User Manual

MAINTENANCE
NOTICE:
Galvanized steel fuel tanks, fittings,
pipes or suppl y lines should never
be used, because the fuel reacts
chemically with the zinc coating to
form pow dery flakes that can quickly
clog the fuel filters and damage the
fuel pump and injectors.
Item 3 – Fuel Lines, Flexible
Hoses
A pre-start inspection for leaks and of
hosese and fittings must be made.
Leaks — Make a visual check for
fuel leaks at all engine-mounted fuel
lines and connections, and at the
fuel tank suction and return lines.
Since fuel tanks are susceptible to
road hazards, leaks in this area may
best be detected by checking for an
accumulation of fuel under the tank.
FIRE
To avoid injury from fire, contain
and eliminate leaks of flammable
fluids as they occur. Failure to
eliminate leaks could result in
fire.
Leaks are not only d etrim ental to
machine operation, but they can also
result in added expense caused by the
need to replace lost fluids.
Hoses and Fittings — Check
hoses daily as part of the pre-start
inspection. Examine hoses for leaks,
and check all fittings, clamps and
ties carefully. Make sure hoses are
not resting on or touching shafts,
couplings, heated surfaces including
exhaust manifolds, any sharp edges,
or other obviously hazardous areas.
Since all machinery vibrates and
moves to a certain extent, clamps and
ties can fatigue with age. To ensure
continued proper support, inspect
fasteners frequently and tighten or
replace them as necessary. If fittings
have loosened or cracked or if hoses
have ruptured or wo rn through, take
corrective action immediately.
Hose Service Life — Ahosehas
a fi nite serv ice life. All hoses should
be thoroughly inspected at least every
500 operating hours (1,000 hours
for fire-resistant fuel and lubricating
oil hoses) and/or ann ually. Look
for cover damage and/or indications
of twisted, worn, crimped, brittle,
cracked or leaking lines. Hoses with
their outer cover worn through or with
damaged metal reinforcements should
be considered unfit for further service.
66 All information subject to change without notice. (Rev. 01/04)
DDC-SVC-MAN-0058 Copyright © 2004 DETROIT DIESEL CORPORATION