約翰迪爾John Deere發(fā)動(dòng)機(jī)冒過(guò)量的黑色或灰色煙的故障原因分析診斷與處理方法強(qiáng)鹿配件
1 E5 - Preliminary Check |
Before using this diagnostic procedure:
1. Ensure fuel quantity and quality are OK.
2. Ensure engine is not excessively loaded.
3. Ensure air filter is not restricted or plugged. |
Problem not found: GO TO 2
Problem found: Repair and retest.
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2 Intake and Exhaust Restriction and Air Leak Test |
Check for intake and exhaust restrictions and air leaks. See all of the following:
· CHECK FOR INTAKE AND EXHAUST RESTRICTIONS (CTM100, Section 04, Group 150) · CHECK FOR INTAKE AIR LEAKS (CTM100, Section 04, Group 150)
· CHECK FOR EXHAUST AIR LEAKS (CTM100, Section 04, Group 150) |
No restrictions or leaks found: GO TO 3
Restrictions or leaks found: Repair or replace components as necessary.
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3 Turbocharger Failure |
Check for turbocharger failure. See TURBOCHARGER SEVEN-STEP INSPECTION in Section 02, Group 080 of CTM100. |
No turbocharger failure found: GO TO 4
Turbocharger failure found: Follow appropriate repair procedure found in the above inspection in Section 02, Group 080 of CTM100.
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4 |
Valve Lash Test |
Check valve lash. See CHECK AND INJECTOR PRELOAD in |
AND ADJUST VALVE Section 02, Group 020 |
ASSEMBLY of CTM100. |
CLEARANCES |
Valve lash on all valves within specification: GO TO 5
Valve lash on one or more valves out of specification: Adjust valve lash and retest.
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5 Cam to Crank Timing Test |
Verify cam/crank timing is correct. See CHECK AND ADJUST CAMSHAFT-TO-CRANKSHAFT TIMING in CTM100, Section 02, Group 050. |
Camshaft to crankshaft timing OK: Ensure there are no engine mechanical problems. If no other problems are found, see E3 - ENGINE DOES NOT DEVELOP FULL POWER in this Group.
Camshaft to crankshaft timing not OK: Adjust cam/crank timing. See CHECK AND ADJUST CAMSHAFT-TO-CRANKS TIMING in Section 02, Group 050 of CTM100, and retest.
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