John Deere WASHERS AC-3500GHH - Manual (Page 11)

John Deere Operator's Manual 11
DUAL LANCE ASSEMBLY WITH ADJUSTABLE PRESSURE:
This unit features a Dual Lance Assembly with adjustable pressure which
allows the user to select a high or low pressure "fan" spray. Simply rotate
the adjustable grip on the dual lance to achieve the desired pressure
selection.
1. Selection of high pressure can be achieved by turning the adjustable grip
on the Dual Lance assembly counterclockwise as shown in the figure
below.
2. Selection of low pressure detergent application can be achieved by turning
the adjustable grip on the Dual Lance clockwise as shown in the figure
below. Once the pressure is low enough, the detergent injector on the
pressure washer will draw detergent into the system. A water/detergent
mixture exits from both the spray nozzle and detergent nozzle.
DUAL LANCE CONNECTION:
1. Be certain the trigger gun is locked in the "OFF" position.
2. Connect the dual lance assembly to the trigger gun assembly at this time.
Be certain the connection is securely tightened.
INSTALLATION & PREPARATION
WARNING
RISK OF INJECTION CAUSING
SEVERE INJURY!
-THE TRIGGER GUN SHOULD
ALWAYS BE LOCKED IN THE OFF
POSITION WHEN NOT IN USE!
-NEVER LOOK DIRECTLY AT
THE NOZZLE UNLESS IT IS
DISCONNECTED FROM THE
TRIGGER GUN/DUAL LANCE
ASSEMBLY!
WATER SUPPLY:
1. Select a water supply hose which is a quality grade of garden hose
measuring at least 3/4" ID and no longer than 50 feet.
2 Check the water inlet strainer to ensure it is clean and free of any
obstructions. As a strainer becomes obstructed, it restricts proper flow of
water to the pump. This can result in cavitations which will prematurely
cause failure of pump packings.
a. Unscrew the strainer cap from the unit.
b. Remove the strainer screen and clean, or replace.
3. Connect one end of the water supply hose to the water inlet of the unit.
Connect the other end of the hose to your pressurized water supply.
NOTE: When connecting the water inlet to the water supply mains, local
regulations of your water company must be observed. In some
areas, the unit must not be connected directly to the public drinking
water supply. This is to ensure there is no feedback of detergents
into the water supply. (Direct connection is permitted if a backflow
preventer is installed. Check with local authorities for approval.)
NOTE: If the mineral content of the water in your area is extremely high, the
use of a water softener is recommended to prevent the possibility of
excessive scale buildup inside the heat exchanger coil.
4. Follow the incoming water requirements listed below:
a. Water pressure must be a minimum of 20 pounds per square inch
(PSI) and a maximum of 125 PSI. (A typical outdoor faucet will
generally supply this PSI if turned completely "ON".)
b. Incoming GPM must be approximately one gallon more than the
outgoing GPM stated on the pressure washer nameplate. (You can
check GPM by timing how long it takes to fill a 5 gallon container.)
c. Incoming water temperature must not exceed 125°F. Excessive pump
damage may result if the water temperature exceeds this acceptable
level.
5. Never allow the unit to operate without the incoming water line attached
and the water supply is completely turned on.
WATER INLET STRAINER