MULTIQUIP LS450 Operation Manual
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MULTIQUIP LS450 Operation Manual

Concrete pump hatz 4h50 diesel engine
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OPERATION MANUAL
SERIES
MODEL LS450
CONCRETE PUMP
(HATZ 4H50 DIESEL ENGINE)
Revision #2 (02/23/21)
To find the latest revision of this publication or
associated parts manual, visit our website at:
www.multiquip.com
THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALL TIMES.

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  • Page 1 OPERATION MANUAL SERIES MODEL LS450 CONCRETE PUMP (HATZ 4H50 DIESEL ENGINE) Revision #2 (02/23/21) To find the latest revision of this publication or associated parts manual, visit our website at: www.multiquip.com THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALL TIMES.

  • Page 2: Proposition 65 Warning

    PROPOSITION 65 WARNING PAGE 2 — MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21)

  • Page 3: Silicosis/Respiratory Warnings

    NIOSH/MSHA for the materials being used. MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21) — PAGE 3...

  • Page 4: Table Of Contents

    Wiring Diagram #1 (External Control Box) .... 87 Electrical Component Locator (Wiring Diag. #2) ... 88 Wiring Diagram #2 (External Control Box) .... 89 NOTICE Specifications are subject to change without notice. PAGE 4 — MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21)

  • Page 5: Safety Information

    COULD result in MINOR or MODERATE INJURY. Accidental Starting Hazards NOTICE Addresses practices not related to personal injury. Pressure Hazards Hydraulic Fluid Hazards Rotating Parts Hazards MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21) — PAGE 5...
  • Page 6 Also, know the phone numbers of the nearest ambulance, doctor and fi re department. This information will be invaluable in the case of an emergency. PAGE 6 — MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21)
  • Page 7 Allow these parts to cool of this test is to shut down the engine in the event of an before servicing equipment. emergency. MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21) — PAGE 7...
  • Page 8 „ ALWAYS disconnect the NEGATIVE battery terminal before performing service on the equipment. „ ALWAYS keep battery cables in good working condition. Repair or replace all worn cables. PAGE 8 — MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21)
  • Page 9 „ ALWAYS inspect the hitch and coupling for wear. NEVER tow a trailer with defective hitches, couplings, chains, etc. MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21) — PAGE 9...
  • Page 10 Recyclers and manufacturers alike promote the process of recycling metal. Using a metal recycling center promotes energy cost savings. PAGE 10 — MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21)

  • Page 11: Specifications

    1.85 gallons (7.0 liters) Coolant Capacity with Radiator approx. 3.4 gallons (13 liters) Fuel Type #2 diesel fuel Battery 12V BCI Group 27, 110 Ah/450 A MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21) — PAGE 11...

  • Page 12: Dimensions

    DIMENSIONS Table 3. Pump Dimensions Reference Dimensions Letter in. (mm) 44 (1,117) 173 (4,394) 24 (610) 70 (1,778) 68 (1,727) Figure 1. Pump Dimensions PAGE 12 — MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21)

  • Page 13: Important Hand Signals

    SPEED UP DOWN ADD WATER ALL DONE STOP PUMP LITTLE BIT CLEAN-UP 4-GALLONS PULL FORWARD BACK IN DRIVE IN BACK UP Figure 2. Operation Hand Signals MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21) — PAGE 13...

  • Page 14: General Information

    PAGE 14 — MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21)
  • Page 15 It is suggested that a sponge approximately 2" × 4" × 6" in size be placed in the hose before the start of pumping. MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21) — PAGE 15...
  • Page 16 NOTICE It is strongly recommended that steel pipe be used on all vertical pumping for safety and convenience. PAGE 16 — MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21)
  • Page 17 If waiting time is excessive, it would be wise to wash out the pump and hoses and start over when the new truck arrives. MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21) — PAGE 17...
  • Page 18 Increasing the engine speed will material could escape and cause severe bodily harm. only compound the problem. PAGE 18 — MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21)
  • Page 19 If concrete cannot be loosened from the outlet of the shuttle tube, remove the clean-out plug on the bottom of the hopper to discharge the concrete. 7. Chip the blockage out with the pry bar. MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21) — PAGE 19...
  • Page 20 The pumping sequence then repeats for the duration of cylinder with concrete. the operation. The shuttle tube is sequenced to pivot to each concrete cylinder as the drive cylinders stroke to push concrete. PAGE 20 — MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21)
  • Page 21 NOTES MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21) — PAGE 21...

