Maintenance
36949 B MMG25I-35D-45I-55DF4 Operating Manual 39
BASIC MAINTENANCE SCHEDULE - ISUZU ENGINE
See the original equipment manufacturer’s operating manual for a complete list of mainte-
nance requirements. Failure to comply with the procedures as described in the engine
operator manual will nullify the warranty, decrease performance and cause equipment
damage or premature equipment failure. Maintenance records may be required to complete
a warranty request.
Use the schedule in the following table as a guide for regular maintenance intervals.
1
For MMG25IF4 only.
2
For MMG45IF4 only.
3
If the unit is operated in a harsh environment or fuel quality is questioned, replace every 250 hours instead
of every 500 hours.
Item Daily
First 50
Hours
(Break-
In
Period)
Every
250
Hours
Every
500
Hours
Every
2000
Hours
Check Oil Level
♦
Check Coolant Level
♦
Check Fuel Level
♦
Drain Fuel Filter
♦
Check Tire Pressure
♦
Check All Electrical Connections
♦
Clean Battery
♦
Check Fan Belt Tension (Replace If Necessary)
♦
Inspect Radiator Fins for Debris, Clean as Required
♦
Preheating Condition Check
♦
Check Engine Starting Conditions and Noise Conditions
♦
Check Exhaust Smoke Condition
♦
Replace Engine Oil
♦
♦
1
♦
2 3
Replace Fuel Filter Elements
♦
3
Clean Water Sedimenter Element
♦
3
Electromagnetic Pump Filter Replacement or Cleaning
♦
3
Oil Filter Element Replacement
♦♦
Replace Air Filter Element
♦
Lubricate Leveling Jacks
♦
Check Generator Drive Plate Torque (See Checking Gener-
ator Drive Plate Torque)
♦
Replace Fan Belt
♦
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