SMRT Buses purchases MAN A22 buses (Part 2)
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that means we wouldn't be seeing three door versions of our current buses. RHD A21 won't be feasible.
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Originally posted by Bus Stopping:
That is incorrect.
Regardless of the engine installed, Lion's City can accomodate a 3rd door on the right.
The D0836LOH is only availble in an engine + radiator tower configuration which is similar to the new Citaro C2 Euro 6. MAN markets this chassis type as A37, and this is now shared with the Lion's City Hybrid which uses the same engine with an added electic motor.
The A37 will look like this internally due to the engine tower:
On the other hand, the normal Lion's city with D2066LUH engines are also available with a 3rd door, marketed as A21. This config is less favorable (but widely used) across europe due to a very high platform opposite the 3rd door where the engine is located.
Oh I see. I always thought that only the D0836 engine is only available on the 3 door version because the official PDF had a picture of a 3 door and a 2 door Lion's City and it says vertical arrangement for the 3 door and horizontal for the 2 door version below the picture.
http://www.bus.man.eu/man/media/en/content_medien/doc/business_website_bus_master_1/Lions_City.pdf
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3-door LHD chassis are already in common use worldwide. Even King Long has examples of them running in Taipei. However, it seems that the translation of the whole driveline to the other side of the chassis is not a straight-forward process and thus we still don't really see any 3-door RHD chassis being offered.
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I forsee LTA will buy the NL280F and ND323F if the new operator win
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Originally posted by ^tamago^:
3-door LHD chassis are already in common use worldwide. Even King Long has examples of them running in Taipei. However, it seems that the translation of the whole driveline to the other side of the chassis is not a straight-forward process and thus we still don't really see any 3-door RHD chassis being offered.
unless LTA really places a order to custom make a RHD 3 door SD or DD
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Originally posted by ^tamago^:
3-door LHD chassis are already in common use worldwide. Even King Long has examples of them running in Taipei. However, it seems that the translation of the whole driveline to the other side of the chassis is not a straight-forward process and thus we still don't really see any 3-door RHD chassis being offered.
With some modification to extend the rear overhang, B9TL could be made to adapt a 3rd door after the rear axle. That's because the engine and drive shaft goes thru the right side in an L shape. However that means much lesser seats.
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Originally posted by TIB999B:
why no standardization?Perhaps they changing back to ZF?If you see the Volvo B9TL Wright thread you will find that they can change gearbox
1640 is Voith. -
Originally posted by SBS351M:
... by TIB999B: why no standardization?Perhaps they changing back to ZF?If you see the Volvo ... Wright thread you will find that they can change gearbox 1640 is Voith.
ok but SMB315C also said that SMB1587C is ZF but kept in view(i had replied to that as well but had edited to prevent wrong info.So AMB1587C is also Voith?
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Originally posted by Bus Stopping:
With some modification to extend the rear overhang, B9TL could be made to adapt a 3rd door after the rear axle. That's because the engine and drive shaft goes thru the right side in an L shape. However that means much lesser seats.
An extension of the rear overhang is possible, and the Scania N-series chassis achieve a 3-door configuration on the RHD, with the driveline running through the LHD in a manner similar to the Volvo B9TL.
http://www.scania.co.uk/Images/1311-scania-notingham-city-transport_tcm48-363236.jpg
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Originally posted by TIB999B:
ok but SMB315C also said that SMB1587C is ZF but kept in view(i had replied to that as well but had edited to prevent wrong info.So AMB1587C is also Voith?
Both 1587 and 1640 are Voiths.
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Registered on 01/04/15:
SMB3119H - SMB3122Y ( 4 A22 )
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So many NL323Fs parked in WPDEP with regos from SMB3123U to SMB3128G, SMB3130Z to SMB3141S and also probably SMB3143L...
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More A22s for more short routes like 301, a "cut-off" from 300.
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Originally posted by SBS351M:
Both 1587 and 1640 are Voiths.
I won't be surprised if he got confused... I took SMB1604L earlier and it had a Batch 1/2 retarder instead of the newer one on the Batch 3s. The Voith whistle was faint and the retarder could be heard quite loudly. It almost sounded like a Batch 1/2 ZF MAN, but with the faint Voith whitsle...
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Originally posted by 23ispolo:
I won't be surprised if he got confused... I took SMB1604L earlier and it had a Batch 1/2 retarder instead of the newer one on the Batch 3s. The Voith whistle was faint and the retarder could be heard quite loudly. It almost sounded like a Batch 1/2 ZF MAN, but with the faint Voith whitsle...
how do you tell if a bus has a batch 1 or 2 retarder?
hint - are you even hearing the retarder sound in the first place?
