Maintenance Schedule - Kärcher SB MU 908 Originalbetriebsanleitung

Time Activity
once a year Clean the filter
before the
frosting peri-
od starts
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daily opinion
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empty
Initially dai- empty
ly, later on
based on ex-
perience
Everyday opinion
under frost
conditions
After 40 op- opinion
erating hours
or once a
week
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Maintenance schedule

Assembly affectedPerformance
Antifreezing circula- Empty and clean the collection chute for the frost protection water.
tion Clean the filter on the immersion pump.
Clean filter of the anti-freeze pump (on the frame of the high-pressure
pumps).
Clean the tool compartment and check for free flow.
Clean the sieve in front of the orifice plate (in the area of the high pres-
sure pump outlet) (see "Maintenance work").
Fill the collection chute for the frost protection water with fresh water.
Warm water gener- Check function.
ation
Antifreezing circula- Check the submersible pump in the collection chute for proper function.
tion Check if at least 0.5 l/h of water exit each hand spray gun.
Adjust the overflow passage on the submersible pump if necessary.
External thermostat Measure the outside temperature in the vicinity of the outside temper-
ature sensor and compare it with the outside temperature on the dis-
play of the control.
Have the setting corrected by the aftersales service if deviations ex-
ceed 1...2 °C.
Frost protection Switch on the frost protection pump (see Chapter "Manual proce-
with lost water dures").
Check if at least 0.5 l/h of water exit each hand spray gun.
Heated foam hoses Check for cracks or other damages.
Emergency frost Turn the main switch to position "0".
protection Check if at least 0.8 l/h of water exit each hand spray gun.
High pressure hos- Check high pressure hoses for mechanical damages such as scraping,
es, foam hoses visible hose duck, bends, porous and cracked rubber. Replace dam-
(with 2 tool model) aged high pressure hoses.
Information signs at Check whether the warning boards for the users are available and leg-
the washdown yard ible.
Washing station Check the function of the washing station lighting and replace defective
lighting lights.
Spray lance Check for tightness; replace O-ring if necessary. Nozzle protection and
handle pipe OK? Replace if necessary.
Hand spray gun Check for tightness; replace O-ring if necessary.
Can the high-pressure hose be rotated, and is the lever running
smoothly? Lubricate if nessary (see section „Maintenance work").
Tool storage box Check from the outside for foreing matters and contamination. Remove
coarse contaminants.
Fill levels of the de- Check filling level, refill or replace if necessary.
tergent container
Coins container Open the coin acceptor doors and empty the coin container.
Compressor Drain the condensate from the pressure container of the compressor. Operator
Antifreezing circula- Check the submersible pump in the collection chute for proper function.
tion Check if at least 0.5 l/h of water exit each hand spray gun.
Adjust the overflow passage on the submersible pump if necessary.
Tightness of systemCheck pumps and pipes for leaks. Inform Customer Service if there is
oil under the high pressure pump, if more than 3 drops of water drop
out of the high pressure pump when the pump is running.
Oil condition Milky oil indicates that it contains water. Inform Customer Service.
Check oil level in The oil level must lie between the MIN and MAX markings; else refill. Operator
the high pressure
pumps
Detergent hoses Visual inspection of the high-pressure jet whether it contains detergent.
with filter Clean the filter if necessary.
Entire plant Check the functions of all wash programs.
Salt stock in the salt Is the salt level above the water level? If required, top up softening
tank salts.
Residual hardness Draw water at the soft water test cock and check residual hardness.
of softened water Nominal value: below 10 °dH
Filter for frost-pro- Check filter for soiling and reinsert
tection pump
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By whom
Operator/
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Service
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