Northern Lights and NL1066H3, Руководство оператора

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ONL2-2 7/13
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1. Whenever the fuel system has been opened for
service, (lines disconnected, fi lter changed, etc.) it
will be necessary to bleed air from the system.
a. To bleed the fuel system, loosen the bleed plug
(Figure 17-D)
on the fuel fi lter.
Operate the primer pump lever on fuel transfer
pump (see component locations) until most of the
air bubbles are expelled and clear fuel escapes
the bleed plug. Tighten the bleed plug.
b. Do not bleed fuel system at any location on the
injection pump if it is a VP44 pump.
c. If engine does not start, loosen fuel line
connection at injection nozzle. Always use two
wrenches when loosening or tightening fuel
lines at nozzles and injection pump to avoid
damage. With throttle on full, crank the engine
over for 15 seconds with the starter until fuel
without air fl ows from the loose fuel pipe
connection. Repeat procedure for remaining
nozzles, if necessary, until engine starts or until
air has been removed from system. Tighten the
connections to 20 foot lb. (27 N•m).
d. For models with an electronic transfer pump,
bleed the fuel system using the electronic
transfer pump instead. The ignition should be on
and allow 40 seconds for the pump to complete
the priming. If additional system bleeding is
needed, do it by loosening the fuel line
connections at the injection nozzles.
SP11. INJECTORS
1. Fuel injectors should be checked by a Lugger-
Northern Lights dealer or qualifi ed fuel injection
shop every 500 hours.
2. Injector Removal:
You will need the following special tools:
JDE38A-Injection Nozzle Puller
JDE39-Nozzle Bore Cleaning Tool, JD258-Pilot Tool
a. Before removal, carefully remove all dirt from
the cylinder head around fuel injection nozzles.
Clean with compressed air to prevent dirt from
entering the cylinders or valve seats. Plug the
bore in the cylinder head after each fuel injection
nozzle has been removed. Cap fuel line openings
as soon as they are disconnected.
Servicing
b. Immediately fi t protective caps over the
nozzle tips and the line connections to avoid
handling damage.
c. Do not bend the fuel delivery lines. When
loosening the fuel pressure lines, hold male union
of nozzle line stationary with a backup wrench.
d. Loosen nuts to remove leak-off lines and T-fi ttings
and disconnect fuel injection line from nozzle.
NOTE: When all fuel injection nozzles have to be
removed, disconnect leak-off line assembly at fuel
tank, at injection pump, and at each nozzle T-fi tting.
Lift off complete leak-off line as an assembly.
e. Remove cap screw, clamp and spacer.
f. Pull injection nozzle out of cylinder head with
JDE38A Injection Nozzle Puller.
NOTE: Do not use screwdrivers, pry bars, or similar
tools for this as they might damage the injection nozzle.
3. Clean Injector Bore:
Always turn the tool clockwise through the bore
even when removing from bore, otherwise tool
may become dull.
a. Clean nozzle bore with JDE39 Nozzle Bore
Cleaning Tool. Blow debris from bore with
compressed air and plug the bore to prevent entry
of foreign material.
4. Clean injection nozzles:
a. Remove carbon stop seal
(Figure 18-A)
and upper
sealing washer
(Figure 18-B)
, using a needle-nose
pliers. Discard seals.
b. Clean exterior of nozzle by soaking in clean
solvent or diesel fuel. Clean tip with brass wire
brush.
Reprinted by permission of Deere & Company, 2005. All rights reserved.
RG6300
Figure 18