CHAPTER 11: MAINTENANCE OF MAIN WINCH, HOIST
WINCH, AND RELATED COMPONENTS
11-12 SERVICE STAYLINE CYLINDER LIMIT VALVE ADJUSTMENT
THIS TASK COVERS
Tool kit, general mechanic's (Appendix C, item 53)
Air inlet grilles removed (see paragraph 9-57)
Do not operate hydraulic system when any hydraulic lines are disconnected.
Stayline cylinder limit valve adjustment should be accomplished with hoisting boom in stowed
position to prevent damage to equipment.
Loosen two screws (1) to adjust valve lever roller (2) on cam follower bracket (3).
During adjustment, valve lever roller (2) must ride squarely and freely on upper side of cam
follower bracket (3).
Left and right limit valve assemblies are adjusted in same manner.
If necessary, loosen jamnuts (4) and adjust screws (5) to position valve lever roller (2) so that valve lever is in
fully open position with stayline crank arms in fully stowed position.
Follow-on maintenance: Install air inlet grilles (see paragraph 9-57)