  • Page 22: Components (Pump)

    COMPONENTS (PUMP) Figure 5. Pump Components PAGE 22 — MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21)
  • Page 23 ALWAYS keep hands clear of the shuttle cylinder during operation. MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21) — PAGE 23...
  • Page 24 COMPONENTS (PUMP) 20 21 OPTION: HYDRAULIC STABILIZER Figure 6. Pump Components (Continued) PAGE 24 — MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21)
  • Page 25 SAE 30 motor oil for first-time use. Also check the dual clean-out point on the bottom of the lubrication box for a secure, tight fit. MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21) — PAGE 25...

  • Page 26: Components (Digital Control Panel)

    LOCAL REMOTE FORWARD REVERSE CENTER 4000 1000 CYLINDER STROKE 5000 AUTOMATIC JOG “A” JOG “B” PUMPING REMOTE PRESSURE VIBRATOR RECEPTACLE Figure 7. Digital Control Panel Components PAGE 26 — MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21)
  • Page 27 The rightmost position (JOG) changes the pump from automatic to manual cycling. This allows the cylinders to be manually cycled using the manual cylinder jogging switch. MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21) — PAGE 27...
  • Page 28 SWING A SWING A OFF CIRCUIT IS OFF INDICATES MAIN A MAIN A OFF INDICATES CIRCUIT IS OFF MAIN B OFF MAIN B CIRCUIT IS OFF PAGE 28 — MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21)

  • Page 29: Components (Engine)

    5. Lifting Eyes — Located on either side of the engine. Used when the engine must be lifted for service. MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21) — PAGE 29...

  • Page 30: Inspection

    3. Check the air filter for dirt and dust. Replace the air Figure 9. Fuel Cap Gauge filter if it is excessively dirty. 4. Check fastening nuts and bolts for tightness. PAGE 30 — MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21)
  • Page 31 3. Reinsert the dipstick. 4. Pull out the dipstick and check the oil level (Figure 11). Figure 13. Engine Oil Filler Hole (Lower) DIPSTICK Figure 11. Engine Oil Dipstick MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21) — PAGE 31...
  • Page 32 NORMAL OIL LEVEL section. HYDRAULIC OIL TEMPERATURE COVER MINIMUM OIL LEVEL Figure 14. Hydraulic Oil Sight Glass Figure 16. Filling the Lubrication Box PAGE 32 — MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21)

  • Page 33: Setup

    3. Push down the rightmost control lever to extend the left hydraulic rear stabilizer. 4. Push up the rightmost control lever to retract the left Figure 18. Rear Stabilizer Jack hydraulic rear stabilizer. MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21) — PAGE 33...

  • Page 34: Operation

    In warm weather, let the engine warm up for 5 minutes. In cold weather, let the engine warm CENTER up for 10 minutes. Figure 23. Pumping Control Switch (OFF) PAGE 34 — MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21)
  • Page 35 3. A thumping sound (cylinder stroke) should be heard. hopper at this time. The thumping sound represents the number of strokes per minute (volume) of the pump. MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21) — PAGE 35...
  • Page 36 This rapid surge of material could cause the lines to whip or move in a manner that could cause injury to personnel. PAGE 36 — MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21)
  • Page 37 CONTROL BOX D IR F LO T IO S TA N IT “A ” “B ” REMOVE 2 SCREWS Figure 35. Removing the Control Box MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21) — PAGE 37...
  • Page 38 Screen 9 of the digital readout screen: Figure 39. Pumping Control Switch (Remote) Screen 9 RADIO ADDRESS NO RADIO PRESS RESET TO LEARN A NEW ONE PAGE 38 — MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21)
  • Page 39 CONNECTOR CONNECTOR Figure 41. Remote Control Cable Connect the remote control cable (Figure 41) to the receptacle labeled remote located on front of the digital panel. MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21) — PAGE 39...

