Waterous PB18 Series Operation Instructions Manual
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Waterous PB18 Series Operation Instructions Manual

Portable pumps
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PB18 Series
Portable Pumps
Read through the safety information and
operating instructions carefully before
using your Waterous Fire Pump.
All content in this instruction is property of the Waterous Company. Instructions subject to change without
Waterous Company 125 Hardman Avenue South, South St. Paul, Minnesota 55075 USA (651) 450-5000
Instructions subject to change without notice.
Operation, Maintenance
and Overhaul Instructions
Form No.
F-2523

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Visit us at www.waterousco.com
Issue Date
Rev. Date
09/04
05/08/12
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Summary of Contents for Waterous PB18 Series

  • Page 1: Table Of Contents

    ........All content in this instruction is property of the Waterous Company. Instructions subject to change without Visit us at www.waterousco.com...

  • Page 2: Safety Instructions

    SAFETY INSTRUCTIONS Page 1 of 20 The PB18 Series Portable Pump is designed and intended for use as portable firefighting equipment. DANGER Exhaust gas hazard. Can cause illness or death. Do not run the engine in an enclosed area. Exhaust gases contain carbon monoxide, an odorless, deadly poison.
  • Page 3 Do not run the pump dry for any extended period of time to prevent the pump from overheating. IMPORTANT NOTES: 1. Ambient operating temperature range: -18_F to 118_F (-28_C to 48_C) 2. Maximum sound pressure level: 94 dBa @ 1.5 meters 3. The PB18 Series Portable Pumps are designed to be carried by two or more people.
  • Page 4 SAFETY INSTRUCTIONS Page 3 of 20 WARNING Accidental starting hazard. May cause personal injury to the hand, arm or feet. Prevent accidental starting by removing the spark plug wire and grounding it when servicing the engine or equipment. Disconnect negative wire from the battery terminal if equipped with electric starting system. WARNING Excessive speed notice.

  • Page 5: Warning And Operating Decals

    WARNING LABELS Page 4 of 20 Figure 1. Warning Labels IL2366...

  • Page 6: Preparation Before Operation

    PREPARATION BEFORE OPERATION Page 5 of 20 Figure 2. Preparation Before Operation Operator Panel Fuel Fill Connect Intake Hose Connect Discharge Hose Close Pump Drain (Drain behind rail)

  • Page 7: Operation Controls

    Engine Speed Control Fuel Fill (Throttle) Panel Light Switch Panel Light Low Oil Ignition Switch Pressure Indicator Priming Knob (OFF-RUN-ST ART) Intake Pressure Discharge Pressure Auxiliary 12 VDC Power Connection Mating Connector: SwitchcraftR EN3C2F16C (Not Furnished by Waterous Company) IL2366...

  • Page 8: Operation And Maintenance

    Maintenance Instructions. position and adjust the throttle as required. 5. Fill engine with oil per Briggs & Stratton instructions. The PB18 Series Portable Pumps use Briggs & Strat‐ Priming the Pump ton Model 350477 Series engines. The PB18 Series utilize an exhaust primer.

  • Page 9: Operating The Pump

    OPERATION AND MAINTENANCE Page 8 of 20 6. Return the priming lever to the “RUN” position. Pumping from Water Tank 7. Open the discharge valve if so equipped. 1. Open valves in piping between water tank and pump intake, and the discharge valve. When a PB18 pump is used from draft in below freezing weather, the following shut-down procedure should be 2.

  • Page 10: Pumping From Draft

    ENGINE AND PUMP REPAIR Repairs to be done during the Waterous or Briggs and Pump Repair Stratton warranty period must be done in accordance with Pump repair should be done by Waterous authorized ser‐...

  • Page 11: Overhaul Instructions - Direct Mounted Pump

    OVERHAUL - DIRECT MOUNTED PUMP Page 10 of 20 Figure 3. Priming Tube Removal 1. Disconnect any intake and discharge piping. It IL2365 may not be necessary to remove intake or dis‐ charge adapters or discharge valve. 2. Disconnect the tube that attaches the priming valve to the inlet of the pump.

