Factory Direct Tractors
Trouble-Shooting
9.1.7 Engine overheating
9.1.8 Engine using too much oil
9.1.9 Engine oil level rising
9.1.10 Runaway engine
Possible causes
Solutions
a. Piston ring blow past.
Replace with new rings.
b. Incorrect engine oil level or contaminated with
water.
Check and replace the engine oil or adjust the oil
level by draining or filling to the required level.
c. Bearings are fitted too tight
Check and adjust.
d. Water pump is broken or its drive belt is too
loose, resulting in water overheating.
Check and adjust.
e. Temperature thermostat is out of order, or
insufficient coolant in tank.
Check and replace the thermostat or replenish
coolant.
f. Cylinder head gasket is blown.
Replace it with a new one.
g. Too much scale in the water jacket.
De-scale the water jacket.
h. Injector seized.
Replace it with a new one.
i. Engine overloaded.
Adjust the gearing.
j. Injector timing is too advanced.
Adjust as per specification.
Possible causes
Solutions
a. Injector pump oil delivery control rod seized at
the maximum position.
Check and repair it.
b. Governor Sliding disc sleeve seized.
Check and replace it.
c. Fuel rack broken, seized or separated from
fork.
Check and replace it.
d. Too much lube oil in the injector pump.
Drain out to the required level.
e. Too much lube oil entering into cylinder.
Check and repair it.
Possible causes
Solutions
a. Incorrect oil specification.
Use engine oil as specified.
b. Piston rings worn out.
Replace them with new ones.
c. Piston ring sticking, oil return hole in piston ring
groove plugged up.
Remove carbon deposit and clean the piston.
d. Rear main seal leaking.
Check, replace with new rear seal and its cover.
e. Oil level too high.
Drain oil to correct level.
Possible causes
Solutions
a. Water leakage from cylinder head gasket.
Check and replace it. Flush the crankcase.
b. Water leaking from cylinder head or welsh plug
in the engine block.
Replace it with a new welsh plug. Flush the
crankcase.
9-4
Summary of Contents for ZB25
Page 1: ...Factory Direct Tractors Operator s Manual ZB25 ZB35 ZB45 ...
Page 2: ...Factory Direct Tractors ...
Page 30: ...Factory Direct Tractors Front End Loader Safety ROL 350KG S 25 ...
Page 31: ...Factory Direct Tractors Front End Loader Safety S 26 ...
Page 32: ...Factory Direct Tractors Front End Loader Safety S 27 ...
Page 33: ...Factory Direct Tractors Front End Loader Safety S 28 ...
Page 34: ...Factory Direct Tractors Front End Loader Safety BL25 S 29 ...
Page 61: ...Factory Direct Tractors Technical Maintenance 7 6 7 6 Recommended oil ...
Page 91: ...Factory Direct Tractors Front End Loader THIS PAGE INTENTIONALLY BLANK ...
Page 92: ...Factory Direct Tractors Front End Loader 13 1 13 1 BUCKET ASSEMBLY 13 Loader Parts ...
Page 94: ...Factory Direct Tractors Front End Loader 13 3 13 2 TOOL CARRIER ASSEMBLY ...
Page 96: ...Factory Direct Tractors 13 5 Front End Loader 13 3 ARM ASSEMBLY ...
Page 98: ...Factory Direct Tractors Front End Loader 13 7 Front End Loader 13 4 MOUNTING KIT ASSEMBLY ...
Page 101: ...Factory Direct Tractors 13 10 Front End Loader THIS PAGE INTENTIONALLY BLANK ...
Page 111: ...Factory Direct Tractors ...