M157310E.2
Installation, Operation, and Maintenance Manual
HOT WATER PRESSURE WASHER: Cleans dirty surfaces with high
pressure hot water.
To the Owner:
Thank you for purchasing a NorthStar hot water pressure washer. Your machine is designed for long life,
dependability and the top performance you demand! Take time now to read through this manual so you better
understand the machine’s operation, maintenance and safety precautions. Everyone who operates this machine
must read and understand this manual. The time you take now will prolong your machine’s life and prepare you
for its safe operation. Enjoy the exceptional performance of your NorthStar hot water pressure washer, the
industry leader! The manufacturer reserves the right to make improvements in design and/or changes in
specifications at any time without incurring any obligation to install them on units previously sold.
Quick Facts
Engine Oil Engine is shipped without oil. Fill before starting.
Use SAE 10W-30 motor oil.
Pump Oil Pump is shipped with oil. Remove shipping tape and check pump oil level before
starting. Use SAE 30 Non-detergent pump oil (item # 4043) or Cat Pump Oil (item
#22158) for oil changes.
Water Make sure your water flow is 20% higher than the pressure washer’s flow rate.
Make sure your water is clean and particle free.
Storage Do not allow water to freeze in the pump, hose, coil, or spray gun.
Spraying
Chemicals
Use any NorthStar brand or equivalent pressure washer chemicals.
Adjust soap adjustment knob to regulate cleaning power.
Maintenance
Schedule
Engine: Oil: change after first 20 hours, then annually or every 100 hours.
Spark Plug: clean every 100 hours, replace annually or every 300 hours.
Air Filter: clean every 100 hours, replace annually or every 300 hours.
Pump: Oil: change after first 40 hours, then every 3 months or 500 hours.
Read and understand all manuals before operating.
Any Questions, Comments, Problems, or Parts Orders
Call NorthStar Product Support 1-800-270-0810
Proven Performance
ITEM NUMBER: 157310
SERIAL NUMBER:
Engine Model:
Pump Model:
Flow:
Pressure:
Hose Length:
Lance Length:
Nozzle Size:
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