Question

(A) Develop the activity sequence model and determine the normal time for the following work activity:

An assembly worker on a production line obtains an Allen key within reach, positions it 15 cm (6 in) onto a bolt head, cranks it 7 times to seat the bolt, and then sets the key aside.
(B) Express the MTM-1 motion elements in (a) as one or more MOST activity sequence models with index numbers.
(i) Determine the normal times in TMUs for these sequence activity models.
(ii) What is the total time for this (these) sequence activity model(s) in secs?

Answer 1

Activity sequence model = A1B0G1A0B0P3F16A1B0P1A0

Tn= 10(1 + 1 + 3 + 16 + 1 + 1) = 10(23) = 230 TMU (8.3 sec)