Does your HST rattle?

ccsial · Jul 28, 2005

I have had an L3400 HST for a few months now. I have noticed that when I push the clutch in the engine idles very quietly. When I let the clutch out there is a rattle that starts. I've never owned an HST and have assumed this is normal. Does anyone else notice this?

esqn1000 · Jul 29, 2005

Hi Allen,

I've had my L3400 for only 10 hours, and I've noticed the same thing since the first day. It's the first tractor I've owned, so I've got no reference if it's normal or not. I'd be interested to hear what others say.

Killer_B · Jul 29, 2005

My B7610 does the same thing. It rattles when it sits, and whines when it moves. It's called character.

KB

_RaT_ · Jul 29, 2005

I do not have that on my Kubota L3830 HST

ccsial · Jul 29, 2005

I am familiar with hydraulic whine, that does not bother me. I was wondering what the rattle is. Maybe the pump or an over running clutch that chatters when idling. If it is normal for the L3400 I guess I won't worry about it. I was just curious as to how common this rattle is.

Boomerang1 · Jul 29, 2005

Mabe too much free play in clutch pedal resulting in clutch fork not touching throw out and causing bearing or fork to rattle.

Jackrabbit_Slim · Jul 30, 2005

I've been concerned about this with my B2710 for quite a while. Same thing. Clutch in... purrs right along. Clutch out... all kinds of racket. And I get a weird "knocking" in the rear end after I've been running under load (ie. the box scraper). I'm pretty sure it's nothing in the rear end, but is actually sound travelling down from closer to the front.

As Boomer suggested, I looked at the free play on the clutch very carefully and that wasn't it. I'm thinking it's probably the ball couplers on the drive shaft.

Slim

ccsial · Jul 30, 2005

Hi Slim,

I wonder if the knocking is related to thinner oil from heat.

When I first start mine it does not make any rattle. Is starts after it warms up and the oil gets thinner. I have not worked it very hard yet.

I guess it is nothing to worry about.

Dargo · Jul 30, 2005

You're not talking about the little hook that is to hold the clutch pedal down rattling are you? When you shove the clutch down, you would be holding that little hook still, but when the clutch is up, mine rattled until I put a rubber gasket over it.