N7201A617E00_0317 - 第117页

NPM-W 2 EJM7DE-MB-02M-00 13-slot feeder Cutting unit Used -tape bo x Feeder table 2-1-6 -20

NPM-W2 EJM7DE-MB-02M-00

Maintenance

2-1-6

Periodic inspection points

by unit 11

<Others> (option)

Slot

Tray feeder magazine

Tray feeder drawer

Tray feeder pallet

Pallet

Table surface

Linear guide

Cam block

Cam plate (inside)

Over-

view

2-1-6-19

NPM-W2 EJM7DE-MB-02M-00

13-slot feeder

Cutting unit

Used-tape box

Feeder table

2-1-6-20

NPM-W2 EJM7DE-MB-02M-00

Part exchange due to

limited-life

2-1-7-1

Maintenance

2-1-7

■About part aging degradation trouble

Some parts installed in our machine suffer from aging degradation during long term use.

We call such parts limited-life parts.

Some of the limited-life parts, if used past their estimated useful life, could lead to failure

that involves smoke, offensive odors or risks at work.

For your continued safety, please replace those parts during a recommended

replacement period.

■Part failure occurrence

Depending on the occurrence time, a

part failure has three general

periods (stages) - early failure, chance

failure, and wear-out failure.

・Early failure:

Failure that occurs due to a

manufacturing

or other defect during initial operations.

・Chance failure:

Sudden and unpredictable failure that

occurs during the useful life of a

part.

・Wear-out failure:

Failure that occurs as a result of aging

degradation. The number of such failures

sharply increases near the end of the

useful life of parts.

Figure 1. Age of service and failure rate

■Replacement of part

To use the machine longer

Parts or units used in the machine have limited life-spans. To use the machine over a long period of time,

replace the affected parts or units before the end of their life. Please contact us for replacement.

Over-

view

For limited-life part items and a guide for the recommended replacement period, refer to the list in

this chapter.

* Part life is influenced by the usage status or environment.

The recommended replacement period stated in the list is used only as a guide. It is not meant to

guarantee the length of the part’s life.

●In NPM-W2, parts and units corresponding to “Replacement of service life-limited component (7 years)”

and “Replacement of service lift-limited component (15 years)” are not installed.