Advertisement
PUSH COLLAR TOWARD RATCHET HEAD TO "UNLOCK"
TURN THE HANDLE CLOCKWISE TO INCREASE THE TORQUE
TURN THE HANDLE CCW TO DECREASE THE TORQUE
PULL COLLAR TOWARD HANDLE TO "LOCK"
To set torque to 83 ft.lbs. turn the handle clockwise until the edge of the minor scale is even with the line marking "80" on the major scale and the "0 ft.lb." mark on the minor scale is centered as shown in fig. 1 below. Then, continue turning the handle clockwise until the "3 ft.lb." mark is centered as shown in fig.2.
TO OBTAIN\MULTIPLY NUMBER OF | Inch Ounces | Inch Pounds | Foot Pounds | Newton Meters |
Inch Ounces | 1 | 16 | 192 | 141.6 |
Inch Pounds | .06251 | 1 | 12 | 8.851 |
Foot Pounds | .005208 | .083332 | 1 | .7376 |
Newton-Meters | .007061 | .1130 | 1.356 | 1 |
GENERAL TORQUE SPECIFICATION CHART FOR ENGLISH FASTENERS (in Foot Poundsr)*
BOLT SIZE\MATERIAL OR GRADE | SAE 2 (Mild steel) | SAE 5 | SAE 8 | SOCKET HEAD CAP SCREWS | BRASS | Stainless AISI TYPE 303 |
1/4-20 | 6 | 11 | 12 | 13 | 5 | 5 |
1/4-28 | 7 | 13 | 15 | 16 | 6 | 7 |
5/16-18 | 13 | 21 | 25 | 27 | 8 | 9 |
5/16-24 | 14 | 23 | 30 | 33 | 9 | 10 |
3/8-16 | 23 | 38 | 50 | 52 | 15 | 17 |
3/8-24 | 26 | 40 | 60 | 60 | 16 | 18 |
7/16-14 | 37 | 55 | 85 | 86 | 23 | 25 |
7/16-20 | 41 | 60 | 95 | 95 | 25 | 28 |
1/2-13 | 57 | 85 | 125 | 130 | 32 | 37 |
1/2-20 | 64 | 95 | 140 | 145 | 34 | 40 |
9/16-12 | 80 | 125 | 175 | 180 | 44 | 50 |
9/16-18 | 91 | 140 | 195 | 210 | 48 | 54 |
5/8-11 | 111 | 175 | 245 | 255 | 68 | 75 |
5/8-18 | 128 | 210 | 270 | 290 | 73 | 80 |
3/4-10 | 180 | 300 | 425 | 410 | 104 | 115 |
3/4-16 | 200 | 330 | 460 | 445 | 115 | 125 |
7/8-9 | 275 | 450 | 660 | 580 | 155 | 170 |
7/8-14 | 300 | 490 | 700 | 615 | 170 | 185 |
1"-8 | 415 | 680 | 990 | 830 | 235 | 260 |
1"-14 | 435 | 715 | 1050 | 880 | 250 | 270 |
GENERAL TORQUE SPECIFICATION CHART FOR METRIC FASTENERS (in Newton Meters)*
BOLT DIAM\MATERIAL CLASS | 4.6 | 4.8 | 5.8 | 8.8 | 9.8 | 10.9 | 12.9 | |
MM | INCH | |||||||
5 | .197 | 3 | 4 | 5 | 7 | 8 | 11 | 12 |
6 | .236 | 5 | 6 | 8 | 12.5 | 14 | 17 | 20 |
6.3 | .248 | 5.5 | 8 | 9.5 | 14 | 16 | 21 | 24 |
8 | .315 | 12 | 16 | 20 | 30 | 34 | 44 | 50 |
10 | .394 | 23 | 32 | 40 | 60 | 70 | 85 | 100 |
12 | .472 | 40 | 56 | 70 | 103 | 120 | 150 | 180 |
14 | .551 | 65 | 90 | 110 | 167 | 190 | 240 | 280 |
16 | .630 | 100 | 140 | 170 | 270 | 290 | 380 | 440 |
18 | .709 | 137 | 177 | 225 | 350 | - | 48 | 580 |
20 | .787 | 200 | - | 330 | 520 | - | 740 | 860 |
* These torque values are approximate and should not be accepted as accurate limits. In determinant factors (surface finish, type of plating and lubrication in specific applications preclude the publication of accurate values for universal use. Manufacturers of various types of equipment usually provide specific tightening instructions which should be followed. DO NOT USE the above values for gasketed joints or joints of soft materials. DO NOT USE your torque wrench for values greater than its maximum scale reading.
When attaching an adaptor, the torque applied by the extension to the fastener is always more than the torque setting on the wrench. Follow the formulas below to correct torque settings.
A - Torque applied by extension to the fastener.
R - Torque Set on the wrench.
L - Lever length (from center of handle to center of ratchet head drive).
E - Extension length (from center Ratchet head drive to center of socket or fastener).
Example:
If you desire 50 ft.lbs at the end of the adaptor (A) then the torque setting on the wrench (R) is calculated as follows:
Where:
L = 16 inches
E = 2 inches
R = 50 ( 16 / ( 16 + 2))
R = 50 ( 16 / 18 )
R = 50 X 0.8888
R = 44.44 ft. Ibs
Torque set on the wrench is 44.44 ft-lbs
(the formula above is applicable for in-line adapter only)
Any length of extension can be used. When the adaptor is attached perpendicular to the axis of the wrench the torque setting on the wrench is equal to the torque on the fastener.
NOTE:
Performance Tool
PO Box 88259, Tukwila, WA 98138
Here you can download full pdf version of manual, it may contain additional safety instructions, warranty information, FCC rules, etc.
Advertisement
Need help?
Do you have a question about the M199 and is the answer not in the manual?
Questions and answers