OM3-80 12/21
Service As Required (Continued)
57
RG19661,00003FD -19-01MAR13-1/1
Bleeding Fuel System
lines can cause serious injury. Do not disconnect
or attempt repair of fuel lines, sensors, or any
other components between the high-pressure
fuel pump and nozzles on engines with High
Pressure Common Rail (HPCR) fuel system. Only
technicians familiar with this type of system can
perform repairs. (See your John Deere dealer.)
the skin causing serious injury. Avoid hazards
by relieving pressure before disconnecting
hydraulic or other lines. Tighten all connections
before applying pressure. Search for leaks
with a piece of cardboard. Protect hands and
If an accident occurs, see a doctor immediately.
removed within a few hours or gangrene
may result. Doctors unfamiliar with this
type of injury may call the Deere & Company
Medical Department in Moline, Illinois, or other
knowledgeable medical source.
IMPORTANT: Four-valve cylinder head engines are
especially sensitive to fuel contamination. Do
not crack any fuel lines to bleed the fuel system.
NOTE: Normally the fuel system on these engines is
self-priming and self-bleeding, and does not require
a bleeding procedure by the operator.
TS1343
—UN—18MAR92
High-Pressure Fuel Lines
X981
1—
UN—23AUG8
8
High Pressure Fluids
ON for 60 seconds to prime the fuel system. It may be
necessary to turn the key off and on again to reprime the
system before starting.
