
Chapter 5
PERIODIC MAINTENANCE CHART
5-6
Every
year
Lubrication
system
Analyzing Engine Oil Properties
∗
Inspection and Adjustment of Engine Oil Pressure
(Maintenance operation)
∗
Cooling
system
Inspection of Water Pump
∗
Inspection, Disassembly and Cleaning of Electromagnetic Valve
and Pressure Reducing Valve of the Cooling System
∗
Inspection, Disassembly and Cleaning of Strainer (including with/
ball tap) of Cooling Water
∗
Analyzing Coolant Properties (when only soft water is used)
(Change coolant according to the analysis results.)
∗
Air inlet
system
Cleaning and Inspecting Air Cleaner Element
Cleaning Pre-Cleaner
6-11
Electrical
system
Checking specific gravity of electrolyte
Inspection of Air Heater
∗
Air - start
system
Draining Water and Cleaning Air Starter Strainer
Inspection Safety Valve of Air Tank
Check starter valve.
∗
Check solenoid valve - clean.
∗
Check distributor valve.
∗
Check air compressor drive belt.
∗
Checking Protection Devices for Proper Operation
High coolant temperature, low oil pressure, overspeeding, starting failure, water sup-
ply failure, undervoltage, overvoltage, overcurrent, low coolant level in tank, low fuel
level in tank, low air pressure in tank, etc.
∗
Checking Auxiliary Devices for Proper Operation
Engine control, fuel transfer pump, governor motor, room ventilating fan, solenoid,
storage pump, water tank ball tap, water heater, oil heater, oil priming pump, etc.
∗
Every 2
years
Inspection of Fuel Control Linkage Ball Joints
Changing Engine Oil, Oil Filters and Bypass Oil Filter
(It is recommended to analyze engine oil properties at the same time.)
(Change oil filters whenever filter alarm turns on.)
Draining Water From Exhaust Muffler
Inspection of Thermostat
∗
Clean fuel filter (wire element type).
∗
Overhaul air compressor.
∗
Table 5-2 Periodic Maintenance Chart for Emergency Engine (2 / 3)
Service item
Page
Items marked with
¤
require special tools or large equipment. For servicing of these items, consult a Mit-
subishi dealer.