Adjust The Air Conditioner Compressor Belt Tension; Air Conditioner Storage; Air Conditioner Components Inspection And Maintenance Schedule - SANY SY35U Operation And Maintenance Manual

SY35U Excavator OMM

Adjust the Air Conditioner Compressor Belt Tension

NOTICE!
• Check the pulleys and V-belt for damage and
wear. Make sure that the V-belt does not rub
against the bottom groove of the pulleys.
• A newly installed V-belt must be readjusted
after operating the machine for 1 hour.
1. Prepare the machine for service. See "Maintenance
Safety" on page 2-8.
2. Loosen the belt adjustment pulley locknut (2) and turn
the tension adjuster (1) to achieve the correct belt
tension.
NOTE: The tension adjuster can be accessed from below through a cutout in the machine frame.
3. Tighten the belt adjustment pulley locknut.

Air Conditioner Storage

When the air conditioner will not be used for an extended period of time, it should be operated for 3-5 minutes each
month in order to lubricate the compressor components and air conditioning system seals.

Air Conditioner Components Inspection and Maintenance Schedule

Item
Refrigerant (R134a) Check for leaks in lines, fittings, and components. Daily
Condenser Check if condenser fins are plugged.
Compressor Check the compressor function and look for leaks. Every 4000 service hours
Compressor V-belt Check tension.
Check for damage, wear, and deterioration.
Blower speed Check fan motor and fan operation.
adjustment dial
Check speed adjustment function.
Temperature Check for normal operation.
adjustment dial
Fasteners Check for loose connections, fasteners, and
locknuts.
SANY
Fig. 5-45
Description
Operation and Maintenance Manual — 0120
Maintenance
2
1
Service Interval
When required
Every 250 service hours
Daily
Daily
Every 6 months
0003840
5-45