-Different chemicals may interact dangerously with each other, always follow chemical manufacturer directions before switching chemicals. -Calculate the correct amount of chemical to mix, dispose of excess chemical per the manufacturer instructions. -Never spray flammable liquids. WARNING strainer diluted chemical pump inlet pump outlet pump 10 Maintenance and Storage Maintenance Mode Before performing any maintenance on the pressure washer, it must be placed in maintenance mode. 1.) Turn off engine. 2.) Turn off water supply. 3.) Squeeze trigger to relieve system pressure. 4.) Shut off fuel valve. 5.) Unplug spark plug wire from spark plug, (see engine owners’ manual). Maintenance Schedule What to Check When To Check What to Do Inlet Filter Each Use Visually inspect and clean inlet filter with clear water. Pressure Hose Each Use Visually inspect pressure hose and hose couplings. Replace hose if any of the following is evident: hose coupling is damaged, wire mesh is exposed or damaged, hose is permanently kinked or flattened, outer hose cover is blistered or loose. Bolts Each Use Tighten any loose bolts. Engine Oil See engine manual See engine manual for oil change instructions Pump Oil After 1st 50hrs, then 3mo/500hr Change pump oil. See pump oil change instructions on next page. Maintenance and Storage Maintenance and Storage Pump Oil Change 1.) Place a suitable container below the pump to catch the used oil, then remove the oil fill cap and oil drain plug. 2.) Allow the used oil to drain completely, then reinstall the drain plug and tighten securely. 3.) Please dispose of used oil in a manner that is compatible with the environment. We suggest you take used oil in a sealed container to your local recycling center or service station for reclamation. Do not throw it in the trash, pour it on the ground or down the drain. 4.) With the pump in a level position, fill to the half way point on the oil sight glass (see pump oil capacities below). For Comet or NorthStar pumps use Universal Tractor Transmission Oil or Mobil1 synthetic oil (15W50). For Cat pumps use SAE30 non-detergent oil or Cat Pump Oil Item# 22158. 11 Maintenance and Storage Maintenance and Storage Long Term Storage Follow the engine owner’s manual for storing the engine. Winter Storage Protect your pump, hose, and gun from freezing. Items needed: 12” piece of garden hose or equivalent, funnel and RV antifreeze (approximately 6 oz.) 1.) Follow the storage instructions listed above. 2.) Disconnect spark plug cable. Make sure the engine start switch is OFF, and the fuel valve is OFF. 3.) Attach the garden hose with funnel to the pump inlet (see illustration). 4.) Pour RV antifreeze into the funnel, pull the engine recoil until antifreeze comes out the pump outlet. 5.) Drain all water from the high pressure hose. Depress trigger on gun and drain all water out of gun/lance. RV Antifreeze Funnel Hose Water Inlet 12 Troubleshooting Problem Engine will not start SOLUTION: A,B Low/Surging pressure or no water flow SOLUTION: C,D,E,F,G,H No chemical injection SOLUTION: I,J,K,L Cause Solution A-Low oil shutdown See engine manual for oil requirements B-Engine starting instructions not followed See engine manual for starting instructions C-Insufficient water supply See water supply section of this manual D-Plugged pump inlet filter See maintenance section of this manual E-Wrong nozzle Make sure high pressure nozzle is being used F-Plugged nozzle Remove nozzle, check for blockage G-Worn nozzle Replace nozzle H-Leak in pressure hose Replace pressure hose I-Wrong nozzle Make sure chemical nozzle is being used J-Back pressure from extra long discharge hose Try shorter hose K-Leak in chemical siphon hose Replace hose – use hose clamps if necessary L-Chemical strainer not submerged Make sure strainer is completely submerged Any Questions, Comments, Problems or Parts Orders Call Northstar Product Support 1-800-270-0810 13 Specifications A1577541 A1573701 PSI 2700 GPM 2.5 Max Water Temp 140°F Power 5-6.5hp Gas engine Shaft size .” keyed Nozzle size #3.0 PSI 2000 GPM 3.0 Max Water Temp 140°F Power 5-6.5 hp Gas engine Shaft size .” keyed Nozzle size #4.0 A1573981 A1578111 PSI 3000 GPM 4.0 Max Water Temp 140°F Power 11-13 hp Gas engine Shaft size 1” keyed Nozzle size #4.5 PSI 2700 GPM 2.5 Max Water Temp 140°F Power 5-6.5hp Gas engine Shaft size .” keyed Nozzle size #3.0 A1578171 A1578131 PSI 2750 GPM 2.5 Max Water Temp 140°F Power 5-6.5hp Gas engine Shaft size .” keyed Nozzle size #3.0 PSI 3000 GPM 3.0 Max Water Temp 140°F Power 8-9hp Gas engine Shaft size 1” keyed Nozzle size #3.5 A1578181 A1578151 PSI 3200 GPM 3.0 Max Water Temp 140°F Power 8-9hp Gas engine Shaft size 1” keyed Nozzle size #3.5 PSI 4000 GPM 3.5 Max Water Temp 140°F Power 11-13hp Gas engine Shaft size 1” keyed Nozzle size #3.5 A1578201 A1578173 PSI 4000 GPM 3.5 Max Water Temp 140°F Power 11-13hp Gas engine Shaft size 1” keyed Nozzle size #3.5 PSI 3000 GPM 2.5 Max Water Temp 140°F Power 5-6.5hp Gas engin...