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Mechanical Diagnosis
148
Engine stops after starting
Air in injection pump
Bleed fuel system
Fuel filter obstructed
Replace filter element
High water temperature coolant
Add coolant. Check for leaks
Low oil pressure
Add oil. Check for leaks
Vent of fuel tank obstructed
Remove obstruction
Electric fuel pump not operating
Check pump for running and 8 to
10 psig (55 to 69 kPa). Repair or
replace fuel pump
Dry air cleaner plugged
Change filter element
Fuel solenoid not energized
Check run circuit
High refrigerant pressure
Locate and correct cause
Engine does not reach full power
Air or dirt in fuel system
Adjust
Fuel line leaks
Tighten connections of fuel lines. If
necessary, replace damaged lines
Speed adjustment wrong
Adjust speed
Electric fuel pump does not run
Check voltage. Repair or replace
pump
Fuel filter blocked
Install new filter
Electric fuel pump filter dirty
Clean and replace diesel filter
Delivery of fuel pump insufficient
Repair or replace pump
Cylinder head gasket leaking
Replace gasket
Piston rings worn, stuck or broken
Replace rings
Cylinder worn
Replace or bore
Leaking injection nozzle or irregular
injection caused by fouling
Clean and repair nozzle
Insufficient compression pressure
due to faulty piston or valves
Check cylinder with compression
tester. If necessary, grind valves or
replace piston
Air filter clogged
Clean air filter
Fuel tank vent clogged
Unclog vent
Injection rate too low
Adjust pump discharge rate
Insufficient injection pressure
Readjust or replace nozzle
Pump injects too early or too late
Adjust injection pump timing
Air in fuel system
Bleed fuel system
Air is drawn into fuel pump
Check all fuel lines and fittings
Loose governor assembly
Check and repair governor
assembly
Restricted exhaust system
Clean or replace restricted parts
Condition
Possible Cause
Remedy
Summary of Contents for 914970
Page 3: ...3...
Page 10: ...Table of Contents 10...
Page 40: ...Operating Instructions 40...
Page 82: ...Electronic Controls 82...
Page 92: ...Electrical Maintenance 92...
Page 124: ...Refrigeration Maintenance 124...
Page 140: ...Hilliard Clutch Maintenance 140...
Page 160: ...Refrigeration Diagrams 160...
Page 163: ...Index 163 W wiring 85 wiring diagrams 165...
Page 164: ...Index 164...
Page 166: ...Wiring and Schematic Diagrams Index 166...
Page 167: ...167 Cab Control RD Wiring Diagram...
Page 168: ...168 RD w o Thermostat Cab Control Schematic...
Page 169: ...169 RD Cab Box Wiring Diagram...
Page 170: ...170 RD Cab Control w Thermostat Schematic Diagram...
Page 171: ...171 RD 50 STD 3 Phase Wiring Diagram Page 1 of 2...
Page 172: ...172 RD 50 STD 3 Phase Wiring Diagram Page 2 of 2...
Page 173: ...173 RD 50 STD 3 Phase Schematic Diagram Page 1 of 2...
Page 174: ...174 RD 50 STD 3 Phase Schematic Diagram Page 2 of 2...
Page 175: ...175 RD 30 STD Wiring Diagram Page 1 of 2...
Page 176: ...176 RD 30 STD Wiring Diagram Page 2 of 2...
Page 177: ...177 RD 30 STD Schematic Diagram Page 1 of 2...
Page 178: ...178 RD 30 STD Schematic Diagram Page 2 of 2...
Page 179: ...179 RD 30 C S Wiring Diagram Page 1 of 2...
Page 180: ...180 RD 30 C S Wiring Diagram Page 2 of 2...
Page 181: ...181 RD w CYCLE SENTRY Schematic Diagram Page 1 of 2...
Page 182: ...182 RD w CYCLE SENTRY Schematic Diagram Page 2 of 2...
Page 183: ...183 RD 50 C S 3 Phase Wiring Diagram Page 1 of 2...
Page 184: ...184 RD 50 C S 3 Phase Wiring Diagram Page 2 of 2...
Page 185: ...185 RD w CYCLE SENTRY Schematic Diagram Page 1 of 2...
Page 186: ...186 RD w CYCLE SENTRY Schematic Diagram Page 2 of 2...