Inspection Of Fan Motor - Linhai HY510S Service Manual

CHAPTER 3 ENGINE

Inspection of Fan Motor

Remove fan motor from radiator
Turn the vanes and check if they can turn smoothly;
Check fan motor: Make sure that the battery applies
12 volts to the motor and the motor will run at full
speed while the ammeter shall indicate the ampere
not more than 5A.
If the motor does not run or the ampere exceeds the
limit, replace the motor.
Installation: Apply a little thread locker to the bolts
and tighten to the specified torque.
Fan Motor Bolt Tightening Torque: 10N.m
Inspection of Thermoswitch
Remove thermoswitch
Check the thermoswitch for closing or opening by
testing it at the bench as illustrated. Connect the
thermoswitch① to the circuit tester, place it in a
vessel with engine oil. Place the vessel above a
stove.
Heat the oil to raise the temperature slowly and take
the reading from thermometer ② when the
thermoswitch closes and opens.
Tool: ammeter
Thermoswitch Operating Temperature
Standard: (OFF-ON): Approx. 88℃
(ON-OFF): Approx. 82℃
Note:
Avoid sharp impact on thermoswitch.
Avoid contact of thermoswitch with thermometer or
vessel
Installation: Use a new O-ring③ and tighten the
thermoswitch to the specified torque:
Thermoswitch Tightening Torque: 17N.m
Check coolant level after installation
thermoswitch. Fill coolant if necessary.
LH500ATV-D SERVICE MANUAL14.0
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CHAPTER 3 ENGINE PAGE. 3- 118