mcjb and mcjc

[Former Member]

Hi,

in mc10 i am getting the follwing data

  tiime to repair 53 hr

  time between 62 hrs

in mcjb and mcjc  I am not getting any reports

secondly, how to calculate mttr and mtbr.

can we get equipmet dat on weekly basis.

rsv

[Former Member · Accepted solution]

Hello RSV,

When calculating the key figure Mean Time between Repair, only the start-up date can be taken into account if the indicator Start-up was set in the master data for equipment or functional locations. If the indicator was not set then the end date of the first malfunction message will be taken into account. In this case, the first malfunction message will not be used when calculating the key figure MTBR.

The average duration of a machine breakdown, MTTR (Mean Time To Repair), is calculated from the individual history of a piece of equipment. This gives the following formula:

MTTR = Total Sum of Breakdown hours / Number of Breakdown

Example :

First breakdown 08 hours
Second breakdown                06 hours
Number of breakdowns                02

MTTR = ( 8 + 6 ) / 2                = 7 hours

The average duration between two machine breakdowns, MTBR for short ( Mean Time between Repair), is calculated from the individual history of the equipment. The key figure MTBR is calculated in hours.This gives the following formula:

MTBR = (Total available hours - total downtime for previous repairs )/Number of breakdowns

The following example shows how the MTBR is calculated:

Acquisition date of pump A     01.01.94 and  First breakdown                    10.01.94.(Total run = 9 days)

Downtime                    10 hours

Second breakdown                    20.01.94. (Total run = 10 days)

Downtime                    5 hours

Number of breakdowns               2

MTBR      = (19 * 24 - 10) / 2           or X + Y (hr) / 2

= (456 - 10) / 2                or (216 + 240 - 10) / 2

= 223 hours

Regards,

Deepak

[Former Member · Accepted solution]

Hi,

Thanks for your feed back.

Thread closed

[0023053402]

Hi RSV,

            As you said you are not getting any report in MCJB & MCJC, for this Please check

whether you have defined  a ''start up date'' for your technical object or not.

To calculate the MTTR/MTBR you need to create notification with the breakdown box ticked.

MTTR & MTBR are calculated in followinfg way

MTTR = Sum of Breakdown hours/Number of Breakdown

MTBR = Sum of Available Hours - Breakdown Hours/Number of Breakdown

Sum of available Hours = Time Between Repair + Breakdown Hours

Please check on your end.

Hope this will help you.

Regards

Ritesh