Multiquip manual LS400/LS500 Pump Pump Components

LS400/LS500 PUMP — PUMP COMPONENTS

Figure 5 illustrates the location of the major components for the LS400/LS500 Concrete Pump. The function of each component is described below:

1. Tow Hitch Coupler – Requires a 2-inch ball hitch or a 3-inch pintle. Capable of towing 6,000 lbs.

2.Documentation Box – Contains engine and pump operation, parts and maintenance information.

3. Manifold Access Door– Release latch and lift door to access the Hydraulic Manifold Block.

4. Hydraulic Manifold Block – Manifold block that controls the flow of hydraulic pressure to the components required to control the pump.

5.Hopper Discharge Sleeve – Connect hoses or steel pipes to the discharge sleeve for pouring concrete.

6.Pump End Jack Stand – Use this jack stand to level and support the rear end of the pump. NEVER deploy on un-level ground and always check for firmness of ground.

7.Shuttle Cylinder – Under pressure, the shuttle cylinder shears concrete passing from the concrete cylinder to the delivery line during the cycle phase.

8.Tires — This trailer uses two ST205-750 x15E type tires. Tire inflation pressure is the most important factor in tire life. Pressure should be checked to 50 psi cold before operation. DO NOT bleed air from tires when they are hot. Check inflation pressure weekly during use to insure the maximum tire life and tread wear.

9.Battery – This unit uses a +12 VDC type battery. ALWAYS use gloves and eye protection when handling the battery.

10.Hydraulic Pump – This unit incorporates an axial variable displacement hydraulic piston pump.

11.Heat Exchanger – Reduces temperature of the hydraulic oil.The exchanger draws oil from the hydraulic tank through a filter and into the heat exchanger before allowing it to flow into the hydraulic system.

12.Accumulator – Stores hydraulic oil under pressure and releases it to the shuttle cylinder and provides the pressure needed to ensure enough force is provided during cycle.

13.Remixer Control Lever – Controls the forward/reverse motion of the hopper remixer paddles.

14.Hydraulic Oil Sight Glass – Use to determine the amount of hydraulic oil remaining in tank. The sight glass also contains a temperature gauge for monitoring the temperature of the hydraulic oil.

15. Hydraulic OilTank/Cap– Remove cap to add hydraulic fluid. Fill with Shell Oil Tellus 68 or Mobil Oil DFE26 if level is low.

16. Accumulator Pressure Gauge– Used to monitor accumulator pressure. Pressure should read at least 1750 psi for correct pump operation.

17. Pumping Pressure Gauge – Used to monitor pressure in the concrete cylinders and shuttle tube.

18. Control Box – Contains the electrical components required to run the pump. See Control Box Components section for component callouts.

19. Fuel Tank/Cap – Fill with diesel fuel. Fuel tank (cell) holds approximately 40 gallons (176 liters). DO NOT top off fuel. Wipe up any spilled fuel immediately.

20. Hydraulic Oil Filter – This in-tank return hydraulic filter with a 10 micron cleanable filter is designed to remove all particles large enough to cause wear and job break down. Under normal conditions, replace every 6 months.

21Lubrication Box – This box is empty when shipped from the factory. Please fill with 3 gallons (11.35 liters) of SAE 30 motor oil for first time use. Also check the dual clean-out point on bottom of lubrication box for a secure tight fit.

22. Rear Running Lights – ALWAYS check and make sure both the right and left running lights are functioning correctly before towing the pump.

23. Remixer Motor – Drives the remixer paddles inside the hopper. The motor direction is controlled by the remixer control lever.

24. Hopper/Hood – Lift hood to fill. Concrete from a Redi- Mix truck is poured into this hopper. The hopper can hold 10 cu. ft of concrete with optional forward/reverse mixer. NEVER put hands or any other parts of you body into the hopper.

25.Tow End Jack Stand – Use this jack stand to level and support the tow end of the pump.

MAYCO LS400/LS500 PUMP — OPERATION AND PARTS MANUAL — REV. #6 (09/19/11) — PAGE 19