Haulotte HT23RTJ O, Maintenance Book

Page: 134 / 534

134 4001055250 E 10.21 USA / GB
Upper boom
Boom adjustment procedure
MS0015
2 - On the front of the machine :
• Tight the chain until having a length of 20 mm +/- 1 mm. (From the lock-
nut to the extremity of the screw, see the following picture).
• Tight the lock-nut.
• Check that the 6 lock washers are present in the position shown on the
diagram.
3 - Raise the boom :
• Extend and retract totally the telescope :
• Lower the boom.
• Extend the telescoping boom between 100 and 200 mm.
• Loosen the lock-nut on the basket side.
4 - On the basket side :
• Tight the chain for having a length of 20 mm + 0 - 1 mm between the last
washer and the plan of the boom (See the following picture). .
5 - Extend the telescopic boom to 1 meter approximately :
• Retract the telescope totally.
• Extend the telescope between 100 and 200 mm.
• Check that the length of 20 mm is OK.
6 - If it's not, repeat the operations of the paragraphs 4 and 5 until the stabilization of the length to 20 mm :
• Lock the lock-nut when the length of 20 mm is OK.