MULTIQUIP QP402B Operation Manual
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MULTIQUIP QP402B Operation Manual

MULTIQUIP QP402B Operation Manual

Centrifugal pump
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OPERATION MANUAL
MODEL
QP402B
CENTRIFUGAL PUMP
(VANGUARD 19L2 10.0 HP GASOLINE ENGINE)
Revision #0 (05/15/23)
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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Summary of Contents for MULTIQUIP QP402B

  • Page 1 OPERATION MANUAL MODEL QP402B CENTRIFUGAL PUMP (VANGUARD 19L2 10.0 HP GASOLINE ENGINE) Revision #0 (05/15/23) 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 — QP402B CENTRIFUGAL PUMP • OPERATION MANUAL — REV. #0 (05/15/23)

  • Page 3: Table Of Contents

    Components (Engine) ..........14 Inspection .............. 15 Setup ..............16 Operation ............17–19 Maintenance (Engine) ........20–22 Maintenance (Pump) ........24–26 Troubleshooting (Engine) ........27 Troubleshooting (Pump) ........28 QP402B CENTRIFUGAL PUMP • OPERATION MANUAL — REV. #0 (05/15/23)— PAGE 3...

  • Page 4: Safety Information

    COULD result in DEATH or SERIOUS INJURY. CAUTION Indicates a hazardous situation which, if not avoided, COULD result in MINOR or MODERATE INJURY. NOTICE Addresses practices not related to personal injury. PAGE 4 — QP402B CENTRIFUGAL PUMP • OPERATION MANUAL — REV. #0 (05/15/23)
  • Page 5 Disconnection of any of these of the nearest ambulance, doctor and fi re department. devices will void all warranties. This information will be invaluable in the case of an emergency. QP402B CENTRIFUGAL PUMP • OPERATION MANUAL — REV. #0 (05/15/23)— PAGE 5...
  • Page 6 „ DO NOT overfi ll the tank, as spilled fuel can ignite if it muffl er or cylinder. Allow these parts to cool comes into contact with hot engine parts or sparks from before servicing the equipment. the ignition system. PAGE 6 — QP402B CENTRIFUGAL PUMP • OPERATION MANUAL — REV. #0 (05/15/23)
  • Page 7 „ DO NOT lift the machine to unnecessary heights. seek medical attention. QP402B CENTRIFUGAL PUMP • OPERATION MANUAL — REV. #0 (05/15/23)— PAGE 7...
  • Page 8 Recyclers and manufacturers alike promote the process of recycling metal. Using a metal-recycling center promotes energy cost savings. PAGE 8 — QP402B CENTRIFUGAL PUMP • OPERATION MANUAL — REV. #0 (05/15/23)

  • Page 9: Specifications

    43.3 psi (299 kPa) Dry Net Weight 139 lb. (63 kg) Figure 1. QP402B Dimensions Table 2. QP402B Dimensions Reference Dimension Letter in. (mm) 23.94 (608) 19.49 (495) 27.32 (694) QP402B CENTRIFUGAL PUMP • OPERATION MANUAL — REV. #0 (05/15/23)— PAGE 9...
  • Page 10 Discharge Line : 4 inch TOTAL HEAD METERS FEET 23.3 FT 16.7 FT 10 FT 3.3 FT U.S. GALLONS PER MINUTE LITERS 1000 1500 PER MINUTE Figure 2. QP402B Performance Curve PAGE 10 — QP402B CENTRIFUGAL PUMP • OPERATION MANUAL — REV. #0 (05/15/23)

  • Page 11: General Information

    Multiquip offers a complete line of fittings, hoses, and couplers for various pump applications. Contact the Multiquip Parts Department for more information. QP402B CENTRIFUGAL PUMP • OPERATION MANUAL — REV. #0 (05/15/23)— PAGE 11...

  • Page 12: Components (Pump)

    The main pump components are listed below. NOTE: CONTACT YOUR NEAREST MULTIQUIP DEALER FOR QUICK-DISCONNECT HOSES AND FITTINGS. Figure 3. Pump Components NOTICE This pump is intended for the removal of clean water. PAGE 12 — QP402B CENTRIFUGAL PUMP • OPERATION MANUAL — REV. #0 (05/15/23)
  • Page 13 PVC helix and are specifically designed to prevent collapse during operation. Use recommended suction hoses only. MAKE SURE the suction hose remains unkinked. Contact the Multiquip Parts Department for ordering information. QP402B CENTRIFUGAL PUMP • OPERATION MANUAL — REV. #0 (05/15/23)— PAGE 13...

