OPERATION
TROUBLESHOOTING
PW160-7H VEAM390100
217
ENGINE
●
Always contact your Komatsu distributor when dealing with
these items.
●
In cases of abnormalities or causes which are not listed
below, please contact your Komatsu distributor for repairs.
Problem
Main causes
Remedy
Engine oil pressure monitor lights
up
●
Engine oil pan oil level is low
(sucking in air)
●
Clogged oil filter cartridge
●
Defective tightening of oil pipe,
pipe joint, oil leakage from dam-
aged point
●
Defective engine oil pressure
sensor
●
Defective monitor
•
Add oil to specified level, see
CHECK BEFORE STARTING
•
Replace cartridge, see EVERY
500 HOURS SERVICE
(
•
Check, repair)
(
•
Replace sensor)
(
•
Replace)
Steam spurts out from top of radia-
tor (pressure valve)
●
Cooling water level low, leakage
of water
●
Loose fan belt
●
Dirt or scale accumulated in
cooling system
•
Check, add water, repair, see
CHECK BEFORE STARTING
•
Check fan belt tension, adjust,
replace
•
Change coolant, flush inside of
cooling system, see WHEN
REQUIRED
Radiator water level monitor lights
up
●
Clogged radiator fins or dam-
aged fins
●
Defective thermostat
●
Loose radiator filler cap (high-
altitude operations)
●
Defective water level sensor
●
Defective monitor
•
Clean or repair, see EVERY 500
HOURS SERVICE
(
•
Replace thermostat)
•
Tighten cap or replace packing
(
•
Replace sensor)
(
•
Replace sensor)
Engine does not start when starting
motor is turned
●
Lack of fuel
●
Air in fuel system
●
Defective fuel injection pump or
defective nozzle
●
Starting motor cranks engine
sluggishly
●
Preheating monitor does not
light up
●
Defective compression
●
Defective valve clearance
•
Add fuel, see CHECK BEFORE
STARTING
•
Repair place where air is sucked
in, see EVERY 500 HOURS SER-
VICE
(
•
Replace pump or nozzle)
•
See ELECTRICAL SYSTEM
•
See ELECTRICAL SYSTEM
(
•
Adjust valve clearance)
Exhaust gas is white or blue
●
Too much oil in oil pan
●
Improper fuel
•
Set oil to specified level, see
CHECK BEFORE STARTING
•
Change to specified fuel
Summary of Contents for PW160-7H
Page 2: ......
Page 3: ...PW160 7H VEAM390100 3 FOREWORD ...
Page 12: ...LOCATIONS OF PLATES TABLE TO ENTER SERIAL NO AND DISTRIBUTOR FOREWORD 12 PW160 7H VEAM390100 ...
Page 18: ...18 PW160 7H VEAM390100 ...
Page 220: ...TROUBLESHOOTING OPERATION 220 PW160 7H VEAM390100 ...
Page 305: ...PW160 7H VEAM390100 305 SPECIFICATIONS ...
Page 307: ...SPECIFICATIONS SPECIFICATIONS PW160 7H VEAM390100 307 1 PIECE BOOM ...
Page 308: ...SPECIFICATIONS SPECIFICATIONS 308 PW160 7H VEAM390100 2 PIECE BOOM ...
Page 345: ......