Recent content by onyxtour

I tried to relocate another drive motor, used, or for parts, but no luck. If I wasn't in such a bind I'd go ahead and have it sent out to be hardened...but the 4-6 weeks will kill me right now. I told the shop to go ahead and grind everything down and I'll pick up the motor monday. I figure I'll...

$180 plus shipping there and back for the hardening. $110. for the re-surfacing and spider. Total @ approx. $320.00. I'll put it back together myself. The shop guy said though that it was the raised surface on the piston block and the back plate that shut the motor down. No warranty was talked...

$810.50 plus shipping to have my cessans rebuilt. I send it out they send it back 4-6 weeks. 180.00 they re-harden the back plate, and I also pay shipping, out and back. Takes 4-6 weeks. $50.00 to re-surface pistons and piston block. spider $57.00 this way equals approximately $320.00. Does any...

Just returned from Heavy Equipment Repairs. They told me that the piston block, the end that connects to the back plate, needs the surface ground, because it's raised. That the back plate must be re-hardened, because it has worn through the hardness; this they have to send out to have done. That...

I don't know how that stupid angel thing got in there.

So far I've come up with (1) Canadian patent number, or year 1969-1971; (2) 71442 DAR; (3) 71442-3000; (4) 8C48 JJ; and the following are the U.S. patent numbers it may be under: (a) 3,396,536; (b) 3,508,817; (c) 3,621,761; (d) 3,486,334; (e) 3,611,879. I can find no other numbers or marking...

I did open it up and can find nothing wrong. Nothing is broken. Is there some web site I can go to get an exploded view, or discussion on the same?

Well today I switched out the right side drive motor with the left side...What a job, nothing like working on a bobcat, i suppose anyway. The final problem turns out to be..........the motor. Once switched the left side took off like a rocket, throwing dirt, while the right side was now dead in...

I found a good explanation of how the piston pumps operate at this web site http://www.answers.com/topic/axial-piston-pump; and on another learned that any scoring on the valve plate or block can be stoned up to .0002, so as not to remove any hardness. This is not to say i observed any scoring...

Why isn't there any pressure now when the control arm remains idle? (As opposed to me moving it by hand and it just grabbing and jumping up to 5000 psi). Also when I was driving the machine, after reinstalling the drive motor today, the machine would lock up on the left side, the side that is...

I just swapped the servos. The problem, however, remained on the left side. Today, I discovered that the left drive motor had no seal on the shaft that goes through the resevoir wall to connect up with the main drive sprocket. When I took it off all there was, was two large washers and a bunch...

When you say hydrostatic motor are you talking about my drive motor? I swapped out the relief valves (two for each piston pump), with no luck.

I see yours is valve operated. My motor is just like the pumps, all driven by 9 pistons each. I like seeing though that they use vaseline on the gaskets and o-rings. Question: If you go to the NH web site you can go to service and parts and search for parts by model number. There in figure 104...

I hack sawed through the one hose and pulled the emergency brake sprocket. The motor then pulled right out. The hose $32.50, the time and frustration it saved, priceless. You mentioned that when re-assembling the motor I had to line up the holes for the correct timing. Can you explain this a...

Tazza, I swapped out the pumps, left for right and right for left. Both pumps work fine. It just somthing deeper. PSI is around 2700. Any thoughts on how to pull out the drive motor for the left side.