7
PW4035
www.chpower.com
7. Start the engine: Unlock the trigger
safety latch on the gun . Grasp the
starter rope and brace one foot on
the chassis . While squeezing the
trigger on the gun, pull the starter
rope rapidly and firmly . Continue
holding the rope as it returns . Repeat
these steps until the engine starts .
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 .
After the engine starts, trigger the gun
3 to 5 times to get any trapped air out
of the system . After the spray becomes
constant, you may need to adjust the
pressure .
Figure 11 - Camshaft pump pressure
adjustment
PreSSure ADjuStMeNt
Please refer to your CAT pump manual
for specific pressure adjustment details .
ADjuStING the SPrAY FAN ANGle
Five quick connect tips are included with
this pressure washer . The tips have a
range of spray fan angles, ranging from
0°, narrow high impact, to a 65° wide fan
spray .
Pressure can also be adjusted by moving
closer or further away from the cleaning
surface and by adjusting the spray fan
angle as shown .
Figure 12 - Narrow high impact stream
Figure 13 - Wide fan pattern
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 .
Spray water against a surface at a
45 degree angle to achieve the most
beneficial impact force and to efficiently
remove debris .
DIStANCe FrOM CleANING SurFACe
The distance between the spray tip and
the cleaning surface is another factor
that affects the impact force of the water .
The impact force of the water increases
as the tip is moved closer to the surface .
Operation (Continued)
hOW tO AvOID DAMAGING SurFACeS
Damage to cleaning surfaces occurs
because the impact force of the water
exceeds the durability of the surface.
You can vary the impact force by
controlling the spray tip angle to the
cleaning surface and the distance from
the cleaning surface and by changing
the spray tip . NEVER use a narrow
high impact stream on a surface that is
susceptible to damage . Avoid spraying
windows with a narrow high impact
stream . Doing so may break the window .
The most sure way to avoid damaging
surfaces is to follow these steps:
1 . Before triggering the gun, make sure
the quick connect tip you are using is
appropriate for the application .
2. Place the spray tip approximately
4-5 feet (1,22-1,52 m) away from the
cleaning surface . Then hold the lance
and spray tip at a 45 degree angle to
the cleaning surface . Trigger the gun .
3 . Vary the fan pattern spray angle and
the distance to the cleaning surface
until optimum cleaning efficiency
is achieved without damaging the
surface .
Counterclockwise:
Lower pressure
Clockwise:
Higher pressure
Figure 14 - Optimum angle to cleaning
surface
