c. During Operation.
Entering water too fast will cause water to splash up over hood and
into air intake. The engine may stop abruptly and will not crank.
Do not continue starting efforts; damage to engine will result.
(1) Enter water slowly and maintain even vehicle speed while fording.
(2) Exit water in area with gentle slope.
Hydrostatic lock is caused by the entry of substantial amounts of
water into the engine through the air intake system and
subsequent contamination of the fuel system. Hydrostatic lock
most frequently occurs during or just after fording. Water is
forced into the air intake system, is drawn into the engine, and
effectively locks-up the engine.
Notify unit maintenance if you suspect hydrostatic lock and they
will further test the engine.
d. After Operation.
Do not rely on service brakes after fording until the brakes dry out.
Keep applying brakes until uneven braking ceases. Failure to do
this may cause damage to vehicle or injury or death to personnel.
If accumulated water drains slowly through floor drain holes, refer
to unit maintenance for drilling and improving drain holes
(1) If fording operation was through salt water, wash and wipe off all salt
deposits as soon as possible.
To prevent parking brake linkage from binding, lithium grease
should be used after operating in mud. Clean mud, grit, and debris
from linkage. Apply lithium grease (Appendix D, Item 10.1) and
move linkage back and forth to work into joints.
(2) Vehicles completing shallow water fording operation must be lubri-
cated and serviced by unit maintenance as soon as possible.
Perform steps 3 through 7 only if fording was in salt water.
(3) Slide rubber boot (1) back and inspect slave receptacle (2) for evidence of
corrosion, RTV wash out, or salt water penetration of RTV sealant. If any evidence
of these conditions is found, report vehicle to unit maintenance for corrective
action. Do not connect slave receptacle positive lead (4).
(4) If no evidence of corrosion, RTV wash out, or salt water penetration of
the RTV sealant is found, slide rubber boot (1) on slave receptacle (2).