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Summary of Contents for Humboldt H-3220A
- Page 1 07.24 H-3220A Benkelman Beam...
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Page 3: Indicator Installation
General The H-3220A Benkelman Beam Apparatus is a convenient and accurate device used for measuring the deflection of flexible pavements under moving wheel loads. Operating on a simple lever arm principal, the device consists of a reference beam body, two-part probe beam, and rear zero adjustment assembly. The dial indicator is not included and must be purchased separately. -
Page 4: Operation
Adjust the stop screw (#34), turning it in a clockwise direction, so the indicator does not bottom out when it’s in the up position. This point is reached when the indicator reading does not move while the operator is turning the stop screw. 4. - Page 5 Calculations The H-3220A series Benkelman Beam has a level ratio of 2:1, the H-3221HA Digital indicator has been calibrated to read the true deflection of the beam probe point, eliminating the need for any conversions. (For those using dial indicators: Pavement Reading = Maximum Reading minus Final Read- ing.)
- Page 6 54 41 Fig. 1...
- Page 7 #10-32 x 1/2 Pan HD, Machine Screw #8-32 Keps Nut #10-32 x 1/2 Pan SOC. HD, Cap Screw Guide Rod Cover Thumb Screw Knob Guide Rod Leveling Block – Top 1/4-20 x 1/2 Hex HD. Screw #6-32 x 1/2 Binding HD, Machine Screw 1/4-20 Hex Cap Nut #6-32 Keps Nut 1/4"...
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Page 8: Construction Materials
Warranty Humboldt Mfg. Co. warrants its products to be free from defects in material or workmanship. The exclusive remedy for this warranty is Humboldt Mfg. Co., factory replacement of any part or parts of such product, for the warranty of this product please refer to Humboldt Mfg. Co. catalog on Terms and Conditions of Sale.
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