Yanmar 3TNV82A Troubleshooting Manual page 226

FAILURE DIAGNOSTIC LIST
Defective start
Symptoms and conditions of failures
Starter not Starter
rotate rotates
Cause
Floor contamination
Operation defect of waste gate
Wear of radial metal
Radiator super cooled
Insufficient radiator cooling
Insufficient cooling water quantity
Water jacket cracks
Fan belt elongation
Thermostat fault
Incorrect lubricant
Lubricant system leakage
Insufficient discharge rate of trochoid
pump
Lubricant filter clogged
Regulator valve fault
Insufficient lubricant quantity
Excess filling into crankcase
1-224
Engine stall Insufficient
Defective rotation control Noise/vibration
after start engine output
Exhaust
Without load At work Exhaust color
fume
Cooling
Lubricant Intake Exhaust Fuel
water
At work
Failure Diagnostic List
Electrics/electronics
Action
Floor cleaning See"Washing Procedure" (on page 10-
12).
Disassembling and inspection See "Waste Gate Valve Test" (on page
10-14).
Disassembling and inspection See "Radial Bearing" (on page 10-11).
Thermostat replacement See "Disassembly of Engine Coolant
Pump" (on page 8-10).
Thermostat replacement See "Disassembly of Engine Coolant
or check for fan belt loose Pump" (on page 8-10) or "Check and
Adjust Cooling Fan V-Belt" (on page 5-
22).
Water leak inspection of cooling water See "Engine Coolant System Check" (on
system page 8-8).
Repair or replacement See "Disassembly of Engine Coolant
Pump" (on page 8-10).
Adjustment of belt tension See "Check and Adjust Cooling Fan V-
Belt" (on page 5-22).
Inspection or replacement See "Disassembly of Engine Coolant
Pump" (on page 8-10).
Usage of correct lubricant See "Engine Oil Specifications" (on page
4-15).
Repair See "Disassembly of Oil Pump" (on page
9-10).
Inspection and repair See "Disassembly of Oil Pump" (on page
9-10).
Cleaning or replacement See "Replace Engine Oil and Engine Oil
Filter" (on page 5-20).
Cleaning, adjustment or replacement See "Disassembly of Oil Pump" (on page
9-10).
Replenishment of correct lubricant See "Adding Engine Oil" (on page 4-17).
Engine oil check See "Adding Engine Oil" (on page 4-17).
TNV DI Service Manual
Referenced page number