187
Engine does not start with starter run-
ning.
• No fuel.
• Air in fuel system.
• Water in fuel system.
• Pump or fuel injection nozzle faulty.
• Starter makes engine run slowly.
• Preheating warning light does not
come on.
• Faulty compression.
• Excessive valve clearance.
• Restore level. See"CHECKS TO BE
CARRIED OUT BEFORE STARTING
THE ENGINE".
• Repair point where air is sucked in.
See "EVERY 500 HOURS OF OP-
ERATION".
• Drain water from fuel system. See
"WHEN REQUIRED" and "CHECKS
TO BE CARRIED OUT BEFORE
STARTING THE EINGINE".
(•) Change pump or nozzle.
• See "ELECTRICAL SYSTEM".
• See "ELECTRICAL SYSTEM".
(•) Adjust valve clearance.
Exhaust gases white or light blue.
• Too much oil in oil pan.
• Unsuitable fuel.
• Restore level. See "CHECKS TO BE
CARRIED OUT BEFORE START-
ING THE ENGINE".
• Change with fuel in compliance with
standards.
Exhaust gases occasionally tend to be
black.
• Air filter clogged.
• Faulty nozzle.
• Faulty compression.
• Clean or repair. See "WHEN RE-
QUIRED"
(•) Change.
(•) See above: faulty compression.
Combustion noise occasionally re-
sembles a blow.
• Faulty nozzle.
(•) Change.
Abnormal noises (during combustion
or in mechanical parts).
• Fuel with low cetane rating.
• Overheating.
• Inside of exhaust silencer damaged.
• Excessive valve clearance.
• Change with fuel in compliance with
standards.
• See above:
Engine
coolant
temperature
indicator reaches red overheating
range.
• Change.
(•) Adjust valve clearance.
TROUBLE
CAUSE
SOLUTION
WEAM012405
Summary of Contents for PC16R-3
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Page 25: ...SAFETY AND ACCIDENT PREVENTION 23 WEAM012405...
Page 79: ...THE MACHINE AND ITS OPERATIONS 77 WEAM012405...
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Page 191: ...MAINTENANCE 189 WEAM012405...
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Page 245: ...TECHNICAL SPECIFICATIONS 243 WEAM012405...
Page 253: ...AUTHORISED OPTIONAL EQUIPMENT 251 WEAM012405...
Page 286: ...284 WEAM012405...
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Page 288: ...2017 KOMATSU ITALIA MANUFACTURING S p A All Rights Reserved Printed in Europe 02 2017...