Vollrath Stoelting F231, Руководство по обслуживанию, Страница: 47 / 63

Service Manual #513659 39 Model F231
6.4 CAPACITORS
The compressor start and run capacitors are only on single
phase machines. They are accessible by removing the
right side panel.
The start and run capacitors for the drive motors are
mounted directly onto each motor body.
A. CAPACITOR TEST
1. Disconnect machine from electrical supply before
removing any panels for servicing.
2. Remove a lead from one of the capacitor terminals.
3. Using insulated pliers, discharge the capacitor
by connecting a 20K

5W resistor across the
terminals.
NOTE
Discharge the capacitor even if there is a bleeder
resistor across the terminals. There may be an open
in the bleeder resistor preventing it from working
properly.
4. Disconnect the bleeder resistor from the circuit.
5. Measure the capacitance across the terminals.
The results should be as follows:
B. CAPACITOR REPLACEMENT
1. Disconnect machine from electrical supply before
removing any panels for servicing.
2. Remove leads from the capacitor terminals.
3. Using insulated pliers, discharge the capacitor
with a 20K

5W resistor across the terminals.
NOTE
Discharge the capacitor even if there is a bleeder
resistor across the terminals. There may be an open
in the bleeder resistor preventing it from working
properly.
4. Pull the capacitor out of its holder and replace.
5. Connect the leads to the terminals of the new
capacitor.
6.5 GEARBOX
A. GEARBOX INSPECTION
Inspect the gearbox and listen for unusual noise. A grind-
ing sound generally indicates a bad gear.
B. GEARBOX REMOVAL
1. Disconnect machine from electrical supply before
removing any panels for servicing.
2. Remove the back panel and the side panel.
3. Remove the four nuts holding the support bracket
and remove the bracket.
4. Remove the belts.
5. Remove the bolts while holding the gearbox
assembly and remove it.
C. GEARBOX INSTALLATION
1. Place the gearbox in position from the rear of the
machine. Fasten the bolts through the gearbox
to the rear of the barrel.
2. Mount the pulley on the gearbox shaft and align
with the motor pulley, then tighten the allen head
screws.
3. Install the belt.
4. Use a Burroughs Belt Tension Gauge to set the
tension for the drive belt. Set the belt tension to
40-45 lbs.
5. Using a straightedge, align the drive motor pulley
with the gearbox pulley. Tighten the two allen
head screws.
6. Install the support bracket to the gearbox.
6.6 CONDENSER FAN MOTOR (AIR-
COOLED ONLY)
A. FAN MOTOR REPLACEMENT
1. Disconnect machine from electrical supply before
removing any panels for servicing.
2. Remove a side panel and the header panel.
3. Trace and disconnect the black and white wires
on the fan motor.
4. Loosen the set screw on the fan blade.
5. Remove the bolts from the fan motor mounting
plate and remove the motor.
WARNING
Hazardous voltage
Make sure the machine is off when disassembling
for servicing. The machine must be disconnected
from electrical supply before removing any access
panel. Failure to disconnect power before servicing
could result in death or serious injury.
Rating
Part MFD VAC
Drive Motor Start 231095 500 MFD 125 VAC
Drive Motor Run 231078 50 MFD 370 VAC
Compressor Start 231079 145-174 MFD 220 VAC
Compressor Start 230649 130-156 MFD 250 VAC
Compressor Run 231084 30 MFD 370 VAC