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John Deere Operator's Manual 15
OPERATING INSTRUCTIONS
HOT WATER OPERATION:
1. Follow the steps outlined for "START-UP/COLD WATER OPERATION".
2. Move the Burner Switch to the ON 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 ring when the trigger is released.
NOTE: While spraying, it is normal for the burner to re intermittently. The
high-limit switch will cause combustion to cease when the temperature
of the discharged water exceeds the maximum temperature setting of
the switch. Combustion will begin again when the temperature drops
below the minimum setting.
At this point, the unit is operating as a hot water pressure washer. Be certain to
be extremely cautious when adjusting the pressure and controlling the trigger
gun/dual lance assembly to avoid the possibility of burns.
CLEANING WITH DETERGENTS UNDER LOW PRESSURE:
NOTE: This feature is designed for use with mild detergents only. Since the
cleaning solution travels through the heat exchanger coil, 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 uids or solvents through the unit. Due to the unknown
and often corrosives characteristics of many detergents commonly used in
the pressure washer cleaning industry, it is recommended to use only John
Deere 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 by locating the adjustment knob at
the end of the clear vinyl hose. Turn the knob completely counterclockwise to
set at maximum siphon rate. Be certain the adjustable grip on the dual lance
is turned completely clockwise for low pressure detergent operation.
NOTE: This injection system is designed to apply detergents under low pressure
only. It will not allow detergent solutions to be introduced into the system
unless the dual lance is set in the low pressure mode.
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 briey. 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 clean a small section at a time.
6. To rinse; lock the trigger gun in the "OFF" position, rotate the adjustable
grip on the dual lance counterclockwise for high pressure. 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 low pressure detergent injection system
after each use. This prevents the possibility of corrosion or detergent residue
causing mechanical problems during the next use.
SHUT-DOWN:
1. Move the burner switch to the OFF position.
2. Squeeze the trigger and discharge the water for a period of three minutes
to cool the heat exchanger and high pressure hose. (Insufcient cool down
period of the high pressure hose will cause excessive wear and eventual
rupturing of the hose.)
3. DO NOT close the choke to stop the engine. Backre or engine damage
may occur.
4. Move the engine On/Off Switch to the "off" position.
5. Close the engine fuel shut-off valve.
6. Turn off the water supply and trigger the gun momentarily to relieve trapped
pressure.
7. Disconnect and store hoses. Store unit in a non-freezing environment.
WARNING
RISK OF BURN!
THE WATER TEMPERATURE
COULD BECOME VERY HOT
DURING HOT WATER OPER-
ATION. BE CAUTIOUS WHEN
ADJUSTING PRESSURE OR
CONTROLLING THE TRIGGER
GUN/DUAL LANCE ASSEMBLY.