Grimes landing light
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3958v
- Posts: 545
- Joined: Tue Apr 23, 2002 12:00 am
Grimes landing light
Wondering if anyone has experience with a grimes landing light. Mine recently came down but does not want to retract a wire has become disconected and I am having trouble deciding where it should go. There is a capacitor in the wiring leading to the light. There are three wires leading to the light. Two light gauge wires and one heavy wire which appears to be hot all the time. The light wires are only hot when the light switch is in the extend or retract position. There are points which are spread when the light reaches its full travel in either direction. My problem is that I am having trouble deciding how the capacitor fits into the picture. I have the parts manual with a wiring diagram but am having trouble figuring it out. Bill K
Polished 48 170 Cat 22 JD 620 & Pug
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GAHorn
- Posts: 21301
- Joined: Fri Apr 12, 2002 8:45 pm
Re: Grimes landing light
Capacitors are usually used to prevent burning the points/contactors switches. They act as electrical shock-absorbers.
'53 B-model N146YS SN:25713
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.
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n2582d
- Posts: 3013
- Joined: Mon Apr 29, 2002 4:58 am
Re: Grimes landing light
See page 5 of the following link for details on the capacitors. Apparently they were used for noise suppression back in the days of low freq. radios. http://www.cessna120-140.org/forum/viewtopic.php?t=2148
Gary
Cessna® is a registered trademark of Textron Aviation, Inc. The International Cessna® 170 Association is an independent owners/operators association dedicated to C170 aircraft and early O-300-powered C172s. We are not affiliated with Cessna® or Textron Aviation, Inc. in any way.