10 more B10BLE-CNG commissioned for SBS Transit
-
Hi there MS! Kudos to you and your team for ensuring that the CNG buses are well-maintained before being put out for serviceOriginally posted by MS:Anyway when I told my colleague that the public is very concerned with our CNG and positively reacting, he was smiling very happily. My guys are touched to know that the public actually appreciates our hard work. Every organisation has their problems. Even SBS is not spared this fact. So it is not easy to maintain the fleet. The success of the buses daily that goes on the road everyday, is the credit of the entire workshop. When the bus returns as breakdowns, our heart sinks with the vehicle. My guys hold pride in the way they work and I'm really proud to say that I am a member of this organisation.
How long does it take on average to rectify any faults for the CNG Buses? One of my friends experienced first-hand the air-con breakdown on 2996P yesterday morning, while I experienced a pretty tricky handbrake fault on 2995S this morning. It pains me to see the new buses breakdown so frequently, to the extent that the 3 buses on 143 today are missing in action
-
Thats a very subjective matter. Must depend on the seriousness of the faults, has it affected other things (no matter what I dunwan to dida-apa solve the fault then let go without realising that there're other faults undetected.) the spares availability, the manpower status, whether there're more urgent buses that awaits attention, many factors contributes.Originally posted by gynobcard:Hi there MS! Kudos to you and your team for ensuring that the CNG buses are well-maintained before being put out for service
How long does it take on average to rectify any faults for the CNG Buses? One of my friends experienced first-hand the air-con breakdown on 2996P yesterday morning, while I experienced a pretty tricky handbrake fault on 2995S this morning. It pains me to see the new buses breakdown so frequently, to the extent that the 3 buses on 143 today are missing in action
Sad to say as technical personnels in the industries, we all know that when vehicles all kept in storage for long periods, workshop will suffer once the vehicle comes on the roads. The rubbers will start to crack and things will start to leak or break. This was also one of those harsh factors that hit the SAF preservation vehicles badly. There is no way to eliminate this problem other than to apply preservatives which can only slow down the decay not eliminate. Before the buses come out after so long, we all have already predicted that the first 6 months will be hell for us. On top of that, we also have many other buses to take care of. So my workshop guys are really putting in extra efforts to repair the buses. But the faults always have their way to catch us unaware. So this becomes a cat and mouse game. While we chase after the faults with our every possible effort, we nail the fault with our claws and the next mouse will pop out of the next hole. Until we finally manage to solve all problems then the faults will start to slow down.
However, the best part despite the hardships we're facing, you all have been showering your concerns positively on our efforts which acts as an extra boost to our morales. My guys though they don't know how to express, were smiling and happy to know that their efforts are not in vain.
Now everytime you see a CNG bus running on the road, bears an invisible word painted with our hearts that reads: "Thank you all!" -
maybe SBST can paste small CNG decals on these 10 buses to create awareness about the fact that they run on CNG and are cleaner. many people cannot differentiate, or does not know what the tank on the roof signifies.
on a side note, buses (and heavy vehicles in general) have idling at 600-900/min, right? 1800/min is probably where gearshift occurs. -
Hi MS!
Sure enlightening to read your first-hand insights on the CNG buses. Not anything technical, but I've a question nevertheless.
I stumbled upon an NEA Press Release, and in that release, SBST signed an agreement with ENV and SembCorp Gas to buy and operate up to 30 CNG buses in the project. Will SBST continue to purchase other makes of CNG buses, under this project, after the pioneer batch of Volvo CNGs? -
Depending on the engine, idle speed can be anywhere from about 500 r/min to over 1000 r/min. Idle speeds can also fluctuate due to the constantly changing power demands from air-conditioning, compressors, etc. CNG and LPG engines (particularly ones that rely on venturi mixers for fuel metering) are particularly sensitive to abrupt changes in power demand and therefore have a tendancy to vary their idle speed considerably (i.e. revving up and down when stopped) - differences can be greater than 100 r/min and can be quite audibly noticeable.Originally posted by SBS9828X:1800/min? isn that the revs wen the pedal isnt stepped on?
Today, bus engines, whether diesel or CNG-powered, run at their best between 1000 r/min and 1700 r/min ("Green Zone" - best fuel economy, peak torque, and maximum turbo boost are achieved somewhere during the above engine speeds). Rated speed (engine speed where peak power is achieved) is usually around 2000 r/min. Of course, all this above depends greatly on the engine manufacturer, engine displacement, etc.....
Regards,
Dave -
Hi there MS! I also hope that the uncommisioned CNG buses will be put on service soon! Hope to hear from you!
P.S.: Sorry to miss your posts on page 4 since I was not around at that time. -
what uncommissioned? they are commissioned, just off-road due to repairs.Originally posted by Apex-LW'21:Hi there MS! I also hope that the uncommisioned CNG buses will be put on service soon! Hope to hear from you!
