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problem, then start burn-in using method 2.
When any work is performed on the machine that may alter the dynamics of the machine, such as:
• Annual cleaning and lubricating (not including regular lint removal and hook oiling)
• Removal or adjustment of either the hook or main shaft
• Adjustment of belt tension
NOTE: If you perform burn-in with the jumper in the back of the Control board (instead of from
the front display), all speed calibration values are reset back to factory settings. If you perform the
burn-in with the front handlebars attached, the speed calibration settings are not reset back to
factory settings; however the speed calibration is adjusted from where the values currently are. Run
burn-in for four to five cycles after working on the machine to ensure calibration is still good as the
dynamics of the machine may have changed.
Useful Part Numbers
QM40131
Needle bar cylinder height gauge (for all machines through January 2016)
QM49265
Rep Tool Kit
QM20204
Small jumper for remote switch
QM49261
ESD Field Service Kit
QM49400
Customer Timing Kit
QM10589-11A
Hook grub/set screws
QM20791
QM10197
Take-up Spring
QM49262
Retailer Lube Kit
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Stitch Regulation Termination Ribbon Cable
NOTE: The gender for this cable at the Control board is female.
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