Excavator and backhoe load charts provide lift capacities for a range of lift heights and radii. The chart will also show the capacity over both ends and sides of the machine. Similar to cranes be sure to use the chart that matches the specific machine and configuration.

: a schematic and graphic device to indicate the amount of authorized work yet to be performed by a machine, a group, or any other producing unit in a factory.

2. The worker and machine process chart (Man-machine chart) is used to study, analyze, and improve one workstation at a time. The chart shows the exact time relationship between the working cycle of the person and operating cycle of the machine.

A man-machine chart graphically represents the relationship between the manual work performed by one or more operators and one or more machines involved in a manufacturing process.

Types of Multiple Activity Charts (With Diagram)

• This article throws light upon the three important types of multiple activity charts. The types are: 1. Man-Machine Chart 2. Man-Man Chart 3. Simo Chart.
• Therbligs in the SIMO chart are critically examined to explore the possibility of:
• Construction of “SIMO” Chart:

The last and most important plus expensive step in process of method development is the simplification of activities in order to allow the operator/worker to complete the job more quickly and easily by reducing the number of operations, reducing or eliminating the delays and storage etc.

Frederick W. Taylor

Now because by definition method study includes the study of all facets of human work and all factors affecting the work so motion study be considered as a part of method study.

The aim of method study is to analyse a situation, examine the objectives of the situation and then to synthesize an improved, more efficient and effective method or system.

There are certain factors which are to be taken into account while selecting the work for method study: (1) Economic factors: Only those jobs are selected which keep good economic importance. Jobs involving bottlenecks which hold up other production operations, operations involving repetitive work etc.

Recording Techniques For recording the time relationship between parts, the chief techniques used are: Multiple activity charts and Simo Charts. For recording the movements, the chief techniques used are: Memo-motion analysis, Micro-motion analysis and Flow diagrams.

The main aim of motion study is to find the scheme of least wastage of labour. Subsequently, the scope of Motion Study was enlarged and it was named as Method Study.

The following benefits are derived by the Management from time and motion study:

• Optimum utilisation of materials, plant, labour and financial resources is possible.
• Labour requirements can be properly assessed.
• Determination of fair wage rates and effective wage incentive schemes can be determined.