MAINTENANCE
3-21
235 MM331 (3--93)
DIESEL FUEL TROUBLESHOOTING
Problem
Cause
Remedy
Engine will not start
Out of fuel
Fill fuel tank
Engine will not start
Filter plugged
Clean filter
Air in fuel
Bleed fuel lines
Water in fuel
Drain water trap
Fuel too thick
Change fuel grade
Battery discharged
Charge or replace battery
Clogged fuel nozzle
Clean or replace nozzle
Valve clearance wrong
Adjust valves
Leaking valves
Grind valves
Timing wrong
Adjust timing
Low compression
Repair engine
Engine runs unevenly or lacks
power
Dirty air filter
Clean or replace filter
Engine runs unevenly or lacks
power
Plugged fuel filter
Clean filter
Water in fuel
Drain water trap
Fuel too thick
Change fuel grade
Clogged fuel nozzle
Clean or replace nozzle
Low compression
Repair engine
Engine overheating
Check radiator
Engine overheating
Check lubricating system
Timing wrong
Check timing
Valve clearance wrong
Adjust valves
Fuel pressure wrong
Adjust pressure
Injection pump worn
Repair or replace pump
Engine stops suddenly
Fuel leak
Check fuel system
Engine stops suddenly
Out of fuel
Fill fuel tank
Fuel nozzle bad
Replace nozzle
Engine overheating
Check radiator
Engine overheating
Check lubricating system
Timing wrong
Check timing
Exhaust color bad
Fuel governor failure
Repair or replace
Exhaust color bad
Bad fuel
Change fuel grade
Fuel nozzle bad
Replace nozzle
Timing wrong
Check timing
Low compression
Repair engine
Valve clearance wrong
Adjust valves
Injection pump worn
Repair or replace pump
Summary of Contents for 235D
Page 1: ...235D MM331 ...
Page 6: ...ABOUT THIS MANUAL 235 MM331 3 93 d ...
Page 14: ...SPECIFICATIONS 235 MM331 3 93 1 2 ...
Page 18: ...SPECIFICATIONS 235 MM331 3 93 1 6 ...
Page 20: ...OPERATION 235 MM331 3 93 2 2 ...
Page 36: ...OPERATION 235 MM331 3 93 2 18 ...
Page 38: ...MAINTENANCE 235 MM331 3 93 3 2 ...
Page 49: ...MAINTENANCE 3 13 235 MM331 3 94 03460 HYDRAULIC SCHEMATIC ...
Page 60: ...MAINTENANCE 235 MM331 3 94 3 24 03490 ELECTRICAL SCHEMATIC ...
Page 61: ...MAINTENANCE 3 25 235 MM331 3 94 03490 ELECTRICAL SCHEMATIC AUXILIARY SIDE BRUSH ...
Page 78: ...MAINTENANCE 235 MM331 3 94 3 42 ...
Page 80: ...APPENDIX 235 MM331 3 93 4 2 ...
Page 84: ...STANDARD MODEL PARTS 235 MM331 3 93 5 2 ...
Page 134: ...STANDARD MODEL PARTS 235 MM331 3 94 5 52 4 2 3 1 Fig 29 Wire Harness Group ...
Page 138: ...OPTIONS 235 MM331 3 93 6 2 ...
Page 152: ...HYDRAULIC COMPONENTS 235 MM331 3 93 7 2 ...
Page 164: ...ENGINE PARTS DIESEL 235 MM331 3 93 8 2 ...