Multiquip ST-45HRM manual ST-45 Pump -TROUBLESHOOTING Brake System, Brake System Troubleshooting

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ST-45 PUMP —TROUBLESHOOTING (BRAKE SYSTEM)

Practically all breakdowns can be prevented by proper handling and maintenance inspections, but in the event of a breakdown, please take a remedial action following the diagnosis based on the Brake System Troubleshooting (Table 11) information shown below and on the proceeding page. If the problem cannot be remedied, please leave the unit just as it is and consult our company's business office or service plant.

TABLE 12. BRAKE SYSTEM TROUBLESHOOTING

SYMPTOM

POSSIBLE PROBLEM

SOLUTION

 

 

 

 

Overheated wheel bearing?

Replace wheel bearing and pack with grease.

 

 

 

 

Low brake fluid?

Fill and bleed brake system.

Brakes squeak, chatter or chuck.

 

 

Siezed acutator master cylinder?

Replace/Rebuild master cylinder.

 

 

 

 

 

Brake shoe noise?

Inspect drums. Adjust shoes or replace if necessary.

 

 

 

 

Leaking wheel cylinder?

Check and replace wheel cylinder and bleed brake system.

 

 

 

 

Low brake fluid level?

Fill with dot approved brake fluid and bleed brake system.

 

 

 

 

Brake actuator frame damage?

Replace complete actuator unit.

 

 

 

 

Brake line being pinched?

Replace brake line.

Brakes overheah, fail to operate, pull

 

 

 

 

to the side, or function poorly

Seized actuator?

Replace or rebuild actuator.

 

 

 

 

Broken return spring?

Replace spring.

 

 

 

 

Brakes improperly adjusted?

Check adjustment.

 

 

 

 

 

Break-away cable might be pulled. Determine cause and correct.

 

Break-away cable system

Pry up on cable until indicator bead touches or rests against cable

 

partially activated?

spring stop. This will fully release the frame brakes and prevent

 

 

drag.

 

 

 

PAGE 64 — MAYCO ST-45HRM PUMP — OPERATION & PARTS MANUAL — REV. #4 (07/16/04)

