Graco Inc. Hydra Clean 3035 - Manual (Page 6)

6 308-489
STARTUP
Use this procedure whenever starting the pressure
washer to help insure that the unit is ready to operate and
starting is done safely.
1. Check oil levels.
Engine: Add SAE 30 or 10W–30 weight detergent oil
as necessary.
Pump: Add SAE 20 or 30 weight non–detergent oil as
necessary.
NOTE: Some units are equipped with a low–oil sensor
that shuts the engine of f if the oil level falls
below a certain level. If the unit stops
unexpectedly, check both the oil and the fuel
levels. Check the oil level each time the unit is
refueled.
2. Check fuel level.
WARNING
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. Turn on the water supply.
CAUTION
Never run the unit dry . Costly damage to the
pump will result. Always be sure the water
supply is completely turned on before
operating.
4. Trigger the gun until water sprays from the tip
indicating that the air is purged from the system.
5. Open the fuel shutof f valve and be sure the spark
plug ignition cable is pushed firmly onto the spark
plug. On those units equipped with an ignition shutoff
switch, the switch should be in the “on” position.
Throttle should be in the “run” position.
6. Start the engine.
NOTE: For easier starting, have one person start the
pressure washer while another person triggers
the spray gun.
If the engine is cold, completely close the engine
choke. Grasp the starter rope, brace one foot on the
pressure washer chassis and pull rope rapidly and
firmly. Continue holding the rope as it returns. Pull
and return the rope until the engine starts. In cool
weather, the choke may have to be kept closed for 10
to 30 seconds before opening it to keep the engine
running. Otherwise, open the choke as soon as the
engine starts.
If the engine is warm, leave the choke open, or just
partly close it. Start the engine as described in the
preceding paragraph. When it starts, be sure to open
the choke completely.
CAUTION
On recoil start engines, never let the starter rope
return by itself. It could jam the recoil system.
7. ALWAYS engage the gun’ s trigger safety latch
whenever you stop spraying, even for a moment, to
reduce the risk of fluid injection or splashing in the
eyes or on the skin if the gun is bumped or triggered
accidentally.
8. ALWAYS observe the following CAUTIONS to avoid
costly damage to the pressure washer.
CAUTION
DO NOT allow the pressure washer to idle for
more than 10 minutes. Doing so may cause the
recirculating water to overheat and seriously
damage the pump. T urn of f the pressure
washer if it will not be spraying or cleaning at
least every 10 minutes. If heated inlet water is
used, reduce this time further.
DO NOT run the pump dry , which will quickly
damage the pump. Be sure the water supply is
fully turned on before starting the pump.
DO NOT operate the pressure washer with the
inlet water screen removed. This screen helps
keep abrasive sediment out of the pump, which
could clog or scratch the pump. Keep this
screen clean.
DO NOT pump caustic materials; such
materials may corrode the pump components.
9. See the chemical injector or sandblaster kit manual
for detailed cleaning information if these accessories
are used.