Crathco Standard 3311, Руководство оператора

Страница: 16 / 40

How to Clean Condenser (Air-Cooled Unit Only)
NOTICE:
Loss of refrigeration efficiency will result if
condenser is allowed to become dirty. Excessive
compressor run time or loss of capacity is a good
indication that the condenser needs to be cleaned.
1. Disconnect electrical power.
2. Remove side panels.
3. Place a damp towel over the side of the condenser
opposite the fan motor.
4. Using compressed air or CO2, blow out dirt from
the fan side of the condenser. An alternate
cleaning method is to use a condenser brush and
vacuum cleaner.
CAUTION:
Procedure can create a loud noise. Use
hearing protection.
How to Clean Exposed Filter (Air-Cooled Unit
Only)
1. Slide exposed filter out of the rails by pulling
forward on the filter. It is recommended to remove
the filter by using the palm of your hand and
applying even pressure to the face of the filter.
2. Clean filter with liquid soap and water.
3. Soak filter for 15 minutes.
4. Rinse filter with heavy stream of water, opposite
the direction of air flow. Allow filter to dry.
5. Slide the filter into the rails until the filter contacts
the stop on the top rail.
How to Clean Concealed Filter (Air-Cooled Unit
Only)
1. For concealed filters lift lid and pull up on filter tab
to remove filter.
2. Clean filter with liquid soap and water.
3. Soak filter for 15 minutes.
4. Rinse filter with heavy stream of water, opposite
the direction of air flow. Allow filter to dry.
5. Slide filter into top of filter cover with removal clip
up and the air flow arrows facing the existing
panel.
How to Adjust Belt
CAUTION:
Unplug the machine before
performing any adjustments. This procedure
must be done by a qualified technician.
Check the belt tension. The proper belt deflection is
1/2” over all. If the deflection is more than 1/2” the
motor will need to be lowered. If the deflection is less
than 1/2”, the motor will need to be raised. Follow this
procedure to adjust the motor to achieve proper belt
tension. (See Figure FF)
1. Unplug the machine and remove both side and
rear panels.
2. Locate the motor flange bearings. These are the
side mounted bearings that hold the motor to the
cradle. The motor is double shafted and the shaft
extends through a bearing on each end. The
bearing is held to the motor cradle by two allen
bolts on each bearing.
3. Loosen the allen bolts on each bearing. Do not
loosen the setscrews that hold the bearing collar to
the motor shaft.
4. Lower the motor or raise the motor as needed. The
motor must be kept level from front to back. Do
not lower or raise only one end of the motor. This
will result in excessive belt wear and belt noise.
5. Align the motor pulley with the top pulley if
needed. Tighten all four allen bolts down.
NOTICE:
The motor pulley should be in alignment
with the large (driven) top pulley. Use a straight edge
along the top pulley.
6. If the pulleys are not in alignment, loosen the
setscrew on the motor pulley and move either in or
out as needed.
7. Tighten the setscrew back down on the motor
shaft (use of non-permanent Loctite ® is
recommended). Please be sure the setscrew is
tightened down on the flat surface of the motor
shaft.
8. Reassemble and return the unit back into service
How to Change Back Lit Sign Merchandiser Bulb
1. Remove the two screws located on the top of
either side of the sign.
2. Lower the metal enclosure that frames the
merchandiser insert.
3. Pull merchandiser enclosure down and out.
4. Replace bulb inside by pulling bulb straight out of
the socket. Firmly insert the new bulb into the
socket.
5. Reassemble. For ease of assembly, put
merchandiser and plastic lenses in light box before
placing metal enclosure back on.
16 Crathco ® Model 3311 Beverage Freezer
Cleaning and Maintenance (continued)
Figure FF