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pedestrian Roller Benford MBR71 with Hatz engine, Limited Vibration

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phillipBarber
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Real name: Phillip Barber
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pedestrian Roller Benford MBR71 with Hatz engine, Limited Vibration

Post #1 by phillipBarber » Mon Feb 05, 2018 7:25 pm

Hi,

I'm looking for some help with my pedestrian roller if possible please. Its an MBR71, with electric start. Basically the Vibrate function only works intermiddently.

The Bolts holding the clutch bearing in place were very worn, so they've been replaced which has closed the gap between the clutch plate and the top pulley to a "normal " spacing. I hoped this had cracked the problem but its hasn't. The Vibrate still only works intermittently. It can vibrate for a minute, then will stop for 3, on for 1, off for 3 and so on. I've tried various things... At one point I adjusted the clutch plate so that when vibrate is engaged it physically slows the engine down.

It seems to me that there is a a seized/semi seized bearing on the shaft which is driven by the drive belt. Its stiff when I try to turn it with a pair of grips. i've never stripped one of these down, and although I have an exploded parts view, I cant see what might be the problem.

I was hoping someone had come across something similar in the past and might be able to point me in the right direction.

thankyou in advance

Phil


Jeremy Rowland
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Re: pedestrian Roller Benford MBR71 with Hatz engine, Limited Vibration

Post #2 by Jeremy Rowland » Tue Feb 06, 2018 8:23 am

Hi Phil and welcome :wave: I am sure there will be some good advice on here to help you with this issue although if you have a seized bearing you may have hit upon the problem yourself.

Jeremy


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Re: pedestrian Roller Benford MBR71 with Hatz engine, Limited Vibration

Post #3 by B-Man » Wed Mar 07, 2018 9:38 am

Hello
Although I dont have the answer to your question if you want I can send you an operators manual for your Roller which may be of some use. Also if anyone wants a parts manual just give me the VIN and I'll send you the correct book for your machine. The MBR is still being built today (I sit 30 yards from the production line) we were bought out last year and are now known as Mecalac (was Benford then Terex).
Regards
Andy


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