Heating And Air Conditioning System-Cab; Check Heating And Air Conditioning System Operation; Clean Or Replace The Ventilation Filter Screen-Cab - SANY SY35U Operation And Maintenance Manual

SY35U Excavator OMM
Heating and Air Conditioning System–Cab

Check Heating and Air Conditioning System Operation

See "Heating and Air Conditioning System" on page 3-26.
1. With the engine running, adjust the blower speed adjustment dial to check start-up, fan speed control, and
airflow.
2. Turn the temperature adjustment dial to the right and check if heat is present.
3. Turn the temperature adjustment dial to the left and check if the air temperature decreases.
4. Check the fresh-air/recirculation switch function.
5. Check the air conditioning power switch function.
Clean or Replace the Ventilation Filter Screen–Cab
WARNING!
• Do not allow compressed air, pressurized water, or steam to come into contact with skin.
• Always wear goggles, gloves, and other personal protective equipment (PPE).
Failure to follow this warning could result in death or serious injury.
NOTICE!
• Clean the ventilation filter screen every 250 hours to prevent machine damage.
• Use low-pressure compressed air less than 3 psi (20 kPa).
• If the machine is in a dusty environment, a shorter service interval will apply and the filter
must be cleaned more often.
1. Prepare the machine for service. See "Maintenance Safety" on page 2-8.
SANY Operation and Maintenance Manual — 0120
Maintenance
5-43