40 Owner’s Manual for Mobile Generator
Maintenance
1 Replace primary air cleaner when dust valve restriction gauge shows a vacuum of 25 in H
2
O.
2 If not using John Deere Plus 50 II engine oil, the interval must be decreased to every 250 hours.
Basic Maintenance Schedule—John Deere Engine
Item Daily
First 100
Hr (Break-
in Period)
Every 250
Hr
Every 500
Hr
Every
2,000 Hr
Every
6,000 Hr
As
Required
Check engine oil level
Check engine coolant level
Check fuel level
Check tire pressure
Check all electrical connections
Inspect radiator fins for debris; clean as required
Check fuel filter/water separator bowl
Check air cleaner dust valve restriction indicator gauge
1
Perform Daily Walk Around Inspection
Check oil vapor recirculation system/non-return value
Change engine oil and replace oil filter
2
Replace oil vapor recirculation filter
Service battery
Replace fuel filter elements
Check engine mounts
Check air intake hoses, connections and system
Check engine electrical ground connection
Check automatic belt tensioner and belt wear
Check cooling system
Lubricate leveling jacks
Checking Generator Drive Plate Torque
Replace air cleaner elements
Replace alternator and fan belts
Test thermostats
Check fuses
Add coolant
Check electrical wiring and connections
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