Clean Inlet Filter .................................................................................................................................................................. 25
Check Tire Pressure ........................................................................................................................................................... 25
Change Pump Oil ................................................................................................................................................................ 26
TROUBLESHOOTING ................................................................................................................................................ 27
PUMP ASSEMBLIES .................................................................................................................................................. 30
PUMP EXPLODED VIEW - 4DNX .............................................................................................................................. 33
PUMP EXPLODED VIEW - 4SPX .............................................................................................................................. 34
LIMITED WARRANTY ................................................................................................................................................ 36
3