The Forestry Forum is sponsored in part by:




TimberKing Sawmills




Toll Free 1-800-582-0470

LogRite Tools



Forest Products Industry Insurance


Norwood Industries Inc.


Sawmill & Woodlot Magazine



Your source for Portable Sawmills, Edgers, Resaws, Sharpeners, Setters, Bandsaw Blades and Sawmill Parts

EZ Boardwalk Sawmills. More Saw For Less Money!

STIHLDealers.com sponsored by Northeast STIHL


Woodland Sawmills

Peterson Swingmills

 KASCO SharpTech WoodMaxx Blades


Turbosawmill

Sawmill Exchange

BRUTE FORCE Authorized Dealer

Woodshax Outdoor Vending Solutions

FARMA

Forestry Forum Tool Box

Author Topic: JD 450c dozer steering issue  (Read 1670 times)

0 Members and 1 Guest are viewing this topic.

Offline BurkettvilleBob

  • Full Member x2
  • ***
  • Posts: 122
  • I'm new!
JD 450c dozer steering issue
« on: April 18, 2017, 09:27:26 pm »
I was dozing away this afternoon on a pretty steep hill, backing up the hill, pushing stumps down the hill. After a few passes the left steering lever would get soft and stop working correctly. I'd go back down to the flat and separate  stumps and push aside and the steering would go back to normal. Is something starving for fluid when on a hill?

Offline mike_belben

  • Senior Member
  • ****
  • Posts: 677
  • Location: Middle TN
  • Pulp Friction
Re: JD 450c dozer steering issue
« Reply #1 on: April 18, 2017, 10:41:33 pm »
Start with your oil levels and sump screen.

Offline snowstorm

  • Senior Member x2
  • *****
  • Posts: 3477
  • Location: maine
  • Gender: Male
Re: JD 450c dozer steering issue
« Reply #2 on: April 19, 2017, 06:27:12 am »
what do you call soft??? 450c clutches run in oil. dipstick is under the seat. dose it slip?backing up hill? one side or bolth? one side break to tight .discs wore out .hose leaking. the hose goes to the clutch pack. how fast dose it change direction at 1700rpm? it should be quick. not quite to the point of throwing you on to the hood but almost

Offline BurkettvilleBob

  • Full Member x2
  • ***
  • Posts: 122
  • I'm new!
Re: JD 450c dozer steering issue
« Reply #3 on: April 19, 2017, 12:06:07 pm »
Soft like there is no resistance when you pull back. The trans isn't slipping, I know what that feels like. You have to really pull back on the left lever to steer. Only when backing up a hill though.

Offline snowstorm

  • Senior Member x2
  • *****
  • Posts: 3477
  • Location: maine
  • Gender: Male
Re: JD 450c dozer steering issue
« Reply #4 on: April 19, 2017, 02:30:40 pm »
The levers should pull easy until it engages the break. It's sorta like power steering but manual brakes . It will seem different in reverse. Parking brake is on is it? I have seen them left on and it acts strange. There is an adjuster for the brakes

Offline BurkettvilleBob

  • Full Member x2
  • ***
  • Posts: 122
  • I'm new!
Re: JD 450c dozer steering issue
« Reply #5 on: April 19, 2017, 05:42:25 pm »
I know, it pulls easy all the back, like it's not engaging the brake at all, but only in these conditions. Right lever works fine.

Offline mike_belben

  • Senior Member
  • ****
  • Posts: 677
  • Location: Middle TN
  • Pulp Friction
Re: JD 450c dozer steering issue
« Reply #6 on: April 19, 2017, 10:04:18 pm »
Is there some debris rolling around in the linkages?  Its pretty common for 50lbs of oil soaked rubbish to be under the seat.

Offline BurkettvilleBob

  • Full Member x2
  • ***
  • Posts: 122
  • I'm new!
Re: JD 450c dozer steering issue
« Reply #7 on: April 19, 2017, 10:07:33 pm »
I cleaned all that out, plus that would be more likely to make something harder to move, not easier, keep the ideas coming though.

Offline g_man

  • Senior Member
  • ****
  • Posts: 789
  • Age: 71
  • Location: NEK VT
  • Gender: Male
Re: JD 450c dozer steering issue
« Reply #8 on: April 20, 2017, 06:53:22 am »
Did you look at the steering brake linkages. Sounds like something gets misaligned and doesn't hit the brake lever for some odd reason when you are at a sever angle ??????????

