North Star 157305 Owner's Manual

Also see for 157305: Installation, operation and maintenance manual Installation, operation and maintenance manual Owner's manual Installation, operation and maintenance manual Instructions for setup

MEI 10-9-12 713. Pump: A mechanical device that moves andpressurizes fluid. [Pump oil must be changed afterfirst 40 hours of use, and then changed every threemonths or 500 hours of use. See “Maintenance andRepair” section for pump oil change instructionsand recommendations.]14. Gun Hooks: Spray gun storage location.15. Power Switch: Flip up for on.16. Thermostat: Controls power to fuel solenoid forfiring.17. Control Panel: Power Switch (Reference 15),Thermostat (Reference 16) and Nozzle Storage(Reference 18) are located on control panel.18. Nozzle Storage: Control Panel (Reference 17) hasspace for storing nozzles.19. Fuel Filter/Water Separator: Filter in fuel line thatremoves water and screens out dirt and debris fromfuel.20. Quick Connector: Connection point on spray gunfor high pressure hose.21. Spray Gun: Pressurized water is discharged.22. Grip: Protected area on spray gun for additionalhold.23. Lance Wand: Unprotected area on spray gun.24. Power Cord Hangers: Storage location.25. High Pressure Hose Hanger: Storage location.26. Garden Hose Water Inlet: Connection point forstandard garden hose. Garden hoses less than100’ in length must have a minimum inner diameterof 5/8.” Garden hoses over 100’ in length musthave a minimum inner diameter of 3/4.”Note: See “Parts Explosion” for additional detail.Special Equipment Safety FeaturesThis unit is equipped with the following safety features:High Pressure Relief ValveActs as a backup safety feature. If the Pressure ControlValve (Unloader) malfunctions, this separate high-pressure relief valve will open and relieve excesssystem pressure. Repair is required.WARNING: Relief valve failureIf the high-pressure relief valve ever discharges water,turn the unit off and do not use the machine. CallProduct Support at 1-800-270-0810.Temperature Control SwitchMeasures water temperature and automatically turnsburner off when temperature setting is reached. Whenwater temperature drops, burner automatically reignites.Figure 1Pump Thermal Relief ValveThis valve, on the Unloader bypass port, protects thepump from overheating. The pump continues to work inbypass mode when you are not spraying. If hightemperatures are developed during bypass mode, theThermal Relief Valve will open and discharge hot wateronto the ground, protecting the pump from overheating.Note: One of two pumps will be on your machine.Figure 2Spray Gun Safety LatchHas a built-in trigger safety latch to guard againstaccidental trigger actuation.Figure 3High PressureRelief ValveNote: Shield notshown for clarityPumpThermalrelief valveCat pump Cometpump00417Safety Latch