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BODY-CONNECTOR 4415783 - Caterpillar



4415783 BODY-CONNECTOR Caterpillar parts BODY
Rating:
36
Alternative (cross code) number:
CA4415783
441-5783
4415783
Caterpillar 4415783 BODY-CONNECTOR
Weight: 0.01 pounds 0 kg.

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Introduction
Refer to Specifications, "Engine Design" for the location of the cylinder valves.If the valve lash requires adjustment several times in a short period of time, excessive wear exists in a different part of the engine. Find the problem and make necessary repairs in order to prevent more damage to the engine.Not enough valve lash can be the cause of rapid wear of the camshaft and valve lifters. Not enough valve lash can indicate that the seats for the valves are worn.Valves become worn due to the following causes:
Fuel injection nozzles that operate incorrectly
Excessive dirt and oil are present on the filters for the inlet air.
Incorrect fuel settings on the fuel injection pump.
The load capacity of the engine is frequently exceeded.Too much valve lash can cause broken valve stems, springs, and spring retainers. Too much valve lash can be an indication of the following problems:
Worn camshaft and valve lifters
Worn rocker arms
Bent pushrods
Broken socket on the upper end of a pushrod
Loose adjustment screw for the valve lashIf the camshaft and valve lifters show rapid wear, look for fuel in the lubrication oil or dirty lubrication oil as a possible cause.Check Procedure
Valve Lash Check
An adjustment is NOT NECESSARY if the measurement of the valve lash is in the acceptable range. Check the valve lash while the engine is stopped. The temperature of the engine does not change the valve lash setting.
Table 5
   Inlet Valves    Exhaust Valves    
Valve Lash (Stopped Engine)    
0.20 mm (0.008 inch)    
0.45 mm (0.018 inch)    
TC Compression Stroke     1 and 2     1 and 3    
TC Exhaust Stroke (1)     3 and 4     2 and 4    
Firing Order     1,3,4,2 (2)    
( 1 ) 360° from TC compression stroke
( 2 ) The No. 1 cylinder is at the front of the engine.If the measurement is not within the acceptable clearance, adjustment is necessary.Adjustment Procedure
Valve Lash Adjustment
Note: The No. 1 cylinder is at the front of the engine.
Illustration 1 g00323903
Setting the valve lash (1) Adjustment screw (2) Feeler gauge
Accidental engine starting can cause injury or death to personnel.To prevent accidental engine starting, turn the ignition switch to the OFF position, place a do not operate tag at the ignition switch location and disconnect and tape the electrical connection to the stop solenoid that is located on the fuel injection pump.
Remove the valve mechanism cover and perform the following procedure in order to adjust the valve lash:
Put the No. 1 piston at the top center position on the compression stroke. Refer to Testing and Adjusting, "Finding Top Center Position for No. 1 Piston".
Table 6
TC Compression Stroke    Inlet Valves    Exhaust Valves    
Valve Lash    
0.20 mm (0.008 inch)    
0.45 mm (0.018 inch)    
Cylinders     1 and 2     1 and 3    
Adjust the valves according to Table 6.
Lightly tap the rocker arm at the top of the adjustment screw with a soft mallet. This will ensure that the lifter seats against the camshaft.
Loosen the adjustment locknut.
Place


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