SY50U Excavator OMM
Maintenance
SANY
Operation and Maintenance Manual — 0120
5-31
TABLE OF
CONTENTS
INTRODUCTION
SAFETY
MACHINE
CONTROLS
MACHINE
OPERA
TION
MAINTENANCE
SPECIFICA
TIONS
OPTIONAL
EQUIPMENT
Check and Replace the Air Filters
Check
The air cleaner assembly is equipped with an air filter
restriction indicator (1). When the service indicator
window is red, air flow through the filter element 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 (3) is at the bottom of the end cover (4).
When the engine is off, the dust valve should be closed; if
not, replace the dust valve.
Replace
1. Prepare the machine for service. See “Maintenance
2. Release the two latches (2) and remove the
end cover (4).
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
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.
NOTICE!
Shut off the engine to prevent dirt from entering the engine and causing damage when
checking or replacing the air filters.
Fig. 5-20
0003080
2
1
4
3
6
5
Fig. 5-21
0003093
