John Deere ac-1500eh User Manual

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John Deere Operator's Manual

1.  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:
a.  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. 

b.  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 18.

b.  After running, 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 Dual Lance Assy.

d.  Lock the trigger gun in the OFF position and adjust the Dual Lance to the low 

pressure mode.

e.  Remove lid from float tank.  

f  Start  the  unit  and  squeeze  the  trigger  gun  until  the  float  tank  is  almost 

empty.  

g.  Stop the unit.

h.  Mix antifreeze and water in a container that can be used for pouring the solution 

into the float tank.

i.  Start the unit.  Point the trigger gun into the empty container.  Trigger the 

gun until the antifreeze begins to exit the trigger gun.  Continue cycling the 

trigger gun several times until all the antifreeze mixture is siphoned from the 

container.

j.  Stop the unit.

k.  Disconnect  the  hose  and  trigger  gun    from  the  unit  and  drain  any  excess 

antifreeze back into the 5 gallon container.

l.  Drain hose, trigger gun and dual lance assembly and store with the unit in a 

safe non-freezing area.

m.  Store antifreeze solution for next use or dispose of according to state EPA 

laws.

3.  OPTIONAL PROCEDURE:

a.  Shut the unit and water supply off.

b.  Relieve system pressure by pointing the trigger gun in a safe direction and 

squeezing the trigger until water flow ceases to exit the nozzle.

c.  Disconnect and drain the hose, trigger gun and dual lance assembly.

d.  Remove the coil drain plug from the heat exchanger inlet.

e.  Start the unit and allow it to run until all the water exits the unit.  Once the water 

has stopped flowing from the unit, turn off.

32˚F

0˚C