Offline BurkettvilleBob

  • Full Member x2
  • ***
  • Posts: 122
  • I'm new!
Re: JD 450c dozer steering issue
« Reply #9 on: April 20, 2017, 08:12:25 am »
I will  give it a look.

Offline BurkettvilleBob

  • Full Member x2
  • ***
  • Posts: 122
  • I'm new!
Re: JD 450c dozer steering issue
« Reply #10 on: April 21, 2017, 10:15:58 pm »
Looks like the left brake needs adjusting, it pulls back farther than the right.  I've had trouble getting both sides to "feel" the same in the past.

Offline coxy

  • Senior Member x2
  • *****
  • Posts: 5477
  • Age: 47
  • Location: eastern n.y
  • Gender: Male
Re: JD 450c dozer steering issue
« Reply #11 on: April 22, 2017, 06:22:40 am »
my 350c is like that after putting in new brake bands one lever  always pulls back more than the other if I try to make them the same one brake is always to tight  if I remember right the book says 1-11/2inches  off the lever peg on the floor the brake should start to engage

Offline BurkettvilleBob

  • Full Member x2
  • ***
  • Posts: 122
  • I'm new!
Re: JD 450c dozer steering issue
« Reply #12 on: May 19, 2017, 08:37:47 pm »
Adjusted the brakes and all was good until I spent more time on the hill. Then the steering started acting up again and the brake pedal went soft as well. After a few minutes on the flat the brake pedal was back to normal. What is going on here?

Offline coxy

  • Senior Member x2
  • *****
  • Posts: 5477
  • Age: 47
  • Location: eastern n.y
  • Gender: Male
Re: JD 450c dozer steering issue
« Reply #13 on: May 20, 2017, 07:00:40 am »
try adjusting that brake a little tighter you will know if its to tight as soon as you move run it at low low rpm so you can here/feel it drag

Offline bushmechanic

  • Senior Member
  • ****
  • Posts: 756
  • Age: 47
  • Location: Milton,Newfoundland,Canada
  • Gender: Male
  • Someone else has it worse than you.
Re: JD 450c dozer steering issue
« Reply #14 on: May 20, 2017, 10:17:58 am »
Sure sounds like an oil level issue to me. Did you check the oil level in the transmission? The levers are hydraulic assist so you may be low on oil.

Offline snowstorm

  • Senior Member x2
  • *****
  • Posts: 3477
  • Location: maine
  • Gender: Male
Re: JD 450c dozer steering issue
« Reply #15 on: May 20, 2017, 12:09:58 pm »
On a 450 c.the steering is just moving a valve. Pull the lever far enough it pulls the brake band. Power steering manual brakes. The 450 b. Had power steering and brakes.i would b.s. k off on the brake
It will act different backing up hill

Offline Ford_man

  • Senior Member
  • ****
  • Posts: 337
  • Age: 76
  • Location: North East Indiana
  • Gender: Male
Re: JD 450c dozer steering issue
« Reply #16 on: May 21, 2017, 11:14:34 am »
My 450BC done the same thing. I finally pulled the filter out of the trans and kleened it  It works good now

Offline BurkettvilleBob

  • Full Member x2
  • ***
  • Posts: 122
  • I'm new!
Re: JD 450c dozer steering issue
« Reply #17 on: May 21, 2017, 04:15:04 pm »
I don't know. The oil level is good, still squeaky clean, maybe 40 hours on the fluid and all filters. The brake adjuster on the left side seems to be maxed out and the freeplay isn't to spec, brake is supposed to engage at 5 inches of travel, it's at 6 right now. I called the local  guru from the jd garage, he said he'd come check it out.  I'll report back.

Offline coxy

  • Senior Member x2
  • *****
  • Posts: 5477
  • Age: 47
  • Location: eastern n.y
  • Gender: Male
Re: JD 450c dozer steering issue
« Reply #18 on: May 21, 2017, 04:28:26 pm »
sounds like a wore out brake band  I know on a 350c you can put the brake cam on backwards ( iv done it many times being in a hurry) and the band will be all the way adjusted tight and it don't work worth of crap  ;D  don't know if a 450c is the same has any one put brake bands in it

Offline snowstorm

  • Senior Member x2
  • *****
  • Posts: 3477
  • Location: maine
  • Gender: Male
Re: JD 450c dozer steering issue
« Reply #19 on: May 21, 2017, 07:03:35 pm »
Was that bill you talked to? If so he will know of anyone would