Adjustment-continued

TM 5-4210-233-14&P-1

4-205. AERIAL LADDER TENSION CABLES - Continued

(4) Correct tension on extension and retractioncables is checked by placing the ladder at 0 degrees

elevation, extending the ladder approximately two feet (610 mm), and then retracting ladder

approximately one foot (305 mm). Upon inspection of the cables, all cables should be self-

supporting with no portion of the cables coming in contact with any part of the ladder. Should

cables come in contact with the ladder or sag unevenly, tighten cables appropriately. Front

extension cables should be tightened first unless the ladder sections are not retracting far

enough. In this case the rear retraction cables should be tightened first. This will pull the ladder

sections inward, while tightening the front extension cables will draw the sections outward. Care

must be taken to maintain the required 1/4" to 3/4" (6.35 to 19 mm) gap between the water pipe

mounting brackets and the front crossmembers of the sections below.

(5) Once the base section and the lower mid section are aligned properly, the upper mid section

should be checked for proper alignment in relation to the lower mid section and adjustments

made to front cables of the lower mid section in the same manner as was done on the base

section. (6)

Once the lower and upper mid sections are aligned properly, alignment of the

fly and upper mid sections should be checked in the same manner as the other sections.

(7) After all adjustments are completed on the extension and retraction cables, the electrical cables

should be adjusted.

4-515