  • Page 12: Impeller Removal

    OVERHAUL - DIRECT MOUNTED PUMP Page 11 of 20 Figure 5. Impeller Removal Square Key, 1/4 x 3/4 in. SS Impeller Socket Hd Screw, 3/8-24 x 1 in. 5. Remove the socket head cap screw and washer holding the impeller to the en‐ gine crankshaft.

  • Page 13: Engine Adapter Assembly Removal

    OVERHAUL - DIRECT MOUNTED PUMP Page 12 of 20 Figure 7. Engine Adapter Assembly Removal O-ring Copper Washer, 3/8 in. Socket Hd Screw, 3/8-16 x 2 in. Mechanical Seal Stationary Seal Ring IL1318 Shaft Sleeve Engine Adapter Assembly O-ring 9. Remove the (4) socket head cap screws and wash‐ ers holding the engine adapter to the engine.

  • Page 14: Overhaul Instructions - Geared Pump

    OVERHAUL - GEARED PUMP Page 13 of 20 Figure 8. Volute Body Removal - Geared Pump Hex Nut, 7/16-20 Lock Washer, 7/16 in. The muffler and control panel assembly is shown removed for clarity. Hex Hd Screw, 7/16-20 x 2-3/4 in. Hex Hd Screw, 7/16-20 x 3 in.

  • Page 15: Gear Case Cover Removal

    OVERHAUL - GEARED PUMP Page 14 of 20 Gear Case Cover Figure 10. Gear Case Cover Removal 1. Remove the impeller gasket. Gear Case Gasket 2. Remove the (10) hex head screws and lock washers from the gear case cover. Oil Seal 3.

  • Page 16: Drive Gear Removal

    OVERHAUL - GEARED PUMP Page 15 of 20 Figure 12. Drive Gear Removal Drive Gear Square Key, 1/4 x 1 in. 8. Remove the hex head screw and washers that hold the drive gear to the engine crankshaft. IL1323 9. Pull the drive gear off the shaft. CAUTION Do not damage the internal thread of the shaft.

  • Page 17: Mechanical Seal Assembly

    OVERHAUL - GEARED PUMP Page 16 of 20 Figure 14. Mechanical Seal Assembly - Geared Pump Nord-Lock R Washer Sealing (see Detail A) Surface Chamfered Edge Primary Ring Impeller Gasket Stationary Ring O-Ring Bellows Assembly IL2266...

  • Page 18: Inspection

    Note: If Waterous Mechanical Seal Lubricant part no. 52608 is not available, P80 rubber lubricant, straight dish soap or glycerin may be substi‐...

  • Page 19: Reassembling And Testing Pump

    Before installing an oil seal in a housing, apply a thin on the gear case and replace the ten hex head screws coat of sealant to housing oil seal seat. (Waterous and lock washers. recommends Loctite Ultra Blue RTV Silicon Sealant to Install the impeller gasket.

  • Page 20: Troubleshooting

    TROUBLESHOOTING Page 19 of 20 POSSIBLE CONDITION SUGGESTED REMEDY CAUSE Priming line Open the priming line petcock at the suction inlet of the pump body when priming. petcock closed Clean and tighten all intake connections. Make sure intake hoses and gaskets are in good condition.
  • Page 21 TROUBLESHOOTING Page 20 of 20 POSSIBLE CONDITION SUGGESTED REMEDY CAUSE Insufficient Engine requires maintenance. Check engine in accordance with manufacturer's engine power instruction. Pump impeller Check the wear hubs on the impeller for excessive wear, or clearance with the wear or wear rings rings.
  • Page 22 WATEROUS COMPANY 125 HARDMAN AVENUE SOUTH SOUTH ST. PAUL, MINNESOTA 55075-2456 U.S.A. Phone: (651) 450-5000 FAX: (651) 450-5090 Web Site: www.waterousco.com...

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