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42hW-201601
CHAPTER 2 ENGINE 3015R(h)/3515R(h)/4015R(h)/F36R(h)/F42R(h) TRACTOR
TROUBLE CAUSE REPAIRING
Engine overheat
1) Coolant shortage or fur forms Rell or clean up
2) Fan is loose, damage, or not balanced Correction or replace
3) Water pump performance degradation. Correction or replace
4) Valve clearance unsuitable Correction
5) Resistance increase in exhaust system. Clean up or Replacement
6) Clogging the radiator air path. Clean up
7) Inappropriate injection timing. Correct the injection timing
8) Cylinder head gasket breakage. Replace the head gasket.
9) Shortage or failure the lubricating oil. Rell or Replacement.
Engine noise excessive
Crankshaft metal
1) Oil clearance increase by wearing
the metal or crankshaft.
Replace the metal or polishing
the crankshaft.
2) Eccentricity wearing to crankshaft
Polishing or replace the
crankshaft.
3) Seizure of metal
Replace the metal or polishing
the crankshaft.
Connecting rod metal
1) Wearing to crankshaft pin metal. Replace the metal.
2) Wearing to crankshaft pin. Replace the crankshaft.
3) Bending to connecting rod. Correction or replace.
4) Seizure of crankshaft pin metal
Replace the metal or polishing
the crankshaft.
5) Oil supply shortage by clogging the oil line. Clean the oil line
Piston, Piston pin and
piston ring
1) Piston clearance increase piston
by wearing the piston and piston ring.
Replace piston and piston
ring
2) Wearing the piston pin diameter
and piston pin
Replace
3) Wearing to piston Replace
4) Piston wear or failure Replace
5) Piston ring failure Replace
Engine noise excessive
1) Wearing to crankshaft, thrust bearing. Replace the thrust bearing.
others
2) Excessive backlash of timing gear. Replace the timing gear.
3) Excessive valve clearance. Correct the Valve clearance.
4) Wearing to valve part. Correction or replace
5) Water pump bearing failure Replace the pump.
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