PAGE 4 — MAYCO LS300 CONCRETE PUMP • OPERATION AND PARTS MANUAL — REV. #4 (06/21/10)
TABLE OF CONTENTS
Specification and part number are subject
to change without notice.
Mayco LS300
Concrete Pump
Proposition 65 Warning .............................................2
Table of Contents ......................................................4
Parts Ordering Procedures .......................................5
Safety Message Alert Symbols ............................. 6-7
Rules for Safe Operation .................................... 8-10
Specifications ..........................................................12
Dimensions .............................................................13
Important Hand Signals ..........................................14
General Information .......................................... 15-16
How It Works ...........................................................17
Pump Components ........................................... 18-19
Digital Control Panel Components ..........................20
Digital Readout Screen ...........................................21
Engine Components ...............................................22
Inspection.......................................................... 23-25
Set-Up .....................................................................26
Start-Up Procedure.................................................27
Operation .......................................................... 28-31
Pumping Information......................................... 32-35
Maintenance (Pump) ........................................ 36-43
Maintenance (Trailer) ........................................ 44-46
Trailer Safety Guidelines ................................... 47-61
Troubleshooting (Pump).................................... 62-63
Troubleshooting (Engine)........................................64
Troubleshooting (Trailer Brake System)..................65
Troubleshooting (Electrical) .............................. 66-68
Wiring Diagram (Control Box) ........................... 69-72
Wiring Diagram (Digital Readout Screen)...............73
Wiring Diagram (Hopper Vibrator) ..........................74
Hydraulic System Diagram .....................................75
Manifold Block Ports................................................76
Appendix–Concrete Mix Information................. 77-78
Appendix–Slump Test Procedure ............................79
Appendix–Recommended Shotcrete System ... 80-81
Appendix–Recommended Shotcrete Accessories ..... 82-83
Explanation of Code in Remarks Column ...............84
Suggested Spare Parts...........................................85
Component Drawings
Nameplate and Decals...................................... 86-89
Frame Assembly. .............................................. 90-91
Axle Assembly................................................... 92-93
Brake Line Assembly ........................................ 94-95
Brake Light Assembly ....................................... 96-97
Trailer Hitch Assembly....................................... 98-99
Battery Assembly .......................................... 100-101
Hopper Assembly.......................................... 102-103
Hopper Attachment Assembly ...................... 104-105
Hopper Interior Assembly ............................. 106-107
Shuttle Cylinder Assembly ............................ 108-109
Lubrication Pistons Assembly ....................... 110-113
Fuel Tank/Water Separator Assembly........... 114-115
Heat Exchanger Assembly............................ 116-117
Accumulator Assembly.................................. 118-119
Lubrication Panel Assembly .......................... 120-121
Engine Cover Assembly ................................ 122-123
Hydraulic Tank Assembly .............................. 124-125
Engine Assembly .......................................... 126-127
Throttle Assembly ......................................... 128-129
Hydraulic Pump Assembly ............................ 130-131
Manifold Assembly ........................................ 132-133
Control Box Assembly ................................... 134-135
Control Box Harness Assembly .................... 136-137
Terms and Conditions of Sale .............................. 138
Mayco Pump Warranty......................................... 139
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