Mechanical Diagnosis
134
White Smoke (fuel is not
burning)
Cold engine
Allow engine to warm up
Air or water in fuel
Bleed system. Replace filters, clean fuel
system, drain and clean tank and check
supply tank for water. Use known good
fuel
Insufficient preheat
Check air heater
Low compression
Check and eliminate possible causes.
Repair as necessary
Timing incorrect
Readjust timing
Injection pump defective
Replace or repair pump
Blue Smoke (oil
consumption)
Excessive oil consumption
Refer to High Oil Consumption. Repair
as necessary
Black Smoke
(excessive fuel to air ratio)
• Engine is sooting heavily,
emits thick black clouds of
smoke
Cold engine
Allow engine to warm up
Wrong fuel
Drain and refill with correct fuel
Clogged air intake system
Clean or replace air cleaner
Restricted exhaust system
Clean or replace
Oil being drawn in
Check oil level in oil bath air filter
Excessive load
Check drive system and engine oil
pressure
Injection pump not timed
Check timing of injection pump
Opening pressure of nozzle is too low or
needle sticks
Repair nozzle. Replace if necessary
Injection amount too great
Have pump repaired
Poor compression
Check and eliminate possible causes.
Repair as necessary
Diagnosing Unit Conditions
Condition
Possible Cause
Remedy
Summary of Contents for SGCO 3000
Page 4: ......
Page 12: ...SGCO 3000 Genset Addendum 12...
Page 14: ...Genset Model Features 14...
Page 22: ...Service Guide 22...
Page 32: ...Unit Description Features Options 32...
Page 78: ...Operating Instructions 78...
Page 86: ...Electrical Maintenance 86...
Page 114: ...Engine Maintenance 114...
Page 124: ...Alternator Operation and Diagnosis 124...
Page 130: ...Structural Accessory Maintenance 130...
Page 138: ...Index 138...
Page 140: ...Electrical and SG Menu Flow Diagrams 140...
Page 141: ...141 SGCO 3000 Wiring Diagram Page 1 of 1...