torque multiplier on tractor.

[openspaceman]

Not sure if mine would be classed as an early zetor being 1995,

 

No they were their own thing by then, I was referring back to the early 70s.

[GardenKit]

Its a torque multiplier and is clutchless, just flick the lever whilst under power to change down or up.

I used to sell them.

[Craig.]

One thing to check out, perhaps gardenkit can help out again, is where it can be used under load for engine braking, I seem to remember on case tractor 4240 the manual said some thing along those lines, as it would cause premature wear.

[Ryan]

International harvester tractors have it too, My 885xl has anyway. you dont need to clutch while changing but you should take the load off by dropping the revs off for a moment. Takes the jump out of the change. I do remember reading somewhere that you shouldn't drive for long periods in the low range of the torque amplifier. Not sure how accurate that is though

[GardenKit]

Being gentle will of course make the clutch pack last longer, but they are quite resiliant

[Peasgood]

You don't need the clutch but as has been said, there is no engine braking when in tortoise.

ie. going down a hill it is not much different than free wheeling but in a very not safe way.

[GardenKit]

there is no engine braking when in tortoise.

ie. going down a hill it is not much different than free wheeling but in a very not safe way.

 

True of the old Massey Multi Power, but not of the Zetor.

 

The Zetor 9540 employs a 3 stage, clutchless torque multiplier with full engine braking. Coupled with the 3f/1rev gearbox and high/low range, the multiplier allows 18f/6rev gears.

[Matthew Storrs]

True of the old Massey Multi Power, but not of the Zetor.

 

The Zetor 9540 employs a 3 stage, clutchless torque multiplier with full engine braking. Coupled with the 3f/1rev gearbox and high/low range, the multiplier allows 18f/6rev gears.

 

Yep tried this out today- theres engine braking OK. What do you mean by 3 stage though, as far as I can tell its either hare or tortoise- no middle ground?

Seeing as you know your zetors- the torque multiplier seems to whine sometimes but not always. Any ideas what this is? Cheers

[GardenKit]

I have been out of the ag game for a dozen years, but remember the 9540 as having a 3 stage multiplier, but maybe my memory is playing tricks. Do you have a handbook?

i would not worry too much about a whine in a Zetor at speed.

[Matthew Storrs]

Well, mine doesn't seem to, only 2 stage- unless 9540 models vary. Don't have a handbook or manual but I must get one- they always seem to be translated from polish (?) so I never find the manuals particularly easy to follow.

Anyhow, very pleased with my 9540, seems a strong tractor and a MASSIVE upgrade from my old zetor 7045 which was a disaster on the roads even if it was good in the fields.