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42 Revision 2 GM550 v1043 FCC-IC.doc

Boom Length:150.0 + -

change value

Jib Length: 50.0 + -

change value

Jib Offset: 10.0 + -

change value

Radius Calculation

Before proceeding with radius calibration:

Install the display unit (see Installation – Display GS550).

Install the angle sensor (see Installation – Angle Sensors for the Boom or Jib) and verify the

accuracy of its reading.

Telescopic boom cranes: install the length sensor (see Installation – Length Sensor Cable Reel).

Make sure the length is displayed properly for retracted and extended boom.

Lattice boom cranes, GS550 not programmed with rated capacity charts: the boom length must be

entered manually in the display. This value must be adjusted

every time the length of the lattice boom is changed. To access

this page in the main operating pages, press on the Hoist

button several times and one of the first 3 or 4 pages should

offer to adjust the boom length. Note: the boom length adjustment screen will not be visible if the

system is setup with a cable reel system because the cable reel will provide boom length

automatically. The page will not be visible if the system has charts in it because the rigging menu

will offer the available boom length (see System Operation –

Crane Rigging)

Enter the jib length if the working hoist is rigged to a jib. This

value must be adjusted every time the length of the jib is

changed.

Enter the jib-offset angle if the working hoist is rigged to a jib. This value must be adjusted every

time the angle of the jib is changed. Note: for accurate radius

display when working with a luffing jib, an angle sensor must be

installed on the luffing jib.

Radius Settings

The boom length (lattice cranes only), jib length and jib offset angle must be correctly entered in

the GS550 for accurate radius display. Furthermore, upon installation the GS550 must be

calibrated for several crane specific angle and length parameters. Default values may have been

programmed at the factory before shipping. Upon installation these parameters must be confirmed

and accurate radius display verified.

In most chart systems, the radius settings have already been pre-adjusted and radius should only

need verification. If capacity chart did not include both, angle & radius, then the chart entry person

may not have been able to adjust radius settings variables.

Step 1) To enter the radius settings screens, enter in the menu sections 4C. (Press menu, then

use the Next button to installation, page 4, then press Enter(menu), use Next to reach page #3,

press Enter again to enter. )

1) Parts of line 2) Crane Rigging 3) Display Settings 4) Installation

Press Menu Button

Back / Next

4A) Sensor List 4B) Sensor Calibr.

)

Radius Settin

Press Enter