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147
Mechanical Diagnosis
Condition
Possible Cause
Remedy
Unit switch On—nothing happens Dead battery
Recharge or replace battery
Remote switch Off (optional)
Turn On
Fuse open
Replace
Corroded battery connections
Clean and tighten
Main harness fuse blown
Check for shorted main harness and
replace fuse
Unit switch On—indicator lights
come On but engine does not
crank
Battery low
Replace or recharge battery
Fuse blown
Replace
Starter solenoid defective
Repair or replace
Starter relay defective
Replace relay
Corroded battery connections
Clean and tighten
Starter clutch defective
Replace
Starter defective
Repair or replace
Engine cranks but fails to start
Misadjusted fuel solenoid linkage
Adjust
Fuel solenoid defective
Replace solenoid
No fuel or wrong fuel in tank
Fill fuel tank. After filling a
completely empty tank, first bleed
fuel system.
Engine too cold
Use winter preheat procedure
Glow plugs defective
Replace glow plugs
Air in fuel system
Bleed fuel system. During this
operation, it can also be determined
if the fuel lines are tight and filters
clean.
Speed/run relay malfunction
Check relay or unit thermostat
Insufficient compression
Measure compression pressure. If
necessary, grind valves or replace
piston
Electric fuel pump not operating
Check pump for running and 8 to
10 psig (55 to 69 kPa). Repair or
replace fuel pump
Injection pump incorrectly timed
Adjust timing
Faulty injection nozzle(s)
Repair injection nozzle or replace it
Faulty injection pump
Have pump repaired
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...