Pfaff 3734-12, Инструкция по эксплуатации, Страница: 41 / 88

Care and maintenance
11 - 1
These maintenance intervals are calculated for the average running time of a sin-
gle shift operation. If the machine is operated more than this, shorter intervals
are recommended.
11
.01
Cleaning
Clean the hook, hook compartment and toothed wheel 3 daily, several times if in continuous use.
Switch the machine off!
Danger of injury if the machine
is started accidentally!
●
Bring the needle bar to its highest
position.
●
Open the post cap and remove the bobbin
case cap and the bobbin.
●
Unscrew hook gib 1 .
●
Turn the handwheel until the point of bob-
bin case 2 penetrates into the groove of
the hook race approx. 5 mm .
●
Remove bobbin case 2 .
●
Clean the hook race with paraffin.
●
When inserting the bobbin case 2 , ensure
that the horn of the bobbin
case 2 engages in the groove of the
needle plate.
●
Screw hook gib 1 back on and close the
post cap.
87-014
11 Care and maintenance
Cleaning ..................................................... daily, several times if in continuous operation
Oiling the hook ................................................................................ daily, before operation
Checking the oil levels .................................................................... daily, before operation
Lubricating the bevel gears ............................................................................. once a year
Fig. 11 - 01
5 mm
1
2
3
●
Remove the puller cover and clean the
puller gears daily, several times if in
continuous operation.