Search found 83 matches

by Jim B
Wed Jul 18, 2018 7:06 am
Forum: Early model JD crawler technical support
Topic: jd440ic cam pump
Replies: 23
Views: 483

Re: jd440ic cam pump

Hi dtoots1, Yes what you call the bypass line is what I call the return line. They do make special high pressure filters which can be used on the pressure side of a pump; but the filter you have does not appear to be that type. Too further Stan's reason for not putting a filter in the pressure line;...
by Jim B
Wed Jul 18, 2018 5:28 am
Forum: Early model JD crawler technical support
Topic: jd440ic cam pump
Replies: 23
Views: 483

Re: jd440ic cam pump

Lavoy has an excellent point on the filter location. It might have worked, but it should be in the return to the tank. To me it would appear someone made/reworked the line to install the filer there. From your photos it appears the metal sleeve, O-rings, and quad ring were captured under the nut, in...
by Jim B
Tue Jul 17, 2018 4:34 pm
Forum: Early model JD crawler technical support
Topic: jd440ic cam pump
Replies: 23
Views: 483

Re: jd440ic cam pump

By the sounds it appears you believe the suction line is the original one. If that is the case, by the parts book, the seal in those fittings is supposed to be a rubber "bushing" type sleeve, not O-rings. Those are available at JD (see my last post to your other thread on this problem for the part n...
by Jim B
Thu Jul 12, 2018 11:06 am
Forum: Late model JD crawler technical support
Topic: JD 550G tramission filter location
Replies: 1
Views: 57

Re: JD 550G tramission filter location

Have you looked under the floor boards on the right side? It looks like there is a short inch hose between it and the transmission pump from looking at the parts catalog.
by Jim B
Thu Jul 12, 2018 5:06 am
Forum: Early model JD crawler technical support
Topic: Track Adjuster installation
Replies: 10
Views: 181

Re: Track Adjuster installation

Should be .375" diameter. Part number 405R subs to R42849, if you have to go to John Deere.
by Jim B
Thu Jul 12, 2018 5:00 am
Forum: Late model JD crawler technical support
Topic: JD 550G transmission filter
Replies: 2
Views: 95

Re: JD 550G transmission filter

Good morning, Your post would likely get more review and input if you put it in the late model crawler forum. There are some here who have or have had 550's and may help you more. I don't know where the transmission filter is on a 550G but think it is in the same compartment as the hydraulic filter ...
by Jim B
Wed Jul 11, 2018 4:12 pm
Forum: John Deere crawler FAQ's
Topic: Crawler Service Manual and Parts Catalog list
Replies: 9
Views: 6682

Re: Crawler Service Manual and Parts Catalog list

To add to the list here are the John Deere manuals I have for my 450E crawler:

Operator's manual: OMT 81347
Parts Catalog: PC 2036
Operation Tests Technical Manual: TM 1330 OP
Repair Technical Manual: TM 1330 RE
by Jim B
Wed Jul 11, 2018 2:55 pm
Forum: Early model JD crawler technical support
Topic: jd440ic charging issues & hyd cyl issues
Replies: 103
Views: 2678

Re: jd440ic charging issues & hyd cyl issues

Hi dtoots1, If you have the original suction line between the tank and pump and want to get the original parts. The packing sleeves, for both ends of that line, to go in those fittings are JD # M3189T (.844" ID, 1.125 OD, .625" long, 80 durometer HYCAR material, not cheap - about $18.75 each). Those...
by Jim B
Tue Jul 10, 2018 5:33 am
Forum: Early model JD crawler technical support
Topic: jd440ic charging issues & hyd cyl issues
Replies: 103
Views: 2678

Re: jd440ic charging issues & hyd cyl issues

Not including the lines out to the cylinders from the control valve. There should be a line from the tank to the pump inlet (suction). Any leak in that line would allow air to enter. Then a line from the pump to the control valve (pressure). There should be a return line from the control valve back ...
by Jim B
Mon Jul 09, 2018 7:34 am
Forum: Late model JD crawler technical support
Topic: Final drive
Replies: 5
Views: 126

Re: Final drive

I don't have a 450C manual to check however, my 450E manual calls for using sealant there and at some other points on the final drive. I think you have "wet" steering clutches like the E model. If that is the case, I would think you need sealant.
by Jim B
Sun Jul 08, 2018 10:48 am
Forum: Late model JD crawler technical support
Topic: Hydraulic filter
Replies: 8
Views: 861

Re: Hydraulic filter

Use the dipstick under the seat to check the transmission oil level. You can add oil (Hy-Gard or equivalent) there if needed. You are just starting on maintenance items to look at. If you don't have manuals you should get at least the operators (OM) to start with as it gives you information on most ...
by Jim B
Thu Jul 05, 2018 5:26 am
Forum: Early model JD crawler technical support
Topic: 40c Serial Number Tag
Replies: 3
Views: 125

Re: 40c Serial Number Tag

You might use a high strength Loctite type product (red thread locker, or retaining compound) on them for insurance, if you want.
by Jim B
Thu Jul 05, 2018 4:43 am
Forum: Late model JD crawler technical support
Topic: Need hose specs for JD350 loader hydraulic hose
Replies: 2
Views: 169

Re: Need hose specs for JD350 loader hydraulic hose

Best I can say at present would be to find the part number for the hose you need and check with your JD dealer. If they don't have it, or can't make one, they may be able to tell you the type of ends and length. Some of the hose info shows up on the parts catalog info on line but the ones I looked a...
by Jim B
Thu Jul 05, 2018 4:28 am
Forum: Late model JD crawler technical support
Topic: Exhaust leak from turbocharger adapter Jd 450C
Replies: 3
Views: 142

Re: Exhaust leak from turbocharger adapter Jd 450C

The fit between the adapter, turbo and elbow are slight tapers if I remember right. You might be able to move the elbow towards the turbo to tighten up on the adapter, holes where the elbow mounts appear to be slotted in the parts diagram. Maybe you can slot them a bit more if needed. You may need a...
by Jim B
Wed Jul 04, 2018 8:35 pm
Forum: Early model JD crawler technical support
Topic: 40c Serial Number Tag
Replies: 3
Views: 125

Re: 40c Serial Number Tag

I am guessing at this; but I think they used screw nails (aka drive screws); many manufacturers used those to install metal tags. If you can see them broken off you may be able to tell the diameter if you lightly grind them flat to the housing. They can go in blind holes, as long as the holes are de...