OutdoorKing Repair Forum Forums Repairs and Maintenance Questions on Walk Behind Lawn Mower Frames Reel Lawn Mowers, Atco & Villiers etc. Alroh 47D Levelling

hi all, I think my Alroh 47D is not cutting perfectly level. The unit has adjustment setting for the front roller and rear roller. I used a big flat piece of tile to adjust but still can't get it 100% level. Can someone give me advice please? Typically how level do I have to set at? 0.5mm right to left or 1mm is good enough. Thanks.

Hello Lovemygreen and ODK members,

I was disappointed to hear that M.E.Y., the makers of the Alroh, ceased trading in August this year.
Getting spare parts might now be a problem...

In any case, I will attempt to answer your question here: The Alroh manual says this:


Here's a procedure for alignment. The most important thing is that you don't
attempt alignment of the front roller before you set up parallelism between the bottom block
and rear roller. Once that is done, you align the front roller.

What this says is that the rear roller is fixed on the chaincase side (like a SB Model 45).
This ensures that the angle of attack of the bottom blade is set (not adjustable).
What you must do, then, is make a tool that looks and works like this:-
[it is a height adj. tool with an extra bolt]



Notice that the front roller does not touch the gauge for this first alignment.
You place the bolt head over the top surface of the bottom blade as in (G).
The second screw (I)is set up so that it just touches the underside of the blade/block
when the bar just touches the rear roller on the chain and belt case side (the fixed side).

You then move the gauge to the other side (the adjusting side), and move the rear roller up or
down, until it, too, just touches the gauge. For a domestic machine, touch should be fine
to get a accurate alignment. Once this is done, you have the bottom blade/block aligned
to the rear roller.

It's then just a simple case of bringing the front roller down to touch the end of the
gauge on the chain/belt case side and then align the front roller on the other side by the same method.

This method saves finding a good, flat surface plate around the home.

Hope this helps.
---------------------------------
JACK.

You're a champion, I'll try that & let you know. Thanks.

I was quite sad to hear that MEY is no longer. Another Aussie manufacturer can't compete and have to close. I spoke to Richard and the technicians there when I sent back my reel and knife for sharpening. They were very helpful. I thought they should do well seeing that they signed some sort of deal export mowers to middle east.

The unit is built like a tank. Only downside is that the smaller unit 18.5" does not have split rear roller (unlike SB units).

Hi Lovemygreen,

Yeah, I like the Alroh as a quality-built, solid-as-a-tank mower
I will miss it if this is an end of an era.

However, my personal view is that all powered roller mowers, 12" or wider, should have differential
action via two or more rollers. That is the single biggest 'defect' of the smallest Alroh.

I might add, however, that the Alroh has easy alignment adjustment on the front roller.
It was not unusual to find SB45s, straight out of the carton, with misalignment, most probably
due to transport. A drop from just a few inches could cause the front or rear roll to lose alignment.

In the Scott Bonnar 45 case, on the front roller, that meant two heavy adjustable spanners on
each side of the front roller bracket. You had to physically twist that bracket and check with
a gauge until the machine was aligned.

All very interesting.
------------------------------
JACK.

Yeah very interesting.
Actually questions for you again:
- how do I adjust the back roller? there is an acentric nut that holds the bearing casing. So do I loosen that & move the roller to position?
- Do I have to rest the mower completely on its back to reposition the back roller? Doing this may leak the oil inside the cylinder.
- If for some other reason I accidently rest the mower on its back and oil does get into cylinder, would it bend the piston rod if I try to start? or should I just open the spark plug, start a few times to push oil out?
Thanks again

Hi Lovemygreen,

I have no direct experience with the Alroh at all.
I gave the theory above that applies to all reel mowers.

Mate, alignment of the Alroh should be a one-off procedure.
I hope a member might be able to help...
Or an Alroh dealer ...

When you said, "my Alroh 47D is not cutting perfectly level," you did mean that the
machine was cutting lower on one side right?

The issue of whether the machine is not cutting cleanly at all is a separate issue.
I think we need some photos and more information to proceed here.

Cheers
----------------------------
JACK.

hi CyberJack,
Yes, the cut appears to be lower on one side from the look of the turf.
Will take some photos to upload. Thanks