SANY SY155U, Руководство по эксплуатации и обслуживанию, Страница: 86 / 192

4-18
MACHINE OPERATION
SY155U Excavator OMM
NOTICE!
In order to prevent starter damage, do not operate
the starter motor for more than 15 seconds. If the
engine does not start. allow the starter motor to
cool for at least 2 minutes. If the engine does not
start the second time, turn the key switch to OFF
and wait a minimum of 2 minutes before trying to
start the engine again.
If the engine fails to start after five attempts,
contact a SANY dealer.
10. Turn the key switch to START. The starter motor will
crank the engine. After the engine has started,
release the key and the key switch will return to the
ON position.
NOTE: If the engine fails to start after preheating, wait at
least 15 seconds before repeating the process.
11. Allow the engine to idle until the hydraulic oil reaches
104°F (40°C) before using the machine. Once the
hydraulic oil reaches 104°F (40°C) complete the
warm-up operation. See “Machine Warm-up” on
page 4-18.
12. 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.
Machine Warm-up
CAUTION
Do not operate any control levers or pedals when
the hydraulic oil temperature is below 104°F
(40°C). Always warm up the machine until the
hydraulic oil temperature rises to an operational
level. Failure to follow this caution could damage
the machine.
NOTICE!
• In case of emergency, irregular engine operation,
or other faults, turn the key switch to the OFF
position to stop the engine.
• Insufficient warm-up of the machine may cause
slow response or abrupt movement during
operation, resulting in serious accidents.
Warm-up is especially necessary in cold areas.
• Operating the machine before the hydraulic oil is
warmed to operating temperature may cause
slow control response or abrupt movement
during operation.
Failure to follow these warnings could result in
death or serious injury.
Do not operate the machine immediately after starting the
engine. Allow the machine and hydraulic system to warm
up. Complete the following warm-up procedure:
1. Deactivate the Auto-Idle mode after starting the
engine, and adjust the throttle so that the engine runs
unloaded at 1400 rpm for 5 minutes.
2. Adjust the throttle so the engine runs at 1500 rpm,
then slowly operate the bucket for 5 minutes.
3. Adjust the throttle so the engine runs at a high rpm,
then operate the boom, arm, and bucket for 5 to 10
minutes.
Repeat all procedures several times and stop the
warm-up process. Check the monitor and indicators for
normal operating readings after the warm-up process.
Idling the Engine
Idling the engine for long periods wastes fuel and causes
carbon formation, oil dilution, formation of lacquer or
gummy deposits on the valves, pistons, and rings, and
rapid accumulation of sludge in the engine.
Allow the engine to idle until the engine temperature
reaches 140°F (60°C) before beginning operation.