Operation CHARM: Car repair manuals for everyone.
Home >> GMC >> 1992 >> Syclone V6-262 4.3L Turbo >> Repair and Diagnosis >> Heating and Air Conditioning >> Blower Motor >> Service and Repair >> Blower Motor Fan Replacement >> With A/C

With A/C

Push On Fan-Removal Procedure:






REMOVE OR DISCONNECT


1. Blower motor and fan assembly.

2. Using a hot knife, cut a slot in cage motor shaft sleeve in three places. Starting 12.7 mm (1/2-inch) from base of shaft, start cut from fan dome and continue to cut through the plastic material to the end of the shaft so that the fan splits from the shaft.

3. Fan cage from blower motor shaft by pulling straight out.


Alternative Removal Methods

1. Using small wheel puller:

- Remove tip of fan at end of motor shaft using soldering iron or cutting pliers.

- Draw fan from motor shaft using a small puller. Hook legs of puller between fan lower rib and motor mounting plate. Thread center post of puller against the end of the motor shaft exposed in the above step.

2. Using drill press or arbor press:

- Remove tip of fan at end of motor shaft using soldering iron or cutting pliers.

- Support fan with blocks, angle iron, etc. while allowing the motor to be suspended (see accompanying figure).

- Place steady pressure on tip of motor shaft, with a drill press or small arbor press and pin arrangement. Motor should fall freely from the fan after moving motor shaft about 12.7 mm (1/2-inch).


NOTICE: Do not use force on motor to remove or install fan. Do not apply force to motor housing to seat fan on motor, or force motor/shaft bearing damage could result. Do not apply pressure to fan rim. Be sure correct replacement pen is used.


Push On Fan Assembly Procedure:






INSTALL OR CONNECT


1. Press fan onto shaft (see accompanying figure).

- Grasp fan by dome and apply hand pressure to fan dome, insert fan on motor shaft until slightly seated on shaft.

- Place fan and motor on a combination of 10mm x 3/8" drive socket and 1/2" x 3/8" reducer (see accompanying figure).

- While steadying the fan and motor, apply steady force to rear of motor shaft using a drill press or small arbor press and pin.


Adjust

- Fan cage, using spacers, to a clearance of 5.5mm (0.22 inches) to motor mount plate.

2. Blower motor and fan assembly.

- Check circuit operation.
pro multis · About Operation CHARM