34
S
ERVICE
S
CHEDULE FOR
S
UPRA 550 (
C
ONT)
Petroleum and
Synthetic Oil
With and With-
out Bypass
At
1500 Hours
D
Check fuel pump filter.
D
Replace the cartridge of the dry air filter.
D
Check battery terminals and fluid level.
D
Check compressor oil level. Use polyol ester
oil (POE) approved by CARRIER.
D
Check alternator brushes. Check for diesel and
standby hours.
D
Check engine thermostat.
D
Check defrost:
-- Check timer setting and function
-- Check refrigerant control valves
-- Fans stop or defrost damper closes
-- Defrost ends automatically
-- Water drains from evaporator
D
Check fan motor brushes.
D
Check and adjust rocker arms.
D
Check belts as necessary.
Petroleum and
Synthetic Oil
With and With-
out Bypass
At
2000 Hours
D
Replace oil filter.
D
Clean radiator/condenser coil.
D
Check refrigerant level.
Petroleum and
Synthetic Oil
With and With-
out Bypass
At
3000 Hours
D
Change fan motor brushes.
D
Check and rebuild alternator.
D
Check engine speed:
High -- 2300 to 2350
Low -- 1800 to 1850
Petroleum and
Synthetic Oil
With and With-
out Bypass With
Standard Cool-
ant
At 6000
Hours
D
Check all belt tension pulleys
D
Change anti--freeze and flush cooling system.
D
Check
bearings in clutch and electric motors.
D
C
lean and adjust fuel injectors.
Petroleum and
Synthetic Oil
With and With-
out Bypass With
Ext. Life
At
12000 Hours
D
Check all belt tension pulleys
D
Change anti--freeze and flush cooling system.
D
Check
bearings in clutch and electric motors.
D
C
lean and adjust fuel injectors.