Maintenance; Protect From Freezing; Daily Regular Maintenance; Periodic Maintenance - Kärcher BRC 30/15 C Operating Instructions Manual

Protect From Freezing

If it becomes necessary to store in temperatures that
could drop below 40°F, the pumping system, hoses and
valves must be protected from freezing with a methyl
hydrate window washer antifreeze solution.
NOTE: Do not use ethylene glycol or cooling system
antifreezes.
1. Add one gallon of window washer antifreeze to the
supply tank.
2. Turn on pump switch and spray until the anti-freeze
solution fills the solution lines.
3. Drain the leftover antifreeze from the supply tank.
Always allow the unit to reach room temperature
before filling with hot water or operating.
4. Before operation be sure to flush system
completely. Failure to do so after winterizing
machine will damage carpet.

Daily Regular Maintenance

Before making any adjustments or repairs to the
machine, disconnect the power cord from the elec-
trical source.
1. Empty unused cleaning solution from the solution
tank.
2. Inspect and clean filter at solution tank fill port and
at the vacuum intake port in the dome.
3. Flush pumping system with 1 to 2 gallons of clean,
hot water.
4. Check spray jet for full spray pattern.
5. Empty the recovery tank and rinse with clean
water.
6. Check for and remove any lint or debris around
brush and vac shoe.
7. Clean float screen and check float valve to make
sure it moves freely.

Periodic Maintenance

1. After every 25 hours of operation, flush a white
vinegar solution (ONE quart vinegar to two gallons
of water) or anti-browning solution (mixed as
directed) through the extractor. This will prevent
build-up of alkaline residue in the system.
2. If the spray jet becomes clogged, check for debris
and clean surface of jet.
NOTE: Do not use pins, wire, etc. to clean spray jet
nozzle as this will deform the jet and destroy the
spray pattern.
3. Periodically inspect all hoses, electrical cables,
filters, gaskets and connections on your machine.
Frayed or cracked hoses should be repaired or
replaced to eliminate vacuum or solution pressure
loss.
4. The electrical cable must be well insulated, if the
cable insulation is broken or frayed, repair or
replace it immediately. Don't take chances with
electrical fire or shock.
5. The filter in the bottom of the solution tank and at
the fill port must be clean to allow free flow of
cleaning solution. The screen filter on the vacuum
intake in the dome must be free of lint buildup to
ensure full vacuum strength.
6. The dome gasket must be properly seated and free
of damage to create the air seal needed to extract
water.
86348550 BRC 30/15 C

Maintenance

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