  • Page 14: Components (Engine)

    10. Choke Lever — Aids in starting a cold engine or starting in cold weather conditions. The choke enriches the fuel mixture. 11. Throttle Lever — Adjusts engine speed (RPM). PAGE 14 — QP402B CENTRIFUGAL PUMP • OPERATION MANUAL — REV. #0 (05/15/23)

  • Page 15: Inspection

    4. If the oil level is low (Figure 6), fill to the edge of the oil filler hole with the recommended oil type (Table 6). Maximum oil capacity is 0.85 quarts (0.80 liters). QP402B CENTRIFUGAL PUMP • OPERATION MANUAL — REV. #0 (05/15/23)— PAGE 15...

  • Page 16: Setup

    Continued operation of the pump in this condition is not recommended, and can cause severe water damage to the engine. Figure 7. Pump Setup PAGE 16 — QP402B CENTRIFUGAL PUMP • OPERATION MANUAL — REV. #0 (05/15/23)

  • Page 17: Operation

    NEVER attempt to start the engine unless the pump has first been primed with water. Severe damage will occur to the pump’s mechanical seal if the pump has not been primed. Figure 9. Throttle Lever (Idle) QP402B CENTRIFUGAL PUMP • OPERATION MANUAL — REV. #0 (05/15/23)— PAGE 17...
  • Page 18 6. If the engine has started, slowly return the choke lever to the OPEN position (Figure 11) as the engine warms. If the engine has not started, repeat steps 1–5. PAGE 18 — QP402B CENTRIFUGAL PUMP • OPERATION MANUAL — REV. #0 (05/15/23)
  • Page 19 OFF position (Figure 15). FUEL VALVE LEVER Figure 15. Engine Fuel Valve Lever (OFF) NOTICE When transporting the pump, ALWAYS place the engine fuel valve lever in the OFF position. QP402B CENTRIFUGAL PUMP • OPERATION MANUAL — REV. #0 (05/15/23)— PAGE 19...

  • Page 20: Maintenance (Engine)

    Replace (1) In dusty conditions or when airborne debris is present, clean more often. (2) For commercial use, log hours of operation to determine proper maintenance intervals. PAGE 20 — QP402B CENTRIFUGAL PUMP • OPERATION MANUAL — REV. #0 (05/15/23)
  • Page 21 7. Reinstall the air cleaner cover and secure with the components can allow unfiltered air into the engine, fastener. Make sure the fastener is tight. causing premature wear and failure. QP402B CENTRIFUGAL PUMP • OPERATION MANUAL — REV. #0 (05/15/23)— PAGE 21...
  • Page 22 6. After adding oil, wait one minute and then check the oil level. 7. Reinstall the oil filler cap/dipstick and reconnect the spark plug wire to the spark plug. PAGE 22 — QP402B CENTRIFUGAL PUMP • OPERATION MANUAL — REV. #0 (05/15/23)
  • Page 23 NOTES QP402B CENTRIFUGAL PUMP • OPERATION MANUAL — REV. #0 (05/15/23)— PAGE 23...

  • Page 24: Maintenance (Pump)

    This prevents backflow and allows for faster priming when the engine is restarted. PAGE 24 — QP402B CENTRIFUGAL PUMP • OPERATION MANUAL — REV. #0 (05/15/23)
  • Page 25 INTO 25 FEET OF LIFT SHOULD BE BETWEEN -100 AT SEA LEVEL. -25 AND -20 IN. HG. in. Hg WIKA PUMP VACUUM TESTER Figure 19. Pump Vacuum Test QP402B CENTRIFUGAL PUMP • OPERATION MANUAL — REV. #0 (05/15/23)— PAGE 25...
  • Page 26 „ Cover the pump and engine with a plastic sheet and store them out of direct sunlight, in a location that is free of moisture and dust. PAGE 26 — QP402B CENTRIFUGAL PUMP • OPERATION MANUAL — REV. #0 (05/15/23)

  • Page 27: Troubleshooting (Engine)

    Check fuel line. Air taken in through suction line? Check suction line. Dust in rotating part? Clean recoil starter assembly. Recoil starter not working properly. Spring failure? Replace spiral spring. QP402B CENTRIFUGAL PUMP • OPERATION MANUAL — REV. #0 (05/15/23)— PAGE 27...

  • Page 28: Troubleshooting (Pump)

    Impeller does not turn, pump Adjust clearance by removing shim from Impeller and volute binding? is hard to start. behind impeller. Defective engine? See engine owner’s manual. PAGE 28 — QP402B CENTRIFUGAL PUMP • OPERATION MANUAL — REV. #0 (05/15/23)
  • Page 29 NOTES QP402B CENTRIFUGAL PUMP • OPERATION MANUAL — REV. #0 (05/15/23)— PAGE 29...
  • Page 30 © COPYRIGHT 2023, MULTIQUIP INC. Multiquip Inc , the MQ 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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