Sinoboom GTBZ26, Руководство по обслуживанию

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GTBZ26&28J Service Manual
46
①
Oil cylinder fixture block I
②
Oil cylinder
fixture block II
③
Upper wirerope bracket
④
Lower wirerope bracket
⑤
Telescopic oil
cylinder
4. Remove adjusting nuts and rollers of
retracting wirerope and pull out the
retracting wirerope from the boom head
(the end connecting with the turntable).
①
Inner Wheel Retaining Bolt
②
Roller
③
Retracting wirerope
④
Adjusting nut
5. Remove dust brush at the boom tail.
6. Remove slide block at the boom tail.
①
Slide block fixing bolt
②
Dust brush
7. Pull out the first telescopic arm and the
second telescopic arm from the tail of the
basic arm and pay attention not to twine
or knot the retracting wirerope.
8. Place the first telescopic arm and the
second telescopic arm on a proper
support.
9. Pull out the second telescopic arm from
the tail of the first telescopic arm.
10. Place the second telescopic arm on a
proper support.
Gap Adjustment of Boom Slide Blocks
Good maintenance of telescopic arm slide
blocks is critically important for safe
operation of the machine. A friction pair is
formed between each slide block and the
telescopic arm surface. Use of improper slide
block gasket or use of old slide block for a
long time may cause damage to parts and
unsafe operations.