SWDM40 OPERATION & MAINTENANCE MANUAL
10）Keep the used servo-frame to a designated place, or install onto the machine.
FIG. 8-5-4 Servo-frame
1. Thin nut 2. Nut 3.Washer 4.Bolt 5.Slewing bearing 6.Servo-frame body
8.5.11 Checking Air Compressor Belt
After working for a certain time, air compressor belt will be slack, that will reduce the rotation,
resulting in bad refrigeration. Thus, it should be checked or changed regularly.
Manual inspection method: Press down with fingers (strength about 6kg) at the belt center of
drive pulley and air compressor pulley (FIG.8-5-5), deformation is about 5 to 8 mm.
FIG. 8-5-5 Air compressor belt
Tensiometer: check the air compressor belt with a tensiometer. The tension of a new belt is
637±108 N, a used belt is 441±88.2 N .
If only looseness is found, please adjust the tension device for the belt. If damage is found,
please replace with a new belt of the same specification.
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