Concrete pumps are tools used to convey liquid concrete from the source of concrete to the place of casting. The basic principle, the types, and selection Concrete pumps are tools used to convey liquid concrete from the source of concrete to the place of casting. The basic principle, the types, and selection of concrete pumps based on work are explained briefly in this article.
Solution: Clean or replace the valve block, lift the legs, keep the cement pump truck level, replace the brake disc, and replace the brake spring. Failure example C. The boom cannot be locked under load. Reasons and solutions. 1. The locking valve block is not adjusted, the valve block is dirty or damaged. 2. Leakage in the hydraulic cylinder. 3.
This can be done by tapping the hammer along the pipeline. Where concrete is jammed, the hammer will produce a dull thud as opposed to a more ringing sound where the line is clear. All pipe joints should also be inspected for grout leakage as well, as this can be indicative of grout loss and subsequent blockage.
· SHIFT CIRCUIT PRESSURE TOO LOW – (a) check engine RPM (b) check system pressure – relief to be typically set at 2000 PSI (consult your manual) (c) check gear pump – replace if faulty. The swing circuit has an internal leakage problem where the stored pressure in accumulator has dropped significantly and is at the low end of pressure
Evaluation Concrete Pump .mevas.eu Date: 10.10.2014 vers 03/12 Brand/type Mercedes Actros chassis No.: WDB9523041K545152 km reading 248 933 Inspector: B.Hecker Year: 2001 retarder air condition water tank cab cab doors LHS bent, retainer missing seat cushion LHS damaged windows Good switches some are missing wipers Good gauges Good floor mats Good aircon / heat heater OK, …
Dec 17, 2019 · The concrete boom pump truck set driving, pumping, distribution in one of the efficient concrete conveying equipment. The concrete pump truck integrates high reliability, high economy, high safety and high durability, with reasonable matching of chassis, power, electric control, hydraulic and pumping systems. and check for leaks and whether
• Test does not determine actual leakage on line • This test does not check the barrel of the pipe ASTM C 1214 Standard Test Method for Concrete Pipe Sewer lines by Nega-tive Air Pressure (Vacuum) Test Method Summary: Pipe is plugged and air is removed to create -3.5 psig. Leakage is
Jul 31, 2009 · The concrete pump operator should never be operating the controls for the pump and also performing the task of the line hand at the same time. • The operator should arrange for an alternative competent person to attend to the pump if he is required to work away from the pump. He should have a clear view of both the line hand and the hopper.
Concrete Pump Blockage - Causes & Clearing - The Concrete
Jun 04, 2013 · Of all the equipment that has changed concrete construction over the past 40 years, the concrete boom pump is number one for increasing productivity and reducing labor. A concrete pump is a very large and powerful piece of equipment that can provide great benefits on a concrete project but it can also be dangerous without proper set-up and safety procedures.
CONCRETE BOOM PUMP TRUCK PRE-ACCEPTANCE CHECKLIST. 0. 0. 0. Revision No: 1. Document Number: JH-FRM-PAE-001-28. Page 2 of 2. When printed this document is an uncontrolled version and must be checked against the IMS electronic version for validity
3、Check if the cooling system of the pump truck is working properly. 4、Check for hydraulic leaks in the hydraulic lines. 5、mixing system and transfer case are prone to hydraulic oil leakage,Generally, the water enters the hydraulic oil of the mixing system and part of the …
Nov 01, 2018 · 10) Check abrasion of concrete pipeline by knocking and check if joints of all pipelines are sealed properly. 11) Check if there is oil leakage or oil impregnate for hydraulic system. How to maintain concrete pump after 50 operation hours (1500~2500m 3 )
6. Bleed air and check for leaks. Check to see that oil intake is well below surface of oil in reservoir. Check pump packing and line connections on intake side by pouring hydraulic oil over suspected leak. If noise stops, the leak has been located. Tighten joints or change packing or gaskets where necessary.
Concrete Pump Blockage - Causes & Clearing - The Concrete
Sep 29, 2017 · hydraulic concrete pump. 1. To check whether the hydraulic line is leaking oil. If there is oil leaking, you need to tighten the parts. But it tightening doesn't work, you had better change related components instead. For trailer concrete pump, it is more important to check …
In concrete pumping, the pouring of concrete is done using a pump so discharge or quantity of concrete produced is more which may lead to faster progress in construction work. In the ordinary placing method, concrete is transporting by labors using pan or buckets which cause delays or consuming more time in concrete.
The concrete placing equipment operator should remain in control of the equipment at all times to ensure appropriate action can be taken when a risk arises, eg: promptly stopping the pump in the event of blockage or leakage. The line hand and line pump operator should not be the same person. A line hand may not be required if the discharge hose
Check the pretension on the cutting ring (if it's a Putzmeister concrete pump). Check the switch-over cylinders. Inspect for leaks on the boom and cracks on all the hydraulic hoses. ON THE TRUCK: Check the belt tensioner on the belts, break pods, and air lines. Do a leak down test on the brakes by getting the truck at 100 PSI the shut it off and keep pressing the gauge until the switch pops out. This will ensure the brakes will engage at low pressures. Check …
turbocharger or other components on the pump. Check that all on-board systems like oil and air pressures are reading . during a day's work with a concrete pump. Never try to tighten a leaking fitting from below when the oil is hot. If the fitting should onto the boom of a concrete pump! Always use a safety ladder or approved work
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