P.S.: Sorry to miss your posts on page 4 since I was not around at that time. -
Oh, I see. But, actually I read through the NEWCOMERS' GUIDE thread. It shows that SBS2990E-SBS2999G is uncommisioned.Originally posted by ^tamago^:what uncommissioned? they are commissioned, just off-road due to repairs. -
NOW, they are commissioned.Originally posted by Apex-LW'21:Oh, I see. But, actually I read through the NEWCOMERS' GUIDE thread. It shows that SBS2990E-SBS2999G is uncommisioned. -
dumbass. u're finding fault, right? or you can't see my first post?Originally posted by Apex-LW'21:Oh, I see. But, actually I read through the NEWCOMERS' GUIDE thread. It shows that SBS2990E-SBS2999G is uncommisioned. -
Saw the first post just now. Anyway, thanks for updating the Newcomers' Guide.Originally posted by ^tamago^:dumbass. u're finding fault, right? or you can't see my first post? -
-claps-Originally posted by Apex-LW'21:Saw the first post just now. -
i saw 1 CNG on Sv 93 at Queensway
-
Ha! Good, someone also saw this, so I did not see wrongly. The Bus is SBS 2996P. Saw it this morning at Junction of Airport Road with Hougang Ave 3 / Eunos Link, in the direction towards Eunos.Originally posted by Edgar_Davids:i saw 1 CNG on Sv 93 at Queensway -
seems that ayer rajah depot holding some CNG also
-
2996P is doing a 143/93 crossover in the morning peak. it is the permanent bus for that 93 slot. therafter, it returns to 143. does O405's from SLBP on 93 ring a bell?Originally posted by Edgar_Davids:seems that ayer rajah depot holding some CNG also
ARBP does not hold any, neither does BBDEP. -
The CNGs which are spotted on Svc 93 are from SLBP.
They are 93/143 cross-overs. -
CNG is the signature bus for SLWS because we're strategically located near Jurong Island where we pump our gas for the bus operations. Up till now, SL is the only place where CNG buses can be found. We only have 5 bus parks and workshops. Namely: FM1 - Houngang, Bedok North, Ang Mo Kio; FM2 - Soon Lee, Bukit Batok.
-
oic, yes i saw 0405 DM on Sv 93 before and was puzzledOriginally posted by ^tamago^:2996P is doing a 143/93 crossover in the morning peak. it is the permanent bus for that 93 slot. therafter, it returns to 143. does O405's from SLBP on 93 ring a bell?
ARBP does not hold any, neither does BBDEP. -
who's interested in some technical pics and info of the CNG bus? email me? I dunno how to attach the pics and stuffs here.
[email protected] -
I remember the same problems happening with Tridents and B10TLs when they were first released. The problem was especially bad with the Tridents. I wonder why SBST wants to hibernate the buses and create problems in the long term. If they were surplus to requirements then why buy so early on?
-
Actually I was told that there was some political problems in to top level management from some old time employees. Thats why the CNG bus existed. But my ED (Mr Ong Boon Leong) decided to put those CNG on the road instead of leaving them to waste. Though this phase where many things break down has to be gone through, SLWS is prepared to deal with it. By facing challenges, dealing with the impossible to make it possible makes our workshop a cut above the rest. And I'm happy that my guys took it positively. And it was an extremely wise decision for my ED to put the 10 CNG buses on the road and we all support him. Inclusive of the public as you all have shown.Originally posted by SBS9818A:I remember the same problems happening with Tridents and B10TLs when they were first released. The problem was especially bad with the Tridents. I wonder why SBST wants to hibernate the buses and create problems in the long term. If they were surplus to requirements then why buy so early on?
If you all realised, the best way to recognise the bus model is through the number plates. All th 29xx series are CNG, Some 3 digits series, 37xx, 38xx, 39xx are MB0405, 72xx are Volvo Olympians 2xle, 90xx, 91xx are Leyland Olympians 3xle, 26xx & 27xx, 82xx are Volvo MK4, 18xx, 17xx are Volvo MK2 -
Thought is 8019 to 8028?Originally posted by MS:Actually I was told that there was some political problems in to top level management from some old time employees. Thats why the CNG bus existed. But my ED (Mr Ong Boon Leong) decided to put those CNG on the road instead of leaving them to waste. Though this phase where many things break down has to be gone through, SLWS is prepared to deal with it. By facing challenges, dealing with the impossible to make it possible makes our workshop a cut above the rest. And I'm happy that my guys took it positively. And it was an extremely wise decision for my ED to put the 10 CNG buses on the road and we all support him. Inclusive of the public as you all have shown.
If you all realised, the best way to recognise the bus model is through the number plates. All th 29xx series are CNG, Some 3 digits series, 37xx, 38xx, 39xx are MB0405, 72xx are Volvo Olympians 2xle, 90xx, 91xx are Leyland Olympians 3xle, 26xx & 27xx, 82xx are Volvo MK4, 18xx, 17xx are Volvo MK2 -
someone told me that 2991C has problem with its reverse light and sounds when the BC steps on the brakes
-
Seems like it has been becoming a trend for sbst to hibernate buses before launching them for revenue service. we have...Originally posted by SBS9818A:I remember the same problems happening with Tridents and B10TLs when they were first released. The problem was especially bad with the Tridents. I wonder why SBST wants to hibernate the buses and create problems in the long term. If they were surplus to requirements then why buy so early on?
Volvo Mk4 DM3500 at Braddell
Dennis Trident at Hougang
Volvo B10TL at Soon Lee
Volvo B10BLE CNG at Soon Lee & Bt Batok
SBS 9889 U at Hougang
and now...
B9TL at Soon Lee (assuming its the same procedure as the B10TLs)