Operation Manual

Maintenance
Operating manual 911 - Version 00.0 - 06/2013
89
9 Maintenance
This section describes simple maintenance work that needs to be carried
out on a regular basis. This maintenance work can be carried out by the
operating personnel.
Advanced maintenance work may only be carried out by qualified
specialists. Advanced maintenance work is described in the  Service
manual.
9.1 Cleaning
Sewing dust and thread remains must be removed at least every 8 operating
hours using a compressed-air pistol or a brush. In the case of very fluffy
material to be sewn, the machine must be cleaned more frequently.
Points that need to be cleaned particularly thoroughly:
• Area around the needle (1)
• Area around the looper (2)
• Ventilation sieve on the control box (not illustrated)
Figure 58: Cleaning the sewing unit
Malfunctions due to machine contamination.
Sewing dust and thread remains can impair the operation of the
machine.
Clean the machine at regular intervals as described in the manual.
ATTENTION
Risk of injury due to flying particles.
Switch off the machine at the main power switch before starting
any cleaning work. Flying dirt particles can get in the eyes,
causing injury.
Hold the compressed-air pistol in such a way that no particles
fly near persons.
Take care that no particles fly into the oil pan.
WARNING
(1) - Area around the needle (2) - Area around the looper
཰
ཱ