Elliott E190, Operation And Maintenance Manual

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Five Section Boom Operation-aerial EEC-0080 V1.3
Five Section Boom Operation
I. Torque the 1/2/3 extend cables to 7 ft-lb (9.5 N.m) each. These cables are located at
the top of the 1
st
section boom winch bar.
J. Check to ensure that boom sections are all bottoming out simultaneously as in Step
2. If not, proceed as follows:
1. If the second section is bottoming out first, equally loosen the 1/2/3 extend cables
and tighten the 3/2/1 retract cables. This will cause the second section boom to
bottom out later but will also cause the 3
rd
, 4
th
and 5
th
sections to bottom out
sooner.
2. If the 3
rd
section is bottoming out first, equally loosen the 3/2/1 retract cables and
tighten the 1/2/3 extend cables. This will cause the 3
rd
, 4
th
and 5
th
sections to
bottom later and the 2
nd
section boom to bottom sooner.
3. If the 4
th
section is bottoming out first, equally loosen the 4/3/2 retract cables and
tighten 2/3/4 extend cables. This will cause the 4
th
and 5
th
sections to bottom out
later and the 2
nd
and 3
rd
sections to bottom out sooner.
4. If the 5
th
section is bottoming out first, equally loosen the 5/4/3 retract cables and
tighten the 3/4/5 extend cables. This will cause the 5
th
section to bottom out later
and the 2
nd
, 3
rd
and 4
th
sections to bottom out sooner.
K. Cycle the boom a few feet out and in. Check to ensure that all sections are
bottoming out simultaneously. Repeat step J as required .
L. Repeat Steps 4 through 9. Torque the 5/4/3 retract cables to 12 ft-lb (16.26 N.m).
Torque the 3/4/5 extend cables to 30 ft-lb (40 N.m). Torque the 4/3/2 retract cables
to 14 ft-lb ( 19 N.m). Torque the 2/3/4 extend cables to 45 ft-lb (61 N.m). Torque the
3/2/1 retract cables to 18 ft-lb (24 N.m) Torque the 1/2/3 extend cables to 14 ft-lb (19
N.m).
M. Cycle boom fully, check that all cables are torqued properly and that all sections are
bottoming out simultaneously. Repeat Step J as required then add locknuts to all
cables. Each threaded cable end must have two nuts locked together.