TM 10-4320-309-14
TM 4320-14/1
5-11 . REPLACE/INSPECT PISTON
This task covers:
a) Removal
c) Installation
b) Inspection
INITIAL SETUP
Tools
Calipers, Vernier, 0" to 6" (Item 20,
Appendix B, Section III)
Tool Kit, General Mechanics (Item 2,
Appendix B, Section III)
Socket Set, 8 to 19 mm (Item 6,
Appendix B, Section III)
Piston Ring Compressor (Item 12,
Appendix B, Section III)
Groove Cleaner, Piston (Item 13,
Appendix B, Section III)
Shop Equipment Automotive Maintenance
and Repair: Field Maintenance,
Common No. 2 (Item 4, Appendix B,
Section III)
Materials/Parts
Diesel fuel (Item 4, Appendix E,
Section II)
Equipment
Condition
Para
3-16
3-16
4-11
4-12
4-13
4-14
5-5
5-7
5-8
Inlet air sound enclosure assembly
removed.
Outlet air sound enclosure assembly
removed.
Volute removed.
Impeller, shaft seal, and shaft
adapter removed.
Wear plate removed.
Pump casing removed.
Crankcase cover removed.
Camshaft removed.
Balancer shaft removed.
Lubricating oil (Item 9, Appendix E,
Section II)
Crocus cloth (Item 1, Appendix E,
Section II
REMOVAL:
a.
Remove carbon deposited on the upper inside surface of the cylinder sleeve before extracting the pis-
ton.
b.
Remove two connecting rod mounting bolts (4), nuts (6), and washers (5).
c.
Remove connecting rod cap (3).
d.
Make sure the main bearing is in the proper position before removing piston.
e.
Move crankshaft to the top of the piston stroke and pull out piston.
f.
Remove connecting rod assembly from piston (refer to para 5-10).
5-33
