The side brake shoe does not return well when released on XH200W OPEL B-Vectra and makes dragging noise for a while, of course I try to set them in place by pulling brake lever several times in running phase, it happens without failure, sometimes makes big noise for returning the shoe in correct position in inner equipped drum shoe design construction. There must be some rusting to make some holding point dull causing inadequate backlash tolerance.
I had been paying attention to this point and prepared replacement parts, rear brake disk rotors and brake shoes for disk, not for side brake's.
But the fact prevented me from proceed to the next step, finding some special electric circuitry just inside of hub center position precise wiring probably for some safety system? I was afraid of destroying this precise device if I proceed to disassemble rear disk brake system, thinking over the miserable result in case of failure by myself, this B-Vectra might be a mare void after Chestnut Laning by amateur?
This inconvenience has been left without trying to repair for long time, because the phenomena does not halm to any functions for ordinal use public automobile, but with a bad aftertaste.
Remaking and adjusting for our new laboratory would start soon from 8 o'clock lasting 20 in the evening, I would be fully occupied all day long today by working with several professional workers. Thinking, rolling and tossing with them are the best joys for me, because I'm also one of a professional builder and constructor though divisions might be different each other.
2012年4月5日木曜日
2012年4月4日水曜日
Consideration on Vacuum System
Trial fitting of the family use middle sized vacuum cleaner onto our laboratory clinical vacuum system works very well and the suction power exceeds the original industrial use designed one, how it comes? As it is designed for using in ordinal family room and is a relatively expensive model, it makes noise very little like nothing compared with noisy one used before.
The power of vacuum pump is not always in the proportional relations, some times being reversed? Now less powered family use vacuum cleaner performs more suction power at the vacuum tip portion, it's incredibly the truth!
So, I regard the problem on our vacuum system, irritation noise and unacceptable vibration have been solved by this countermeasure applied this morning.
Residual task is wiring for application of signal into AC circuitry when activated with pulling the vacuum tip by the assistance.
4 signal wiring exist at the vacuum pump system from the working chairs promptly, am I wondering them if only ON-OFF signal by shortening or the circuitry would have some voltage to activate mechanical relay system?
Checked and well wired relatively soon it would be.
Fixing in a noise isolating small box of vacuum cleaner and continuous using keeping switch ON under severe loading condition with conduit resistance as to putting ON the warning lamp of dust-full indicator caused considerable heat in the machinery body, now the switching process is performed manually, because automatic activation is not connected.
Once the wiring might be established firmly, the switching would be so adequately when the vacuum tip was pulled out from the sitting place, probably future intermittent use in combination with the automatic switch, the vacuum cleaner with noise isolating measuring might be permissible, actual testing would decide on point.
Deeper considerations and actual trials fitting would often find any escaping way.
The power of vacuum pump is not always in the proportional relations, some times being reversed? Now less powered family use vacuum cleaner performs more suction power at the vacuum tip portion, it's incredibly the truth!
So, I regard the problem on our vacuum system, irritation noise and unacceptable vibration have been solved by this countermeasure applied this morning.
Residual task is wiring for application of signal into AC circuitry when activated with pulling the vacuum tip by the assistance.
4 signal wiring exist at the vacuum pump system from the working chairs promptly, am I wondering them if only ON-OFF signal by shortening or the circuitry would have some voltage to activate mechanical relay system?
Checked and well wired relatively soon it would be.
Fixing in a noise isolating small box of vacuum cleaner and continuous using keeping switch ON under severe loading condition with conduit resistance as to putting ON the warning lamp of dust-full indicator caused considerable heat in the machinery body, now the switching process is performed manually, because automatic activation is not connected.
Once the wiring might be established firmly, the switching would be so adequately when the vacuum tip was pulled out from the sitting place, probably future intermittent use in combination with the automatic switch, the vacuum cleaner with noise isolating measuring might be permissible, actual testing would decide on point.
Deeper considerations and actual trials fitting would often find any escaping way.
Unexpected affairs
Typical pressure pattern in climate brought an extraordinary spring storm causing disastrous result all over Japan, my bicycle had some distortion on the chain cover when tipped over by strong sudden wind blow, but it's repaired soon no problem. Persistently sitting continent still winter cold low pressure and the high pressure from Pacific Ocean as spring blowing in were the criminals of the affair yesterday.
