LS600 PUMP — MAINTENANCE (PUMP) | ||||||
WEAR PLATE AND CUTTING RING | It is important that the wear components be inspected | |||||
Due to the abrasive nature of concrete, it is normal for the | weekly for proper sealing. Failure to inspect will | |||||
eventually cause severe damage to the | ||||||
cutting ring to wear on its sides as it shears through the | ||||||
material cylinders. Visually inspect wear plate and | ||||||
concrete inside the hopper. The | ||||||
cutting ring to ensure surfaces are sealed against each | ||||||
the abrasiveness of the concrete will cause extreme wear | ||||||
other. If a deep groove or a wide space has developed | ||||||
and reduce sealing capability between the cutting ring and | ||||||
on the sealing surfaces, it is time for replacement. | ||||||
wear plate. If the two components do not properly seat | ||||||
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against each other, slurry will pump into the hopper rather | Due to the motion of the Shuttle tube, the cutting ring | |||||
than out the discharge line. See Figure A. This condition | experiences a quicker rate of wear as opposed to the wear | |||||
can easily be observed: | plate.The wear ring typically requires replacement two times | |||||
1. The sudden change of the level of concrete inside the | per wear plate (2 to 1). When replacing the wear ring, also | |||||
replace the rubber energizer ring. | ||||||
hopper during each pumping stroke | ||||||
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2. Concrete slurry squirting into the air from the hopper |
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(Volcano effect) | 58%%(5 |
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3. When the output volume at the end of the delivery line | (1(5*,=(5 | |||||
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decreases in pressure |
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4. Unusual frequent material packs in the Shuttle tube |
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6+877/(78%( |
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,16,'(+233(5 |
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*22'6($//($.,1*
Figure A. Wear Plate and Cutting Ring
PAGE 40 — MAYCO LS600 PUMP — OPERATION AND PARTS MANUAL — REV. #4 (9/15/11)
