MULTIQUIP QP303B Operation Manual
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MULTIQUIP QP303B Operation Manual

MULTIQUIP QP303B Operation Manual

Centrifugal pump
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OPERATION MANUAL
MODEL
QP303B
CENTRIFUGAL PUMP
(VANGUARD 160 5.0 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 QP303B

  • Page 1 OPERATION MANUAL MODEL QP303B CENTRIFUGAL PUMP (VANGUARD 160 5.0 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 — QP303B 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 QP303B 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 — QP303B 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. QP303B 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 — QP303B CENTRIFUGAL PUMP • OPERATION MANUAL — REV. #0 (05/15/23)
  • Page 7 „ DO NOT lift the machine to unnecessary heights. seek medical attention. QP303B 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 — QP303B CENTRIFUGAL PUMP • OPERATION MANUAL — REV. #0 (05/15/23)

  • Page 9: Specifications

    105 ft. (32.0 m) Dry Net Weight 79.4 lb. (36 kg) Figure 1. QP303B Dimensions Table 2. QP303B Dimensions Reference Dimension Letter in. (mm) 18.11 (460) 16.30 (414) 20.71 (526) QP303B CENTRIFUGAL PUMP • OPERATION MANUAL — REV. #0 (05/15/23)— PAGE 9...
  • Page 10 Discharge Line : 3 inch TOTAL HEAD METERS FEET 23.3 FT 16.7 FT 10 FT 3.3 FT U.S. GALLONS PER MINUTE LITERS 1000 PER MINUTE Figure 2. QP303B Performance Curve PAGE 10 — QP303B 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. QP303B CENTRIFUGAL PUMP • OPERATION MANUAL — REV. #0 (05/15/23)— PAGE 11...

  • Page 12: Components (Pump)

    Figure 3 shows a typical QP303B centrifugal pump application. The main pump components are listed below. Figure 3. Pump Components NOTICE This pump is intended for the removal of clean water. PAGE 12 — QP303B 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. QP303B CENTRIFUGAL PUMP • OPERATION MANUAL — REV. #0 (05/15/23)— PAGE 13...

  • Page 14: Components (Engine)

    11. Choke Lever — Aids in starting a cold engine or once a week. starting in cold weather conditions. The choke enriches the fuel mixture. 5. Throttle Lever — Adjusts engine speed (RPM). PAGE 14 — QP303B CENTRIFUGAL PUMP • OPERATION MANUAL — REV. #0 (05/15/23)

  • Page 15: Inspection

    (Figure 5). The NEVER top off fuel. ALWAYS wipe up any spilled fuel correct oil level is at the top of the full indicator on the immediately. dipstick. QP303B 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 — QP303B CENTRIFUGAL PUMP • OPERATION MANUAL — REV. #0 (05/15/23)

  • Page 17: Operation

    Severe damage will LEVER occur to the pump’s mechanical seal if the pump has not been primed. CLOSE OPEN Figure 9. Choke Lever (Closed) QP303B CENTRIFUGAL PUMP • OPERATION MANUAL — REV. #0 (05/15/23)— PAGE 17...
  • Page 18 If the engine has not started, repeat steps 1–5. 6. Run the engine at idle for several minutes and check for any abnormal conditions such as extreme vibration, loose components, or fluid leaks. PAGE 18 — QP303B CENTRIFUGAL PUMP • OPERATION MANUAL — REV. #0 (05/15/23)
  • Page 19 Figure 14. Engine Throttle Lever (OFF) NOTICE When transporting the pump, ALWAYS turn off the engine fuel valve by placing the engine throttle lever in the OFF position. QP303B CENTRIFUGAL PUMP • OPERATION MANUAL — REV. #0 (05/15/23)— PAGE 19...

  • Page 20: Maintenance (Engine)

    (1) In dusty conditions or when airborne debris is present, clean more often. (2) Not required unless engine performance problems are noted. (3) For commercial use, log hours of operation to determine proper maintenance intervals. PAGE 20 — QP303B CENTRIFUGAL PUMP • OPERATION MANUAL — REV. #0 (05/15/23)
  • Page 21 NOTICE Operating the engine with loose or damaged air cleaner components can allow unfiltered air into the engine, causing premature wear and failure. QP303B CENTRIFUGAL PUMP • OPERATION MANUAL — REV. #0 (05/15/23)— PAGE 21...
  • Page 22 Table 6. Maximum engine oil capacity is 0.63 quarts (0.6 liters). DO NOT overfill. 6. After adding oil, wait one minute and then check the oil level. PAGE 22 — QP303B CENTRIFUGAL PUMP • OPERATION MANUAL — REV. #0 (05/15/23)
  • Page 23 NOTES QP303B CENTRIFUGAL PUMP • OPERATION MANUAL — REV. #0 (05/15/23)— PAGE 23...

  • Page 24: Maintenance (Pump)

    A gauge reading below 20 inHg indicates that the pump is not working properly. NOTICE 25 inHg (inches of mercury) translates into 25 feet of suction lift at sea level. PAGE 24 — QP303B 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 QP303B 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 — QP303B 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. QP303B 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 — QP303B CENTRIFUGAL PUMP • OPERATION MANUAL — REV. #0 (05/15/23)
  • Page 29 NOTES QP303B 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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