HOSE/LINE Blockage

operation

4.Scroll through the digital readout screen with the scroll switch to go to screen 7 (Figure 29). This screen will show the volume in strokes per minute.

THROTTLE ON 7

STROKES: 100

STROKES/MIN 10.0

YDS/HR 0.0

Figure 29. Strokes Per Minute Display

5.Let the pump cycle until the hydraulic oil temperature (Figure 30) is approximately 50° to 60° F.

HYDRAULIC OIL

TEMPERATURE

7.Push the hopper remixer control lever downward (Figure 32).The hopper remixer control lever is located to the left of the hydraulic temperature gauge.

PUSH UP TO

REVERSE BLADE

ROTATION (CCW)

PUSH DOWN TO OPERATE (CW BLADE ROTATION)

Figure 32. Hopper Remixer Control Lever

8.Observe that the blades (Figure 33) inside the hopper are rotating in a clockwise direction (forward). To make the blades rotate in a counterclockwise direction (reverse), push the hopper remixer control lever upward (Figure 32).

BLADES

REVERSE

(CCW)

FORWARD (CW)

Figure 30. Hydraulic Oil Temperature Gauge

6.The accumulator pressure gauge (Figure 31) should read approximately 1750 pounds per square inch (psi).

1500

1000 2000

500 2500

3000

ACCUMULATOR

PRESSURE

Figure 31. Accumulator Pressure Gauge

SHAFT ROTATION

Figure 33. Hopper Remixer Blade (Rotation)

9.Place the volume control switch (Figure 27) in the increase volume position (right) to increase the volume to 25-30 strokes per minute. Slowly discharge the concrete from the ready-mix truck into the hopper and completely fill it. Keep the pump running continuously until concrete is discharging at the end of the delivery system. If the pump is stopped during this procedure, a blockage may occur.

CAUTION

If hoses or lines are blocked for any reason, or if the lines are kinked when starting up or during the pumping cycle, the pump pressure could straighten out the kink or force out the blockage. This rapid surge of material could cause the lines to whip or move in a manner that could cause injury to personnel.

MAYCO LS600P CONCRETE PUMP • operation manual — rev. #0 (05/13/13) — page 35

LS600P specifications

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