Search found 595 matches

by JWB Contracting
Wed Aug 16, 2023 7:02 am
Forum: Late model JD crawler technical support
Topic: 550G
Replies: 2
Views: 3247

Re: 550G

Slack the brakes off manually. There is a pipe plug on the outside about the tracks, should take a 3/4” extension. Then use a screwdriver to rotate the adjuster.
by JWB Contracting
Thu Jun 01, 2023 9:28 am
Forum: Late model JD crawler technical support
Topic: 450B Ring gear hub
Replies: 1
Views: 3757

Re: 450B Ring gear hub

If you can handle shipping from Alberta, Canada I can look this weekend. I know we have a tranny that was cracked and rear end will be intact.
by JWB Contracting
Wed May 31, 2023 9:09 am
Forum: Late model JD crawler technical support
Topic: 350C Undercarriage Overhaul
Replies: 12
Views: 9233

Re: 350C Undercarriage Overhaul

How we would tackle this repair - remove all track pads - cut rails off with a torch - remove idlers - remove track frames, easier to remove rollers and extract broken bolts - remove sprockets - replace bottom rollers Reverse order for install Installing the master pin is not horrible, easier than r...
by JWB Contracting
Mon Oct 03, 2022 7:33 pm
Forum: Late model JD crawler technical support
Topic: 455E with an issue...whining sound
Replies: 10
Views: 4906

Re: 455E with an issue...whining sound

What I meant was direct connect the hoses with regular fittings, eliminating a possible quick coupler issue. You need to find the problem and stop running your machine. My next step would be to remove the power beyond fitting in your loader hydraulic valve and install a normal plug. This would elimi...
by JWB Contracting
Sat Oct 01, 2022 9:38 pm
Forum: Late model JD crawler technical support
Topic: 455E with an issue...whining sound
Replies: 10
Views: 4906

Re: 455E with an issue...whining sound

Check the quick connects for your backhoe. Best remove them and connect with full flow fittings to ensure the connectors are not the problem. This was one of the first lessons on running a Deere with a hoe as will blow up a hydraulic pump real quick. The vibration is your relief valve hitting its max.
by JWB Contracting
Fri Sep 30, 2022 7:36 pm
Forum: Late model JD crawler technical support
Topic: 450e steering clutch pressure manifold
Replies: 2
Views: 2097

Re: 450e steering clutch pressure manifold

You will need to rebuild your clutch assembly or buy a new one. We get them turned down and sleeved which saves some money. Best to replace the oring and all piston rings, they are not that expensive.
by JWB Contracting
Fri Sep 30, 2022 7:32 pm
Forum: Late model JD crawler technical support
Topic: use of ether to try and start,
Replies: 7
Views: 3450

Re: use of ether to try and start,

Are you stepping the clutch pedal to the floor? Is the mechanical clutch functioning, if you shift between gears 1 to 4 with the engine running then it working. Without the main mechanical clutch there is additional drag to spin the transmission A Deere engine needs to be turned over quickly to star...
by JWB Contracting
Thu Jul 07, 2022 10:06 pm
Forum: Late model JD crawler technical support
Topic: 455E with an issue...whining sound
Replies: 10
Views: 4906

Re: 455E with an issue...whining sound

The whining is your relief valve in your hydraulic valve. The hoses for your backhoe are either not connected or improperly connected. You will be asking where to get a pump if you run it like this. The backhoe is run via a power beyond circuit off the main valve. Could also be your return to level ...
by JWB Contracting
Wed Jun 29, 2022 7:18 am
Forum: Late model JD crawler technical support
Topic: Power beyond sleeve for backhoe attachment
Replies: 4
Views: 2361

Re: Power beyond sleeve for backhoe attachment

Best to phone a wrecker and get the power beyond fitting, or buy the one from the guy you got the hoe from.
by JWB Contracting
Tue Jun 28, 2022 10:35 am
Forum: Late model JD crawler technical support
Topic: Power beyond sleeve for backhoe attachment
Replies: 4
Views: 2361

Re: Power beyond sleeve for backhoe attachment

From what I’ve seen loader use a power beyond valve installed in the loader valve. It directs high flow oil to the backhoe valve, then returns to the tank. On dozers, a diverter valve is used as the dozer valve isn’t made for high flow. Dozers have smaller pumps as well. We didn’t like the diverter ...
by JWB Contracting
Fri Jun 03, 2022 9:09 pm
Forum: Late model JD crawler technical support
Topic: 1/2” chain & 9/16” pads
Replies: 11
Views: 4612

Re: 1/2” chain & 9/16” pads

The pads would be loose in the first 1.000 feet.

We have extra large hole 450 pads but nothing good in 1/2”.
by JWB Contracting
Sat May 28, 2022 10:27 pm
Forum: Late model JD crawler technical support
Topic: Engine clutch has oil on it
Replies: 3
Views: 2320

Re: Engine clutch has oil on it

Sounds like the front seal is leaking on the HLR. Have since this a couple times. Milky HLR oil is common from either condensation or cracked transmission case. Hope it’s the first option.
by JWB Contracting
Sat May 28, 2022 10:23 pm
Forum: Late model JD crawler technical support
Topic: jd 350 WINCH
Replies: 4
Views: 2816

Re: jd 350 WINCH

Winches and parts for them are readily available. Have a few 350 winches for sale, it’s listed on Facebook. Anything I sell will be fully tested on a machine, ready to instal with control cable, handle, drive coupler and internal drive shaft if you need it 350 winches only fit 350 - the input shaft ...
by JWB Contracting
Sun May 22, 2022 6:54 pm
Forum: Late model JD crawler technical support
Topic: JD 450B - no vin tag
Replies: 14
Views: 6227

Re: JD 450B - no vin tag

The biggest factor is the dozer mounting frame having the brackets to accept the backhoe mounting hooks, which are required to mount the factory deere ripper. Not sure I would chance running a ripper without this mounting in place. We have built them or cut them off a wrecked loader attachment. On a...
by JWB Contracting
Sun May 01, 2022 7:08 pm
Forum: Late model JD crawler technical support
Topic: 450G steering valve
Replies: 3
Views: 2115

Re: 450G steering valve

Thanks for your post. Was about to swap steering valves from a wrecked 650G to a 550G with the same symptoms. We will try adjusting the non-offending side first.