Search found 2847 matches

by Stan Disbrow
Fri Feb 21, 2014 1:46 pm
Forum: Early model JD crawler technical support
Topic: Possible New Owner of 1010
Replies: 50
Views: 40349

Hi, If the glow plug is closed when cold, but opens when it heats up, then you need to watch the current. Otherwise, the current draw will be relative to the resistance. Not that it really any more difficult to stick your meter probes on the feed wire and the plug tip than it is to stick them betwee...
by Stan Disbrow
Fri Feb 21, 2014 8:15 am
Forum: Early model JD crawler technical support
Topic: Possible New Owner of 1010
Replies: 50
Views: 40349

Hi, Glow plugs are resistors, so checking them is easy with an ohmmeter. Just pull the power lead off and measure the resistance between the power terminal and ground. Now, what it ought to read, I don't know as that varies by plug make and type. Dozens of ohms to a couple hundred, I would expect. H...
by Stan Disbrow
Thu Feb 20, 2014 2:50 pm
Forum: Early model JD crawler technical support
Topic: Interesting Find...
Replies: 5
Views: 5862

Hi,

You know, they look like plier handles..... :shock:

It would not be the first time I have seen tools, or what is left of them, inside places they ought not to be.

Stan
by Stan Disbrow
Sat Feb 15, 2014 5:13 pm
Forum: Early model JD crawler technical support
Topic: 420 running issues, spark, battery, points?
Replies: 49
Views: 31945

Hi,

Ah ha! All red wire is fine, if you use Brady wire marking tags on them all to figure out which go where.... ;)

As far as electrical engineering goes, they skipped Ignition Systems 101 when I was learning it. I got my schooling in that field way earlier. :)



Stan
by Stan Disbrow
Sat Feb 15, 2014 11:35 am
Forum: Early model JD crawler technical support
Topic: Snow Dozing
Replies: 88
Views: 64521

Hi, We had 2-3 inches on Tuesday, followed by 4-5 on Wednesday. It was hard to tell as it was melting from underneath all the while. It was freezing rain on Thursday, but I used a backblade on my 5103 (has a canopy, the M doesn't) and plowed slush. Heck, it was more liquid water than snow! Yesterday...
by Stan Disbrow
Sat Feb 15, 2014 11:30 am
Forum: Early model JD crawler technical support
Topic: 420 running issues, spark, battery, points?
Replies: 49
Views: 31945

gregjo1948 wrote:Hey Stan--If you're adding a velocity stack, you might as well install racing slicks! :lol: gregjo1948
Hi,

I saw a 420c with the rubber blocks on the pads doing a tractor pull. Off one of the recent Yoo Toob links, I think. So, for a crawler I think those are slicks! :P

Stan
by Stan Disbrow
Sat Feb 15, 2014 5:19 am
Forum: Early model JD crawler technical support
Topic: 420 running issues, spark, battery, points?
Replies: 49
Views: 31945

Hi, Last night, I got to poking around some old car chat boards, and there was some chatter about issues with new points in old cars. It seems a lot of newly made points are using sliver plated copper for the contacts and those need dressing a lot more frequently. Perhaps this is what has been happe...
by Stan Disbrow
Fri Feb 14, 2014 5:23 pm
Forum: Early model JD crawler technical support
Topic: 420 running issues, spark, battery, points?
Replies: 49
Views: 31945

Hi, Ok. No 6v system had a resistor between battery and coil. None. Ever. The coil.*is* 6v. Early 12v systems had a 6v coil. So to not fry the coil, they used a resistor between the battery and the coil. To ensure that 6v went to the 6v coil when the 12v battery was under starter load, they had a by...
by Stan Disbrow
Fri Feb 14, 2014 5:04 pm
Forum: Early model JD crawler technical support
Topic: 420 running issues, spark, battery, points?
Replies: 49
Views: 31945

Hi, The contact points were made with a Silver contact on the Negative side, and a Copper/Silver alloy on the positive side. This reduces electromigration between the contacts. If the polarity is reversed, then electromigration is accelerated. It has to do with electron flow between metals higher an...
by Stan Disbrow
Thu Feb 13, 2014 2:18 pm
Forum: Late model JD crawler technical support
Topic: New guy with a JD350
Replies: 18
Views: 13333

Hi,

Yikes! Yeah, that doesn't show up in the photos.

Stan
by Stan Disbrow
Thu Feb 13, 2014 8:55 am
Forum: Late model JD crawler technical support
Topic: New guy with a JD350
Replies: 18
Views: 13333

Hi, Those bolts keeping the tilt adjust wedges in are not supposed to be there. They should have much shorter roll pins. If you remove those long bolts sticking out, there should be clearance enough for the main pins on the angle adjustment arms to slip through the blade frame. The roll pins just ke...
by Stan Disbrow
Tue Feb 11, 2014 8:38 am
Forum: Late model JD crawler technical support
Topic: New guy with a JD350
Replies: 18
Views: 13333

Hi,

Oh yeah! You either fork over the dough up front to get a good one, or fork it over later in parts an labor. Either way you are 'forked'! :P

Hopefully your issue is as easy as I think it is.... ;)

Stan
by Stan Disbrow
Tue Feb 11, 2014 6:19 am
Forum: Late model JD crawler technical support
Topic: New guy with a JD350
Replies: 18
Views: 13333

Hi,

Looks to me like the long screws, which have magically replaced roll pins, on the ends of the tilt wedges are hitting the blade frame. It has been a long time since I had my 350 with one of those blades, but IIRC those wedges wound right up against the frame when angled.

Stan
by Stan Disbrow
Fri Feb 07, 2014 5:27 am
Forum: Early model JD crawler technical support
Topic: #63 manual angle blade ?
Replies: 5
Views: 4573

Hi,

What the heck? I would ask how do they *do* that, but I have been around too long. I know there are no more clever folk than idiots. As in 'hey, I cant pull this arm out (or, push it back in). Where is that fat oak tree to pull (or push) with?'

Stan
by Stan Disbrow
Tue Feb 04, 2014 1:34 pm
Forum: Early model JD crawler technical support
Topic: 420 running issues, spark, battery, points?
Replies: 49
Views: 31945

Hi, The resistor on the VR sets the point for the voltage relay to open and close the field coil feed to the generator. As that relay opens and closes, it kicks the generator output up and down to hold the battery at full charge voltage (which is in the region of 7.5 volts). If a machine has been co...