01/2015 1BB-4-18/23 Quick GuideThis Quick Guide shows the basic operation of theWATERAX BB-4-18/23 4-stage high pressure pump. The WATERAX BB-4 pump model pairs a WATERAX 4-stage pump end with a Briggs & Stratton Vanguard 18HP or 23 HP gasoline engine. For engine instructions,oil and fuel recommendations, please refer to the enginemanufacturer’s manual. For detailed instructions on using and troubleshootingyour pump, as well as full service and maintenanceinstructions, refer to our website to download theBB-4 Owner’s Manual. For full specifications and performance curves, see theBB-4-18 or BB-4-23 Data Sheets.Warnings and Safety PrecautionsThis warning label appears on all WATERAX pumps to identify safetyhazards as follows:READ YOUR ENGINE MANUAL!Before proceeding further, locate and read the enginemanufacturer’s manual. It contains very important safetyinformation that MUST be read, understood and followed tosafeguard you and your equipment from harm, as well as forthe proper use and care of your engine. Use only fuel and oiltype recommended in the engine manufacturer’s manual.Always check oil level in crankcase before use.WEAR EAR AND EYE PROTECTION.Always wear eye and ear protection when operating thepump unit. Sound level of the unit: 99 dB(A).GENERAL WARNINGS: Do not operate if mentally/physically fatigued. Inspect hoses and piping to avoid burst injuries. No modifications and/or alterations may be made to thepump. Any such modifications void the pump warrantyand can endanger pump operators. Do not operate the pump above the maximum ratedpressure. Use only pipe, hose, and fittings rated at orabove the maximum pressure rating of the pump orsystem design. Slowly close valves. Use slow close valves whereverpossible to safeguard operators and prevent damagefrom water hammer. Dry weight of the unit: 164 lbs (will vary depending onoptions).READ THE PUMP OWNER’S MANUAL!The improper use of this pump could result in serious injuriesas well as damage to the unit. Read the BB-4 Owner’sManual before using your BB-4 pump unit and follow thesafety instructions in this Quick Guide.NEVER RUN THE ENGINE IN A CLOSEDOR CONFINED AREA. Exhaust gas containscarbon monoxide which is poisonous to humans.Avoid inhalation of exhaust gas.REFUEL ENGINE WITH CARE. Gasoline isextremely flammable, and gasoline vapor canexplode. Refuel in a well-ventilated area, with theengine stopped.NEVER TOUCH ANY EXHAUST SYSTEMPARTS WHILE ENGINE IS RUNNING. Alwaysallow enough time, after stopping the unit, for propercooling of the muffler and surrounding parts.EQUIPMENT DAMAGE PREVENTION: Flush the pump with fresh water if the pump has beenused to pump salty, brackish, high mineral contentwater, water containing debris, or foam injected water.Check that debris is cleared before using the pumpagain. Always draft water using a suction hose strainer.