107
Mechanical Diagnosis
Condition
Possible Cause
Remedy
Engine will not crank
Electrical problem
Check and repair electrical system
Defective starter solenoid
Replace solenoid
Defective starter
Repair starter
Water in cylinders
Check for hydrostatic lock. Remove
injectors and turn engine slowly
Starter motor turns but engine
does not crank
Starter clutch defective
Replace
Engine cranks but fails to start
Fuel solenoid not energized
Check 8D and 8DP circuits and fuel
solenoid relay. Check that YAN =
YES in Super Guarded Access.
Refer to appropriate Microprocessor
Diagnostic Manual.
Fuel solenoid defective or stuck
Replace
Fuel injection pump defective
Replace pump
Air heater defective
Replace
No fuel or wrong fuel
Fill with proper fuel
Fuel pump defective
Replace pump
Air in fuel system
Bleed air
Compression low
Overhaul engine
Injection nozzles defective
Replace nozzles
Incorrect timing
Adjust timing
Air cleaner clogged
Replace air filter
Exhaust plugged
Clean exhaust
Defective HPCO
Replace HPCO
Engine stops after starting
Air in injection pump
Bleed fuel system
Fuel filter obstructed
Replace filter element
High head pressure
Eliminate cause of high head
pressure
Vent of fuel tank obstructed
Unclog vent
Clogged fuel tank or fuel lines
Clean fuel tank and fuel lines
Engine does not develop full
power
Air intake system clogged
Clean air intake system
Fuel tank vent clogged
Unclog vent
Clogged fuel tank or fuel lines
Clean fuel tank and fuel lines
Speed adjustment wrong
Adjust speed
Insufficient fuel volume leaving filter
Check for dirty filter or air in system
Air cleaner clogged
Replace air filter
Delivery of fuel pump insufficient
Repair pump
Injection pump timing off
Adjusting timing
Injection nozzles defective
Repair or replace nozzles
Compression low or unbalanced
Overhaul engine
Worn injection pump plungers,
delivery valve defective, injection
rate too low, gum formations
Repair or replace pump
Summary of Contents for Spectrum DE 30-2
Page 4: ...4...
Page 12: ...Safety Precautions 12...
Page 16: ...Specifications 16...
Page 31: ...Unit Description 31 1 Access Panels 2 Defrost Dampers Figure 12 Back View of Unit 1 2 AGA215...
Page 42: ...Operating Instructions 42...
Page 48: ...Electrical Maintenance 48...
Page 106: ...Structural Maintenance 106...
Page 110: ...Mechanical Diagnosis 110...
Page 114: ...Remote Evaporator Specifications 114...
Page 116: ...Remote Evaporator Maintenance Inspection Schedule 116...
Page 122: ...Remote Evaporator Electrical Maintenance 122...
Page 126: ...Remote Evaporator Refrigeration Service Operations 126...
Page 128: ...Remote Evaporator Structural Maintenance 128...
Page 130: ...Remote Evaporator System Diagnosis 130...
Page 134: ...Wiring and Schematic Diagrams Index 134...
Page 135: ...135 Schematic Diagram Page 1 of 2...
Page 136: ...136 Schematic Diagram Page 2 of 2...
Page 137: ...137 Wiring Diagram Page 1 of 4...
Page 138: ...138 Wiring Diagram Page 2 of 4...
Page 139: ...139 Wiring Diagram Page 3 of 4...
Page 140: ...140 Wiring Diagram Page 4 of 4...