Methods time measurement (MTM) document

1 Methods-Time Measurement (MTM) •MTM-2 is a system of synthesized MTM data and is the second general level of MTM data Consist of •Single basic MTM motions •Combinations of basic MTM motions Applications •Work cycle >1’ •The cycle is not highly repetitive •manual not complex or simultaneous hand motions Classifications: 11 classes of actions Special situations: •Principle of simultaneous motions •Principle of limiting motions •Principle of combined motions 2 MTM-2 System 3 MTM-2 simultaneous hand motion allowances MTM-2 classes of actions MTM-2 System 4 5 Methods-Time Measurement (MTM) •MTM-3 Save time at the expense of some accuracy: ±5%,95% Not use for operations: eye focus, eye travel time 4 categories of manual motions: handle, transport, step and foot motions, bend and arise •MTM-V Use in metal cutting operations To establish setup time for all typical machine tools MTM-C Use in baking and insurance industries,2-level system To establish time standards for clerical-related works 6 Methods-Time Measurement (MTM) •MTM-M: Use for evaluating operator work using a stereoscopic microscope •Other specialized MTM systems MTM-TE: electronic test, 3-level MTM-MEK: electronic test, 3-level, small-lot MTM-UAS: describe process, determine allowed times for batch production, 3-level system •MTM systems comparison Criteria: accuracy, number of therbligs utilized, time to analyze a job (at 90% confidence level) MTM-2 is the best 7 Maynard Operation Sequence Technique (MOST) •A simplified system: fast establish time standards •MOST identifies 3 basic sequence models: General move: free object movement through the air Controlled move: object remains contact with surface or attached to another objects during the movement Tool use: use of common hand tools •Two adaptations: Mini and Maxi MOST Mini MOST: identical, short-cycle operations Maxi MOST: long-cycle operations Both manual and computerized versions 8 9 10 . 1 Methods-Time Measurement (MTM) •MTM-2 is a system of synthesized MTM data and is the second general level of. System 3 MTM-2 simultaneous hand motion allowances MTM-2 classes of actions MTM-2 System 4 5 Methods-Time Measurement (MTM) •MTM-3 Save time at the expense of some accuracy: ±5%,95% Not use for operations:. industries,2-level system To establish time standards for clerical-related works 6 Methods-Time Measurement (MTM) •MTM-M: Use for evaluating operator work using a stereoscopic microscope •Other