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![]() TM 5-2420-222-20-1 
VALVES 
This task covers: 
Adjustment (page 2-149) 
INITIAL SETUP: 
Tools 
Personnel Required 
Gage, thickness 
One 
Wrench, open-end, 1/2-inch 
Wrench, open-end, 3/4-inch 
Equipment Condition 
Wrench, pipe adjustable, 
1 to 2-inch 
1. Radiator removed (page 2-371). 
2. Rocker arm cover removed (page 2-153). 
ACTION 
LOCATION 
ITEM 
REMARKS 
ADJUSTMENT 
NOTE 
Engine may be hot or cold during valve adjustment. 
Cylinders are numbered from one to four starting at fan end of engine. 
2-149 
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