Manual operation can be classified into three categories, among others:
1. Pure extravagance.
unnecessary work that must be removed is the wait time, the buildup of the product, and multiple transfers.
2. Operation Without Added Value.
Operations that are basically useless but may be required in the existing operating procedures, such as taking parts, opened the package from the seller, moving tools from one hand to another, etc. To get rid of it needs to be a change in the spatial lines or items of the seller delivered in a state without packaging.
3. Operations Net Increase the Value Added.
Conversion or processing operations which increase the value of raw materials or semi-finished by adding a laborer namely subperakitan spare parts, placement of raw materials, materials pengerjakan gears, body painting work, etc.
Net operating for value added merupaka small part of the overall operation, mostly only increase costs. By increasing the percentage of net operating to increase the value-added, labor requirements per unit can be reduced, so that the number of workers in each workplace is reduced.

The first step, eliminating waste pure.
He continued as far as possible reduce operating without added value without incurring unnecessary costs.
Last check the operation of the net to increase the value added to determine whether the various operations that can be improved even further as part of the overall operation by using several types of gear automatic machines to replace the current operation is done by hand.