HydraMaster CTS 403 Flex, Owner'S Manual

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1-7: General Information
Never operate the truckmount with a water hardness reading measuring 3.0
grains per gallon or higher. Using reading than 3.0 grains per gallon will cause
scale to build up inside the truckmount water system. Scale build up causes
serious component damage. Test all water prior to use and use water softening
equipment if necessary.
Never allow water to freeze inside the truckmount. Serious component damage
will occur. Perform all freeze guarding procedures outlined in the digital Owner’s
Manual.
Many vehicles have critical components mounted directly below the floor that can
easily be damaged. Before drilling holes in the floor of the vehicle, inspect the
underside of the vehicle for critical components. Failure to do so may result in
damage to the vehicle.
During the operation of this equipment, surfaces will become hot. Do not allow
components such as hoses to touch hot surfaces. Failure to heed this warning
can result in equipment damage which is not covered by warranty.