Ask “why” a problem is occurring and then ask “why” four more times…
For example…
- Why has the machine stopped?
A fuse blew because of an overload
- Why was there an overload
There wasn’t enough lubrication for the bearings
- Why wasn’t there enough lubrication?
The pump wasn’t pumping enough
- Why wasn’t lubricant being pumped?
The pump shaft was vibrating as a result of abrasion
- Why was there abrasion?
There was no filter, allowing chips of material into the pump
Solution: Install a filter.
The inquiring mind solves problems.
