-Jim Lill http://www.vectorbd.com/users/jpl
On Sun, 12 Oct 1997, Ocean Surveys 6 wrote:
> Finally got to my 505 blower motor control today. The transistor was bad
> , emitter/base junction open. I was able to determine from the
> base/collector junction that the transistor is a PNP. Radio Shack has a
> replacement transistor. MJ2955 stock # 276-2043, $1.99. Rated at 60 volts
> and 15 amps. 150 watts
> The transistor/relay assy. is to the rear of the right front fender.
> I cut the insulating material with a very sharp knife about 6 inches
> from the fender. REmove 2 screws and out comes the whole thing.
> Drill out the rivets holding the transistor to the heat sink, desolder the
> leads and the transistor comes out. Remove oxide from the heat sink,
> grease the transistor mounting flange insure good thermal contact and
> mount with #6-32 screws using a insulating washer on the top screw to
> prevent shorts. Remount the control assy.
> The mounting screws were loose when removing the control assy. Bad ground
> could have caused the problem.
> Spencer
> Preston, Ct.
> '81 505gl td
>