T012202E
3rd / Top Boom Sections
Emergency Telescoping Procedure
While pressing the 3rd / top boom emergency telescoping switch, operate the boom telescoping control lever. The 3rd and top boom sections will extend or retract regardless of the status of the 2nd boom section.
WARNING When the boom is extended or retracted using the emergency telescoping procedure, it is no longer in a normal operating condition. The strength of a boom extended to any length by this method will be considerably less than when extended normally to the same length. When the emergency telescoping procedure must be used, remove the load from the hook. Never hoist any load until the boom has been returned to its normal operating condition. Emergency telescoping switches work only when the override switch stays ON. This method of telescoping the boom should be used to stow the boom when the boom cannot be extended or retracted for some reason, such as a malfunctioning boom length sensor. Use this procedure also when you need to extend or retract a boom section in a sequence other than the normal sequence, for inspection or maintenance purposes. The controls used in the emergency telescoping procedure are the boom telescoping control lever, 2nd boom emergency telescoping switch, and 3rd / top boom emergency telescoping switch.
3rd/top boom emergency telescoping switch 2nd boom emergency telescoping switch
3rd, Top
2nd
EMERGENCY TELESCOPING T02957
T02957 2nd Boom Section While pressing the 2nd boom emergency telescoping switch, operate the boom telescoping control lever. The 2nd boom section will extend or retract regardless of the status of the 3rd and top boom sections.
Telescoping the Boom
98
Telescoping the Boom
