SET-UP AND INSTALLATION 31000 LUFFING JIB OPERATOR MANUAL
4-42 Published 07-23-15, Control # 078-03
43
Information below from drawing A19443, Sheet 19 and Sheet 21:
Close the bypass valve (B) on both main strut support stops (A):
NOTE: Screw out the bypass valve to open it. Screw in the bypass valve to close it.
Step Action
FIGURE 4-43
Item Description
A Main strut support stop.
B Bypass valve.
C Filling valve.
D Sequence valve.
A
D
B
C
Failure to close the bypass valve will make
the main strut support stop unable to support
the main strut and the jib backstay straps.
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