All Japan High school Baseball Game Final has postponed till today because of the upper reason, how it would be today. Aomori or Osaka?
Reworking for details in our new laboratory would be performed tomorrow from early in the morning till late at night, of course my holiday would be fully occupied by the work.
As for vacuum system that is indispensable for our clinical operations is relatively formidable task requiring special experiences and skilful know-how to be completed, but I determined to carry it out by my desperate efforts at any rate from now, because this is one of a hurdle to be overcome by myself.
Setting silent family use vacuum cleaner as our laboratory vacuum pump system instead of our long term used conventional terribly noisy and vibration producing high powered professional use one. Also I come to know that the conduit resistance existing in our new laboratory is impossible to be broken by the power of industrially designed vacuum pump system, however strongly the suction might be done, the resistance by the long way duct would shut out the power of the activating motor and pump system.
So this kind of problem would not be solved until the long way conduit resistance should be eliminated, keeping the vacuum pomp system at the place as near as possible, the duct length must be shortest! So, putting the small system in the working chair tower beside the oil cylinder is the final selection of the solution. Even in the Web site, this kind of problem is not reported by the user, just appears some constructor's manual and designing sheets.
All Japan High school Baseball Game Final has postponed till today because of the upper reason, how it would be today. Aomori or Osaka?
Reworking for details in our new laboratory would be performed tomorrow from early in the morning till late at night, of course my holiday would be fully occupied by the work.
As for vacuum system that is indispensable for our clinical operations is relatively formidable task requiring special experiences and skilful know-how to be completed, but I determined to carry it out by my desperate efforts at any rate from now, because this is one of a hurdle to be overcome by myself.
Setting silent family use vacuum cleaner as our laboratory vacuum pump system instead of our long term used conventional terribly noisy and vibration producing high powered professional use one. Also I come to know that the conduit resistance existing in our new laboratory is impossible to be broken by the power of industrially designed vacuum pump system, however strongly the suction might be done, the resistance by the long way duct would shut out the power of the activating motor and pump system.
So this kind of problem would not be solved until the long way conduit resistance should be eliminated, keeping the vacuum pomp system at the place as near as possible, the duct length must be shortest! So, putting the small system in the working chair tower beside the oil cylinder is the final selection of the solution. Even in the Web site, this kind of problem is not reported by the user, just appears some constructor's manual and designing sheets.
2012年4月3日火曜日
Countermeasure
The experimental trial to connect family use vacuum cleaner in stead of industrial designed far high power vacuum system was impressive so much last night. The comparison of suction power exceeded conventional industrial one! Then what had been that, noisy pollution device for as long as 24 years.
Finally determined I to replace vacuum system themselves into more silent vacuum cleaner, so the planning for relocation of the system would be cancelled today.
Because of the assumption that the vacuum system is indispensable device for our clinical procedure, we must ignore a little inconvenience like polluting noise and vibration when intermittently activated.
Several countermeasure procedures this time obliged by the neighbor have changed my perception on selfish consideration about that, noisy device should not be introduced in our operation room even if it is necessary at any rate.
Several trials of countermeasure for polluting noise and vibration would be continued also today.
I have come to the conclusion that the most important problem to be solved here in vacuum system in our new laboratory is the conduit resistance of vacuum duct from the pump to the distributed working chairs promptly. So the long way of air duct design consumes almost of energy power however powerful vacuum pump system might be introduced with terrible noise and vibration of pollutions. I checked it by trying to blow in my mouth at the vacuum tip end, in spite of the activation in the suction, considerable resistance was felt as to make me realize the upper conclusion.
So the best way to solve this problem is to set the vacuum pump and activating motor just beside of the trapping bottle in the working chair to eliminate the long way conduit resistance, so smaller system must be effective, like battery driven smallest desk use handy cleaner? The application of small handy cleaners in the working chair base pillar promptly if the motor and suction fan noise could be ignored, how would it be?
