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Engine oil will be hot. Use protective
gloves to prevent burns. Engine oil con-
tains chemicals which may be harmful to
your health. Avoid skin contact.
3. Remove drain plug and allow the oil to drain.
4. Remove and discard oil
fi
lter and its sealing
ring.
5.
Coat sealing ring on the new
fi
lter with clean
engine oil, wipe the sealing surface on the
fi
lter
mounting surface to remove any dust, dirt or
debris. Tighten
fi
lter securely (follow
fi
lter man-
ufacturer’s instructions). Do not over
tighten.
6. Check sealing ring on drain plug for any dam-
age, replace if necessary, wipe plug with clean
rag, wipe pan sealing surface with clean rag
and re-install plug into the pan. Tighten to the
OEM speci
fi
cation.
7. Fill crankcase with oil.
8. Start engine and check for oil leaks.
9. Dispose of oil and
fi
lter in a safe and respon-
sible manner.
FUEL SYSTEM INSPECTION AND
MAINTENANCE
LPG FUEL SYSTEM
The LPG fuel system installed on this industrial
engine has been designed to meet the emission
standard applicable for the 2011 model year. To
ensure compliance to these standards, follow the
recommended maintenance schedule contained in
this section.
INSPECTION AND MAINTENANCE OF THE
FUEL STORAGE CYLINDER
The fuel storage cylinder should be inspected
daily or at the beginning of each operational shift
for any leaks, external damage, adequate fuel
supply and to ensure the manual service valve is
open. Fuel storage cylinders should always be
securely mounted, inspect the securing straps or
retaining devices for damage ensure that all lock-
ing devices are closed and locked. Check to
ensure that the fuel storage cylinder is positioned
with the locating pin in the tank collar on all hori-
zontally mounted cylinders this will ensure the
proper function of the cylinder relief valve.
When refueling or exchanging the fuel cylinder,
check the quick
fi
ll valve for thread damage. Also
verify O-ring is in place and inspect for cracks,
chunking or separation. If damage to the o-ring
is found, replace prior to
fi
lling. Check the ser-
vice line quick coupler for any thread damage.
IMPORTANT:
When refueling the fuel cylinder, wipe both the
female and male connection with a clean rag prior
to
fi
lling to prevent dust, dirt and debris from being
introduced to the fuel cylinder.
INSPECTION OF THE FUEL FILTER
The LPG system on this emission certi
fi
ed engine
utilizes an in-line replaceable fuel
fi
lter element.
This element should be replaced, at the intervals
speci
fi
ed in the recommended maintenance sche-
dule. When inspecting the fuel
fi
lter check the
following:
Check for leaks at the inlet and outlet
fi
ttings,
using a soapy solution or an electronic leak
detector and repair if necessary.
Check to make sure
fi
lter is securely mounted.
Check
fi
lter housing for external damage or
distortion. If damaged replace fuel
fi
lter.
AIR FUEL MIXER/THROTTLE CONTROL
DEVICE MAINTENANCE AND INSPECTION
IMPORTANT:
The Air Fuel Mixer components have been
speci
fi
cally designed and calibrated to meet the
fuel system requirements of the emission certi
fi
ed
engine. The mixer should not be disassembled or
rebuilt. If the mixer fails to operate or develops a
leak the mixer should be replaced with the OEM
recommended replacement parts.
When inspecting the mixer check for the following
items:
Leaks at the inlet
fi
tting.
Fuel inlet hose for cracking, splitting or chaff-
ing, replace if any of these condition exist.
Ensure the mixer is securely mounted.
Inspect air inlet hose connection and clamp.
Also inspect inlet hose for cracking, splitting or
chafing. Replace if any of these conditions ex-
ist.
Содержание 3.0L GM
Страница 4: ...4 ...
Страница 5: ...5 General Information ...
Страница 9: ...9 Maintenance ...
Страница 16: ...16 ...
Страница 17: ...17 LPG Fuel System ...
Страница 18: ...18 LPG FUEL SYSTEM OPERATION ...
Страница 25: ...25 LPG Closed Loop Schematic ...
Страница 26: ...26 ...
Страница 27: ...27 LPG System Diagnosis ...
Страница 35: ...35 Fuel Symptom Diagnostics ...
Страница 51: ...51 Electrical Section ...
Страница 52: ...52 ...
Страница 53: ...53 DST Diagnostic Scan Tool ...
Страница 59: ...59 Select the USB button then click the OK box Click on the Search attached device box ...
Страница 67: ...67 When connected the live data stream appears in the Value column ...
Страница 78: ...78 ...
Страница 80: ...80 ...
Страница 81: ...81 Engine Wire Schematic ...
Страница 82: ...82 2011 3 0L GM Engine IMPCO Emission Certified LPG Fuel System ...
Страница 83: ...83 ...
Страница 84: ...84 ...
Страница 85: ...85 Engine Wire Harness Repair ...
Страница 89: ...89 Diagnostic Trouble Codes DTCs ...
Страница 93: ...93 ...
Страница 101: ...101 ...
Страница 105: ...105 ...
Страница 109: ...109 ...
Страница 119: ...119 ...
Страница 129: ...129 ...
Страница 133: ...133 ...
Страница 137: ...137 ...
Страница 141: ...141 ...
Страница 145: ...145 ...
Страница 161: ...161 ...
Страница 165: ...165 ...
Страница 169: ...169 ...
Страница 173: ...173 ...
Страница 201: ...201 ...
Страница 209: ...209 ...
Страница 213: ...213 ...
Страница 217: ...217 ...
Страница 221: ...221 ...
Страница 225: ...225 ...
Страница 229: ...229 ...
Страница 237: ...237 Servicing the Fuel System ...
Страница 254: ...254 ...
Страница 255: ...255 LPG Parts Diagram ...
Страница 256: ...256 THROTTLE BODY ASSEMBLY ...
Страница 258: ...258 FUEL RAIL INJECTORS ...
Страница 260: ...260 REGULATOR ASSEMBLY ...
Страница 262: ...262 HOSE ASSEMBLIES COOLANT VACUUM FUEL ...
Страница 264: ...264 THERMOSTAT HOUSING ...
Страница 266: ...266 ENGINE CONTROL MODULE ...
Страница 267: ...267 ENGINE CONTROL MODULE Item Description Qty IMPCO Part Number 1 ECM Liugong 1 A11 173 ...
Страница 268: ...268 SENSORS 4 1 3 6 5 2 7 ...
Страница 270: ...270 DISTRIBUTOR ...
Страница 272: ...272 FUSE BOX BRACKET ...
Страница 274: ...274 IGNITION COIL ...
Страница 275: ...275 IGNITION COIL Item Description Qty Part Number 1 Coil Ignition 1 7245530 ...
Страница 276: ...276 MANIFOLDS ...
Страница 278: ...278 WIRE HARNESS FUSES FUSE BOX COVER Fuse Box Layout 4 ...
Страница 280: ...280 PCV VENT VALVE ...
Страница 282: ...282 MISCELLANEOUS ENGINE ...
Страница 284: ...284 ALTERNATOR ...
Страница 286: ...286 STARTER ...
Страница 291: ...291 ...
Страница 292: ...292 3 0L UPPER ...
Страница 294: ...294 3 0L LOWER ...
Страница 298: ...298 ...
Страница 299: ...299 Labor Time Guide ...
Страница 317: ...317 Definitions ...
Страница 322: ...322 ...
Страница 323: ...323 Appendix ...
Страница 327: ...327 DTC SPN FMI Chart ...