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42hW-201601
CHAPTER 2 ENGINE3015R(h)/3515R(h)/4015R(h)/F36R(h)/F42R(h) TRACTOR
2
TROUBLE CAUSE REPAIRING
Fuel consumption excessive
1) Fuel leak
Check and if necessary,
replace the all pipe and re-
tighten connection area.
2) Clogging the return pipe or hose
- Twisting, crushing of the
return line is checked.
Defective parts are replaced.
- If lines were clogged,
executes the air bleeding after
boring the compressed air.
3) Inappropriate injection timing. Correction
4) Check the compression pressure. Correction or replace
5) Injection valve failure (spray, pressure, etc) Correction or replace
6) Injection pump failure
(excessive injection quantity)
Correction or replace
7) Check the head gasket Replace
Lubricating oil consumption excessive
Oil up
1) Cylinder and piston excessive clearance Replace
2) Wearing to piston ring, ring groove.
Replace the piston ring
3) Inappropriate piston ring setting inlet
location
Correct the location
4) Clogging the air breather Clean up
5) Excessive rell of lubricating oil. Correction
Oil Down
1) Loosing the valve stem and valve guide. Replace
2) Cylinder head gasket failure Replace the gasket
3) Valve stem seal failure replace
Oil leak
1) Connection area loosing in each part. Tighten
2) Packing failure in each part. Replace the packing
3) Oil seal failure. Replace the oil seal
Lubricating oil pressure drop
1) Inappropriateness of the fuel quality. Replace the specied oil.
2) Pressure-control valve failure. Replace
3) Wearing to oil pump. Replace
4) Oil pipe failure. Correction or replace
5) Wearing to crank metal or crank pin. Metal replace