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some Batch 2 buses ranging from SMB1362J - SMB1385T and SMB3059Y - SMB3075A has/have got a noisy retarder.. You can try taking some of the Batch 2 buses on 904, 961, 962..
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Originally posted by 23ispolo:
I won't be surprised if he got confused... I took SMB1604L earlier and it had a Batch 1/2 retarder instead of the newer one on the Batch 3s. The Voith whistle was faint and the retarder could be heard quite loudly. It almost sounded like a Batch 1/2 ZF MAN, but with the faint Voith whitsle...
Most Batch 3 buses with Voith transmission are like what you have described though..
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Anyway to all, my bad for claiming that SMB1587C and SMB1640G are equipped with ZF transmission - as I have judged them by the rims of the rear wheel (or whatsoever you call it) and it was with a ZF logo..
So despite them having the "ZF logo", that doesn't mean that they are ZF.. -
Originally posted by SMB315C:
some Batch 2 buses ranging from SMB1362J - SMB1385T and SMB3059Y - SMB3075A has/have got a noisy retarder.. You can try taking some of the Batch 2 buses on 904, 961, 962..
Even SMB1354H - SMB1361L also got a noisy retarder too.
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Originally posted by SMB315C:
some Batch 2 buses ranging from SMB1362J - SMB1385T and SMB3059Y - SMB3075A has/have got a noisy retarder.. You can try taking some of the Batch 2 buses on 904, 961, 962..
if you are hearing alot of roaring, chances are that it is the radiator that is noisy rather than the retarder. notice that the ZF Citaros, ZF WEG2 B9TLs dont have the same noise as the A22s although they are using the same family of gearboxes!
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Originally posted by SMB315C:
Anyway to all, my bad for claiming that SMB1587C and SMB1640G are equipped with ZF transmission - as I have judged them by the rims of the rear wheel (or whatsoever you call it) and it was with a ZF logo..
So despite them having the "ZF logo", that doesn't mean that they are ZF..Batch 3 buses with Voith DIWA D864.5: SMb1568H, SMB1582R-TBC
what you saw with the 'ZF' logo is actually the axle hub of the rear axle; the rear axle is a MAN HONP-13100, essentially a badge-engineered ZF AV132. The AV132 rear axle family is shared across all LF buses in Singapore, including the E500 MMCs, WEG2 B9TLs, Citaros, MAN A24 and A95 as well as SBS7888K.
To digress a little, SBS7888K uses the same ZF AV132 despite being low-entry because the ADA1300 used on the KUBs would not allow for a lower rear 1/3 like the KUDs.
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Originally posted by 23ispolo:
I won't be surprised if he got confused... I took SMB1604L earlier and it had a Batch 1/2 retarder instead of the newer one on the Batch 3s. The Voith whistle was faint and the retarder could be heard quite loudly. It almost sounded like a Batch 1/2 ZF MAN, but with the faint Voith whitsle...
Very simply put, Voith and ZF use different retarders.
But as explained by SexyMichael, the sound you heard was the radiator. As to why there is a certain batch of buses with a different radiator noise, I can only guess that it has something to do with the pumps.
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Originally posted by SBS351M:
Very simply put, Voith and ZF use different retarders.
But as explained by SexyMichael, the sound you heard was the radiator. As to why there is a certain batch of buses with a different radiator noise, I can only guess that it has something to do with the pumps.
there are 2 possible reasons to account for the radiator noise:
1. wear-and-tear of moving component(s) of the radiator; could be a ball bearing, joint or even stator
2. radiator configuration - this presumes that the radiators are configured differently (although they may be of the same type) across the various A22s.
I would think its more likely to be (1), although I wont rule out that the radiator clutch mechanisms may be different for the A22s with different-sounding radiators.
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Originally posted by SexyMichael:
there are 2 possible reasons to account for the radiator noise:
1. wear-and-tear of moving component(s) of the radiator; could be a ball bearing, joint or even stator
2. radiator configuration - this presumes that the radiators are configured differently (although they may be of the same type) across the various A22s.
I would think its more likely to be (1), although I wont rule out that the radiator clutch mechanisms may be different for the A22s with different-sounding radiators.
Don't think its wear and tear, its not a specific bus, but a contiguous (almost) batch of buses, and they had the sound since new. Point 2 therefore seems more likely.
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