User's Manual

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40 LS420 Universal User Manual V2.91 2003-01-21.doc

6.5 The Display Unit Is Always In Alarm Mode, the Load warning light

is on

If "Hoist" button green light is on press the "Hoist" button until it goes off.

Press the "Parts" button to verify that the parts of lines is consistent with actual

cable configuration. Refer to the "Parts" button section in the user manual.

If the "Tare" button light is on, press the "Tare" button once to disable the tare function

Press either the "Limit +" or the "Limit -" button to see the limit programmed for the hoist.Verify that

the limit programmed is consistent with the crane capacity in its present configuration.

Remove weight

from load cell.

The display is

always in alarm

mode: the "

Load

warning light

is on.

If there is an auxilliary load cell press the "Hoist" button until the "Hoist" button light is on. Repeat

the previous three steps to verify the parts of lines, tare and laod limit for the auxilliary hoist.

Does the

load displayed now

correspond with the

weight on the

load cell?

Yes

Is the

overload alarm

still on?

Please call your

service representative

Yes

Everything seems to be

functioning normally.

Verify

communication

between load cell and

display unit (follow

procedure on page x)

then return here.

Verify overload

alarm function.

Does

the overload

alarm now function

properly?

Yes

Press "Test" to verify

loadcell batteries.

Verify battery installation. Please pay special

attention to avoid infiltration of water or dirt and to

ensure that the load cell wires are properly connected

and not severed. Change the batteries if necessary.

Verify proper load

cell function.