  • Page 40: Maintenance

    If blowby hose needs to be replaced, ensure that the slope of the blowby hose is at least 1/2 inch per foot, with no sags or dips that could collect moisture and/or oil. PAGE 40 — MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21)
  • Page 41 DEATH. CAUTION ALWAYS allow the engine to cool before servicing. NEVER attempt any maintenance work on a hot engine. MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21) — PAGE 41...
  • Page 42 NEVER run the engine with the air cleaner removed or without an element. 6. Allow enough time for any added oil to make its way to the oil pan before rechecking the level. PAGE 42 — MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21)
  • Page 43 When adding coolant to the radiator, DO NOT remove the Figure 46. Oil Filter Removal radiator cap until the unit has completely cooled. Coolant capacity is approx. 3.4 gallons (13 liters). MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21) — PAGE 43...
  • Page 44 8. Lightly oil the gasket of the new fuel prefilter. Install the Figure 48. Radiator Cleaning filter and tighten it by hand. 9. Release the fuel feed line and connect the water level sensor cable. PAGE 44 — MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21)
  • Page 45 Replace the V-belt immediately if it exhibits any of the above Figure 51. Fuel Fine Filter wear conditions. MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21) — PAGE 45...
  • Page 46 „ ALWAYS check the battery for cracks or any other damage. If a white pattern appears inside the battery or paste has accumulated at the bottom, replace the battery. PAGE 46 — MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21)
  • Page 47 If a blockage exists, clear it. at approximately 1/3 throttle. 2. Pump concrete until the opening of the concrete cylinder intake in the hopper is visible. 3. Stop the pump. MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21) — PAGE 47...
  • Page 48 BUSHING AXLE CRANK SHUTTLE CYLINDER Figure 54. Lubrication Points NOTICE When lubricating the above components, use lithium-based EP, Texaco Multifak 20 or Lubriplate ED-2 type grease. PAGE 48 — MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21)
  • Page 49 DRAIN PLUG Figure 55. Cleaning the Lubrication Box MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21) — PAGE 49...
  • Page 50 „ The type of concrete being pumped. (volcano effect). It is time to replace the cups when increasingly large particles of sand and cement pass into the lubrication box. PAGE 50 — MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21)
  • Page 51 Torque all three bolts equally 4. Using an approved lifting device, remove the hopper at 55 lbf·ft each. using extreme care to not damage the hopper seal. MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21) — PAGE 51...
  • Page 52 8. Inspect the wear components for indications of wear. the JOG position. The wear plate has two wear surfaces. AUTOMATIC CENTER Figure 59. Cylinder Stroke Control Switch (JOG) PAGE 52 — MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21)
  • Page 53 CAUTION NEVER store the pump with fuel in the tank for an extended period of time. ALWAYS clean up spilled fuel immediately. MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21) — PAGE 53...

  • Page 54: Trailer Maintenance

    With drop-spindle axles, a modified adjusting tool with about an 80-degree angle should be used. Figure 63. Hydraulic Brake Actuator PAGE 54 — MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21)
  • Page 55 When replacing channel mounting hardware (nuts, bolts and washers), NEVER substitute with substandard hardware. Pay close attention to bolt length and grade. ALWAYS use manufacturer’s recommended parts when replacing channel mounting hardware. MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21) — PAGE 55...
  • Page 56 4. Check the adjustments. Both the hub and the spindle nut should be able to move freely. (The spindle nut motion will be limited by the cotter pin.) PAGE 56 — MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21)
  • Page 57 DANGER Check the suspension regularly. Worn or broken suspension parts can cause loss of control, damage to the equipment, and severe bodily injury or even DEATH! MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21) — PAGE 57...

  • Page 58: Trailer Guidelines

    „ Allow plenty of room for passing. A rule of thumb is that • Tires are not visibly low on pressure. the passing distance with a trailer is 4 times the passing distance without the trailer. PAGE 58 — MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21)
  • Page 59 Be sure your hitch and tow vehicle are rated for the The trailer VIN tag contains the critical safety information Gross Vehicle Weight Rating of your trailer. MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21) — PAGE 59...
  • Page 60 Also, before you start towing, adjust the mirrors so you can see the trailer as well as the area to the rear of it. PAGE 60 — MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21)
  • Page 61 ELECTRICAL CONNECTOR An Electrical Connector connects the light and brake systems on the trailer to the light and brake controls on the towing vehicle. MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21) — PAGE 61...
  • Page 62 Also, the ball size must be the same as the coupler size. If the hitch ball is too small, too large, is underrated, is loose PAGE 62 — MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21)
  • Page 63 „ Raise the jackstand to a height where it will not interfere „ The bottom surface of the coupler must be above the top with the road. of the hitch ball. Use the tongue jackstand to support MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21) — PAGE 63...
  • Page 64 Replace the breakaway brake battery (if equipped) at enough slack to permit turning and to hold tongue intervals specifi ed by manufacturer. up, if the trailer comes loose. PAGE 64 — MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21)
  • Page 65 MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21) — PAGE 65...
  • Page 66 Wood or concrete blocks by the hitch. may also be used. „ Raise the jackstand to a height where it will not interfere with the road. PAGE 66 — MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21)
  • Page 67 Tighten lug nuts before each tow. MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21) — PAGE 67...
  • Page 68 VIN (Certifi cation) label at the left front of the trailer „ Improve fuel economy. (See Figure I). „ Increase the tire life. PAGE 68 — MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21)
  • Page 69 You may not fi nd this information on all tires because it is put in the tire under normal driving conditions. not required by law. MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21) — PAGE 69...
  • Page 70 Max. Load Single kg (lbs) at kPa (psi) Cold: This a damaged tire before towing the trailer. information indicates the maximum load and tire pressure when the tire is used as a single. PAGE 70 — MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21)
  • Page 71 Most trailer axles are built with sealed bearings that are not serviceable. Sealed bearings must be replaced as complete units. MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21) — PAGE 71...
  • Page 72 Lights and Signals Before each tow, check the trailer taillights, stoplights, turn signals and any clearance lights for proper operation. Figure M. Trailer to Tow Vehicle Wiring Diagram PAGE 72 — MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21)

