 343.35| 253.05
36| 353.16| 260.28
37| 362.97| 267.51
38| 372.78| 274.74
39| 382.59| 281.97
40| 392.40| 289.20
41| 402.21| 296.43

CONVERSION FORMULAE

1 Cm-Kg – 13.887 in-oz
1 Cm-Kg – 0.8677 in-lb
1 M. Kg – 7.233 ft-lb
1 Kp-Cm – 1 Cm-Kg
1 Cm-Kg – 0.098 Nm| 1 dNm = 14.161 in-oz
1 Nm = 8.8507 in-oz
1 Nm = 0.73756 ft-lb
1 M.Kp = 1 M.Kg
1 Mkg = 9.80665 Nm
---|---

1 ft-lb = 12 in-lb

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