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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
WIRE ROPE TYPE CABLE DIAMETER (INCHES) 1
1/16 3/32 1/8 5/32 3/16 7/32 1/4 9/32 5/16 3/8
PROOF LOAD (POUNDS)
BMS 7-265 OR 7 x 7 288 552 --- --- --- --- --- --- --- ---
MIL-W-83420 +25 +25
COMP. "A" -0 0
(CARBON STEEL)
7 x 19 --- 600 1200 1680 2520 3360 4200 4800 5880 8640
+25 +60 +85 +125 +170 +210 +240 +295 +435
-0 -0 -0 -0 -0 -0 -0 -0 -0
BMS 7-265 OR 7 x 7 288 552 --- --- --- --- --- --- --- ---
MIL-W-83420 +25 +25
COMP. "B" -0 -0
(CRES)
7 x 19 --- 552 1056 1440 2220 3000 3840 4680 5400 7200
+25 +50 +70 +110 +150 +190 +230 +270 +360
-0 -0 -0 -0 -0 -0 -0 -0 -0
PROOF LOADS FOR CABLE ASSEMBLIES
MATERIAL:
CABLE - CARBON STEEL PER BMS 7-265, TYPE I, COMPOSITION A (TZ) (PREFERRED)
-
CARBON STEEL PER BMS 7-265, TYPE I, COMPOSITION A (FIRST OPTION)
-
CARBON STEEL PER MIL-W-83420, TYPE I, COMPOSITION A (SECOND OPTION)
-
CARBON STEEL PER MIL-W-1511 (THIRD OPTION)
INTERCHANGABILITY INFORMATION:
YOU SHOULD REPLACE CABLES FOR BOTH SIDES OF A SYSTEM IF ONE OR BOTH SIDES HAS A BAD CABLE. USE CABLES OF THE SAME TYPE FOR BOTH SIDES. THIS WILL PREVENT UNEVEN CABLE STRETCH THAT CAN CAUSE PROBLEMS WITH THE RIGGING OF THE SYSTEM.
1 PROOF-LOADING OF NYLON JACKETED CABLE SHALL BE BASED UPON THE DIAMETER OF THE WIRE ROPE ONLY. DO NOT INCLUDE THE JACKET AS PART OF THE DIAMETER
Control Cable Installation
Figure 401
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
(e)
Rub the full length of the cable with a dry, lintfree cloth.
(f)
Apply a light thin layer of BMS 3-24 grease to carbon steel cables, then wipe the cable with a clean rag to leave a thin film of grease between the wires on the cable. Do not grease cres cables, it may be only cleaned with clean rag.
(g)
Make marks on the positions of the fittings not installed on the cable before installation.
(h)
Put a wrapping on the used cable to keep it together.
(i)
Cut off the cable-end fitting of the used cable.
(j)
Make a splice to attach the used cable to the new cable.
NOTE: Make the splice of minimum diameter and sufficiently
____ strong not to break when pulled through. Make a splice only on the center strands of the cable and put tape on the loose outer strands.
(k)
Make sure the new cable is attached to the used cable.
(l)
Pull the used cable out while you keep light tension on the new cable.
(m)
Install the remaining fittings and apply a proof load to the fittings as shown (Fig. 401).
NOTE:____You must apply the full proof load gradually. You must apply the full proof load in more than three seconds. You must hold the full proof load for at least five seconds.
(n)
Finish installation according to procedures given in Section (3).
S 354-007
(3) Finish Installation (general)
(a) If it is necessary, clean the control cable.
NOTE: Clean the full length of the cable through the
____ fairleads, air seals, pulleys, quadrants, and drums. Use a dry, lintfree cloth.
(b)
Apply a light thin layer of BMS 3-24 grease to carbon steel cables, then wipe the cable with a clean rag to leave a thin film of grease between the wires on the cable. Do not grease cres cables, it may be only cleaned with clean rag.
(c)
Install the turnbuckles, with the turnbuckle barrel installed an equal distance on the two terminals.
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