SY26U Excavator OMM
Maintenance
SANY
Operation and Maintenance Manual — 1119
5-21
T
ABL
E OF
CONT
E
N
TS
INTRODUCTION
SAFE
T
Y
MACHIN
E
CONTROLS
MACHINE
OP
ERA
T
IO
N
MA
INTENANCE
SPEC
IFI
CA
TIO
N
S
OP
T
IO
N
A
L
EQUI
PMENT
4. Adjust the belt if it is outside of specification. Loosen
the adjusting plate fastener (5) and alternator bracket
fastener (6).
5. Use a lever between the alternator and adjusting plate
bracket to properly tension the belt. Hold the alternator
in this position and tighten the adjusting plate fastener.
6. Tighten the alternator bracket fastener.
7. Check the fan belt tension to confirm adjustment.
Replace the Fan Belt
Visually inspect the condition of the belt. Fan belts that
have been exposed to oil or engine coolant, or show signs
of damage or wear, must be replaced.
1. Prepare the machine for service. See “Maintenance Safety” on page 2-8.
2. Remove the operator seat. See “Check and Adjust the Fan Belt Tension” on page 5-20.
3. Loosen the adjusting plate fastener (5) and alternator bracket fastener (6). Move the alternator toward the
engine until the belt can be removed.
4. Install a new fan belt in the reverse order of removal. Adjust the belt tension. See “Check and Adjust the Fan
5. Run the engine at low idle for 5 minutes and then shut down the machine. Check the belt tension and adjust as
needed. Install operator seat.
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.
Check the Starter
Prepare the machine for service. See “Maintenance Safety” on page 2-8.
Check the starter motor for abnormal noise and operation. If the starter is malfunctioning, contact a SANY dealer
for additional information.
Fig. 5-7
0003220
6
5