Operation Manual

Operation
Operating manual 171/173 Version 01.0 - 01/2016 45
5.15 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 must only b
e carried out by qualified
specialists. Advanced maintenance work is described in the
 Service manual.
5.15.1 Cleaning work
Places that need to be cleaned particularly thoroughly
and cleaning intervals
Machine area Cleaning interval
• Area under the throat plate
• Area around the looper
• Area around the thread pick-up disk
• Bobbin housing
• Thread cutter
• Area around the needle
• Air inlet openings on the motor fan sieve
Every 8 operating hours
•Oil pan Every 40 operating hours
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
Malfunctions possible 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.
Observe the cleaning intervals set out in the table. In the case
of materials with a high lint content, the machine must be
cleaned more frequently.
ATTENTION