Harbor Freight Tools 91142 - Manual (Page 6)

SKU 91142 For technical questions, please call 1-800-444-3353. Page 6
Operation
Important Guidelines
• do leave the engine running without spraying water. If it is left on for more than
three minutes without discharging the high pressure water, damage could occur to the
internal pump and high pressure hose.
• The water hose should provide at least 3 gallons per minute for the Pressure
Washer to operate at maximum performance. Use only 3/4 (dia.) inch water hose
supply. A smaller diameter hose limits the amount of water to the pump. Test by
filling a five gallon bucket with the water supply hose. It should fill the bucket in three
minutes or less.
• Always use clean water through the Pressure Washer. Debris in dirty water could
damage the internal pump.
Setup
1. Fill with engine oil. Never run this Pressure Washer with
low or no oil.
With Pressure Washer on a flat surface, carefully
unscrew the Oil Cap Dip Stick (A). Add oil. Carefully
screw in the Oil Cap Dip Stick (A). If the (plastic) threads
on the Oil Cap do not seat correctly with the (metal)
threads on the oil fill neck, the plastic threads can be
stripped. Refer to the Robin ® Engine Maintenance
Manual for the recommended oil weight.
2. Fill the gasoline tank (B) with unleaded gasoline. See
engine photo on the next page.
Do not use leaded gasoline. Be careful not to spill any
gasoline on the engine or pavement. Wash down any
spilled gasoline.
3. Connect the 3/4 inch garden hose from a cold water
garden faucet to the Water Inlet Connector (8A). Tighten
securely. See photo to right. Turn on the water faucet
valve all the way (counterclockwise).
(8A)
(1A) (9A)
(A)
REV 05j