stellar labs 5521 - Stability Testing Procedure; Stability Test Setup and Preparation

Stellar
®
5521 Telescopic Crane Owner’s Manual | Page 19
Denition of Stability for the Stellar Telescopic Crane Products:
A truck is stable until the load cannot be lifted o󰀨 the ground with the winch, without tipping over the
truck. Every Stellar crane installed must be tested for stability to determine the actual load capacity
of the nal truck package. The actual test data must be recorded and supplied with the truck at the
time of in-service and should be kept with the truck at all times. The following procedure will test
the truck package for stability and will provide a stability capacity chart. The load limit information
shown on the stability capacity chart is formulated on 85% tipping.
Set Up:
1. Locate the truck on a test course in position for loading and engage travel brakes.
2. Set stabilizers so that they make contact with rm, level footing.
3. Operate the crane under partial load to assure operator prociency and proper machine function.
4. Put the radio into Stability Test Mode:
A. Push the middle four switches up and hold until “STB” appears on the screen
(approximately 5 seconds.)
B. At this point,the crane will have enough capacity to handle the weight for the stability test.
C. The radio will timeout of stability mode after 30 minutes or when the E-Stop button is
pushed.
Note: The radio can only be put into stability mode ve times. After that, the radio would have to be
returned to Stellar to be reprogrammed to allow additional stability testing. All other radio functions
will work properly even if stability mode is not available.
Stability Procedure