ST-45 PUMP — INITIAL START-UP PROCEDURE

ENGINE SPEED

10.Turn the Operation Pump/Engine switch to the “ENGINE” position (Figure 28).

Figure 28. Operation Pump Engine

Switch

13.Make sure the Operation Pump/Engine switch is in the “ENGINE“ position (Figure 28), and that only the engine is running.

14.Turn the fan switch (Figure 30) to the “ON“ position and listen for fan to start.

Figure 30. Fan On/Off Switch

NOTE

The pump should not be cycling at this

 

time. Only the ENGINE should be

 

running.

11.While monitoring the tachometer (Figure 25), use the EngineThrottle Control to set the engine speed to 2550 RPM (maximum speed) using steps 8A-8C

12.The Accumulator Pressure Gauge (Figure 29) should read approximately 1750 pounds per square inch (psi).

Figure 29. Accumulator Pressure Gauge

COOLING FAN

This section is intended to make sure the fan is working properly. Under normal conditions the fan should be turned on when the hydraulic oil temperature begins to approach 75 degrees fahrenheit.

15.Turn the fan switch to the “OFF“ position and listen for fan to stop. If machine exceeds 170°F or to cool the machine down, turn the operation switch (Figure 28) back to the “ENGINE“ position. Run engine at high RPM with cooling fan on for 10 to 15 minutes.

PRESSURE TEST

16.The Pressure Test switch (Figure 31) is a self-diagnostic test switch, that when activated will test the pressure of the system. This switch will be discussed in the maintenance and troubleshooting section of this manual.

Figure 31. Pressure Test On/Off Switch

HOPPER REMIXER CONTROL

A.Located to the left of the Hydraulic Temperature gauge is the Hopper Remixer Control lever (Figure 32).

B.Turn the Operation Pump/Engine switch to the “ENGINE“ position (only the engine should be running).

CAUTION

If the hydraulic oil temperature exceeds 170 degrees fahrenheit, shut down the pump. DO NOT continue to operate the pump. Failure to shut down the pump will result in severe damage to the pump.

Figure 32. Hopper Remixer Control Lever

PAGE 34 — MAYCO ST-45HRM PUMP — OPERATION & PARTS MANUAL — REV. #4 (07/16/04)

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Multiquip ST-45HRM manual Engine Speed, Running, Cooling FAN, Pressure Test, Hopper Remixer Control
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ST-45HRM specifications

The Multiquip ST-45HRM is a highly versatile and robust soil compactor designed for various construction applications. With its advanced engineering and innovative technologies, it sets a new standard in the compaction equipment market. This model is particularly favored for its reliability, durability, and exceptional performance in both small-scale and large-scale projects.

One of the standout features of the ST-45HRM is its powerful engine. Equipped with a high-performance, fuel-efficient diesel engine, it delivers ample power while ensuring reduced fuel consumption. This results in not only lower operational costs but also decreased environmental impact, aligning with today's sustainability goals.

The compactor's dual-directional capability allows for efficient operation in compacting various soil types. Whether tackling granular, cohesive, or mixed soils, the ST-45HRM adapts seamlessly, ensuring optimal performance. Furthermore, it features a unique vibratory system that maximizes compaction efficiency, enabling faster job completion and minimizing the number of passes required.

Operator comfort and safety are paramount in the design of the ST-45HRM. The machine is equipped with an ergonomic operating platform and intuitive controls, allowing for easy maneuverability even in tight spaces. The advanced vibration dampening technology significantly reduces operator fatigue, making long hours of operation more manageable.

Additionally, the ST-45HRM offers impressive maneuverability, thanks to its compact size and precise control. This is particularly beneficial for working in confined areas, such as urban construction sites where space is limited. Its robust construction ensures it can withstand the rigors of challenging job sites while maintaining performance.

Maintenance is made simple with the ST-45HRM. The design allows for easy access to key components, reducing downtime and enhancing productivity. Regular service intervals and the use of quality materials ensure the longevity of the machine, making it a smart investment for contractors looking for reliable and efficient compaction equipment.

In summary, the Multiquip ST-45HRM combines powerful performance, innovative technology, comfort, and ease of maintenance into a single, versatile package. It is an ideal choice for contractors seeking a dependable soil compactor to meet the demands of various construction projects. With its impressive features and capabilities, the ST-45HRM stands out as a leader in the field of soil compaction.
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