Bird Technologies 8251 Series-Manual - Manual (Page 21)

11
Chapter 5 Maintenance
This chapter covers cleaning, inspection, trouble-shooting, and specifications for the Bird 8251 series loads.
Troubleshooting
The table below contains troubleshooting information for problems which can occur during normal operation. This
manual cannot list all malfunctions that may occur, or their corrective actions. If a problem is not listed or is not cor-
rected by the listed actions, notify a qualified service center.
Maintenance
Problem Possible Cause Correction
Leaking coolant Loose clamping band Tighten the clamping band
Defective or improperly installed
front O-ring Replace the O-ring
(See “Load Resistor” on page 15)
Defective or improperly installed
rear O-ring Replace the O-ring
(See “Rear Seal” on page 14)
High or low DC
resistance Loose RF input connector Tighten connector
Faulty RF input connector Models with “QC” type connectors: Replace
connector (See “RF Connector” on page 13)
All other models: Return the unit for service
Faulty resistor Replace the resistor
(See “Load Resistor” on page 15)
Overheating radiator RF power too high Lower RF power (See “Specifications” on page 17
for maximum RF power)
Coolant level too low Check the coolant level. Add coolant if necessary
(See “Coolant” on page 12)
Coolant degraded Replace the coolant
(See “Coolant” on page 12)
Faulty resistor Replace the resistor
(See “Load Resistor” on page 15)
WARNING
Never attempt to connect or disconnect RF equipment from the transmission line while RF power is being
applied. Leaking RF energy is a potential health hazard.
WARNING
Disconnect the unit from all power sources before servicing. The unit may be energized from multiple sources.
The potential for electric shock exists.