27
maintenance
NOTICE
Proper winterizing is based on the recommended manufacturer’s
instructions listed on the “Protection Chart” shown on the back label of
most antifreeze containers.
For storage and transportation purposes in subfreezing ambient
temperatures, it will be necessary to winterize this unit. This unit must be
protected to the lowest incurred temperature for the following reasons:
1. If any part of the pumping system becomes frozen; excessive pressure
may build up in the unit which could cause the unit to burst resulting in
possible serious injury to the operator or bystanders.
2. The pumping system in this unit may be permanently damaged if
frozen. FREEZE DAMAGE IS NOT COVERED BY WARRANTY.
If you must store your unit in an area where the temperature may fall
below 32°F, you can protect your unit by following the procedure outlined
below.
1. Gather the following items:
a. Two 5 gallon containers.
b. One gallon of antifreeze. (Use an environmentally safe antifreeze.)
c. Water supply.
d. Three foot hose, 1/2-3/4 I.D. with a 3/4 inch male garden hose
fitting.
2. Procedure:
a. To start winterizing, unit must be run according to the “Start-up
Cold Water Operation” listed on page 14.
b. After running and priming, shut off the unit and water supply.
c. Relieve system pressure by pointing the trigger gun in a safe
direction and squeezing the trigger until water flow ceases to exit the
gun assembly.
d. Lock the trigger gun in the OFF position and adjust the collar to the
low pressure mode.
e. Remove the water supply hose from the unit and attach the 3 foot
hose securely to the inlet connection.
f. Shut off the detergent injector (if applicable).
g. Fill one 5 gallon container with water.
h. Holding the 3 foot hose in an upright position, completely fill the
hose with water. Then plug the open end of the hose with your thumb
or finger. Place the plugged end into the 5 gallon container of water.
i. Start the unit. Trigger the gun several times until all the air is worked
out of the system (unit is primed).
j. With the trigger gun held open, siphon enough water out of the 5
gallon container until there is just enough water left to mix with the
antifreeze.
WINTERIZING
