Lubricating The Hook - Pfaff 937 Instruction Manual

Care and maintenance
10

Lubricating the hook

.03
● Lay the machine head on its back.
● Fill the oil reservoir 1 up to the upper marking 3 through hole 2.
● Before operating the machine for the fi rst time or after longer stationary periods,
38
2
3
Fig. 10 - 02
Switch off the machine!
Danger of injury due to unintentional starting of the machine!
Only use oil with a mean viscosity of 22.0 mm
0.865 g/cm 3
add a few additional drops of oil into the hook race (see arrow in Fig. 10-03).
Return the machine to its upright position with both hands. Danger of crushing
between machine head and table top!
We recommend PFAFF sewing machine oil. 280-1-120 144.
1
at 15°C.
Fig. 10 - 03
2 /s at 40°C and a density of