Check And Replace The Engine Air Filters; Check The Engine Air Filters; Replace The Engine Air Filters; Check The Alternator - SANY SY35U Operation And Maintenance Manual

Maintenance

Check and Replace the Engine Air Filters

NOTICE!
Shut off the engine to prevent dirt from entering the engine and causing damage when
checking or replacing the air filters.

Check the Engine Air Filters

The air cleaner assembly is equipped with an air filter
restriction indicator (3). When the service indicator
window is red, airflow through the filter is restricted and
the primary air filter element must be replaced. Reset the
air filter restriction indicator after servicing by pressing the
end of the indicator body.
Replace the secondary air filter every 500 hours.
The dust valve (1) is at the bottom of the end cover (2).
When the engine is off, the dust valve should be closed; if
not, replace the dust valve.

Replace the Engine Air Filters

1. Prepare the machine for service. See "Maintenance
Safety" on page 2-8.
2. Release the two latches (4) and remove the end cover.
NOTE: Clean the interior of the housing before
removing the primary filter element.
3. Remove the primary filter element (6) and then the
secondary filter element (5).
4. Installation is in the reverse order of removal.

Check the Alternator

Prepare the machine for service. See "Maintenance Safety" on page 2-8.
Check the alternator for abnormal noise and operation. If the alternator is malfunctioning, the brushes or bearings
may have reached the end of their service life and may need to be replaced. Contact a SANY dealer for additional
information.
5-36
Fig. 5-31
Fig. 5-32
Operation and Maintenance Manual — 0120
SY35U Excavator OMM
2
1
4
3
0003839
5
6
0003093
SANY