Replacement
Note: All fuses listed in the following table are field replaceable 250-Volt, 1/4 x 1-1/4-inch, tubular Slo Blo unless otherwise
indicated.
Power Motor Relay PCB Fuses
Ref Des Capacity Part Number Purpose
CB1 2A 55-700463-00 SPST 250 VAC PC-mounted breaker. NOT FIELD REPLACEABLE. Trips if
stator circuit sticks in 120 VAC (start) mode longer than 15 seconds.
F1 .25A 67-132350-00 Protects the 36 VDC line to the keyswitch/column lift circuitry. This is not a Slo
Blo fuse.
F2 2A 67-135420-00 Protects spare +12-Volt line at P12 pin 4
F3 2A 67-135420-00 Protects +12-Volt line to IGBT fan B1
F4 1A 67-135410-00 Protects +12-Volt lines at P11 pins 3 and 4. Pin 3 supplies power to cooling fan
for the X-ray tube
F5 2A 67-135420-00 Protects the CCD camera cooler power.
F6 1A 67-135410-00 Protects spare +5 Volts at P11 pins 1 and 2.
F7 .5A 67-132350-00 Protects +5 Volts supplied by P9 pin 1 to the Handswitch.
R2 10J 55-199832-00 Fusible resistor. NOT FIELD REPLACEABLE. Protects relay K1 contacts from
switching transients.
R4 10J 55-199832-00 Fusible resistor. NOT FIELD REPLACEABLE. Protects relay K2 contacts from
switching transients.
R11 10J 55-199832-00 Fusible resistor. NOT FIELD REPLACEABLE. Protects relay K15 contacts from
switching transients.
26
Service
Periodic Maintenance
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