DURKOPP ADLER H-Type 969, Service Instructions Manual

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Setting the drive
Service Instructions 969 - 01.0 - 12/2015 25
6 Setting the drive
6.1 Setting the drive ratio
The machine is equipped with a 2-step pulley, which can be used to adjust
the drive ratio between the drive motor and the machine, and increase the
penetration force of the needle.
In order to change the ratio, the drive belt must be removed and the pulley
changed to the opposite position. The drive belt is then refitted and
tensioned.
Cover
• Belt cover (

p. 13).
• Handwheel
6.1.1 Removing the belt
Fig. 16: Removing the belt
Setting steps
1. Loosen the screws (4) on the belt tensioner (3).
2. Rotate the tensioning roller (2) and belt tensioner (3).
WARNING
Risk of injury!
Crushing injuries from moving parts.
Switch off the machine before checking and setting
the drive transmission ratio.
(1) - Ridged drive belt
(2) - Tensioning roller (3) - Belt tensioner
(4) - Belt tensioner screws
①
②
③
④