Dynapac CA 251, Руководство по обслуживанию

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10 CA 251 M251-1EN1
EVERY 10 HOURS OF OPERATION (DAILY)
Scrapers (CA 251)
– Checking, adjusting
2
1
Adjust the distance as follows:
Loosen all four screws, while holding the nut on the
inside.
Set the scraper about 20 mm (0.79 in) from the drum.
Tighten the fastening screws.
Remember that the drum moves when the
machine turns. If adjustments are made closer
than the recommended value the scrapers
may be damaged and cause increased wear
of the drum.
Fig. 5 Scraper
1. Fastening screws
2. Scraper
Drum:
Check that the scrapers are intact, and adjust the
distance as follows:
Loosen all the fastening screws.
Set the scraper against the drum.
Tighten the fastening screws.
Tyres:
Check that the scrapers are intact, and adjust the
distance as follows:
The scraper blade (4) should lie against the tyre with a
20-mm pre-tensioning of the spring (3). The pre-
tensioning is to be set with the scraper tensioner (2).
For transport driving, release the scraper from the tyre
and tension with the cotter (1).
Fig. 6 Scraper
1. Fastening screws
2. Scraper
2
3
4
Fig. 7 Tyre scraper
1. Cotter
2. Scraper tensioner
3. Spring
4. Scraper
1
1 2
Scrapers (CA 251A)
– Checking, adjusting