stellar labs 12628, Owner'S Manual

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12 12628 Owner’s Manual
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%
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 firm,
level footing.
3. Operate the crane under partial load to assure
operator proficiency and proper machine
function.
4. Put the radio into Stability Test Mode:
A. Push the bottom four switches up and hold until
all lights come on (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
five 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 avail-
able.
Test Procedure
1. Rotate the crane into Zone 1 position.
2. With the crane fully retracted and the boom
horizontal, winch the test weight off the ground.
Note: Keep weight within six inches of the ground
at all times.
3. 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.)
4. 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.
5. 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.
Stable horizontal reach divided by Maximum
horizontal reach multiplied by 100 equals the
percentage of rated capacity for this zone. Use
the following formula to determine the
percentage of rated capacity:
6. Record this number in the data box for Zone 1.
This is the revised capacity due to stability for this
zone.
7. Repeat this procedure for each zone until the
worksheet is completed.
8. This is the revised capacity based on stability of
this package.
12628 Stability Data
Max Horizontal Reach: 342” (From the center of
rotation to boom tip)
Boost Stability Test Weight: 3240 lbs.
Non-Boost Stability Test Weight: 2745 lbs.
Stability Procedure