Hardi ALPHA EVO EcoDrive 5100 Instruction Book page 175

4. If the 2nd section is too high, unfold the boom again, without
disturbing the hor izontal setting of either ar m, adjust the two eye
bolts A and B to move the 1st arm away from the 2nd arm.
If the 2nd arm is too low, it is necessar y to approach the 2nd arm
5. When the 2nd ar m is correctly in its bracke t, you can tighten the
counter nuts of e ye bolts
÷
For tightening, we recommend to use an extension bar to the
end of the spanner to ensure the nuts are fully tightened.
μ
IMPORTANT
Stop (D) should be touching the other section
There should be at 2 mm gap between stop (C) and the
aluminium part
6. Re -attach the rod eye of cylinder to the hinge, and firmly tighten the nut
7. Close the distance «L» as much as possible between the sockets on the eye bolt. Fully extend the cylinde r hydr aucally
and then increase the distance «L» until the lower stop (D) is touching the other section
÷
when the stop (D) touching the other section, the stop (C) must be at 2 mm from the aluminium part
8. Continue increasing the distance «L» until the stop (C ) comes into contact with the other section
9. Loosen the eye bolt again until you see the cylinder rod buckle slightly (This buckling corresponds to approximate ly 2
to 3 mm of additional stroke of the cylinder rod).
μ
ATTENTION
During this step, make sure that the cylinder is fully extended and that it does not retract whe n loosen the double
ball joint.
10. The force of the cylinder can cause the boom slightly out of alignment - Check again whether the boom is still properly
aligned
Repeat step 6 if you need to adjust the stops (C) and (D).
L
Serrer FORTEMENT
Tighten strongly
Laisser 2 mm de jeu
Clearance= 2mm
6 - Maintenance
175