(c)
Use an ohmmeter to make sure the resistance is less than 10 megohms.
S 432-058
(3) Connect the strap to an applicable electrostatic ground jack.
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A 737-300/400/500MAINTENANCE MANUAL
(4) S 432-032Remove all of the conductive dust caps and the connector covers from the unit to be installed.
NOTE:____ Make sure you do not touch the electrical pins.
(5) S 402-042Install the ESDS unit with the applicable Removal/Installation procedure.
(6) S 022-060Remove the strap.
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A
737-300/400/500MAINTENANCE MANUAL
STANDARD TORQUE VALUES - MAINTENANCE PRACTICES
______________________________________________
TASK 20-50-11-912-002
1. General_______
A. General
(1) Refer to the Figures that Follow for the Torque Data.
(a)
The torque values shown in Fig. 202 give data for the correct quantity of pressure necessary to tighten fasteners. Some fasteners have threads that are lubricated. Some fasteners have threads that are not lubricated. The values which are necessary to tighten the fastener by the nut or by the bolt are also supplied.
(b)
If it is necessary to use an adapter, a corrected torque wrench value is necessary. Follow the examples in Fig. 201 to find the corrected torque wrench value T1 when you use an adapter.
(c)
The minimum torque necessary to turn the self-lock mechanism of the nuts and the nutplates must be the value shown in Fig. 203. If the nut turns too easily or turns too hard when you install the nut on the bolt, refer to Fig. 203 to do a test of the nut.
(d)
Torque values for Reduced Head Bolts are given on Fig. 204.
(e)
Torque values for Rigid Tube Coupling Connectors are on Fig. 205.
(f)
Torque values are given in Fig. 206 for Pipe Thread Fittings.
(g)
Torque values are given in Fig. 207 for Low Pressure and Return Line Fittings.
(h)
Torque values are given in Fig. 208 for High Pressure Line Flareless Fittings with lubricated threads.
(i)
Torque values are given in Fig. 209 for V-Band Clamps, Channel Band Clamps, Duct Support Clamps, and Hose Clamps.
(j)
The following special tool is used for torque requirement for wing panels and pylon fairing. 1) HERBIE Part No: VST 15-50 Torque Control Tool VOI-SHAN
8463 Hiquera Street, Culver City, CA 90230 USA Phone (213) 838-2131
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A 737-300/400/500MAINTENANCE MANUAL
TA
1T = A+B
A = TORQUE LENGTH OF TORQUE WRENCH B = TORQUE LENGTH OF ADAPTER T = ACTUAL TORQUE OF NUTT = INDICATED TORQUE OF WRENCH
1
(CORRECTED TORQUE)
EXAMPLE A = 12 IN. B = 3 IN. T = 160 POUND-INCHES
160 x 12T =
1
12+3
T = 128 POUND-INCHES
1
Torque Wrench Adapter
Figure 201 (Sheet 1)
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