ST-45HRM CE CONCRETE PUMP — BRAKING SYSTEM

5.0WHEEL HUB ASSEMBLIES

5.1INSPECTION

Ensure the brake shoes (if braked) are clear of the drum with no interference. Clean the hub to remove any road debris.

Rotate the hub slowly – there should be no roughness or restriction.

The wheel bearings are greased on assembly at the factory and should be re-greased at a minimum every 38,624 km (24,000 miles) or 2 years with axle grease “ELF Multi 2” or equivalent.

Use the service interval to inspect the bearings for wear/damage. Replace the seal if necessary, lubricating the lip and bore, not the outside diameter.

Rotate the hub rapidly – There should be no rumble, rattle or high-pitched noises.

Rock the wheel while holding at the top and the bottom to detect essential bearing endplay.The maximum movement should be 2mm, measured at the wheel rim.

If any clearance or free movement appears to emanate from the suspension, check the axle housing for damage.

WHEEL HUB ASSEMBLIES WITH TAPER ROLLER

BEARINGS

In order to re-set, remove the grease cap, split pin and set the slotted nut. See Figure 45.

It is generally accepted that a finger tight slotted nut, will result in a correct setting and running clearance for normal bearing life. Always replace the split pin with a new one when setting is complete and re-fit the grease cap.

Figure 45. Grease Cap, Split Pin

and Slotted Nut Removal

WARNING

It is our experience that the majority of bearing failures are the result of over- tightening of the slotted nut or failure to replace contaminated grease (e.g.: water ingress – especially salt water).

WARNING

It is as important not to OVERPACK the hub with grease, as it is to allow bearings to run dry.

REMOVAL OF HUB/BRAKE DRUM ASSEMBLY

Remove the wheel, grease cap, split pin, slotted nut, and washer and pull the drum off the stub axle.To avoid contamination, take care not to drop the outer bearing cone onto the floor.

5.4WHEEL HUB ASSEMBLIES WITH UNIT BEARINGS

These hubs require no maintenance, however at intervals of 38,624 km (24,000 miles) or 12 months, the wheel hubs should be checked for side play and the complete hub replaced if necessary.

WARNING

When refitting the hub, always fit a new nut and tighten to a torque of 280Nm (206lbf.ft.)

5.5WHEEL NUT / STUD TORQUE SETTINGS

TABLE 9. WHEEL NUT/ STUD TORQUE SETTINGS

Wheel Nuts

 

Nm

 

Lbf.ft

 

 

 

 

 

 

Min.

 

Max.

Min.

 

Max.

 

 

 

 

 

 

 

 

 

 

Wheel Nut 1/2 IN. UNF

70

 

110

50

 

80

 

 

 

 

 

 

 

Wheel Nut 5/8 IN. UNF

135

 

160

100

 

120

 

 

 

 

 

 

 

Wheel Nut M18 X 1.5

245

 

300

180

 

220

 

 

 

 

 

 

 

Wheel Studs

 

 

 

 

 

 

 

 

 

 

 

 

 

Wheel Stud M12 X 1.5

65

 

90

50

 

65

 

 

 

 

 

 

 

Wheel Stud M14 X 1.5

120

 

150

90

 

110

 

 

 

 

 

 

 

PAGE 46 — MAYCO ST-45HRM CE PUMP — OPERATION & PARTS MANUAL — REV. #0 (02/23/04)

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Multiquip ST-45HRM CE manual Inspection, Bearings
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ST-45HRM CE specifications

The Multiquip ST-45HRM CE is a robust and versatile machine designed for a variety of heavy-duty applications, particularly in construction and industrial settings. Known for its durability and efficiency, the ST-45HRM CE stands out due to its combination of advanced technology, user-friendly features, and powerful performance, making it an ideal choice for professionals seeking reliable equipment.

One of the main features of the ST-45HRM CE is its powerful engine. It is equipped with a high-performance diesel engine that provides exceptional reliability and fuel efficiency. This engine allows the machine to achieve high-performance levels while minimizing operational costs, making it a cost-effective solution for various jobs. Additionally, the engine meets stringent environmental regulations, ensuring compliance with the latest emission standards.

The ST-45HRM CE is designed with operator comfort and safety in mind. One of its key characteristics is the spacious and ergonomically designed operator platform that allows for easy access and enhanced visibility. The controls are intuitively placed, providing excellent maneuverability and reducing operator fatigue during long working hours. Moreover, safety features such as emergency shut-off switches and protective enclosures are built into the design, ensuring a safer working environment.

In terms of technology, the ST-45HRM CE is equipped with advanced hydraulic systems that enhance its lifting capabilities. This machine is capable of lifting loads up to 45 tons, making it suitable for heavy materials and equipment. The hydraulic system is designed for smooth operation, allowing for precise control and optimal performance in various applications, including lifting, transportation, and heavy-duty towing.

Maintenance is another consideration where the ST-45HRM CE excels. It features easy access points for routine checks and repairs, reducing downtime and operational costs associated with maintenance. The components are engineered for longevity, ensuring that the machine can withstand the rigors of continuous use in demanding environments.

Overall, the Multiquip ST-45HRM CE is a standout in its category, boasting an exceptional blend of power, efficiency, and user-centric design. With its advanced features, safety technologies, and ease of maintenance, it is ideal for professionals in construction, industrial lifting, and other heavy-duty applications, providing a reliable solution to meet their needs.
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