14
English
START-UP PROCEDURE  (FIG. 1, 10–16)
 1.In a well-ventilated outdoor area, add fresh, high-quality, unleaded
gasoline with a pump octane rating of 86 or higher. Do not overfill. 
Wipe up spilled fuel before starting the engine. Refer to engine 
instruction manual for correct procedure.
 NOTICE:  Use of fuels with greater than 10% 
ethanol are not approved for use in this 
product per EPA regulations and will damage 
the unit and void the warranty.
 2. Check engine oil level. Refer to the engine instruction manual for 
correct procedure. 
  3. Check pump oil level. The oil level should come to the dot in the 
middle of the sight glass. Refer to the Pump  paragraph under 
Maintenance.
  4. Connect the water hose to the water source. Turn the water source 
on to remove all air from the hose. When a steady stream of water is 
present, turn the water source off.
  5. Verify the filter screen (U) is in water inlet of pump. The convex side 
faces out.
U
V
P
FIG. 10 FIG. 11
  6. Connect the cold water source (V) to pump inlet. 
 NOTE: Water source must provide a minimum of 5 gallons per minute 
at 20 psi (138 kPa). 
WARNING:  To reduce the possibility of contamination always 
protect against backflow when connected to a potable water system.
  7. Connect high pressure hose (P) to pump outlet.
  8. If applying a chemical or cleaning solution, refer to Chemicals and 
Cleaning Solvents.
  9. Turn the water source on. 
NOTICE:    Risk of property damage. Failure to do so could cause 
damage to the pump.
 
10. Remove all air from the pump and high pressure hose by depressing 
trigger until a steady stream of water is present.
 11. Turn the engine ON/OFF switch (H) to the ON position.
 12. Place the fuel valve lever (M) in the ON position.
 13. 
If the engine is cold, move the choke (L) to the CLOSED position 
as shown. 
OFF
ON
M
H
L
FIG. 12 FIG. 13 FIG. 14
14.  WARNING:  Risk of unsafe operation. Pull starter grip slowly 
until resistance is felt. Then pull starter grip (I) rapidly to avoid 
kickback and prevent hand or arm injury. 
NOTE: Do not allow the starter grip to snap back. Return it gently by 
hand.