steering a 450 Case dozer

mb58 · Nov 10, 2013

I'm looking at buying this Case 450D dozer. When you push one of the hi-lo levers in hi and the other in lo, shouldn't the dozer turn? What if you do this and nothing changes? The brake pedals don't work at all and when I tried the hi-lo levers to steer, it continued forward in a straight line! What could be wrong?
Also. What is the difference in the series numbers? You have 450B 450C 450D. Why?

apm · Nov 11, 2013

I can't be a lot of help, but yes, it should turn. That's one of the advantages to the Case torque convertor drive is power to both tracks at once to be able to make "power" turns.

The 450B uses the Case 188 and 207 engines, the same as the 580 backhoes. The 450C uses the Case/Cummins 4-390. I've got a 550E, but tried out some 450's before I bought mine.

Greg

Ted Maxwell · Nov 12, 2013

Hi:
A quick way to check:
FIRST, check the level of fluid in the drive unit under the seat.

Neutral, all 3 levers, engine running...
shift to FORWARD...
RIGHT TRACK... shift HI, rev engine, record.
shift LO, rev engine, record.
Repeat for LEFT TRACK,
Repeat for REVERSE.

The tracks should want to move when you rev the engine. If the track doesn't move it means the clutch plates need to be replaced.

The steering brakes have hydraulic brake cylinders that activate the brakes via a shaft.
Trouble shoot this by making sure that each component works, from the pedal, hydraulic cylinder, slave cylinder, linkage, and shaft rotation. Often it's just a matter of freeing up sticking parts.

JFoshee · Nov 16, 2013

I did not recall Case making a D series in the 450. Anyone else?

apm · Nov 19, 2013

I think the D series was a front end loader rather than a dozer. 1970's probably.

Greg

steering a 450 Case dozer

mb58

Member

apm

New User

Ted Maxwell

New User

JFoshee

Member

apm

New User

Similar threads