TM 10-4320-344-24
f .
Install two lifting eyes (4), flat washers (3), and nuts (2).
Hand-tighten
n u t s ( 2 ).
Figure 3-41.
Cylinder Head Assembly Bolt Tightening Pattern, Model 609-A.
g .
Tighten nuts in sequence shown in Figure 3-41.
Torque nuts 1-4, 7-10, 13-16,
and 19-20 to 75 ft-lbs (102 N•m),
then to 125 ft-lbs (169 N•m), then to a
final 175 ft-lbs (237 N•m).
Torque nuts 5-6,
11-12, and 17-18 to 75 ft-lbs
(102 N•m), then to 125 ft-lbs (169 N•m),
then to a final 147 ft-lbs (199 N•m).
h.
Install 12 push-rods (1).
i .
Refer to paragraph 2.21.49 and perform cold valve adjustment.
j .
Refer to TM 10-4320-344-10 and start engine.
Operate engine for one hour.
The cylinder head nuts must be retorqued and the valves readjusted after 1
hour operation.
Failure to observe this caution could result in damage to
equipment.
k.
Refer to
l .
Refer to
m.
Refer to
TM 10-4320-344-10 and stop engine.
step c above and torque cylinder head nuts.
paragraph 2.21.49 and perform warm valve adjustment.
3-93
