Maintenance and care 7
TW85 85
7.9.5.1 Air intake
• Check the air filter attachment and retaining
straps for damage.
• Check function and condition of air intake pipe
(67/1)
• Check the tightness of the air intake between
the air filter and the engine.
• Examine rubber parts for damage.
Replace defective parts immediately!
7.9.5.2 Cartridge maintenance intervals
Air filter main cartridge
• The air filter main cartridge must be replaced as
soon as the filter maintenance indicator lamp
(68/29) on the instrument panel lights up during
operation.
• A brief delay in maintenance does not result in
lower filter efficiency.
Air filter safety cartridge
The air filter - safety cartridge must be replaced in
the following cases:
• after the fifth maintenance of the main cartridge
• after 2 years of operation at the latest
• if the service indicator switches on after the
main cartridge has just been serviced
• if the main cartridge is damaged
• if the safety cartridge is defective
HM32-066
1
Fig. 67 Air filter
HM32-067
0
4/4
,
!
P
29
Fig. 68 Operation
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