Guy, I agree with Randall, your power supply is probably totally
inadequate. Even a small 12v gellcell battery is not really up to the task.
A lawnmower battery (or larger) would be good. Use an inline fuse near the
negative terminal of the battery for safety too. 5 amps ought to be OK.
I bet that once you get sufficient current delivery, then you will see the
motor working properly.
-Tony
-----Original Message-----
Message: 3
Date: Mon, 10 Jan 2011 19:05:51 -0600
From: "G.D. Huggins" <guy at genfiniti.com>
Subject: [TR] Wiper Motor Question
To: RedRiverTriumph at yahoogroups.com, triumphs at autox.team.net
All,
I have recently rebuilt the Lucas DR3A wiper motor from the TR4A.
I am attempting to bench test and just cannot seem to get it working.
I am drawing heavily on this
(http://www.mgaguru.com/mgtech/electric/et217.htm) web site for information.
I am using a AC to DC converter, which puts out 15 v, as the power source on
terminal 2.
I hook up the positive (+) to terminal 2, the negative (-) to the "E"
terminal.
This should create an attraction between the positively charged parts
(terminals, field coil, armature, brushes, commutator) and the negatively
charged housing.
When I add the third wire from terminal 1 to the "E", taking it to ground,
nothing happens.
Any ideas? I suspect I am shorting somewhere, or the power source isn't
strong enough to make it run.
Cheers,
Guy D. Huggins
1965 Triumph TR4A
CTC 63569LO
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