TM-5-3805-254-14-P-2
TRUCK, DUMP, 20 TON, 6X4, ON-OFF HIGHWAY 71,000 GVW, IHC MODEL F-5070 (CCE)
TECHNICAL MANUAL; OPERATOR’S, ORGANIZATIONAL, DIRECT SUPPORT, GENERAL SUPPORT AND DEPT MAINTENANCE MANUAL (INCLUDING REPAIR PARTS INFORMATION AND SUPPLEMENTAL MAINTENANCE INSTRUCTIONS)
JUNE 1980
TM-5-3805-254-14-P-2 - Page 328 of 894
TRUCK SERVICE MANUAL
ENGINE
Note
:
To avoid dropping plunger, do not turn injector upside-
down.
Place injectors in a rack for protection.
Number by
cylinder from which removed.
Cylinder Heads
Compression Release Shaft
Remove shaft lockscrew and copper washer at rear of cylinder
block.
Pull shaft through block from lever end.
Note:
Do not remove stop pin from cylinder block unless
damaged.
Cam Follower Housings
Note
: Do not discard metal spacer used on some engines.
Gasket(s) total thickness varies to space cam follower
housings for establishment of injection timing.
.
Flywheel
1.
Install two (2) 5/8-18 studs in crankshaft flange to
provide support for flywheel during removal.
2.
Install two (2) 1/2-13 capscrews, threaded their entire
length, to act as jackscrew to pull flywheel from crankshaft.
Flywheel Housing
Oil Pan
Note:
Two bolts through oil pan and cylinder block
flange
at flywheel end of engine may be dowel fit.
Remove nuts and
drive out dowel bolts with soft hammer.
Rear Cover And Seal
Gear Case Cover
If gear case cover is equipped with outboard bearing at
camshaft, remove from cover.
Place two (2) guide studs into
capscrew holes to Support cover during removal.
Camshaft And Gear
Note
:
Rotate camshaft while pulling camshaft from engine.
Do not remove gear.
Connecting Rod And Piston Assemblies
1.
Turn engine right-side-up and clean all carbon from
upper inside wall of each cylinder liner and polish with fine
emery cloth.
Do not damage liner finish.
Clean area
thoroughly.
2.
Use care not to damage cylinder liners as connecting
rods are withdrawn.
Check each’ rod and cap as removed to
be sure it is stamped or labeled.
Reassemble each
connecting rod cap to mating rod, tape mating bearing shells
together and label by cylinder.
3.
Remove and discard piston rings, remove snap rings.
4.
To facilitate removal of piston pins, first heat piston in
boiling water; then push pin from piston, using finger pressure
or other suitable method.
Do not drive or otherwise force pin
from piston.
Remove and discard piston rings.
Cylinder Liners
Use ST-1201 Liner Puller Bridge and ST-1202 Liner Puller
Assembly with an impact wrench or rachet to remove cylinder
liners.
Discard "O" rings and crevice seals.
Crankshaft And Main Bearings
1.
Using ST-1178 Main Bearing Cap Puller, loosen main
bearing caps from dowels.
Lift caps and rear thrust rings from
block.
Make sure all bearing caps are marked so they can be
installed in their original locations.
2.
Remove lower main bearing shells from main bearing
caps or crankshaft.
3.
Remove crankshaft using hooks protected by rubber
hose.
Handle crankshaft with care to avoid possible damage
to finished surface.
4.
Remove upper main bearing shells and ring dowels
from cylinder block.
Tape mating halfs of bearing shells
together and identify from position removed.
CLEANING
Steam Cleaning
Steam clean all disassembled units and parts (except those
that might be damaged by steam or-moisture) with a steam jet
and dry with compressed air.
All units such as oil coolers, oil
pan, heat exchanger, etc.
should be cleaned as quickly as
possible to prevent hardening and drying of accumulated
foreign substances.
Glass Bead Cleaning Glass bead cleaning has been proven
most effective for
324
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