The function of an alternator is to charge the car battery and to generate power to the electrical system when the engine is running. Replacing the alternator yourself on a Volvo 240 is a relatively easy job which can save you substantial labor costs.
Alternator Removal
STEP 1 - Working on a cold engine, disconnect the negative battery cable, then disconnect the electrical leads to the alternator.
STEP 2 - Loosen the alternator adjusting bolts and position the alternator so that the drive belt may be removed.
STEP 3 - Take out the alternator adjusting bolts and mounting bolts. Remove the alternator.
Alternator Replacement
STEP 1 - Reverse the removal steps above by first positioning the new alternator in place.
STEP 2 - Reinstall the mounting and adjusting bolts, but do not tighten completely.
STEP 3 - Replace the drive belt, making sure to adjust the tension correctly. You should be able to depress the drive belt 5 to10 mm midway between the pulleys. Once the tension is correct, tighten the bolts.
STEP 4 - Reconnect the electrical leads to the alternator.
STEP 5 - Reconnect the negative cable to the battery.
TIPS: Some models may require the air pump to be removed to get to the alternator.
THINGS YOU'LL NEED: Socket wrench set, Torque wrench, Replacement alternator
WARNINGS: Never use a metal pry bar on the new alternator housing as damage may occur.
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