Bird Technologies 8255 User Manual
Page 28
![background image](/manuals/583757/28/background.png)
3. Loosen the 10-32 x 1-1/2 inch screw on the
clamping band until the band is free. Remove the
band.
4. Grasp the RF connector and slowly lift the load
resistor assembly out of the radiator tank to al-
low the excess coolant to drip back in.
5. Before replacing the load assembly (Model 8251,
P/N 8890-050; Model 8252, P/N 8891-050) check
the O-Ring seal to be sure it is properly placed
and is in good condition. It should be free of
twists and positioned evenly around the beveled
flange of the resistor housing. Furthermore, it
should still be soft and pliable and not hard or
showing signs of surface cracks.
Radiator
Handle
The radiator handle slides on and is held in place by the
two retaining studs that are riveted to the fins. It may be
removed or replaced as follows:
1. Gently pry apart the fins next to each stud just
enough to clear the handle thickness. Use a
large screwdriver, the blade covered with a rag,
or a suitable wooden stick.
2. With the fins pried apart sufficiently, slide each
leg of the handle off its respective stud.
Assembly
RF Connector
To install a new connector, reverse the disassembly proce-
dure. Be sure that the projecting center pin on the con-
nector is carefully engaged and properly seated with the
mating socket of the load resistor input.
Diaphragm
and Coolant
Oil
To assemble, reverse the disassembly procedure.
RF Load
Resistor
Assembly
To assemble, reverse the disassembly procedure.
Radiator
Handle
To assembly, reverse the disassembly procedure.
Bird Model 8251/52/55 Termaline Coaxial Load Resistor
16