Our customers cancel the appointment one after another because of severe climate condition, strong wind is blowing outside and a stopped bicycle turned down by it, leave it as it is, keeping like this no further accident would not occur.
We call this kind of climate change these season beginning of spring as "The first Spring Storm".
Finally determined I to replace vacuum system themselves into more silent vacuum cleaner, so the planning for relocation of the system would be cancelled today.
Because of the assumption that the vacuum system is indispensable device for our clinical procedure, we must ignore a little inconvenience like polluting noise and vibration when intermittently activated.
Several countermeasure procedures this time obliged by the neighbor have changed my perception on selfish consideration about that, noisy device should not be introduced in our operation room even if it is necessary at any rate.
Several trials of countermeasure for polluting noise and vibration would be continued also today.
I have come to the conclusion that the most important problem to be solved here in vacuum system in our new laboratory is the conduit resistance of vacuum duct from the pump to the distributed working chairs promptly. So the long way of air duct design consumes almost of energy power however powerful vacuum pump system might be introduced with terrible noise and vibration of pollutions. I checked it by trying to blow in my mouth at the vacuum tip end, in spite of the activation in the suction, considerable resistance was felt as to make me realize the upper conclusion.
So the best way to solve this problem is to set the vacuum pump and activating motor just beside of the trapping bottle in the working chair to eliminate the long way conduit resistance, so smaller system must be effective, like battery driven smallest desk use handy cleaner? The application of small handy cleaners in the working chair base pillar promptly if the motor and suction fan noise could be ignored, how would it be?
Our customers cancel the appointment one after another because of severe climate condition, strong wind is blowing outside and a stopped bicycle turned down by it, leave it as it is, keeping like this no further accident would not occur.
We call this kind of climate change these season beginning of spring as "The first Spring Storm".
2012年4月2日月曜日
Finishing details on BC7
Many years were required for me to realize the phenomena that the habit tendency inverts into opposite direction being influenced by the effect of self-steer action that appears with the accelerating speed, and the inflection point would be approximately 60 to 80 km/h.
This is the key to know the discrepancy precisely of the wheel alignment and constructive geometry of the production vehicle. Also this is the truth that the final adjustment to overlap the centricity of the vehicle with that of driver's sixth sense(another way to explain about this point is not found) must be attained until actual driving test and precise adjustment would be performed with keen concentration.
Frontal total toe value reduced into 1,5mm (Tire outer diameter scaling method) brought good result on steering response and rotating noise while straight running phase.
As the tire balancing weight comes up to 20 gr, the positioning relation between the wheel changed into 180 degree rotated position on two frontal wheels. Necessary adjusting weights had been far reduced as I imagined.
Though I knew that the balancing weights were made from small rectangular iron pieces with both surfaces adhesion tape, all of them were removed and rebalanced with conventional lead weight with clumping nail onto wheel outer surface.
This is the key to know the discrepancy precisely of the wheel alignment and constructive geometry of the production vehicle. Also this is the truth that the final adjustment to overlap the centricity of the vehicle with that of driver's sixth sense(another way to explain about this point is not found) must be attained until actual driving test and precise adjustment would be performed with keen concentration.
Frontal total toe value reduced into 1,5mm (Tire outer diameter scaling method) brought good result on steering response and rotating noise while straight running phase.
As the tire balancing weight comes up to 20 gr, the positioning relation between the wheel changed into 180 degree rotated position on two frontal wheels. Necessary adjusting weights had been far reduced as I imagined.
Though I knew that the balancing weights were made from small rectangular iron pieces with both surfaces adhesion tape, all of them were removed and rebalanced with conventional lead weight with clumping nail onto wheel outer surface.
2012年4月1日日曜日
Inverts steering habit
Thrust adjustment using hand scale Vernier caliper proved that the right or left tendency on steering reaction does not appear in the same manner depending on the vehicle's cruising speed. The steering habit actually inverts when the speed comes up more than about 60-80 km/h.
The reason why such inverting tendency happen contrary to the law of Physics is the natural self compensation phenomena so to speak "Self Steer". We must remember the truth and the fact of steering habit like this.
Lateral precise adjustment on right rear of rear lower arm inside at 0,925mm value wiped out unstable steering habit thoroughly this morning, on BC7 SUBARU Legacy LSi US model this kind of adjustment was performed with the best keen concentration.
