Overload Warning System - jcb JS300 Service Manual

Check (Operation)
Test the overload warning system as follows:
– Switch on the overload warning system. Refer to
Section 2, Operation, Working With the Excavator
Arm.
– Make sure that the machine instrumentation activates
the applicable overload warning system active
indicators. Refer to Section 2, Operation, Lifting
and Loading, Overload Warning System.
– Attach suitable test load with suitable lifting
equipment. Lift the load 25 -50 mm off the ground.
Refer to Section 2, Operation, Working With the
Excavator Arm.
– Make sure that the overload system warning
indicators operate correctly. Refer to Section 2,
Operation, Lifting
Warning System.
– Lower the test load and make sure that the overload
warning system indicators re-set correctly.
If the overload warning system does not operate correctly
carry out the necessary procedures to repair it.
Important: DO NOT operate the machine if the overload
warning system is defective.
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Overload Warning System

and Loading, Overload
Routine Maintenance Procedures
9813/5100-1
Section C - Electrics
Overload Warning System
C-229