TM 5-4310-379-14
5-31. Compressor Pistons, Connecting Rods, and Bearings (Cont).
c.
Install. (figure 5-47)
CAUTION
Extreme care must be taken when installing the pistons into the cylinders. Both the rings and
pistons are brittle and will break if forced, even if using a ring compressor.
NOTE
High pressure piston must be installed into the cylinder prior to installing the cylinder onto the
crankcase. The high pressure piston connecting rod will not fit through the cylinder.
(1)
Install low-pressure piston assembly (1) and connecting rod (2) in cylinder (3) .
(2)
Install high-pressure piston assembly (4) and connecting rod (5) in cylinder (3).
(3)
Ensure all flanges are free of gasket materials and clean.
(4)
Install cylinder (3) with gasket (6) on crankcase (7) whilealining connecting rods (2) and (5) in position over
crankshaft journals, and secure with eight screws (8) and lockwashers (9). Torque screws to 40Ib-ft (54
Nm).
(5)
Turn pulley (10) as necessary to allow installing of connecting rod nuts (11), washers (12), and bolts (13).
(6)
Install two bearing halves (14), bearing cap (15), connecting rod bolts (13), washers (12) and nuts (11).
Torque bolts to 40 Ib-ft (54 Nm).
(7)
Turn pulley (10) as necessary to allow installing of connecting rod nuts (16), washers (17), and bolts (18).
Torque bolts to 40 ft-lbs (54 Nm).
(8)
Install two bearing halves (19), bearing cap (20), connecting rod bolts (18), washers (17), and nuts (16).
(9)
Install handhole plate (21) with handhole plate gasket (22) and secure with ten screws (23). Torque screws
to 9 ft-lbs (1220 Nm).
(10)
Install drain plug (24) and refill oil.
FOLLOW-ON MAINTENANCE
Install cylinder head (para. 5-29).
5-144
