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HS Preventive Maintenance 7 4-monthly m aintenance jobs 01/2006 US Edition 55 V alv e adjustmen t drives 7 a Clean the loc ating di sk and th e gap be tween the lo catin g disk and t he moto r bracket of both valve a dju…

7 4-monthly maintenance jobs HS Preventive Maintenance
01/2006 US Edition
54
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HS Preventive Maintenance 7 4-monthly maintenance jobs
01/2006 US Edition
55
Valve adjustment drives 7
a Clean the locating disk and the gap between the locating disk and the motor bracket of both
valve adjustment drives with a lint-free cloth.
s Clean the ball bearing with a dry lint-free cloth.
: Check that the ball bearing is working correctly.
: Remove any visible dirt.
Turning station 7
: Clean the locating disk and the gap between the locating disk and the motor bracket of both
valve adjustment drives with a lint-free cloth.
d Wipe the black O-ring of the turning station with a lint-free cloth moistened with ethyl alcohol.
7
This O-ring must not be greased. 7
7
: Check the O-ring for damage. Replace, if required.
: Check the toothed belt for damage, Replace, if required.
7
The O-ring of the turning station can be cleaned while still installed using a cottonwool bud moist-
ened with ethyl alcohol. 7
7
For DLM2 only: 7
f Press the friction wheel of the turning station against the spring.
f Clean the stop surfaces using a cottonwool bud moistened with ethyl alcohol.
7
Assembly 7
: Insert the two O-rings into the back part of head.
: Carefully insert the distributor into its seat.
7
The small O-ring may be damaged if it is seated on the distributor during assembly. 7
Make sure that the star is turned half a revolution. 7
7
: Fit the front part of head and screw it tight.
: Attach the ribbon cables to the appropriate connectors.
: Connect the compressed air hoses.

7 4-monthly maintenance jobs HS Preventive Maintenance
01/2006 US Edition
56
7