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  5. Operation Instructions Manual

Waterous PB18 Series Operation Instructions Manual

Manual is about: Portable Pumps

Summary of PB18 Series

  • Page 1

    Read through the safety information and operating instructions carefully before using your waterous fire pump. Table of contents safety instructions 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Warning and operating decals 4 . . . . . . . . . . . . . . . . . . . . . . . Prep...

  • Page 2

    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. D...

  • Page 3

    Safety instructions page 2 of 20 warning ! Scalding water hazard. May result in serious burns. When operating the pump, be sure to open at least one discharge valve slightly to prevent the pump from overheating. If the pump runs for a few minutes completely closed, it may heat the water enough to sc...

  • 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 equipp...

  • Page 5

    Warning labels page 4 of 20 figure 1. Warning labels il2366.

  • Page 6

    Preparation before operation page 5 of 20 figure 2. Preparation before operation operator panel fuel fill connect discharge hose close pump drain connect intake hose (drain behind rail).

  • Page 7

    Operation controls page 6 of 20 figure 3. Operation controls pump drain (located at bottom of volute) low oil pressure indicator engine speed control (throttle) fuse panel light switch ignition switch (off-run-st art) discharge pressure auxiliary 12 vdc power connection intake pressure panel light f...

  • Page 8

    Operation and maintenance page 7 of 20 preparation before operation (see figure 2) symbols this safety alert symbol indicates that this message involves personal safety. Words danger, warning and caution indicated de‐ gree of hazard. Death, personal injury and/‐ or property damage may occur unless i...

  • Page 9

    Operation and maintenance page 8 of 20 6. Return the priming lever to the “run” position. 7. Open the discharge valve if so equipped. When a pb18 pump is used from draft in below freezing weather, the following shut-down procedure should be used: 1. When pumping is completed and discharge hose dis‐ ...

  • Page 10

    Operation and maintenance page 9 of 20 after pumping (see “pumping from tank” above) pumping from draft note: to get full capacity, quick prime and maintain pump efficiency: a.) position truck as near as possible to water supply. B.) avoid humps or sharp bends in intake hose. Make sure no part of ho...

  • Page 11

    1. Disconnect any intake and discharge piping. It 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. Overhaul - direct mounted pump page 10 of 20 il2365 figure 3. Priming tube removal il13...

  • Page 12

    5. Remove the socket head cap screw and washer holding the impeller to the en‐ gine crankshaft. 6. If the impeller does not pull off the shaft easily, 1/4-20 puller holes are provided in the impeller to assist in removal. Be sure to protect the tapped hole in the shaft when using any type of puller....

  • Page 13

    Copper washer, 3/8 in. Socket hd screw, mechanical seal 3/8-16 x 2 in. O-ring shaft sleeve engine adapter assembly o-ring stationary seal ring 9. Remove the (4) socket head cap screws and wash‐ ers holding the engine adapter to the engine. 10. Remove the engine adapter. 11. Press out the mechanical ...

  • Page 14

    Overhaul - geared pump page 13 of 20 il2360 1. Remove (4) hex head screws from the pump volute body. Slide the volute body off the gear case cover. Wear ring will come off with volute. Remove if re‐ quired. The muffler and control panel assembly is shown removed for clarity. Hex nut, 7/16-20 lock wa...

  • Page 15

    Oil seal stationary ring o-ring hex hd screw, gear case cover gear case gasket lock washer, wear ring 3/8-16 x 1 in. 3/8 in. Impeller shaft and bearing assembly impeller gasket (used after 09/08/04) il2362 1. Remove the impeller gasket. 2. Remove the (10) hex head screws and lock washers from the ge...

  • Page 16

    Il1323 drive gear square key, 1/4 x 1 in. Washer hex hd screw, 3/8-24 x 1-1/8 in. 8. Remove the hex head screw and washers that hold the drive gear to the engine crankshaft. 9. Pull the drive gear off the shaft. 10. Remove the key. Overhaul - geared pump page 15 of 20 caution do not damage the inter...

  • Page 17

    Il2266 overhaul - geared pump page 16 of 20 figure 14. Mechanical seal assembly - geared pump sealing surface chamfered edge primary ring stationary ring o-ring bellows assembly impeller gasket nord-lock r washer (see detail a).

  • Page 18

    Inspection page 17 of 20 after the pump has been disassembled, check the following before reassembly: impeller wear 1. Check the wear hubs on the impeller for excessive wear, or clearance with the wear rings. If the clear‐ ance exceeds 0.020/0.025in., or if the impeller hubs are badly scored or groo...

  • Page 19

    Reassembling and testing pump page 18 of 20 reassembling the pump is basically the reverse of disas‐ sembly. The following guidelines will help in reassembly. 1. Check the engine crankshaft for any corrosion deposits that will interfere with seating and sealing of the shaft sleeve. 2. Lubricate all ...

  • Page 20

    Troubleshooting page 19 of 20 condition possible cause suggested remedy pump fails to prime or loses prime priming line petcock closed open the priming line petcock at the suction inlet of the pump body when priming. Air leaks clean and tighten all intake connections. Make sure intake hoses and gask...

  • Page 21

    Troubleshooting page 20 of 20 condition possible cause suggested remedy insufficient capacity insufficient engine power engine requires maintenance. Check engine in accordance with manufacturer's instruction. Pump impeller or wear rings badly worn check the wear hubs on the impeller for excessive we...

  • 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.