Royal Consul EVA Royal 3500, Instruction Manual

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Trouble shooting
NEEDLE THREAD BREAKS
CAUSE REMEDY
Needle not properly threaded
Thread tension too tight
Something wrong with the needle
Thread is too heavy for needle
Thread check spring is broken
Needle not properly inserted
Needle plate, shuttle or sewing foot damaged Thread properly
Loosen tension
Replace needle
Change
Have a new spring fitted
Insert needle properly
Replace
BOBBIN THREAD BREAKS
Bobbin thread entangled because of incorrectly wound bobbin
Bobbin thread not under tension spring on bobbin case Wind bobbin correctly
Thread bobbin correctly
STITCHES MISSING
Needle not properly fitted on needle bar
Needle bent or blunt
Needle worn Fit needle properly
Replace
Replace
NEEDLE BREAKS
Needle bent
Needle not properly fitted
Fabric to heavy or to hard
You are pulling on the fabric Replace
Fit needle properly
Use needle of correct size
Do not pull
THREAD FORMS LOOPS
Thread tension not properly regulated
Needle thread properly threaded and/or bobbin thread not properly wound
Thread size not suited to fabric
Thread check spring not working properly
Read instructions for regulating needle and bobbin thread tension
Thread machine properly and/or wind bobbin thread correctly
Control size of needle and thread
Have spring replaced
SHRINKING OR PUCKERING OF SEAM
Tension too tight
Sewing foot pressure too strong Read instructions for regulating needle – and bobbin thread tensions
Read instructions for regulating sewing foot pressure
IRREGULAR STITCHING
Needle and bobbin threads of poor quality
Bobbin thread unevenly wound Use top quality threads
Re-wind bobbin
MACHINE DOES NOT RUN FREELY AND MAKES A NOISE
Machine needs oiling
Dust and thread in shuttle
Wrong oil used, has now clogged machine
Drive belt tension to tight Read instruction on how to oil
Read instructions on how to clean shuttle race
Clean machine carefully and re-oil with top quality oil
Loosen tension of drive belt