Figure $8\mathrm{.}13$ provides a new current state value stream

map for the family of retainers at the Jensen Bearings,

Inc. firm described in Example $8\mathrm{.}1.$ This map depicts

the value stream after Kline Steel agrees to accept daily

orders for steel sheets and also agrees to deliver the

finished goods on a daily basis.

Calculate each component of the new value stream's

reduced lead time.

a$.$ How many days of work in process inventory is held

between Press and Pierce & Form?

b$.$ How many days of raw material does the Bearing's

plant now hold?

c$.$ How many days of work in process inventory is held

between Pierce & Form and Finish Grind?

d$.$ How many days of work in process inventory is held

between Finish Grind and Shipping?

e$.$ What is the new value steam's production lead time?

f$.$ What is the new value stream's processing time?

The Farm$-4-$Less tractor company produces a grain com$-$

bine $($GC$)$ in addition to both a large $($LT$)$ and small size

tractor $($SM$).$ Its production manager desires to produce

to customer demand using a mixed model production

line. The current sequence of production, which is re$-$

peated $30$ times during a shift, is SM$-$GC$-$SM$-$LT$-$SM$-$GC$-$

LT$-$SM$.$ A new machine is produced every $2$ minutes. The

plant operates two $8-$hour shifts. There is no downtime

because the $4$ hours between each shift are dedicated to

maintenance and restocking raw material. Based on this

information, answer the following questions.

a$.$ How long does it take the production cycle to be completed?

b$.$ How many of each type of machine does Farm$-4-$Less produce in a shift?