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  #1  
Old 12-12-2018, 10:31 PM
yingpin yingpin is offline
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Default Intro to a random 1715

Good evening everyone. First post here and I wanted to introduce myself to you all. Eric from Maryland. Today I impulsively picked up an old Cub Cadet 1715 LT. I got the thing for $50 and thought that maybe I could use this to run attachments through the yard. I have a zero turn, Troy Built, and would rather use a tractor to pull the aerator, dethatcher, dump cart (for mulch and wood) and I am hoping that this thing can pull my 22 ton log splitter with a ball hitch???

The good....
It runs, shifts through all 5 gears and reverse, brake works, and it is in good shape cosmetically.

The bad...
Owner said the PTO wont engage the mower deck (not using it for mowing anyway)
Electrical was messed with and the tractor starts right up with the key on and when you use a jump box on the neg battery wire and positive on the starter post. It stays running but will not start with the key.

Anyway, I have a lot of investigating to do to get this to start with the key, get headlights working, dash lights and gauges working, etc. Updates to follow and your suggestions are welcome.

I know that this is not a desirable tractor but it was cheap and could potentially do what I need. Not sure if it can push snow or pull the splitter but we will see.

17 HP Kohler magnum 691cc
5 speed Gear
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  #2  
Old 12-13-2018, 06:16 AM
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First, welcome to OCC.....

The PTO switch has to function correctly to start the engine. In the "off" position it: (A) deck is off, and (B) allows engine to start. In the "on" position it is the opposite.

I would start there.
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  #3  
Old 12-13-2018, 08:11 AM
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ol'George ol'George is offline
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Welcome to OCC!
It will pull your yard implements ok but a 22 ton log splitter will need a very large 300++ hp farm tractor.
22 tons it 44,000 pounds, and once it is moving, it is going to be very difficult to stop,----that is huge!!
Can't say I've ever seen/heard of a log splitter that big!!!
I thought mine was bigger than most with a 70 Hp 4 cyl engine.
Yours is more like a large car crusher in a salvage yard.!!
We need pictures of that monster
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Old 12-13-2018, 10:50 AM
yingpin yingpin is offline
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Quote:
Originally Posted by ol'George View Post
Welcome to OCC!
It will pull your yard implements ok but a 22 ton log splitter will need a very large 300++ hp farm tractor.
22 tons it 44,000 pounds, and once it is moving, it is going to be very difficult to stop,----that is huge!!
Can't say I've ever seen/heard of a log splitter that big!!!
I thought mine was bigger than most with a 70 Hp 4 cyl engine.
Yours is more like a large car crusher in a salvage yard.!!
We need pictures of that monster
Sorry, I guess I should clarify. The log splitter is a CountyLine 25ton (log splitting force) machine. It weighs 495 lbs total. I wanted to tow this behind the zero turn but the metal for the attachment "hitch" is very thin and it has too much tongue weight given the location of the hitch. I only have about 1.5 acres but I split at the far end of the yard and have to move it back and forth.

In terms of the PTO.....Please remember that this is my learning machine and I am no mechanic and have little experience with small engines. As I stated, the tractor when jump started stays running. There is a red wire and a blue wire near the positive batter wire but I cannot tell where they went at first glance. The engine wont crank with the key at all, even with the PTO in the off position. I thought that adding terminal connections to the battery wires and putting a new batter in would be a quick fix but there does not seem to be power getting to the ignition when I hooked it all up.

Also, by accident I touched the blue wire to the batter terminal and it had a spark and I could hear something click/clunk as if engaging or disengaging. I am pulling some wiring diagrams to see if I can find out more.

I looked under the ignition this morning and it looks like wires have been cut at some point. Here is a pick but I do not know what I am looking at....yet. I have spend all of 5 minutes messing with it.
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  #5  
Old 12-13-2018, 11:02 AM
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Is the shifter on the side of the steering wheel??? They have a habit of wearing out and jamming... fyi...
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Old 12-13-2018, 11:55 AM
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Sure looks like some serious wiring issues. If you need a Wiring Diagram I can send you one.
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Old 12-13-2018, 12:05 PM
yingpin yingpin is offline
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Quote:
Originally Posted by R Bedell View Post
Sure looks like some serious wiring issues. If you need a Wiring Diagram I can send you one.
I downloaded one online but understanding it is going to be my challenge. First step is trying to understand what is happening when I jump start it and what should be duplicated, from a wired sense, to start it with the key.

How can I determine the year of this thing? I found something online that shows a serial number date of 1965 but that may be specific to IH tractors. I am thinking an 88 based on some poking around here.

Model#
138261100

Serial#
128547

MFG. Date
L307G
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Old 12-13-2018, 12:16 PM
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Your 1715 rolled out of the Factory in Dec 1987.

Quote:
First step is trying to understand what is happening when I jump start it
Again...."In the "off" position it: (A) deck is off, and (B) allows engine to start. In the "on" position it is the opposite."

The PTO Switch is the first place to start.
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  #9  
Old 12-15-2018, 07:22 PM
yingpin yingpin is offline
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Quote:
Originally Posted by R Bedell View Post
Your 1715 rolled out of the Factory in Dec 1987.



Again...."In the "off" position it: (A) deck is off, and (B) allows engine to start. In the "on" position it is the opposite."

The PTO Switch is the first place to start.
So the PTO switch only has two connections and the bottom one is connected with a black wire that runs down along the engine into a factory connector below the starter. The top "prong" does not have anything present. Looking at the wiring diagram I found, it looks like it should be a 4 prong switch. Not sure if I can get this to work with the existing switch or not. Top switch should run ....
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  #10  
Old 12-16-2018, 06:01 AM
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The correct PTO Switch (925-0893) has Five (5) terminals to it.

Attached is a 1715 Start Circuit Diagram. IF......it is wired correctly and has the correct parts. It is drawn in the proper sequence and wire color codes.

IF......everything is wired correctly and you have the correct OEM parts, then the proper starting sequence would be to have the Brake Pedal Depressed, the PTO Switch in the "off" position, then the Starter Solenoid will engage once the Ignition Switch is turned to the start position.

BTW. The blue wire you reference is for the Lights and has nothing to do with the Start Circuit. (That is assuming the wiring hasn't been modified)
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File Type: jpg 1715 Start Cir.jpg (10.2 KB, 100 views)
File Type: jpg 925-0893.jpg (17.8 KB, 98 views)
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