Multiquip ST-45HRM manual ST-45 Pump Maintenance Pump, Engine Hatz Model 3M41 57HP Diesel

Page 45

ST-45 PUMP — MAINTENANCE (PUMP)

5.Add water to the hopper. Pump and flush clean the entire hopper, shuttle tube and discharge elbow with water.

6.Scoop out 12 inches of concrete from the inboard end of the delivery hose. “Cork screw” a 6" x 6" x 8" sponge into the end of the first hose section. Reconnect the hose to the discharge elbow.

7.Fill hopper with water. Pump until sponge and clean water come out the discharge end of the hose and line system.

8.When the Model ST-45 has been used to pump small aggregate concrete (pea rock, ½" minus) or mixes with high fines content (60% or more sand) there will be a tendency for hardened concrete to build up on the inside surface of the shuttle tube. Therefore, at the end of every such pour, after the pump and system have been cleaned and the engine shut off, remove the shuttle tube inspection plate (follow the Shuttle Tube Inspection Procedure, page 26-27) and remove all remaining concrete.

9.When the Model ST-45 has been used to pump large aggregate concrete (¾" to 1 ½") follow the instructions in step 8 once per week.

WARNING

NEVER use muriatic acid to clean the pump. Acid will dissolve the chrome finish on material cylinder bore and main hydraulic cylinder rods.

Use only a 2½" diameter clean-out hook when back-pumping into redi-

NOTE mix truck. Use a safety chain to secure the clean-out hook to some solid part of the mixer truck to prevent hook from jumping off of the drum. Run the pump at 6 strokes per minute maximum speed.

ENGINE (Hatz Model 3M41 57HP Diesel)

The ST-45 is equipped with a Model 3M41 57HP diesel engine. For information concerning the procedure in checking, removing, cleaning, etc.of the various engine parts or any other information on the engine not contained herein, refer to the engine manufacturer’s instruction manual.

HYDRAULIC OIL SYSTEM MAINTENANCE

1.When changing the hydraulic oil or topping off the reservoir, use only the following type. (Reservoir capacity 58 gal.)

Hydraulic oil: Shell Oil Tellius 68 or

Mobil DFE 26

Texaco Rand HDC

The Mayco pump is equipped with an in-tank return hydraulic filter with a 10 micron cleanable filter. The element has been designed to remove all particles large enough to cause wear and job break down. Under normal conditions, we recommend replacement every 6 month.

WARNING

DO NOT mix oil brands! This may impair quality.

The most important factor to keep in mind is the effect of cold weather on the hydraulic oil. The viscosity (thickness) of the hydraulic oil will be much heavier.

Always run machine until oil temperature reaches a minimum of 50°F. before pumping. Damage to the main piston pump will occur if the machine is cycled too fast before the oil temperature reaches the minimum of 50°F. Cycle the machine at 6-8 strokes per minute at approximately 1/3 throttle.

In areas where the weather normally remains under 50°F., use Shell Oil Tellus – 46, or the equivalent.The above steps must be followed or severe damage to the main axial piston pump will be the end result.

2.Lubrication: Grease daily/Hour

■

Main hydraulic cylinders

- 2 Place

■

Remix bearings

- 2 Place

■

Axle crank

- 1 Place

■

Suttle cylinders

- 2 Place

■ “S” tube outlet flange

- 3 Place

Grease Type:

Lithium Based EP

 

 

Texaco Multitak 20

 

 

Lubriplate ED-2

 

