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IV-2
4 .2 A d justm e nt o f te le sc o p ic
ma st a lignme nt a nd pla y.
Adjustment of the transversal play between
the mast sections must be performed by
trained and qualified personnel.
1- Clean the inside walls of the mast sections to
remove the old grease.
2- Loosen the locknuts on the roller pins.
3- Reduce the transversal play by tightening the
roller pins in succession.
!
CAUTION
Do not suppress the play completely : for the
mechanism to work, a minimum play is
necessary.
4- Use a plumb line to ensure the vertical
alignment of the mast sections is kept :
Plumb
Plumb
line
line
INCORRECT
5- Tighten the roller pin locknuts.
Torque value : 1000 N.m approximately.
!
CAUTION
If during adjustment one of the mast sections
jams, stop the lowering movement and raise
the mast to retension the chains. Loosen
slightly the roller pins of the jammed mast.
6- Lubricate the mast sections that were cleaned
previously.
48
ADJUSTMENTS
DANGER
Plumb
line
CORRECT
Controls after adjustment :
- Fully raise and lower the telescopic mast three
times with a load of 200 Kg evenly distributed
in the platform.
- If no jamming occurs, fully raise and lower the
telescopic mast three times with one person
in the platform.
- If jamming occurs during lowering, loosen
slightly the roller pins of the jammed mast
section.
- Check the torque value of all roller pin locknuts.
Do not hesitate to contact your approved JLG
distributor for more information.
Toucan 861
IV-2
Models
Updated 04-06
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