  • Page 73: Appendix - Concrete Mix Information

    This mix is designed for pumping NOTE: Due to the availability of well-graded sand as shown in the above sieve analysis, this mix pumped very successfully. MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21) — PAGE 73...
  • Page 74 APPENDIX — CONCRETE MIX INFORMATION A.S.T.M. STANDARD SPECIFICATION FOR GRADING AGGREGATE PAGE 74 — MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21)
  • Page 75 Distribute rodding evenly over the entire cross section of this layer. Figure S. Slump Test (Measurement) MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21) — PAGE 75...

  • Page 76: Troubleshooting (Pump)

    Concrete slurry in Worn or defective urethane cups or Replace lubrication box worn material cylinder Material cylinder piston Low on lubrication Check oil level cups squeal PAGE 76 — MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21)
  • Page 77 Inspect cylinder. Check values for cylinder rod side contamination or faulty spring Cylinders not completely extended (short stroke) Hydraulic cylinder piston head seal Replace seals leaking MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21) — PAGE 77...

  • Page 78: Troubleshooting (Engine)

    Correct engine oil level. Use No. 2-D diesel fuel only. Check the fuel Injection pump wear? injection pump element and delivery valve assembly and replace as necessary. PAGE 78 — MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21)

  • Page 79: Troubleshooting (Hydraulic Brakes)

    Break-away cable system partially cable until indicator bead touches or rests activated against cable spring stop. This will fully release the frame brakes and prevent drag. MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21) — PAGE 79...

  • Page 80: Troubleshooting (Electrical)

    Measure solenoid coil resistance. It should read 6 directly to ground. ohms. Replace shorted solenoid. Fuel solenoid shorted Wire connection is shorted directly to the Correct connection. ground. PAGE 80 — MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21)
  • Page 81 NOTES MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21) — PAGE 81...

  • Page 82: Component Locator (Hopper Vibrator Option)

    COMPONENT LOCATOR (HOPPER VIBRATOR OPTION) CONTROL BOX HOPPER PAGE 82 — MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21)

  • Page 83: Wiring Diagram (Hopper Vibrator Option)

    (REAR VIEW) P/N EM98066 CONNECT TO CHASSIS GND 30/51 FUSE NOT INCLUDED W/KIT NOTES: RELAY KIT FOR COMPLETE VIBRATOR KIT ORDER P/N EMDC400K. P/N 515799 INCLUDES SWITCH. MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21) — PAGE 83...

  • Page 84: Component Locator (Hydraulic System)

    COMPONENT LOCATOR (HYDRAULIC SYSTEM) PAGE 84 — MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21)

  • Page 85: Hydraulic System Diagram

    MOTOR RELIEF VALVE REMIX 1000 PSI DIRECTIONAL RETURN VALVE FILTER OPTIONAL AGITATOR AND HYDRAULIC OUTRIGGERS 14CC MAIN REMIX PUMP 5000 PSI PUMP PRESSURE GAUGE PUMP ACCUMULATOR MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21) — PAGE 85...

  • Page 86: Electrical Component Locator (Wiring Diag. #1)

    ELECTRICAL COMPONENT LOCATOR (WIRING DIAGRAM #1) CONTROL BOX SIDE VIEW PAGE 86 — MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21)

  • Page 87: Wiring Diagram #1 (External Control Box)

    BLACK 14 AWG YEL POTTED SOLENOID OUTSIDE INSIDE CONTROL CONTROL MAIN B CYLINDER REAR CONNECTIONS TO J1, J2 AND J6 RECEPTACLES ON DIGITAL CONTROL BOX (LS450) MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21) — PAGE 87...

  • Page 88: Electrical Component Locator (Wiring Diag. #2)

    ELECTRICAL COMPONENT LOCATOR (WIRING DIAGRAM #2) CONTROL BOX SIDE VIEW PAGE 88 — MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21)

  • Page 89: Wiring Diagram #2 (External Control Box)

    STOP FAN HEAT EX FAN INTERFACE WHEN POWER CRANKING CONNECTOR IGNITION (YELLOW) SWITCH +12 VDC CONNECTIONS TO J3, J4 AND J5 RECEPTACLES ON DIGITAL CONTROL BOX (LS450) MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21) — PAGE 89...
  • Page 90 © COPYRIGHT 2021, MULTIQUIP INC. Multiquip Inc , the MQ logo and the Mayco logo are registered trademarks of Multiquip Inc. and may not be used, reproduced, or altered without written permission. All other trademarks are the property of their respective owners and used with permission.

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