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Scheduled Maintenance Chart 

3,000 Miles(4,800 km)
100 Hrs Normal Use or 50 Hrs Severe Operation

-Change Engine Oil and Replace Filter
-Check Items in Maintenance Group A

6,000 Miles(9,700 km)
200 Hrs Normal Use or 100 Hrs Severe Operation

-Change engine oil and replace filter
-Clean or replace air filter
-Replace fuel filter element
-Check Items in Maintenance Groups A and B

9,000 Miles(14,500 km)
300 Hrs Normal Use or 150 Hrs Severe Operation

-Change engine oil and replace filter
-Check Items in Maintenance Groups A and B

12,000 Miles (19,300km)
400 Hrs Normal Use or 250 Hrs Severe Operation

-Change engine oil and replace filter
-Clean or replace air filter
-Replace fuel filter element
-Change geared hub oil
-Change axle oil
-Change engine coolant
-Change transmission and transfer case fluid
-Change transmission filter
-Check Items in Maintenance Groups A, B, and C

15,000 Miles(24,300 km)
400 Hrs Normal Use or 200 Hrs Severe Operation

-Change engine oil and replace filter
-Check Items in Maintenance Groups A and B

18,000 Miles(29,000 km)
600 Hrs Normal Use or 300 Hrs Severe Operation
-Change engine oil and replace filter
-Clean or replace air filter
-Replace fuel filter element
-Check Items in Maintenance Groups A and B

21,000 Miles(33,800 km)
700 Hrs Normal Use or 350 Hrs Severe Operation
-Change engine oil and replace filter
-Check Items in Maintenance Groups A and B

24,000 Miles (38,600km)
800 Hrs Normal Use or 400 Hrs Severe Operation
-Change engine oil and replace filter
-Clean or replace air filter
-Replace fuel filter element
-Change geared hub oil
-Change axle oil
-Change engine coolant
-Change transmission and transfer case fluid
-Change transmission filter
-Inspect brake fluid for moisture contamination
-Check Items in Maintenance Groups A, B, and C

27,000 Miles (43, 400 km)
900 Hrs Normal Use or 450 severe Operation 
-Change engine oil and replace filter
-Check Items in Maintenance Groups A

30,000 Miles (48, 300 km)
1,000 Hrs Normal Use or 500 severe Operation 
-Change engine oil and replace filter
-Clean or replace air filter
-Replace fuel filter element
-Check items in Maintenance Groups A and B

*Maintenance After Severe Operation
Severe operation includes extensive off-road

Maintenance Inspection Options

Group A:

- Check fluid levels and conditions for power steering pump cooling system brakes, transmission, transfer case, geared hubs, and axles.
- Check CDR valve for oil saturation
- Inspect condition of control arms, springs, and shock absorbers
- Check tire wear and condition
- Lubricate all grease fittings and body lubrication points
- Inspect geared hubs for leaking seals or damage
- Inspect condition of geared hub and axle vent lines
- Inspect Transmission transfer case shift linkage for wear, binding, distortion
- Check Fuel Filter and drain clean if necessary
- Check CTIS operation. Verify that system inflates/deflates tires
- Check winch operation and cable condition(If equipped). Free-Spool out and pay-in at least 30 feet of cable
- Check ball joints for wear
- Test drive vehicle and complete a functional check of all systems
- Check air cleaner

Group B:

- Inspect fuel injection pump, lines, and fittings for leaks or damage
- Check battery voltage and condition
- Inspect serpentine belt condition
- Inspect exhaust system and shields
- Inspect and rotate tires
- Inspect half shaft boots and ball join seals
- Inspect condition of steering column, U-Joints, tie rods, steering arm, center link, and idler arm
- Check fuel tank vent line filter
- Inspect condition of frame rails and cross members
- Check A C system operation
- Check wheel alignment

Group C:

- Inspect surge tank, radiator and shroud, A C condenser, power steering, and transmission coolers.
- Inspect all hoses and fittings for security of mounting, leaks, obstructions or damage
- Inspect fuel tank, lines, and cap
- Inspect all wiring harnesses for frays, splits, missing insulation, poor connections.
- Inspect power steering pump, power steering gear, hoses, lines, and fittings for leaks or damage

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