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MAYCO LS600 PUMP — OPERATION AND PARTS MANUAL — REV. #4 (9/15/11) — PAGE 63
LS600 PUMP
— TROUBLESHOOTING (PUMP)
TABLE 9. PUMP TROUBLESHOOTING (CONTINUED)
Problem
Possible Problem
To Troubleshoot
Shuttle Cylinder does not stroke
Incorrect Accumulator System
Pressure
Check the system pressure reading.
Verify it is approx. 1750 PSI
Contaminated Relief Valve
Check the manifold for a
contaminated Relief Valve
Swing Solenoid not energizing
Check for burned out solenoid and
12V signal voltage
Swing Valve not functioning properly
Manually cycle the pump using the
manual cylinder jogging switch
Shuttle Cylinder slow to complete
stroke
Improper Flow Control setting
Fully open Flow Control Valve
Incorrect Engine RPM setting
Verify the engine’s high RPM speed is
set to 2550
Incorrect Main Hydraulic System
Operating Pressure
Check the pump pressure gauge.
Verify it is approx. 4400 PSI
Contaminated Swing Relief Cartridge
Check the manifold for contaminated
Swing Relief Cartridge
Low Accumulator System Pressure
Check the accumulator pressure
reading. Verify it is approx. 1750 PSI
Hopper Discharge Nipple Seal
improperly lubricated
Check the Hopper Discharge Nipple
Seal for seizing and lack of lubricant
Misaligned hopper creating excessive
friction on the outlet nipple bearing
sleeve
Realign hopper ensuring S-tube is
rotating in the center of the hopper
outlet.
Lack of lubrication
Grease Nun Plate Bushing
Pump Engine will idle but not increase
to full operating speed
Throttle Control Block Solenoid not
energizing
Check for burned out solenoid and
12V signal voltage
Battery voltage falls below 12VDC on
digital display, causing engine not to
start
Blown out Fuse
Check the fuse
Dead battery
Check the charge on the battery
Wiring connection inside Control Box
Check the wiring connections and
verify power is reaching ignition
switch
Summary of Contents for MAYCO LS600
Page 3: ...MAYCO LS600 PUMP OPERATION AND PARTS MANUAL REV 4 9 15 11 PAGE 3 NOTES...
Page 11: ...MAYCO LS600 PUMP OPERATION AND PARTS MANUAL REV 4 9 15 11 PAGE 11 NOTES...
Page 81: ...MAYCO LS600 PUMP OPERATION AND PARTS MANUAL REV 4 9 15 11 PAGE 81 NOTES...
Page 92: ...PAGE 92 MAYCO LS600 PUMP OPERATION AND PARTS MANUAL REV 4 9 15 11 LS600 PUMP FRAME ASSY...
Page 96: ...PAGE 96 MAYCO LS600 PUMP OPERATION AND PARTS MANUAL REV 4 9 15 11 LS600 PUMP BRAKE LINE ASSY...
Page 98: ...PAGE 98 MAYCO LS600 PUMP OPERATION AND PARTS MANUAL REV 4 9 15 11 LS600 PUMP BRAKE LIGHT ASSY...
Page 102: ...PAGE 102 MAYCO LS600 PUMP OPERATION AND PARTS MANUAL REV 4 9 15 11 LS600 PUMP BATTERY ASSY...
Page 104: ...PAGE 104 MAYCO LS600 PUMP OPERATION AND PARTS MANUAL REV 4 9 15 11 LS600 PUMP HOPPER ASSY...
Page 116: ...PAGE 116 MAYCO LS600 PUMP OPERATION AND PARTS MANUAL REV 4 9 15 11 LS600 PUMP FUELTANK ASSY...
Page 120: ...PAGE 120 MAYCO LS600 PUMP OPERATION AND PARTS MANUAL REV 4 9 15 11 LS600 PUMP ACCUMULATOR ASSY...
Page 130: ...PAGE 130 MAYCO LS600 PUMP OPERATION AND PARTS MANUAL REV 4 9 15 11 LS600 PUMP ENGINE ASSY...
Page 134: ...PAGE 134 MAYCO LS600 PUMP OPERATION AND PARTS MANUAL REV 4 9 15 11 LS600 PUMP THROTTLE ASSY...
Page 138: ...PAGE 138 MAYCO LS600 PUMP OPERATION AND PARTS MANUAL REV 4 9 15 11 LS600 PUMP HYD PUMP ASSY...