Operating instructions

Operating instructions
Operating manual H867 Version 00.0 - Last updated: 01/2012 29
7.16 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 special-
ists. Advanced maintenance work is described in the service manual.
7.16.1 Cleaning the machine
Sewing dust and thread remains must be removed 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.
Figure 27: Points that need to be cleaned particularly thoroughly
Areas particularly susceptible to soiling:
• Cutter on the bobbin winder for the looper thread (1)
• Area under the needle plate (2)
• Looper (3)
• Area around the needle (4)
Cleaning procedure:
• Switch off the power supply at the main switch.
• Remove any sewing dust and thread remains using a compressed-air
pistol or a brush.
Risk of injury by the needle point and moving
parts.
Switch off the sewing machine before carrying out
maintenance work.
WARNING
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q
w
(1) - Cutter on the bobbin winder
(2) - Area under the needle plate
(3) - Looper
(4) - Area around the needle
Risk of injury due to flying particles.
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