Search found 308 matches

by DrLoch
Mon Oct 01, 2018 6:36 am
Forum: Late model JD crawler technical support
Topic: 350B Hydraulic Pump Shaft
Replies: 2
Views: 128

Re: 350B Hydraulic Pump Shaft

You need to figure out out it twisted the pump shaft off as well or you will be doing that to the replacement as well.
by DrLoch
Thu Sep 13, 2018 6:17 am
Forum: Late model JD crawler technical support
Topic: JD 550c transmission oil loss/transfer
Replies: 1
Views: 151

Re: JD 550c transmission oil loss/transfer

A 450C does move/transfer oil to the finals and back to the main housing so my guess is that a 550C does the same thing. Your manual would explain all that.
by DrLoch
Wed Aug 29, 2018 6:46 am
Forum: Late model JD crawler technical support
Topic: Fuel wont Bleed after Fuel Filter replacement
Replies: 29
Views: 911

Re: Fuel wont Bleed after Fuel Filter replacement

You say that you are cranking the motor over, doesn't your lift pump have a lever on it so you can hand pump the lift pump. Your next problem is going to be a starter at this rate.
by DrLoch
Tue Aug 28, 2018 6:39 am
Forum: Late model JD crawler technical support
Topic: Fuel wont Bleed after Fuel Filter replacement
Replies: 29
Views: 911

Re: Fuel wont Bleed after Fuel Filter replacement

Or replace what you have with something like this, https://www.ebay.com/itm/FUEL-FILTER-WATER-SEPARATOR-120AT-FOR-RACOR-R12T-MARINE-SPIN-ON-HOT-SALE/202123954884?epid=24010342748&hash=item2f0f86cac4:g:ZnQAAOSwnCFaF33X I have a Ferguson 23C Diesel Tractor, fuel filters on it leaked constantly. Replac...
by DrLoch
Mon Aug 13, 2018 7:14 am
Forum: Late model JD crawler technical support
Topic: Banjo style fittings
Replies: 11
Views: 495

Re: Banjo style fittings

Generally your suppose to replace the cooper seal when it's been taken apart. I've go an old Ferguson with a 23C Diesel that I have to replace a lot of those cooper washers when I did a rebuild. Found the cooper seals on fleabay.
by DrLoch
Sun Aug 12, 2018 9:44 am
Forum: Late model JD crawler technical support
Topic: Does fuel filter need to be full
Replies: 8
Views: 386

Re: Does fuel filter need to be full

Mine is also always full, Also check all the usual things;

Vent hole in fill cap is open.
by DrLoch
Wed Aug 08, 2018 6:54 am
Forum: Late model JD crawler technical support
Topic: 1977 JD 450c Loader has no power in reverse
Replies: 20
Views: 1558

Re: 1977 JD 450c Loader has no power in reverse

You need to redo the clutch valve adjustment procedure correctly. If you seen 180 PSI you should not have to add anymore shims. Do yourself a favor and print off all the pertinent information that you need to do this adjustment procedure correctly, all the information has been provided in this post....
by DrLoch
Mon Aug 06, 2018 7:01 am
Forum: Late model JD crawler technical support
Topic: 1977 JD 450c Loader has no power in reverse
Replies: 20
Views: 1558

Re: 1977 JD 450c Loader has no power in reverse

Do not soften the shifts with the pressure adjustment You adjust the speed shift with the needle valve accessed through the side of the transmission, not by lower the clutch pressure. That pressure is needed to keep the clutches clamped up, no different than the automatic transmission in you car. I...
by DrLoch
Fri Aug 03, 2018 6:35 am
Forum: Late model JD crawler technical support
Topic: 1977 JD 450c Loader has no power in reverse
Replies: 20
Views: 1558

Re: 1977 JD 450c Loader has no power in reverse

Depending on if its a normal shift or fast shift, and the accumulator dumping, it always should return to high pressure and just vary in time.
Correct. My guess would be that the clutch pack seals are leaking, internally.
by DrLoch
Thu Aug 02, 2018 6:49 am
Forum: Late model JD crawler technical support
Topic: 1977 JD 450c Loader has no power in reverse
Replies: 20
Views: 1558

Re: 1977 JD 450c Loader has no power in reverse

The clutch free play should be ~ 3-3/4" - 4" before the throwout bearing touches the clutch fingers. The penny is used to shim the relief, each one is good for about 10 - 12 lbs. You can go find the correct shims if you want, but most just leave the pennies in there, makes the value of the machine g...
by DrLoch
Sun Jul 22, 2018 7:23 am
Forum: Late model JD crawler technical support
Topic: Low track power
Replies: 16
Views: 983

Re: Low track power

Hi, No, they aren't the same. The 350 uses a hydraulic reverser without an engine clutch. The 450 uses the High/Low/Reverse transmission behind a standard engine clutch (which is suspect in this case). The machine is a Straight 450 so the steering clutches are dry disc with spring pressure plates. ...
by DrLoch
Sun Jul 15, 2018 7:17 am
Forum: Late model JD crawler technical support
Topic: 450G starting issue
Replies: 5
Views: 409

Re: 450G starting issue

Have you changed/checked the filter? Mine is between the lift pump and inlet of IP. Loosen and/or remove line feeding IP, press handle on lift pump to make sure you have a good flow of fluid. Only other thing would be that the IP pump outlet pressure is low when it gets hot which would mean the head...
by DrLoch
Sun Jul 08, 2018 8:06 am
Forum: Late model JD crawler technical support
Topic: Hydraulic filter
Replies: 8
Views: 1111

Re: Hydraulic filter

No bleeding required
by DrLoch
Thu Jul 05, 2018 8:37 am
Forum: Late model JD crawler technical support
Topic: Need hose specs for JD350 loader hydraulic hose
Replies: 2
Views: 290

Re: Need hose specs for JD350 loader hydraulic hose

Here are the hoses and connections I bought when I did mine (450C), maybe it will help. Here are the quantities, sizes and lengths of hoses I need (2) Bucket Rollback 3/4" Hose 3/4" Male NPTF, Rigid 3/4" Male Straight Thread O-Ring, Rigid 24 1/4" OAL (2) Bucket Dump 3/4" Hose 3/4" Male NPTF, Rigid 3...
by DrLoch
Mon Jun 25, 2018 7:16 am
Forum: Late model JD crawler technical support
Topic: Fan belt on a 450()
Replies: 5
Views: 384

Re: Fan belt on a 450()

I believe I used a 5/8 belt when I replaced my water pump and fan. Also, I put 2 additional around the jack shaft going to the pump so if I shred another belt I have another ready to go.