John Deere AC-3000EH-3 - Manuel (Page 18)

18 John Deere Operator's Manual
HOT WATER OPERATION:
1. Follow the steps 1-8 outlined for "START-UP/COLD WATER
OPERATION".
2. Move the switch to the "Burner" position. On initial start-up, water will
begin turning hot in approximately 20 seconds and will reach maximum
temperature in approximately 2-1/2 minutes, provided the trigger remains
squeezed. The burner will stop firing when the trigger is released.
NOTE: While spraying, it is normal for the burner to fire intermittently. The
high limit switch will cause combustion to cease when the temperature
of the discharged water exceeds the temperature setting of the switch.
Combustion will begin again when the water temperature drops below
the minimum setting .
At this point, the unit is operating as a hot water pressure washer. Be
extremely cautious when adjusting the pressure and controlling the
trigger gun/dual lance assembly to avoid the possibility of burns.
STEAM OPERATION:
1. Follow steps 1-8 outlined for "STARTUP/COLD WATER OPERATION".
2. Ensure the quick-connect at the end of the dual lance is cool enough to
touch, then remove the high pressure nozzle and replace it with the steam
nozzle. Remove the high pressure hose and replace it with the steam
hose.
3. Turn unloader knob completely counterclockwise to the minimum setting.
4. Turn the switch to "Steam".
NOTE: The burner will shut down if the switch is moved to "Steam" without
first setting the unloader to minimum or operating in the high pressure
mode.)
At this point, the unit will operate as a steam pressure washer. Be
extremely cautious when adjusting the pressure and controlling the
trigger gun/dual lance assembly to avoid the possibility of burns.
CLEANING WITH DETERGENTS:
NOTE: This feature is designed for use with mild detergents only. Since the
cleaning solution travels through various parts of the pressure washer,
do not use corrosives as they will cause extensive damage as well as
pose a considerable safety hazard.
1. Refer to "Risk of Bodily Injury / Detergents" pg. 7. Be certain to wear
protective safety attire as stated on pg. 12.
2. Prepare detergent solution according to label directions. (Never pump acids,
alkalines, abrasive fluids or solvents through the unit. Due to the unknown
and often corrosive characteristics of many detergents commonly used in
the pressure washer cleaning industry, it is recommended to use only mild
detergents with this unit.)
3. Fully immerse the strainer end of the clear vinyl detergent hose into the
detergent solution.
4. Adjust the amount of detergent desired. Turn the metering valve completely
counterclockwise to set at maximum siphon rate.
5. To apply solution; unlock the trigger gun and squeeze the trigger. In a few
moments a detergent/water mixture will exit the nozzle. Start spraying
the lower portion of the surface being cleaned and move up, using long
overlapping strokes. Applying from the bottom up helps avoid streaking.
Allow to soak briefly. Avoid working on hot surfaces or in direct sunlight to
minimize the chances of the detergent drying, which may result in damaging
surfaces. Be certain to apply cleaning solution to a small section at a
time.
6. To rinse; lock the trigger gun in the "OFF" position, turn the detergent
metering valve to the "OFF" position. Unlock the trigger gun and spray. It
will take about 30 seconds to purge all detergent from the line. For best
rinsing results, start at the top and work down.
7. Siphon a gallon of water through the detergent injection system after each
use. This prevents the possibility of corrosion or detergent residue causing
mechanical problems during the next use.
OPERATING INSTRUCTIONS
WARNING
RISK OF BURN!
THE WATER TEMPERATURE
COULD BECOME VERY HOT
DURING HOT WATER/STEAM
OPERATION. BE CAUTIOUS
WHEN ADJUSTING PRESSURE
OR CONTROLLING THE TRIGGER
GUN/DUAL LANCE ASSEMBLY.
DETERGENT METERING VALVE