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Hi, I too have a jd970 with 7X16 field tires in the front and would like to go with a wider tire on the same rim. Of course I would also need to keep the front to back tire ratio in line while making the change to the wider track.
Bottom line is, what front field tire, if any, would give a wider tread while holding to the exact or close circumfence of the OEM 7X16????

thanks,
george

john deere 970 tires and rims
John Deere Tractors
Replies 20 Post by george, keoke

Hey guys, going with a higher wattage bulb is a good idea PROVIDING the new bulb does not hot enough to melt or warp your lens and reflector.

Happy holidays,
george, keoke

High intensity bulbs
Kubota Tractors
Replies 6 Post by george, keoke

Kenny, you were absolutely correct about the reg-gen circuit not coming on until you get past the half way mark when pushing the joy-stick to the right for dumping. This info is not in the tractor or loader operators manual. The shop manual (I have one) shows that JD uses two different SCV on the 70 series tractors, one with no regen (Japanese) and the other one having both a non-regen and regen capability (USA) built into the same valve. It does explain the difference nor does it say anything about the shift at the half way mark.
Bucket dump time using re-gen is about three time faster then no-regen.
There is an ever so slight detent at the divide mark when moving the stick to the right on dump, unless you know it is there you would not feel it. I have been using this loader for two years and never had a clue it was there.
The upside of all of this is that getting a 4 in 1 bucket plumbed in with a solenoid and thumb switch will be easy. I plan not to use the built in dump stop at first so that I can try for the best of both worlds. If I can't develop the right touch on the stick then I will go with the divider stop.

Thanks for bailing me out,
george

4 in 1 bucket
John Deere Tractors
Replies 10 Post by george, keoke

Ken, could you give us the e-mail address and phone number of Metkit?
Do you know if they make buckets for other backhoes?

Thanks,
george

Backhoe narrow bucket width
Loaders Back Hoes
Replies 8 Post by george, keoke

Hi folks, I do the same thing as Kim expect that I used a 1.5" piece of electrical pvc long 90 degree sweep (schd 40 or 80).
Hope this helps,
george, keoke

trenching sprinkler lines
Operating and Attachments
Replies 12 Post by george, keoke

When checking starter trigger circuit try this. Start at ignition switch with a test light across the bat and start terminals. Light should be on if you have a hot at bat and continuity from start term to solenoid. If it not on then you have either no B+ at key switch or an open between key and solenoid. If light is on, when you hit the start position the light should go off complete. If it does not, then you have an open in the key switch. If it goes dim, but not off, then you have high resistance in key switch. To find opens between key switch and solenoid hook wire end of test light to B+ and begin probe at solenoid working towards key switch, light should come on at each test point, where it stops coming on is where the open is.
Hope this helps.
regards,
george, keoke

Starter failure
Parts and Repair
Replies 5 Post by george, keoke

Hey guys, here is an interesting question. Will blocking the clutch pedal down while tractor is stored weaken the pressure plate springs? As you know, these springs will remain fully compressed while clutch pedal is depressed. Question is, will they return to full strength after being held in this position for a extended periods of time??

Regards,
george, keoke

Non-release clutch on JD 970 after two weeks of non-use
John Deere Tractors
Replies 7 Post by george, keoke

Roger, your memories of the VR chattering are right on the mark. The cutout relay on the VR has two sets of windings. One winding in parallel (shunt) and another one heavy gauge in series. The shunt winding is not polarity SENSEITVE but the series one is. The shunt winding is used to initialy pull the contacts together then as the current flows from gen to bat through the series winding the contacts are held together tighter with the pull of both the series and shunt magnetic fields pulling together. However when the gen voltage falls below the bat voltage (idle) then the current flow through the series winding is REVERSED and now the magnetic fld from the series winding is PUSHING up on the relay armature overcoming the shunt windings down pull and forcing the relay open.
This opens the circuit between bat and gen. The chattering comes ONLY from a cutout relay on a gen that has not been polarize correctly. This due to the fact the series winding is getting current flowing through it in the wrong direction (backwards) when coming from the gen and in the right direction when coming from the battery. This causes the relay to latch and unlatch at a rapid rate causing the chattering that you hear. Bottom line, regulators do not need to be polarize but the will fink (chattering) if you do not polarize the gen to get the right polarity from the output terminal.
On alternators the cutout relay is replaced by diodes which serve as a one way check valve (alt to bat) between the charging unit and the bat.
Roger, look up the left hand rule on the relationship of current flow to magentic fields through a conducter.
Hope this helps guys.
regards,
george, keoke

positive battery ground
Parts and Repair
Replies 19 Post by george, keoke