Pressure Washer
Operation
1. Surface Preparation
The following cleaning procedure will help you organize your cleaning task and ensures that you will achieve the best results in the shortest amount of time.. Remember to use the spraying / cleaning techniques mentioned in the following section..
Before starting a pressure washer cleaning job, prepare the surface you intend to clean.. Clear furniture from the area and make sure that all windows and doors are closed tightly.. Also, protect all plants and trees near the cleaning area with a drop cloth.. A covering ensures that your plants won’t be sprayed by the detergents..
2. Start Up
ALWAYS use the following start up procedure to ensure that the unit is started safely and properly..
If water has frozen in the pressure washer, thaw the pressure washer in a
warm room before starting. DO NOT pour hot water on or into the pump; internal parts will be damaged.
1..Check engine oil levels.. Add oil as necessary..
2..Check fuel level.. Add unleaded gasoline (rated 86 octane or higher) as required..
the rope as it returns.. Repeat these steps until the engine starts..
Figure 10 - Start the engine
do NOT refuel a hot engine. Refueling a hot engine could cause a fire. Use
only fresh, clean regular or unleaded gasoline. Close the fuel shutoff valve during refueling.
3..Attach a garden hose to the inlet side of the pump and connect it to the water supply.. Use a hose with an internal diameter (I..D..) of 5/8 inch (1..58 cm) and a length of 50 ft.. (15 m) or less..
some local plumbing codes require backflow prevention when connecting to
a fresh water supply. Install a backflow preventer upstream from the pump if necessary.
a..If inlet water pressure is over 100 psi, install a regulating water valve at the garden hose connection..
b. Do not exceed 100° F (38° C) inlet water temperature..
NOTE: The inlet water supply must have a minimum flow rate of 5 gpm (19 lpm)..
4.. Turn the water supply ON..
never run the unit dry. Be sure the water supply is completely turned on before
operating the unit.
5..Trigger the gun until water sprays smoothly from the tip indicating that all air is purged from the system.. Lock the trigger safety latch..
6.Open the fuel valve by turning the knob counterclockwise until it stops.. Close the choke (if engine is cold) by moving the choke ring fully to the right.. Turn the ignition switch to “ON”..
7.Start the engine.. Unlock the trigger safety latch on the gun (See Figure 9).. Grasp the starter rope and brace one foot on the chassis.. Point the gun in a safe direction.. While squeezing the trigger on the gun, pull the starter rope rapidly and firmly (See Figure 10).. Continue holding
when pulling the starter rope, make sure to keep your hand and arm clear of
the engine and cart components.
never let the starter rope return by itself. Doing so could jam the recoil
system.
8.If the engine does not start after two or three pulls or if the rope is hard to pull, squeeze the gun trigger to release the pressure that has built up in the high pressure hose.. Repeat Steps 7 and 8 until the engine starts..
3.Initial High Pressure Rinse
Spray the cleaning surface with water to clear off any dirt or grime that may have collected on the surface.. Doing so allows the detergent to attack the deep down dirt that has worked its way into the cleaning surface..
Angle to the cleaning surface
When spraying water against a surface, you can generate maximum impact by striking the surface head on.. However, this type of impact can cause dirt particles to embed in the surface and can prevent the desired cleaning action..
The optimum angle for spraying water against a cleaning surface is 45 degrees (See Figure 11)..
Spray water against a surface at a 45 degree angle to achieve the most beneficial impact force and to efficiently remove debris..
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