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Storage Prep and Freeze Protection Procedures:
Your Olympus M500H must be protected from freezing. Freezing can cause serious damage to the pump,
pump-out, auto-fill float valve, and any other component containing water. If the M500H is transported or
stored in freezing temperatures, the following procedures should be performed.
ALSO, if the M500H is stored for an extended period of time, the following procedure should be performed
to prevent the pump seals from drying out.
1.
In a separate container mix 1/2 gallon of water with 1/2 gallon of automotive radiator anti-freeze.
(Ethylene glycol type). Mix well and pour into the solution tank.
2.
Connect the pump prime hose to the solution outlet (female quick connect) and perform the pump
priming procedure, directing the flow back into the solution tank. When the pump is primed, turn the
pump off and disconnect the priming hose.
3.
If equipped with Auto-Fill (If not go to step #5); connect the HP solution hose to the solution outlet
(female quick connect.) Connect the opposite end of the HP solution hose to the Auto-Fill inlet (male
quick connect.) Leave the chemical feed hose in the solution tank and ensure the check valve filter is
submerged in the anti-freeze solution. To speed the process the metering tip can be removed. Turn the
pressure regulator knob counter-clockwise to lower the pressure to 100psi or lower
CAUTION: Applying high pressure (over 100psi) to the Auto-Fill system will cause damage to
the Float valve and chemical proportioning mechanism.
4.
Turn the solution pump switch to the ON position. Allow the anti-freeze to circulate for 5-10 minutes.
Mix and add more anti-freeze solution as needed. Make sure end of chemical feed hose stays submerged
in the anti-freeze solution. This will assure that the anti-freeze will be drawn into the proportioning valve.
Then turn the solution pump off.
5.
Connect any cleaning tools that will be stored with the M500H. Turn the solution pump switch to the
ON position. Direct tool spray back into the solution tank or into a bucket. Turn the solution pump off
and repeat for all tools to be protected.
6.
Turn the solution pump switch to the OFF position.
7.
Use the vacuum hose to vacuum the remaining anti-freeze solution out of the solution tank and bucket.
8.
If equipped with Auto Pump-Out (If not go to step #10); remove the cap from the waste-pump out
outlet fitting on the back of the machine. Connect a hose to a drain or hold a bucket up to the fitting to
catch the pump-out flow.
9.
Remove the lid from the recovery tank. Turn the Waste Pump switch to the ON position and lift the float
switch to engage the pump-out. Lower the float and turn off the Waste Pump Switch as soon as you see
anti-freeze flowing from the outlet fitting or hose.
10.
Drain the remaining anti-freeze solution from the recovery tank and the machine is ready for storage.
RETURNING THE M500H TO SERVICE AFTER STORAGE OR
FREEZE PROTECTION:
To return the M500H to service, the anti-freeze must be flushed from the machine. Flush the anti-freeze out
of the machine by repeating the procedures above using fresh water in place of anti-freeze.
