product manual 03.
General This test method determines the particle size distribution of fine and coarse aggregates by sieving. Refer to ASTM C136. The sieve shaker consists basically of a cradle for holding the sieves, a power unit and a base. The cradle consists of a platform fastened to the lower ends of two vertical support rods. The upper ends of which are shock mounted to a horizontal support that are free to pivot about its mounting.
and plastic sleeve should be in the middle of the vertical slot (in lower part of the cradle). If it is not, loosen the top clamp knobs and the hex nuts which position the bottom cradle on the threaded rods, then adjust them upward lifting the stack until the shoulder bolt with plastic sleeve is centered. Retighten the fasteners (hex nuts and knobs). When operating correctly, the movement upward and downward of the rod springs should be approximately equal.
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. The purchaser is responsible for the transportation charges. Humboldt Mfg. Co.
