Figure 3-29. Radiator for engine model 687-C18-ES exploded view.
(1) Inspect top and bottom tanks for holes or
3-22. Radiator for Engine Model 687C-18-ES
cracks. Repair holes or cracks by soldering or brazing.
Replace a defective tank.
a. Removal and Installation. Remove or install the
(2) Inspect all mounting hardware for burs,
radiator (TM 5-3810-201-12).
stripped threads, or other defect. Replace defective
mounting hardware.
b. Disassembly and Reassembly.
(3) Inspect and test radiator core for leaks
(1) Refer to figure 3-29 and remove
Solder or braze all leaks, or replace the core.
components as required.
(4) Discard all gaskets.
(2) Reassemble
in
reverse
order
of
(5) After assembly of radiator, test for leaks
disassembly.
by plugging all openings but one, where an air hose will
be inserted and plugged. Immerse radiator in a tank of
c. Cleaning. Refer to TB ORD 651 for cleaning
water, measure three to four psi air pressure into
and flushing instructions.
radiator, then visually inspect
d. Inspection, Repair and Test.
AGO 20051A
3-38
