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 381 of 894
TRUCK SERVICE MANUAL
ENGINE
4.
Use mineral spirits or equivalent to clean out
lubricating oil and contaminates trapped in housing by
forcing cleaner through oil ports in reverse direction of
normal flow.
5.
To remove element (1) from housing (2):
a.
Insert
two long rods into outside row of tubes opposite each
other.
b.
Place a flat bar on top of housing and bundle face
between rods, and rotate element in housing to unseal
lower "O" ring.
c.
Remove tube bundle from cooler housing.
Two small
threaded holes are provided in end of tube bundle; if
necessary make a suitable puller utilizing the two
threaded holes in end of tube bundle.
6.
Discard "O" rings (3) and retainers,(4).
Note:
To prevent hardening and drying of foreign
substances, clean core or cores as soon as possible
after removal.
CLEANING (OI L SIDE)
1.
Immerse core in approved cleaning solvent, let stand
several minutes.
Force cleaner around tubes until clean.
WARNING
This operation should be done in open air or in a well
ventilated room to avoid toxic effect of chemicals
being used.
2.
If oil passages are badly clogged, circulate an oakite
or alkaline solution through the tubes.
After cleaning,
flush thoroughly with hot water.
CLEANING (WATER SIDE)
1.
Plug oil inlet and outlet.
2.
Immerse oil cooler in solution of one part muriatic acid
and nine parts water after adding 1 lb.
[0.45 kg] of oxalic
acid and 0.01 gal.
[0.04 lit., 0.008 UK gal.) of pyridene to
each 5 gal.
[18.9 lit., 4.16 UK gal.] of acid.
3.
Remove core when foaming and bubbling stops.
Immerse unit in a 5% solution of sodium carbonate.
Remove when bubbling ceases and pressure flush with
clean warm water.
Note:
Flush inside of tubes with clean, light oil after both
oil and water sides of cooler have been cleaned.
INSPECTION
1.
Seal both ends of tube bundle.
Immerse tube bundle
in water and apply approximately 40 psi [2.8 kg/sq cm] air
pressure.
If air bubbles are observed, mark bundle for
repair or replacement.
2.
Inspect support for broken or cracked welds; repair or
replace as necessary.
1.
Element
3.
“O” Ring
2.
Housing
4.
Retainer
Fig.
7-9 (N10741) Lubricating oil cooler exploded view
377
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