Northern Lights and NL1066H3 Operator's Manual - page 29
ONL2-2 7/13
27
Servicing
Figure 26
Reproduced by permission of Deere & Company, c.2005. Deere & Company, All rights reserved.
RG5664
Figure 27
Reproduced by permission of Deere & Company, c.2005. Deere & Company, All rights reserved.
RG9089
12. Tighten fuel delivery (pressure) lines to 20 foot lbs.
(27 N•m), using a suitable 17 mm deep-well
crowsfoot
socket.
IMPORTANT: Always use a backup wrench when
loosening or tightening fuel delivery lines at fuel
injection pump, so that the pump discharge fi ttings
are not altered. This prevents possible internal pump
damage.
13. Connect fuel supply line
(Figure 26-C)
and fuel return
line
(Figure 26-D)
.
14. Connect fuel shutoff cable and speed control linkage,
if equipped. Install and securely tighten electrical
connections to shutoff solenoid and throttle position-
ing solenoid, if equipped. Connect cold start switch,
if equipped.
15. Bleed air from fuel system as outlined on pages 17-
18. Start engine and run for several minutes. Check
the entire system for leaks.
SP13. TURBOCHARGER
1. Check for air leaks every 200 (100 for electronically
controlled fuel system engines) hours. Air leakage
will lower engine output and may cause black
exhaust smoke and soot.
2. Listen along air line while engine is running.
A whistling or hissing sound indicates leakage.
3. Leakage on the pressure side, between turbo and
engine, can be found by applying soapy water to the
air line.
4. Tighten the hose clamps, replace hose or gaskets as
required.
5. Check to see that the lubrication and cooling lines
are tight and without leaks.
SP14. TURBO BOOST
1. This check measures the amount of air the turbo
is pushing into the engine. It should be done by an
authorized dealer every 500 hours.
2. On the inlet manifold there is a 1/8" NPT threaded
port. Remove the plug and install the boost gauge
hose. Refer to your engine specifi cations for correct
pressure.
COOLING REQUIREMENTS
1. To meet cooling system protection requirements, the
coolant solution must consist of:
a. Quality water
b. Ethylene glycol concentrate (EGC ) commonly
known as antifreeze.
c. Supplemental coolant additives (SCA's).
2. A coolant solution of ethylene glycol concentrate
(EGC-antifreeze), quality water and supplemental
coolant additives (SCA's) MUST be used YEAR
ROUND to protect against freezing, boil-over, liner
erosion or pitting and to provide a stable,
noncorrosive environment for cooling system
components.
3. Ethylene glycol coolant concentrate (antifreeze)
normally DOES NOT contain the SCA chemical
inhibitors needed to control liner pitting or
erosion, rust, scale, and acidity.
LINER EROSION (PITTING)
1. Cylinder liner walls
(Figure 28-A)
which are in contact
with engine coolant
(Figure 28-B)
can be eroded or
pitted unless the proper concentration and type of
SCA's are present in the coolant. Water pump
impellers are also susceptible to pitting.