---67---
H. Periodic maintenance
H. Periodic maintenance
H 1. General
Periodic maintenance for the extra equipment are in
section K, after each extra equipment.
H 1.1. Air filters
69---59
2
1
Change air filter (1):
--- At least once a year
--- After every 1000 hours
--- After 5 cleanings, when the warning light of the air
cleaner has illuminated 5 times
Change safety air filter (2):
--- At least once a year
--- After every 1000 hours
Unless it is necessarry do not open the cover of the air
cleaner housing. Only associated with the situations
mentioned before. During the maintenance check, that the
cover of the housing, pipes and unions are in good
condition.
69---59,4
1
A
A low---pressure indicator with a warning lamp is
connected to the air cleaner. When the lamp (A) lights up
on the instrument panel, the filter must be cleaned. If the
warning light illuminates quickly in dusty conditions,
check the ejector pipe (1) is fitted properly (800, 900), the
models 600 and 700 have dustvalves.
Cleaning:
--- Always stop the engine before cleaning. A blockage of
the air filter is indicated by a change of the engine beat,
smoky exhaust and reduction of engine power.
--- Check the inside of the air cleaner housing and the inlet
pipe. Dirt on these parts indicates that the filter element
is defective or has not been fitted properly.
--- Clean the filter element with compressed air, max.
pressure 500 kPa, or with an effective vacuum cleaner.
NOTE: The filter element must not be cleaned more
than 5 times, after which it must be replaced. The filter
must be changed every 1000 hours in accordance with
the maintenance requirement:--- change of the safety
filter.
--- Hold up the filter element against the light (or shine a
flashlight through the centre hole) and inspect the
element.
--- If any holes are noticed the filter element must be
changed.
Filters fitting, see maintenance point 32 on page 79.
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