AP0902
4-3
Troubleshooting
4.1.1
Possible causes for malfunctions
1
Dead battery
2
Electrical connections are not in order
3
Defective starter
4
Wrong oil grade
5
Starter turns too slowly
6
Fuel tank empty
7
Defective shutoff unit
8
Fuel lines clogged
9
Defective fuel pump
10 Fuel filter fouled
11 Intake system constricted/air filter
fouled
12 Air in fuel system
13 Injection nozzles damaged or wrong
injection nozzles
14 Incorrect operation of cold starting sys-
tem
15 Defective cold starting system
16 Bad fuel tank ventilation
17 Wrong fuel grade
18 Limited action of controls for speed
regulation
19 Defective/clogged exhaust system
20 Engine temperature too high
21 Engine temperature too low
22 Wrong setting of valve clearance
23 Oil bath air cleaner (if installed) filled
with too much oil or oil with wrong
grade
24 Engine oil level too low
25 Defective oil pressure sensor
26 Oil filter fouled
27 Defective breather
28 Defective engine suspension or fly-
wheel housing
29 Engine oil level too high
30 Limited circulation of air or coolant
through radiator
31 Breather line constricted
32 Coolant level too low
33 Vacuum line leaks or defective vacuum
pump
34 Defective fuel injection pump
35 Defective drive of fuel injection pump
36 Incorrect start of delivery of fuel injec-
tion pump
37 Incorrect valve timing
38 Compression too low
39 Cylinder-head gasket leaks
40 Blocked valves
41 Wrong injection lines
42 Cylinder bores worn
43 Valve seats leak
44 Piston ring blocked, worn or broken
45 Valve stems and/or guides worn
46 Crankshaft bearing worn or damaged
47 Oil pump worn
48 Pressure relief valve does not close
49 Pressure relief valve does not open
50 Spring in pressure relief valve broken
51 Defective oil suction pipe of oil pump
52 Damaged piston(s)
53 Incorrect projection of piston(s)
54 Flywheel housing or flywheel not cor-
rectly aligned
55 Defective thermostat or wrong thermo-
stat
56 Coolant channels constricted
57 Defective coolant pump
58 Damaged valve stem sealing
59 Oil screen fouled
60 Valve spring broken
61 Not assigned
62 Not assigned
63 Intake system leaks
64 Not assigned
65 Drive belt for coolant pump is loose
Summary of Contents for 418T Wheel
Page 1: ...OPERATOR S MANUAL Form No 418T Wheel Loader 909879...
Page 10: ...Section 1 Introduction 1...
Page 11: ......
Page 22: ...Section 2 Safety instructions 2...
Page 23: ......
Page 36: ...Section 3 Operation...
Page 37: ......
Page 40: ...AP0902 3 3 Overview see overleaf Overview see overleaf...
Page 106: ...Section 4 Troubleshooting...
Page 107: ......
Page 111: ...4 4 AP0902 Troubleshooting Notes...
Page 112: ...Section 5 Maintenance 5...
Page 113: ......
Page 154: ...Section 6 Helpful information for using the service parts list...
Page 155: ......
Page 164: ...Section 7 Specifications 7...
Page 165: ......
Page 177: ...7 12 AP0902 Specifications Notes...
Page 178: ...Annex...
Page 179: ......
Page 189: ...Annex A 10 AP0902 Notes...
Page 190: ......