Rf load re sis tor as sem bly 12, Re as sem bly 12, Rf in put con nec tor 12 – Bird Technologies 8141 User Manual

Page 22: Cool ant oil & dia phragm 12, Rf load resistor assembly, Reassembly, Rf input connector, Coolant oil & diaphragm

c. Remove the diaphragm cover and lift

the diaphragm from the back end of

the radiator tank. The diaphragm

should be soft and pliable. If it is hard

or shows signs of surface cracks, re-

place it. (Bird P/N 2430-015).

d. The coolant level should be about one

inch below top of the cylinder. If oil

appears contaminated, replace. Use

only the specified coolant, Bird P/N 5-

1070.

RF Load

Resistor

Assembly

To replace the load resistor assembly proceed as follows:

a. Stand the radiator vertically with RF

input connector up.

b. With a screwdriver, loosen the 10-32

clamping screw on the clamp band

that holds the RF section in place. Re-

move the clamping band.

c. Lift the RF section straight up and out

of the radiator tank. Hold for a short

time over tank to allow oil to drain

back in.

d. Inspect the O-Ring seal just inside the

sloped flange of the mounting ring. Re-

place this seal, Bird P/N 5-230, if it

shows any evidence of cuts or deterio-

ration such as hardening or surface

cracks.

Reassembly

RF Input

Connector

To install a new connector, reverse the procedures in para-

graph RF Input Connector, Disassembly. Be sure that the

projecting center contact pin on the connector is carefully

engaged and properly seated with the mating socket of the

load resistor input.

Coolant Oil &

Diaphragm

Inspect the diaphragm and coolant oil as indicated in disas-

sembly.

a. Put the diaphragm back in place on

the radiator tank.

Bird Model 8141 Termaline Load Resistor