Hi,

I'm working at mining company, on maintanance department. Our equipaments are based beneficiation plants and off-highway trucks. I'm working now in how to reduce or optimizate the backlog of maintanance but I don't know if there is a goal to hit (days of backlog). Some HATCH articles suggests 15 days, but I don't know if I can use it in all types of equipaments.

LeoFaria,
Go to Datapaste.com and see the presentation on backlogs... http://www.datapaste.com/pub/controlling-maximo-backlog.htm

We can even supply you with the report to help get it under control. Contact customer support on the website.
tav

quote:

Originally posted by LeoFaria:
Hi,

I'm working at mining company, on maintanance department. Our equipaments are based beneficiation plants and off-highway trucks. I'm working now in how to reduce or optimizate the backlog of maintanance but I don't know if there is a goal to hit (days of backlog). Some HATCH articles suggests 15 days, but I don't know if I can use it in all types of equipaments.

The question which comes to me ist:
Is the backlog just a KPI or what do you want to achieve with the backlog ?

My definition of backlog: All open and/or outstanding workorders which could be done at the scheduling date.
By this definition backlog is ok.
- Backlog is required to have potential to plan and schedule.
- If the amount of backlog (in terms of working hours) does not change it is ok
- Changes in the backlog must be traced and handled !

I may be off subject but you are asking how to manage the backlog or efficiently reduce it (in size).
There are many theories on this subject.
The best approach - in my experiences - is to establish a weekly schedule process. And before the scheduling of work, the backlog itself must be at > 90% planned. Once there - your planning staff should be able to maintain that percentage.

Back to scheduling: a weekly schedule needs to be created each week (ideal amount of time looking ahead) which is resource leveled against projected availability.

I do this by setting up calendars for each worker (they could even have the same calendar) and also entering planned absences [exceptions to the calendar].

You can see my design theory for weekly scheduling on Maintenance Technology March 2005, called The Elusive Weekly Schedule. If you search on thsoe 4 exact words, it will be the number one article read.

jreeve@synterprise.com

Leo, your question is what is the right amount of backlog? I think it's about 2 to 2.5 crew-weeks which means you should have jobs at hands for those guys to do. Anything more or less is not good.