stellar labs 10620 - Decal Kit

18
STABILITY PROCEDURE
Definition of STABILITY for the Stellar Telescopic Crane Products:
A truck is stable until the load cannot be lifted off 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 final 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% of tipping.
Set Up
-Locate the truck on a test course in position for loading and engage travel
brakes.
-Set outriggers so that they make contact with firm, level footings.
-Operate the crane under partial load to assure operator proficiency and proper
machine function
.
Test Data for 10620 Crane
- Maximum Horizontal Reach – 249 inches (center of rotation to boom tip)
- Stability Test Weight – 3125#
Test Procedure
-Rotate the crane into zone 1 position.
-With the crane fully retracted and the boom horizontal, winch the test weight
off the ground. Note: keep the weight within six inches of the ground at all
times.
-Extend the boom outward until full extension has been reached or until the
truck becomes unstable (again, use the winch to keep the weight within six
inches of the ground).
-If the boom goes full extension without becoming unstable, the crane is termed
stable for this zone and 100% can be written in the zone 1 data box.
-If the truck becomes unstable prior to going full extension - retract the boom
until the truck becomes stable and measure the horizontal reach in this position
(center of rotation to boom tip). This is the stable horizontal reach
for this
zone. Use the following formula to determine the percentage of rated capacity.
Stable horizontal reach
divided by Maximum horizontal reach multiplied by 100
equals the percentage of rated capacity for this zone. Record this number in the
data box for zone 1. This is the revised capacity due to stability for this zone.
-Repeat this procedure for each zone until the worksheet is completed.
-This is the revised CAPACITY based on STABILITY of this package.