RC48 grass cutting deck adjustment

[Hugo Habicht]

Hello,

a newbie question regarding the cutting desk setup. It is an RC48-G20K which I believe is the wrong one for my tractor. I think it should be an RC48-G20K-S for four wheel steering. Somebody before had been very creative and cut off the front link and welded it together shorter. The rear linkage cannot be put into mounting point A on the frame due to the PTO being too long then. That means I cannot adjust it by the book.

So... the manual says to adjust the front linkage so that X-Y is 11mm. My adjustment is at the end stop with the anti-scalp rollers still on the ground and I believe this is not right. So am I correct that the pull of the front linkage lifts the front of the deck off the ground so that the anti-scalp rollers are in the air and that only the rear wheels are on the ground? Since the rear linkage is mounted at the very end there must be a very high force to lift the remaining 50kg weight at that shallow angle.



Kind regards,
Hugo

 

[arml]

I would think just weld in the length you are short on the solid rod ....if you have no welder then take it to a weld shop.

 

[Hugo Habicht]

Modifying it is no problem.

But can you confirm that the front link is lifting the deck at the front so that the anti-scalp rollers are not touching the ground when deck is lowered down?

At the moment I think the link is slightly too long.

 

[arml]

I had a problem with the G1800 I bought recently....all adjustments were correct except the front draw bar....was doing some pretty good scalping I adjusted the draw bar to 15"top to center hole....perfect.

 

[Hugo Habicht]

Ok, but did it lift the anti-scalp rollers?
The deck is the wrong one on my mower, so the figures from the manual do not work.

 

[arml]

Yes it did....think about it, pulling the front of the deck will lift it up , then just measure the blade tip facing front and you will have your problem solved.

 

[Hugo Habicht]

Ok, great, thank you very much, that answers my question!
Will shorten the bars a bit and repair the pin holes.

 

[Shotgun Merwin]

If it's not even for your tractor, i don't know how useful the service manual is going to be. The way i usually level a mower deck is measure from the blades to level ground. It needs to slightly lower in front, like say 1/8"-1/4". Then side to side it should match whatever setting you have on the dial, within maybe 1/8" or so, don't try for perfection because it's just not obtainable most times. The wheels should never be in constant contact with the ground though. I forget how high up they should be, but i think those decks even have it printed right on there where to set them.

 

[Hugo Habicht]

Ok, so I definitely have to shorten the front link to get the front rollers off the ground.

That leads to another question: how do you measure the height of the blades? They are covered all around and not easily accessible when the deck is on the ground.

I can always measure the height as per manual on the frame, only the deck sits in a slightly different position lengthwise.

 

[Shotgun Merwin]

You could buy one of those fancy mower deck height gauges. I broke down and bought one, they're not that expensive, but like anything on amazon anymore it can take weeks to arrive.