5. Assembling the machine head
5.1 Fitting the machine head
–
Fit the machine head 1 into the opening in the table plate.
5.2 Fitting and tensioning the V-belt
Remove protective devices
–
Remove the handwheel 9.
–
Remove the belt guard 2 on the machine head.
–
Remove the cover of the belt guard 3 on the sewing drive.
Fit the V-belt and reinstall the protective devices
–
Attach the belt pulley 6 (in the accessory pack) onto the
sewing-drive shaft.
–
Place the V-belt 7 on the belt pulley of the machine head.
–
Pass the V-belt 7 down through the opening in the table plate.
–
Fold back the upper part of the sewing machine.
–
Place the V-belt 7 on the belt pulley 6 of the sewing drive.
–
Return the upper part of the sewing machine to its original position.
–
Fit the belt guard 2 to the machine head.
–
Replace the handwheel 9.
Tension t he V-belt
–
Undo screws 8 on the base of the sewing drive.
–
Tension the V-belt 6 by swivelling the sewing drive.
When the belt is correctly tensioned it must be possible to depress
it by about 10 mm by gently pressing on it with a finger at its
mid-point.
–
Tighten screws 8.
Fit the belt guard to the sew ing drive
–
Adjust the anti-throw protectors 5 (either the cams or the brackets
are adjustable, depending on the drive type) of the belt guard 4 as
follows:
The V-belt 7 must remain on the belt pulleys when the upper part of
the sewing machine is folded back.
See the motor manufacturers’ operating manuals.
–
Screw on the belt-guard cover.
12
To Next Page
Loading...
Need help?
General
