Machine Operation
SY26U Excavator OMM
4-18
Operation and Maintenance Manual — 1119
SANY
Warm-up Operation
Perform the following warm-up items:
1. After starting the engine, adjust the throttle control lever so the engine runs unloaded at about 1400 rpm for 5
minutes.
2. Adjust the throttle control lever so the engine runs at 1600 rpm, then slowly operate the bucket for 5 minutes.
3. Adjust the throttle control lever so the engine runs at a high rpm, then operate the boom, arm, and bucket for 5
to 10 minutes.
Repeat all movements several times and stop the warm-up process. Check the gauges and indicators for normal
operating readings after the warm-up process.
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 mud from the drive sprockets, track rollers, and carrier
rollers.
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.
