Storage & Maintenance; Specific Maintenance; Winterizing - Mi-T-M JOB PRO JP Serie Manual De Operación

WARNING
RISK OF UNIT BURSTING!
DO NOT STORE OR OPERATE
UNIT IN A FREEZING ENVIRON-
MENT!
32˚F 0˚C
18
STORAGE & MAINTENANCE

SPECIFIC MAINTENANCE:

PUMP: The pump oil must be changed after the first 25 hours of operation.
Once the initial oil change has been completed, it is recommended the
oil be changed every 3 months or 250 hour intervals. If oil appears
dirty or milky, changes may be required at a greater frequency. Use
Mi-T-M pump oil #AW-4085-0016 and fill only to the center of the
oil sight glass. DO NOT OVERFILL!
NOZZLES: Water flow through the spray nozzle will erode the orifice, making
it larger, resulting in a pressure loss. Nozzles should be replaced
whenever pressure is less than 85% of the maximum. The
frequency of replacement will depend upon such variables as
mineral content in the water and number of hours the nozzle is
used.
QUICK COUPLERS (if applicable): There is an o-ring seal inside the female
quick coupler. This o-ring will deteriorate or, if the unit is allowed to
pump without the high pressure hose or nozzle attached, the o-ring
may be blown out occasionally. Simply insert a replacement o-ring
to correct the leak. (Additional o-rings can be purchased from your
dealer.)

WINTERIZING:

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. (Mi-T-M recommends 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 and primed according to the "Start-
up Procedures" listed on page 16.
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 nozzle.
d. Lock the trigger gun in an OFF position and remove the nozzle.
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 bucket with water.
h. Holding the 3 foot hose in an upright position, completely fill the hose
with water. Then plug the hose outlet with your thumb or finger. Place
the plugged end into the 5 gallon bucket of water.
i. Turn the unit on. Trigger the gun several times until all the air is worked
out of the system (unit is primed).
NOTE: Proper winterizing is based on the recommended manufacturer's
instructions listed on the "Protection Chart" shown on the back label of
most antifreeze containers.
Mi-T-M JP-Electric Operator's Manual