I realized the importance of establishment of wheel alignment and three dimensional axle constructive geometry, so any vehicle with wheels can be adjusted in the best condition if it is done by means of special technique and scaling devices.
The reason why such inverting tendency happen contrary to the law of Physics is the natural self compensation phenomena so to speak "Self Steer". We must remember the truth and the fact of steering habit like this.
Lateral precise adjustment on right rear of rear lower arm inside at 0,925mm value wiped out unstable steering habit thoroughly this morning, on BC7 SUBARU Legacy LSi US model this kind of adjustment was performed with the best keen concentration.
I realized the importance of establishment of wheel alignment and three dimensional axle constructive geometry, so any vehicle with wheels can be adjusted in the best condition if it is done by means of special technique and scaling devices.
Nervous noisy device
I know that the length of the duct designing affects most on air flow transfer in case of both compressed air and suction one by the conduit resistance of the duct, the longer and the narrower the worse.
The vacuum pump system used as long as 24 years has some terrible noise and vibration that unacceptable for me, I have been felt from the beginning when old laboratory had started, my son was an infant at that time, now I have a claim from neighborhood because of the noise pollution.
One way is the consideration of the method to isolate the cause by replacing the setting positions, and the another one is to replace the vacuum pump system into different some much more silent designed one.
As an experimental trial, ordinal family use vacuum cleaner was applied instead of the system, as supposed the suction power was reduced but the difference was not so much. It proved that the extremely high powered industrial use vacuum system does not play a good job, yes, the high power energy is consumed by the conduit resistance formed long ways under the floor of working room. However high powered vacuum pump with terrible noise and vibration might be introduced, the suction power is not so effective at the end of vacuum tip portion, if the duct way design was no good.
Then I have come to some conclusion that the low powered and smaller vacuum pump like a toy might be possible if the duct is the shortest connected directly with the liquid separation tank. This thought must be tried, then some shortest connected vacuum system with a little noise and vibration would be obtained, there is a brilliant light toward "Feeling of Success"?
Many years of chronic troublesome disease would be eliminated soon!
I'll try to find some suitable small vacuum handy cleaner that's suitable for installing just inside of working chair, four in total promptly.
I know that there are many exaggerated devices intending unnecessary cost-effective result, we must be laymen in industrial manufacturing field paying plenty of money if requested as an inevitable payment?
Remember here, the final calculations are not done by the builder of our new laboratory yet?
Of course, later and additional orders and changes of planning are lasting even now, this is the reason, I know?
The vacuum pump system used as long as 24 years has some terrible noise and vibration that unacceptable for me, I have been felt from the beginning when old laboratory had started, my son was an infant at that time, now I have a claim from neighborhood because of the noise pollution.
One way is the consideration of the method to isolate the cause by replacing the setting positions, and the another one is to replace the vacuum pump system into different some much more silent designed one.
As an experimental trial, ordinal family use vacuum cleaner was applied instead of the system, as supposed the suction power was reduced but the difference was not so much. It proved that the extremely high powered industrial use vacuum system does not play a good job, yes, the high power energy is consumed by the conduit resistance formed long ways under the floor of working room. However high powered vacuum pump with terrible noise and vibration might be introduced, the suction power is not so effective at the end of vacuum tip portion, if the duct way design was no good.
Then I have come to some conclusion that the low powered and smaller vacuum pump like a toy might be possible if the duct is the shortest connected directly with the liquid separation tank. This thought must be tried, then some shortest connected vacuum system with a little noise and vibration would be obtained, there is a brilliant light toward "Feeling of Success"?
Many years of chronic troublesome disease would be eliminated soon!
I'll try to find some suitable small vacuum handy cleaner that's suitable for installing just inside of working chair, four in total promptly.
I know that there are many exaggerated devices intending unnecessary cost-effective result, we must be laymen in industrial manufacturing field paying plenty of money if requested as an inevitable payment?
Remember here, the final calculations are not done by the builder of our new laboratory yet?
Of course, later and additional orders and changes of planning are lasting even now, this is the reason, I know?
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