Kärcher BD 50/70 R Bp Mode D'emploi page 6

In unusual cases not covered by the
manuals referred above, consult the
powered floor scrubber manufacturer.
Maintenance and inspection of the unit
shall be performed in conformance
with the following practices:
A a schedules planned maintenance,
lubrication, and inspection system
shall be followed; consult the man-
ufacturer's recommendations.
B only tranined and authorized per-
sonnel shall be permitted to main-
tain, repair, adjust, and inspect the
unit, and in accordance with manu-
facturer's specifications.
When lifting powered floor scrubbers
for repair or inspection, the units shall
be lifted in a safe, secure, stable man-
ner. Removal of components such as
counterweights or uprights will change
the center of gravity and may create an
unstable condition.
Before starting inspection and repair of
powered floor scrubber:
A raise drive wheels free of floor and
disconnect battery and use chocks
or other positive truck-posirioning
devices;
B block chassis before working on
them;
C disconnect battery before working
in the electrical system;
D the charger connector shall be
plugged only into the battery con-
nector and never into the unit con-
nector.
Operation of the powered floor scrub-
ber to check the performance shall be
conducted in an authorized area where
safe clearance exists.
A Before starting to operate the unit:
1 be in operating position;
2 apply brake;
3 place directional controls in neutral;
4 turn switch to ON position;
5 check functioning of lift and tilt sys-
tems, steering, warning devices,
and brakes.
B Before leaving the unit:
1 stop unit;
2 place directional control in neutral;
3 apply the parking brake;
4 stopp the engine or turn off the pow-
er;
5 turn off the control circuit;
6 if the unit must be left on an incline,
block the wheels.
Avoid fire hazards and have fire pro-
tection equipment present in the work
area. Do not use an open flame to
check the level of any fluid, especially
battery electrolyte. Do not use open
pans of fuel or flammable cleaning flu-
ids for cleaning parts.
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Properly ventilate work area, vent ex-
haust fumes, and keep shop clean and
dry.
Brakes, steering mechanisms, control
mechanisms, warning devices, lights,
governors, guards and safety devices,
articulating axle stops, and frame
members shall be carefully and regu-
larly inspected and maintained in safe
operating condition.
FIRE SAFETY STANDARD
Any unit not in safe operating condition
shall be removed from service.
Repairs shall not be made in Class I,
Class II, and Class III locations.
Repairs to the electrical system of bat-
tery powered floor scrubbers shall be
performed only after the battery has
been disconnected.
Operating Temperature. When the
temperature of any part of any pow-
ered floor scrubber is found to be in ex-
cess of its normal operating tempera-
ture and creates a hazardous condi-
tion, the vehicle shall be removed from
service and shall not be returned to
service until the cause for such over-
heating has been eliminated.
Fire Prevention.The unit shall be kept
in a clean condition and reasonably
free of lint, excess oil, and grease.
Noncombustible agents are preferred
for cleaning the unit. Flammable liquids
[those having flash points at or above
100°F (37,8°C)] are not allowed. Pre-
cautions regarding toxicity, ventilation,
and fire hazard shall be appropriate for
the agent or solvent used.
Nameplate Visibility. The unit type
designations as shown on the name-
plate and the type markers shall not be
covered over with paint so that their
identification information is obscured.
Changing and Charging Storage
Batteries.
This section shall apply to batteries
used on electric trucks. The two types
of batteries commonly are lead and
nickel-iron. They contain corrosive
chemical solutions, either acid or alkali,
and, therefore, present a chemical
hazard. While being charged, they give
off hydrogen and oxygen, which, in
certain concentrations, are explosive.
Battery-charging installations shall be
located in areas designated for that
purpose; such areas shall be kept free
of extraneous combustible materials.
Facilities shall be provided for the fol-
lowing:
A Flushing spilled electrolyte;
B Fire protection;
C Protecting charging apparatus from
damage by trucks, and
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D Adequate ventilation for dispersal
of fumes from gasing batteries.
Where on-board chargers are used,
charging shall be accomplished at lo-
cations designated for that prupose,
taking into account the electrical re-
quirements of the charger and facilities
for fire protection.
Exception: Flushing facilities shall not
be required if charging is accomplished
without removing the battery from the
vehicle.
Where handling acid concentrates
greater than 50 percent acid (above
1.400 specific gravity) an eye-wash
fountain shall be provided.
A conveyor, overhead hoist, or equiva-
lent material handling equipment shall
be provided for handling batteries.
Chain hoists shall be equipped with
load-chain containers. Where a hand
hoist is used, uncovered batteries shall
be covered with a sheet of plywood or
other nonconducting material to pre-
vent the hand chain from shorting in
cell connectors or terminals. A properly
insulated spreader bar shall be used
with any overhead hoist.
Reinstalled or new batteries shall meet
or exceed the battery type marked on
the unit. Reinstalled batteries shall be
positioned properly and secured in the
unit.
A carboy tilter or siphon shall be pro-
vided where acid in carboys is used.
Where diluting concentrated sulfuric
acid to make up elektrolyte, the acid
ALWAYS shall be added to the water –
not reverse. Battery maintenance per-
sonnel shall wear protective clothing
such as eye protection, long sleeves,
and gloves.
Exception: Removal and replacement
of batteries shall not require the use of
protective clothing.
Electrical installations shall be in ac-
cordance with NFPA 70, National elec-
tric code, and any local ordinances.
Trained and authorized personnel
shall change or charge batteries.
The powered floor scrubber shall be
positioned properly and brakes shall
be applied before attempting to change
or charge batteries.
Where charging batteries, the vent
caps shall be kept in place to avoid
electrolyte spray. Care shall be taken
to ensure that vent caps are function-
ning. The battery (or compartment)
cover(s) shall be open to dissipate heat
and gas.
Smoking shall be prohibited in the
charging area.