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

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Contents Model ST-45HRM Proposition 65 Warning Heres HOW to GET Help Mayco ST-45HRM Structural Concrete Pump Parts Ordering Procedures Wilmington Ave Carson, CAMultiquip INC ST-45 Pump Pump Specifications ST-45 Pump SpecificationsST-45 Pump Engine Specifications Engine SpecificationsST-45 Structural Concrete Pump Dimensions ST-45 Pump DimensionsSeriously injured if you do not follow directions ST-45 Pump Safety Message Alert SymbolsAlways wear approved respiratory protection ST-45 Pump Safety Message Alert SymbolsNever operate the pump in an explosive General SafetyST-45 Pump Rules for Safe Operation Maintenance SafetyTransporting TowingEmergencies BatteryMachine Safety Decals ST-45 Pump Operation and Safety DecalsST-45 Pump Operation and Safety Decals Operation Hand Signals ST-45 Pump Important Hand SignalsConcrete Mix Design ST-45 Pump General InformationRegional Differences ST-45 Pump General InformationPumping Cycle ST-45 Pump HOW IT WorksMajor Pump Components ST-45 Pump Pump ComponentsST-45 Pump Pump Components ST-45 Pump Control BOX Components Initial Servicing ST-45 Pump Engine ComponentsOperating Suggestions ST-45 Pump Operating ProceduresGetting the concrete to flow through NotremotelyPumping Tips AdmixturesPriming the Pump and Delivery System with Slurry Shuttle Tube Inspection Procedure Reverse Pumping ProcedureStop the pump.Switch off the engine Clearing Concrete BlockageChip the concrete out of the reducer with the pry bar Carefully knock the end of the hose away from the reducerNience ST-45 Pump Inspection Read safety instructions at the begin- ning of manualFuel Check Before StartingEngine OIL Check ST-45 Pump InspectionMake sure pump/engine is placed on level ground Hydraulic OilRear Stabilizer Stand Hydraulic Oil Filler HoleEmergency Stop Switch ST-45 Pump Initial START-UP ProcedureIgnition Switch StartingStrokes within 1 minute Control SwitchRunning Engine SpeedCooling FAN Pressure TestST-45 Pump Initial START-UP Procedure Optional Radio Remote ControlCylinder Lubrication BOX Recommended Maintenance ST-45 Pump -TOWING GuidelinesPumpTrailerVehicle Connection Towing Applications ST-45 Pump -TOWING GuidelinesMatch the size of the tire ST-45 Pump -TRAILER Safety GuidelinesTires/Wheels/Lug Nuts ST-45 Pump -TRAILER Safety GuidelinesTiresWear/Inflation SuspensionST-45 Pump -TRAILER Safety Guidelines Lug Nut Torque RequirementsStart all wheel lug nuts by hand ST-45 -TOWING Information Towing InformationUSE 2 Ball only ST-45 -TOWING Information Backing UPBack the trailer up TrailerTail Lights Wiring Diagram ST-45 Pump Wiring Diagram Tail LightsCleaningthe Pump and Delivery System ST-45 Pump Maintenance PumpST-45 Pump Maintenance Pump Hydraulic OIL System MaintenanceEngine Hatz Model 3M41 57HP Diesel Battery Maintenance ST-45 Pump Maintenance PumpBrake System Lubricate the hitch ball withTo set maximum pump pressure ST45 Pressure Setting SequenceCleaningthe Lubrication BOX ST45 Accumulator CircuitChecking Accumulator Bladder Pressure Pilot Relief Valve Cartridge Adjustment Cylinder CUP Replacement Procedure Oil prior to installationSize and type of aggregate Type of concrete being pumped Wear Plate Installation Wear Plate and Ring Replacement ProcedureInstall the two cylinder O rings Hopper Interior Assy, Item Wear Ring installationExtended Storage Instructions Wheel BearingsPage Hydrauilc Hose Connections ST-45 Pump Hydraulic Hose ConnectionsST-45 Pump Hydraulic Hose Connections ST-45 Pump Hydraulic Hose Connections Manifold Ports ST-45 Manifold Port LocationsAppendix ST-45 Pump Concrete MIX Information Appendix ST-45 Pump Concrete MIX Information SlumpTest 1/3 Full Appendix ST-45 Pump Slumptest ProcedureEngine Troubleshooting ST-45 Pump Troubleshooting EngineHydraulic System Troubleshooting ST-45 Pump -TROUBLESHOOTING Hydraulic SystemST-45 Pump -TROUBLESHOOTING Electrical System Brake System Troubleshooting ST-45 Pump -TROUBLESHOOTING Brake SystemPage Items Found In the Items Number Column ST-45 Pump Explanation of Code in Remarks ColumnST-45 Suggested Spare Parts ST-45 Structural Concrete PumpPart numbers on this Suggested Shotcrete System Appendix ST-45 Pump Recommended Shotcrete SystemREDUCER, 3x2.5x36 H-D Ends General recommendationsVibrator on the reducer by the pool improves pumpability Material has Passedthroughthe Entire Hose Length Air passages cleanPart 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 BOLT, HEX ST-45 Pump Hopper Attachment AssyST-45 Pump Hopper Interior Assy BOLT, HEX Head 1/2 NC X 1 1/4 NUT Lock 5/8ST-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 Grease Points ST-45 Pump Lubrication PanelST-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 Part ID Description Quantity ST-45 Hydraulic DiagramST-45 Optional Radio Control Freightpolicy Terms and Conditions of Sale PartsMayco Pumpwarranty Mechanical Drive ModelsHydraulic 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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