Rapid-air AIR FEED / RAPID MASTER WITH KEYPAD Manuel d'utilisateur télécharger pdf (Page 12)

12

Problem Possible Causes Remedy

characteristics and possible causes

of troubles with rapid-air feeds (continued)

Cushion pistons act too slow and

provide too much cushion.

Mist of oil coming from exhaust

hole.

Feed has difﬁculty pushing last

part of progression.

Over feeding.

Under feeding.

– Excessive oil, reduce supply.

– Excessive oil, reduce supply.

– Feed is not inline with die.

– Stock excessively dirty or oily.

– Feed is operating too fast.

– Stock and feed clamps may be loose.

– Insufﬁcient air pressure.

– Stock has large slitting burr.

– Stock clamp and feed clamps

are loose.

– Feed is not lubricated.

– Stock excessively dirty.

– Feed may be feeding before

punches are clear from stock or die.

– Feed may be operating too slow.

– Adjust air / oil mixture.

– Adjust air / oil mixture.

– A slight angular adjustment of the

feed will reduce the binding of the

stock on the die guides.

– Clean unit and stock. Run and retest.

– Turn speed adjusting screw clockwise

to slow down.

– Although nuts are self-locking, they

can in time work themselves loose;

retighten the nuts.

– Adjust air pressure to between 80

and 100 PSI.

– Check clearance between clamps

and stock.

– Although nuts are self-locking, they

can in time work themselves loose:

retighten them.

– Check lubricator at air inlet, there

should be oil in the bowl.

– Clean away dirt which may be

present between slide block and

main body area.

– Adjust the amount of depression of

the actuating valve.

– Turn speed adjusting screw

counter-clockwise to increase speed.

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