Chapter 5
PERIODIC MAINTENANCE CHART
5-3
Periodic Maintenance Chart for Engine in Regular Use
Table 5-1 Periodic Maintenance Chart for Engine in Regular Use (1 / 2)
Service item
Page
Every 50 ser-
vice hours or
every month
Draining Water from the Fuel Tank
∗
First 50 service
hours for new or
reconditioned
engine
Retightening the Bolts and Nuts
∗
Changing Engine Oil, Oil Filters and Bypass Oil Filter
(It is recommenced to analyze the engine oil properties at the same time.)
(The oil filters must be changed when the filter alarm lights.)
Every 250 ser-
vice hours or
every year
Changing Engine Oil, Oil Filters and Bypass Oil Filter
(It is recommenced to analyze the engine oil properties at the same time.)
(The oil filters must be changed when the filter alarm lights.)
Changing Governor Oil Filter
6-8
First 250 ser-
vice hours for
new or recondi-
tioned engine
Inspection and Adjustment of Valve Clearances
(Also inspect the valve mechanisms at the same time.)
∗
Every 1000 ser-
vice hours
Inspection of V-belt and Adjustment of Belt Tension
Every 2000 ser-
vice hours
Inspection of Fuel Control Linkage Ball Joints
Inspection and Adjustment of Valve Clearances
(Also check the valve mechanisms at the same time.)
∗
Inspection and Adjustment of Fuel Injection Timing
∗
Changing Fuel Injection Nozzle Tips
(Check the spray condition and adjust the fuel injection pressure after
replacement.)
∗
Checking Movement of the Rack (during operation) of the Fuel Injection
Pump (including the governor)
∗
Every 4000 ser-
vice hours
Overhaul the Top End of the Engine
Remove the cylinder head, and inspect and service the combustion cham-
bers.
•
Inspect the connecting rod
•
Visually inspect top surfaces of each piston
•
Inspect the cylinder liner surfaces
∗
Checking the Protective Devices for Proper Operation
∗
Replacing the Unit Seals and Oil Seals in the Water Pump
∗
Checking the LLC Concentration in the Coolant
∗
Items marked with
∗
require special tools or large equipment. For servicing of these items, consult a Mit-
subishi dealer.