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PANEL A INSTR 0876576 - Caterpillar



0876576 PANEL A INSTR Caterpillar parts PANEL
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Alternative (cross code) number:
CA0876576
087-6576
0876576
Caterpillar 0876576 PANEL A INSTR

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Fire hazard
Electrical Shock - Hazard
Fire hazard General Information Section
Introduction
The 456-4449 Support Device is used to support different components during remove and install procedures.The support device is designed to be used in a simple supported beam setup.
Illustration 3 g03693402
The working load limit of the support device is 272.15 kg (600 lb). This is calculated in the worst case scenario, which is a load in the center and the supports are at the extreme edges of the beam. It is required that the load of the supporting device is located at the center of the beam. Use a lifting strap or shackle to achieve this result. Double check your location using a tape measure. Measure from both ends to ensure a center load. If the load is unbalanced, the calculations below are not for your loading condition. Engineering Specifications of the 456-4449 Support Beam
Key engineering values are calculated as follows for a 456-4449 square tube:
Illustration 4 g03694027
Engineering Values for the 456-4449 Support Device
Illustration 5 g03694209
Engineering Calculations at Worst Case
Illustration 6 g03694221
Here we display a specific beam loading case. Note that the maximum stress quoted is a positive number, and corresponds to the largest stress magnitude in the beam. It does not distinguish between tension or compression (this distinction depends on which side of the beam's neutral plane your c input corresponds).
Table 1
Input     Variable     Value     Units    
Length of Beam     L     6     ft    
Load on Beam     P     600     lbf    
Young's Modulus     E     29000000     psi    
Moment of Inertia     I     0.91146     inch ^4    
Section Modulus     Z     0.91146     inch ^3    
Ultimate Tensile Strength     --     72809     psi    
Yield Strength     --     54390     psi    Displacement Calculations
Illustration 7 g03694261
Slope Calculations
Illustration 8 g03694356
Moment and Max Bending Stress
Illustration 9 g03694357
The key take away here is that the maximum stress at 272.15 kg (600 lb) of load is 81358.16 kPa (11800 psi) which is well below the yield strength for the selected steel. This tool has a safety factor of 4.6 to ensure a safe working tool. There is an additional safety factor built into the tool because your loading condition will not actually be at the extreme limits of the tube. You will be somewhere inside the extreme edges of the support beam, which will ultimately reduce the amount of stress on the beam.Inspection and Maintenance
Do not use if tube is bent.Tool Disposal
At the end of the operational life of the tool, destroy the tool and dispose of as scrap.Additional Contact Information
For additional product support questions concerning this tool, contact the Dealer Service Tools Hotline at:USA: 800-542-8665, Option 1International: 1-309-578-7372


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