SY35U Excavator OMM
Machine Operation
SANY
Operation and Maintenance Manual — 0120
4-19
TABLE OF
CONTENTS
INTRODUCTION
SAFETY
MACHINE
CONTROLS
MACHINE
OPERA
TION
MAINTENANCE
SPECIFICA
TIONS
OPTIONAL
EQUIPMENT
2. Turn the key switch to the ON position. If the engine coolant is less than 37°F (3°C), an engine preheat cycle
will start and the engine preheat symbol will illuminate. When the preheat symbol turns off, the engine can be
started.
3. Turn the key switch to the START position, and the starter motor will crank the engine. Release the key after
the engine has started, and the key switch will return to the ON position.
4. After the engine starts, check the monitor for faults or errors.
NOTE:
If the engine fails to start after preheating, wait at least 2 minutes before repeating the process.
5. Allow the engine to idle until the engine coolant temperature reaches the normal operating range before using
the machine. Operate all functions with no load for 5 to 10 minutes.
Warm-up Operation
Perform the following steps during machine warm-up:
1. Deactivate the auto idle mode after starting the engine, and adjust the throttle so the engine runs unloaded at
1400 rpm for 5 minutes.
2. Adjust the throttle so the engine runs at 1600 rpm, then slowly operate the bucket for 5 minutes.
3. Adjust the throttle so the engine runs at max rpm, then operate the boom, arm, and bucket five to ten times.
Repeat all movements several times. Check the monitor for normal operating readings.
NOTICE!
When the temperature is below 32°F (0°C) and mud is built up on the tracks, swing the upper
structure 90° and raise the machine so that one track is off the ground. Rotate the track
forward and backward to remove the mud from the sprocket, track rollers, and idlers. Repeat
for the other side.
WARNING!
•
In case of emergency, irregular engine operation, or other faults, turn the key switch to OFF
or press the emergency stop switch to stop the engine.
•
Do not operate the machine immediately after starting the engine. Insufficient warm-up of
the machine and hydraulic oil may cause slow control response or abrupt movement
during operation, resulting in serious accidents. Warm-up is especially necessary in cold
areas.
Failure to follow these warnings could result in death or serious injury.