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Page 63 Page 65
Contents Model ST-45HRM Proposition 65 Warning Heres HOW to GET Help Mayco ST-45HRM Structural Concrete Pump Wilmington Ave Carson, CA Parts Ordering ProceduresMultiquip INC ST-45 Pump Specifications ST-45 Pump Pump SpecificationsEngine Specifications ST-45 Pump Engine SpecificationsST-45 Pump Dimensions ST-45 Structural Concrete Pump DimensionsST-45 Pump Safety Message Alert Symbols Seriously injured if you do not follow directionsST-45 Pump Safety Message Alert Symbols Always wear approved respiratory protectionGeneral Safety Never operate the pump in an explosiveMaintenance Safety ST-45 Pump Rules for Safe OperationTransporting TowingBattery EmergenciesST-45 Pump Operation and Safety Decals Machine Safety DecalsST-45 Pump Operation and Safety Decals ST-45 Pump Important Hand Signals Operation Hand SignalsST-45 Pump General Information Concrete Mix DesignST-45 Pump General Information Regional DifferencesST-45 Pump HOW IT Works Pumping CycleST-45 Pump Pump Components Major Pump ComponentsST-45 Pump Pump Components ST-45 Pump Control BOX Components ST-45 Pump Engine Components Initial ServicingST-45 Pump Operating Procedures Operating SuggestionsGetting the concrete to flow through NotremotelyAdmixtures Pumping TipsPriming the Pump and Delivery System with Slurry Reverse Pumping Procedure Shuttle Tube Inspection ProcedureStop the pump.Switch off the engine Clearing Concrete BlockageCarefully knock the end of the hose away from the reducer Chip the concrete out of the reducer with the pry barNience Read safety instructions at the begin- ning of manual ST-45 Pump InspectionFuel Check Before StartingST-45 Pump Inspection Engine OIL CheckMake sure pump/engine is placed on level ground Hydraulic OilHydraulic Oil Filler Hole Rear Stabilizer StandST-45 Pump Initial START-UP Procedure Emergency Stop SwitchIgnition Switch StartingControl Switch Strokes within 1 minuteEngine Speed RunningCooling FAN Pressure TestOptional Radio Remote Control ST-45 Pump Initial START-UP ProcedureCylinder Lubrication BOX ST-45 Pump -TOWING Guidelines Recommended MaintenancePumpTrailerVehicle Connection ST-45 Pump -TOWING Guidelines Towing ApplicationsST-45 Pump -TRAILER Safety Guidelines Match the size of the tireST-45 Pump -TRAILER Safety Guidelines Tires/Wheels/Lug NutsTiresWear/Inflation SuspensionLug Nut Torque Requirements ST-45 Pump -TRAILER Safety GuidelinesStart all wheel lug nuts by hand Towing Information ST-45 -TOWING InformationUSE 2 Ball only Backing UP ST-45 -TOWING InformationBack the trailer up ST-45 Pump Wiring Diagram Tail Lights TrailerTail Lights Wiring DiagramST-45 Pump Maintenance Pump Cleaningthe Pump and Delivery SystemHydraulic OIL System Maintenance ST-45 Pump Maintenance PumpEngine Hatz Model 3M41 57HP Diesel ST-45 Pump Maintenance Pump Battery MaintenanceBrake System Lubricate the hitch ball withST45 Pressure Setting Sequence To set maximum pump pressureST45 Accumulator Circuit Cleaningthe Lubrication BOXChecking Accumulator Bladder Pressure Pilot Relief Valve Cartridge Adjustment Oil prior to installation Cylinder CUP Replacement ProcedureSize and type of aggregate Type of concrete being pumped Wear Plate and Ring Replacement Procedure Wear Plate InstallationInstall the two cylinder O rings Hopper Interior Assy, Item Wear Ring installationWheel Bearings Extended Storage InstructionsPage ST-45 Pump Hydraulic Hose Connections Hydrauilc Hose ConnectionsST-45 Pump Hydraulic Hose Connections ST-45 Pump Hydraulic Hose Connections ST-45 Manifold Port Locations Manifold PortsAppendix ST-45 Pump Concrete MIX Information Appendix ST-45 Pump Concrete MIX Information Appendix ST-45 Pump Slumptest Procedure SlumpTest 1/3 FullST-45 Pump Troubleshooting Engine Engine TroubleshootingST-45 Pump -TROUBLESHOOTING Hydraulic System Hydraulic System TroubleshootingST-45 Pump -TROUBLESHOOTING Electrical System ST-45 Pump -TROUBLESHOOTING Brake System Brake System TroubleshootingPage ST-45 Pump Explanation of Code in Remarks Column Items Found In the Items Number ColumnST-45 Structural Concrete Pump ST-45 Suggested Spare PartsPart numbers on this Suggested Appendix ST-45 Pump Recommended Shotcrete System Shotcrete SystemGeneral recommendations REDUCER, 3x2.5x36 H-D EndsVibrator on the reducer by the pool improves pumpability Air passages clean Material has Passedthroughthe Entire Hose LengthPart Name QTY Remarks ST-45 Pump Decal Placement TBD DECAL, Hopper Rexmixer ST-45 Pump Axle Assy Part Name QTY ST-45 Pump Brakeline Assy TBD NUT Lock Washer ST-45 Pump Hopper Assy REMIXER, Shaft ST-45 Pump Hopper Attachment Assy ST-45 Pump Hopper Attachment Assy BOLT, HEXST-45 Pump Hopper Interior Assy NUT Lock 5/8 BOLT, HEX Head 1/2 NC X 1 1/4ST-45 Pump Shuttle Cylinder Assy Thrust Washer Fuel and Hydraulic Tank Connections Assy ST-45 Pump Fuel and Hydraulictank Connections Assy ST-45 Pump Fuel and Hydraulictank Assy ST-45 Pump Fuel and Hydraulictank Assy ST-45 Pump Front Cover Assy ST-45 Pump Front Cover Assy ST-45 Pump Heat Exchanger Assy ST-45 Pump Heat Exchanger Assy ST-45 Pump Engine and Frame Assy ST-45 Pump Engine and Frame Assy ST-45 Pump -THROTTLE and Water Filter Assy Bracket ST-45 Pump Hydraulic Pump Assy ST-45 Pump Hydraulic Pump Assy ST-45 Pump Lubrication Pistons Assy ST-45 Pump Lubrication Pistons Assy Sistema Electrico Hatz Assy ST-45 Pump Electrical System Assy ST-45 Pump Accumulator Assy Accumulator 1 Gallon ST-45 Pump Manifold Assy Test Port ST-45 Pump Remixer Control Assy Valve Remix W/LEVER ST-45 Pump Battery Assy Battery Holder Frame ST-45 Pump Lubrication Panel Grease PointsST-45 Pump Lubrication Panel ST-45 Pump -TAILLIGHT Assy Tail Light Assy ST-45 Pump Control BOX Interior Door Assy Relay , Small ST-45 Pump Control BOX Mounting Assy 492366 Screw HHC 5/16-18x1-1/2 EM510703 ST-45 Pump Control BOX Assy Tachometer ST-45 Pump Control BOX Doorwiring Diagram ST-45 Pump Control BOX Interiorwiring Diagram ST-45 Pump -TERMINAL Blockwiring Diagram ST-45 Pump Control BOX Electrical Schematic ST-45 Pump Control BOX Electrical Schematic TB1 ST-45 Hydraulic Diagram Part ID Description QuantityST-45 Optional Radio Control Terms and Conditions of Sale Parts FreightpolicyMechanical Drive Models Mayco PumpwarrantyHydraulic Drive Models Your Local Dealer is

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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