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Multiquip manual Mayco ST-45HRM Structural Concrete Pump

Models: ST-45HRM

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MAYCO ST-45HRM

STRUCTURAL CONCRETE PUMP

Proposition 65 Warning	2
Here’s how To Get Help	3
Table of Contents	4
Parts Ordering Procedures	5
Pump Specifications	6
Engine Specifications	7
Dimensions	8
Safety Message Alert Symbols	9-10
Rules for Safe Operation	11-13
Operation and Safety Decals	14-15
Important Hand Signals	16
General Information	17-18
How it Works	19
Pump Components	20-21
Control Box Components	22
Engine Components	23
Operating Procedures	24-28
Inspection	29-31
Initial Start-Up Procedure	32-35
Towing Guidelines	36-37
Trailer Safety Guidelines	38-40
Towing Information	41-42
Wiring Diagram (Tail Lights)	43
Maintenance (Pump)	44-52
Hydraulic Hose Connections	54-56
Manifold Port Locations	57
Appendix — Concrete Mix Information	58-59
Appendix — Slump Test Procedure	60
Troubleshooting (Engine)	61
Troubleshooting (Hydraulic System)	62
Troubleshooting (Electrical System)	63
Troubleshooting (Brake System)	64

NOTE	Specification and part
	number are subject to
	change without notice.

TABLE OF CONTENTS
PARTS ILLUSTRATIONS
Explanation Of Code In Remarks Column	..............64
Suggested Spare Parts	65
Appendix — Recommended
Shotcrete System	66
Appendix — Recommended
Shotcrete Accessories	68
Decal Placement	70-71
Axle Assembly	74-75
Brakeline Assembly	76-77
Hopper Assembly	78-79
Hopper Attachment Assembly	80-81
Hopper Interior Assembly	82-83
Shuttle Cylinder Assembly	84-85
Fuel and Hydraulic Tank Assembly	86-89
Front Cover Assembly	90-91
Heat Exchanger Assembly	92-93
Engine and Frame Assembly	94-96
Throttle and Water Filter Assembly	96-97
Hydraulic Pump Assembly	98-99
Lubrication Pistons Assembly	100-101
Electrical System Assembly	102-103
Accumulator Assembly	104-105
Manifold Assembly	106-107
Remixer Control Assembly	108-109
Battery Assembly	110-111
Lubrication Panel	112-113
Taillight Assembly	114-115
Control Box Interior Door Assembly	116-117
Control Box Mounting Assembly	118-119
Control Box Assembly	120-121
Control Box Door Wiring Diagram	122
Control Box Interior Wiring Diagram	123
Terminal Block Wiring Diagram	124
Control Box Electrical Schematic	125-126
Interconnect Hydraulic Control Box	127
Hydraulic Diagram	128
Optional Radio Control	129
Terms and Conditions Of Sale — Parts	130
Mayco Pump Warranty	131

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

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Multiquip manual Mayco ST-45HRM Structural Concrete Pump

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 Multiquip INC