Downhill Pumping, Vertical Pumping | Multiquip LS600P specification

general information

Downhill Pumping

Downhill pumping can be a difficult procedure on some jobs.The slurry procedure would be the same as explained Priming The Pump With Slurry Mixture section of this manual. It is suggested that a sponge approximately 2”x 4”x 6” in size be placed in the hose before the start of pumping.

Wet the sponge before placing it in the hose to keep the slurry from running too far ahead of the concrete, which will reduce the possibility of separation. When the pump is stopped, the material can flow slowly down, due to gravity, and cause the hose to collapse.

When pumping is resumed, you can expect blockage at the point of hose collapse. To prevent this from happening, the hose can be “kinked off” at the discharge end when the pump is stopped to prevent the gravity flow of the material in the hose.

The use of stiffer mixes when pumping downhill will decrease gravity flow of the material in the hose and will assure a smoother operation between the cam roller bearing and cam plate. As with any job, make sure that the hose and the couplings are in good workable shape.

Vertical Pumping

When pumping vertically up the side of a building, above 40 feet, we would recommend the installation of steel pipe securely fastened at intervals as necessary to support the pipe. Ninety degree, long radius pipe sweeps should be installed at the top and bottom of the steel line.

Use a 25 ft. hose, or short section, off the pump; and for the balance of the horizontal distance to the vertical line, use steel pipe.This type of installation has been satisfactory on many jobs being pumped in excess of 100 feet high. Line pressures are always less using steel pipe as compared to hose.

When pumping vertically, using all hose, it is recommended not to go higher than 50 feet with hose.The hose should be tied off at intervals of 10 feet, if possible. Special attention should be given when tieing the hose off at the top as the hose will have a tendency to stretch when filled with concrete. This will increase the possibility of a blockage at the point where the hose is tied off. To avoid this, a long radius of 90° elbow is recommended.The suggested place to tie off is on the hose, under the clamp.

NOTICE

It is strongly recommended that steel pipe be used on all vertical pumping for safety and convenience.

Hose Pulsation

A slight pulsation of the hose will always be noticeable near the pump. Excessive pulsation of the hose near the pump is normally due to higher than average line pressures caused by stiff, harsh mixes, or extremely long pumping distances.

The use of 2 -1/2” I.D. hose in these extreme cases reduces line pressures or the addition of slight amounts of water to the mix, if permissible, will permit easier pumping. The use of certain pumping admixtures may help.

If excessive pulsation exists in the hose, it is advisable to use burlap or some means of wear protection under the hose at points where the hose may wear through the outer cover; e.g. over forms, steel or sharp curbs.

Snap-Joint Couplings

When using Snap-Joint couplings with gaskets to join hose, see that they are washed clean after each job. Keeping the hose ends clean (heavy duty) is very important for the best job setup. A thin coat of grease on the rubber gasket or dipping both coupling and gasket in water before coupling the hose will make for easier installation.

MAYCO LS600P CONCRETE PUMP • operation manual — rev. #0 (05/13/13) — page 17

LS600P specifications

The Multiquip LS600P is an innovative solution in the realm of construction machinery, designed to meet the demanding needs of modern job sites. This versatile piece of equipment is particularly noteworthy for its performance capabilities, fuel efficiency, and user-friendly design, making it an essential addition for contractors seeking reliability and efficiency.

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In conclusion, the Multiquip LS600P is a high-performance, efficient, and versatile machine. With features focused on user comfort, operational efficiency, and adaptability for various tasks, it stands out as a reliable choice for contractors aiming to enhance productivity and project outcomes on their construction sites.