HydraMaster Titan 625, Руководство пользователя

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5-19: Machine Maintenance
Freeze Guard Procedure
1. With the truckmount turned off and the incoming water line disconnected, open the
water box drain valve on the front of the truckmount. Allow the system to fully drain.
Close the water box drain valve.
In some extreme cold-temperature locations, you may find it necessary to
disconnect the pressure gauge hose from the high pressure pump and drain the
hose. Reconnect the hose to the pump before proceeding to step 2.
2. Add 2 gallons of 50/50 antifreeze and water mix to the water box.
3. Attach a recirculation fitting (see the previous page and Figure 5-19) to the incoming
water quick connect on the front of the machine.
4. Attach a section of solution hose(s) to the outgoing solution fitting on the front of
the machine. Attach the opposite end to the recirculation fitting. (If more sections of
hose are to be freeze guarded, attach those inline.)
5. Start the truckmount and allow it to run for 2 to 3 minutes. This will distribute antifreeze
solution throughout the truckmount.
6. Remove the chemical feed line from the chemical jug. Turn the SELECTOR VALVE
to “PRIME.” This will vacuum the chemical remaining in the lines to the recovery
tank.
7. Check the coolant freeze point with a coolant tester, (coolant refractor testers are
the most accurate). If the freeze point is not low enough add more coolant until
desired freeze protection is achieved.
8. Remove the recirculation fitting from the truckmount.
9. Loosen the fitting at the back of the pressure gauge with a wrench after the antifreeze
has been added to the machine to purge the coolant out of the fitting.
10. Re-tighten the fitting.
11. Spray the antifreeze and water mix out of the truckmount and into a container to
reclaim the solution. Run the solution until it stops.
12. The truckmount is now freeze guarded. Remember to flush antifreeze from the
system prior to carpet cleaning. See the following procedure.
The reclaimed antifreeze solution may be used three times before being discarded.