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VIII. MAINTENANCE & CLEANING
CAUTION: ELECTRIC SHOCK HAZARD Disconnect power
whenever servicing unit. More than one disconnect may be
required to de-energize unit.
Keep your air curtain operating at peak efficiency by cleaning
the blower wheels, motor(s) and intake grill. Buildup of dust on
the blower wheels can cause vibration, noise and excessive wear
on the motor bearings. The frequency of cleaning will depend
on the environment where the unit is operating.
Dirty, dusty or greasy environments could require a cleaning
schedule of once every two months. If the environment is not
that dirty, the unit(s) should be scheduled for cleaning a mini-
mum of once every (6) months.
A. PERFORMING PREVENTIVE MAINTENANCE
1. Disconnect and lockout power to the unit.
2. Remove the intake screen by removing the machine
screws located around the bottom, front and top of the
screen See Figure 11.
3. Vacuum and scrape (if necessary) to
remove the build-up of dirt and debris. The motor(s)
are permanently lubricated and require no additional
lubrication. Re-install the cover and intake grill.
4. Switch the power on after cleaning.
CAUTION: STAND CLEAR OF THE UNIT OR WEAR
SAFETY GOGGLES AS LOOSE DEBRIS MAY BE
PRESENT AND MAY EXIT THE NOZZLE.
IX. SERVICE
Any service performed on the air curtain MUST be done by
qualified personnel.
Berner air curtains require very little servicing. All parts are
easily accessible for periodic inspection and maintenance.
Units should be cleaned at least twice a year. Your particular
application (the amount of dirt and dust in the air) and
location of the unit(s) will determine how often your
unit(s) will need to be cleaned and serviced. All motors have
permanently lubricated, sealed, sleeve bearings and require no
maintenance.
9
FIGURE 11
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