
PAGE 4 — MAYCO LS400/LS500 PUMP — OPERATION AND PARTS MANUAL — REV. #6 (09/19/11)
LS400/LS500 PUMP —TABLE OF CONTENTS
Specification and part number are subject
to change without notice.
MAYCO LS400/LS500
CONCRETE PUMPS
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).....................................62-64
Troubleshooting (Engine)........................................65
Troubleshooting (Brake System)............................. 66
Troubleshooting (Electrical) ...............................67-69
Wiring Diagram (Control Box) ............................70-73
Wiring Diagram (Optional 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 Codes In Remarks Column ............ 84
Suggested Spare Parts........................................... 85
COMPONENT DRACOMPONENT DRA
COMPONENT DRACOMPONENT DRA
COMPONENT DRAWINGSWINGS
WINGSWINGS
WINGS
Name Plate and Decals .....................................86-89
Frame Assy. .......................................................90-91
Axle Assy............................................................92-93
Brake Line Assy. ................................................94-95
Brake Lights Assy...............................................96-97
Trailer Hitch Assy................................................98-99
Battery Assy. ..................................................100-101
Hopper Assy...................................................102-103
Hopper Attachment Assy. ..............................104-105
Hopper Interior Assy. .....................................106-107
Shuttle Cylinder Assy. ....................................108-109
Lubrication Pistons Assy. ...............................110-111
Fuel Tank Assy. ..............................................112-115
Heat Exchanger Assy.....................................116-117
Accumulator Assy...........................................118-119
Remixer Control Assy.....................................120-121
Lubrication Panel Assy. ..................................122-123
Engine Cover Assy.........................................124-125
Hydraulic Tank Assy. ......................................126-127
Engine Assy....................................................128-129
Throttle Assy. .................................................130-131
Water Separator Assy. ...................................132-133
Hydraulic Pump Assy. ....................................134-135
Manifold Assy. ................................................136-137
Control Box Assy. ...........................................138-139
Control Box Harness Assy. ............................140-141
Remote Control Cable Assy. ..........................142-143
Hydraulic Stabilizer Assy. (Optional) ..............144-145
Terms and Conditions of Sale - Parts ................... 146
Mayco Pump Warranty.......................................... 147
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