PAGE 36 — DIS185SSI4F AIR COMPRESSOR • OPERATION MANUAL — REV. #0 (12/19/16)
MAINTENANCE (ENGINE)
BASIC ENGINE INSPECTION AND MAINTENANCE
See Table 9 below for a general engine inspection and maintenance checklist. For more detailed maintenance, refer to
the Isuzu Engine Owner's Manual.
Table 9. Inspection/Maintenance
10 Hrs
DAILY
250 Hrs
500 Hrs
or Every
12 Months
3000 Hrs
or Every
36 Months
OTHER
Engine
Check Engine Oil and Coolant Levels
X
Check Fuel Filter/Water Separator Bowl
X
Check Air Cleaner/Element
X
Exhaust System*
5
X
Check for Leaks/Hoses/Clamps*
4
X
Check for Loosening of Parts
X
Change Engine Oil and Oil Filter *
1
X
Clean Unit, Inside and Outside
X
Replace Fuel Filter Elements
X
Check Engine Mounts
X
Service Battery
X
Check Air Intake Hoses
X
Check Fan Belt Condition
X
Check Automatic Belt Tensioner
X
Check Electrical Ground Connection
X
Clean Radiator, Check Cooling System
X
Coolant Solution Analysis, Add SCAs As Required
X
Pressure Test Cooling System
X
Check Engine Speed
X
Test Thermostats
X
Check and Adjust Engine Valve Clearance
X
Test Glow Plugs
X
Flush and Refill Cooling System*
2
2 yrs. or 2000 hrs.
Clean Inside of Fuel Tank
1000 hrs.
Check Crankcase Ventilation Filter
1500 hrs.
Replace Air Cleaner Elements *
3
As Required
*
1
During initial operation of a new engine, change oil and filter between a minimum of 100 hrs. and a maximum of 250 hrs. Service interval depends
on type of oil.
*
2
Add “Supplemental Coolant Additives (SCAs)” to recharge the engine coolant.
*
3
Replace primary air filter element when restriction indicator shows a vacuum of 625 mm (25 in. H
2
0).
*
4
If blowby hose needs to be replaced, ensure that the slope of the blowby hose is at least a 1/2 inch per foot, with no sags or dips that could
collect moisture and/or oil.
*
5
A
ccumulation of carbon (soot, unburned fuel) in the exhaust pipe line and muffler could cause not only system derates but also could lead to fire
incident. To destroy the soot and unburned fuel, run the unit at rated power for some period of time until the exhaust gas become mostly colorless
every 250 hours operation time. Carbon will be generated more readily when the unit operates at less than 30% of rated power. In this case,
perform the above procedures at shorter interval times.
