HS50_advance_level 1_20200522_221201 (1) - 第491页
06/2002 E dition S tudent Guide HS-50 Advance d I 12 Preve ntive Maintenance 58
Student Guide HS-50 Advanced I 06/2002 Edition
12 Preventive Maintenance
57
Vacuum generator
a Detach the vacuum generator hoses.
(Use the pliers provided in the service box for the DLM 1 and DLM 1-6 heads).
12
12
We recommend that you label or mark the compressed air hoses before detaching them.
The hoses for the DLM1 heads are already labeled and their assignment is fixed.
s Use a 2.5 mm hexagon socket-head screwdriver to unscrew the block with the 2 venturi noz-
zles.
06/2002 Edition Student Guide HS-50 Advanced I
12 Preventive Maintenance
58
Student Guide HS-50 Advanced I 06/2002 Edition
12 Preventive Maintenance
59
: Carefully clean the venturi nozzles using a lint-free cloth moistened with ethyl alcohol.
: Blow them through with compressed air.
: Grease the O-rings of the vacuum generator sparingly with Unisilkon L250L.
: Clean the vacuum generator block using a cottonwool bud moistened with ethyl alcohol and
blow through with compressed air.
: Place the cleaned parts of the vacuum generator on a clean surface.