KIT-SPRING CUP 7N6098 - Caterpillar

Overhaul Intervals
Some factors that are important for determining the overhaul intervals include the following considerations:
Performance of preventive maintenance
Use of recommended lubricants
Use of recommended coolants
Use of recommended fuels
Proper installation
Operating conditions
Operation within acceptable limits
Engine load
Engine speedGenerally, engines that are operated at a reduced load and/or speed achieve more service life before an overhaul. However, this additional service life is for engines that are properly operated and maintained.Other factors must also be considered for determining a major overhaul:
The total amount of fuel consumption
The service hours of the engine
An increase of oil consumption
An increase of crankcase blowby
The wear metal analysis of the lube oil
An increase in the levels of noise and vibrationAn increase of wear metals in the lube oil indicates that the bearings and the surfaces that wear may need serviced. An increase in the levels of noise and vibration indicates that rotating parts require service.Note: Oil analysis can indicate a decrease of wear metals in the lube oil. The cylinder liners may be worn so that polishing of the bore occurs. Also, the increased use of lube oil will dilute the wear metals.Monitor the engine as the engine accumulates service hours. Consult your Caterpillar dealer about scheduling a major overhaul.Note: The driven equipment may also require service when the engine is overhauled. Refer to the literature that is provided by the OEM of the driven equipment.Using Fuel Consumption For Calculating the Overhaul Intervals
Experience has shown that maintenance intervals are most accurately based on fuel consumption. Fuel consumption corresponds more accurately to the engine load. Table 1 lists average ranges of fuel consumption and service hours for the C32 engine. Table 2 lists the recommended overhaul intervals for the C32 engine.
Table 1
Maintenance Interval Schedule
Service Hours and Fuel Consumption    
Interval     Engine Rating (1)    
C D    
250 Service Hours    
40 000 L (10,500 US gal)    
50 000 L (13,200 US gal)    
500 Service Hours    
80 000 L (21,000 US gal)    
100 000 L (26,400 US gal)    
1000 Service Hours    
160 000 L (42,000 US gal)    
200 000 L (52,800 US gal)    
2000 Service Hours    
320 000 L (84,000 US gal)    
400 000 L (105,600 US gal)    
3000 Service Hours    
480 000 L (126,500 US gal)    
600 000 L (158,400 US gal)    
( 1 ) For more information on engine ratings, refer to this Operation and Maintenance Manual, "Engine Rating Definitions"
Table 2
Overhaul Intervals    
Engine Rating (1)     Overhaul (Top End)     Overhaul (Major)    
C    
1 000 000 L (264,000 US gal)    
2 000 000 L (528,000 US gal)    
D    
1 000 000 L (264,000 US gal)    
2 000 000 L (528,000 US gal)    
E     None     5000 service hours or
530,000 L (140,026 US gal)    
( 1 ) For more information on engine ratings, refer to this Operation and Maintenance Manual, "Engine Rating Definitions"
Maintenance intervals must be reduced for engines that operate in a