Remy 24SI™ ALTERNATORSSLIP RING END ROTOR BEARING - Manual

Instruction Sheet
10523128
19JL13 C/P30502 REV1
NOTICE - Only licensed Remy International, Inc. product and component parts should be used, and the use of other parts or modifications not approved
by Remy International, Inc. will void all applicable warranties. The failure to carefully follow these Installation Instructions, set forth above, will void all
applicable warranties. DELCO REMY is a registered trademark of General Motors Corporation, licensed to Remy International, Inc. Pendleton, IN 46064.
©
2012 Remy International, Inc. All rights reserved 1
SLIP RING END ROTOR BEARING
REPLACEMENT INSTRUCTIONS FOR 24SI
™
ALTERNATORS
NOTICE! It may be necessary to obtain Miscellaneous Hardware Kit to replace parts that may be damaged during disassembly. The
Rectifier Positive Heat Sink Insulator should always be replaced.
WARNING!!!! ALWAYS USE PROPER EYE PROTECTION WHEN PERFORMING ANY MECHANICAL REPAIRS TO A VEHICLE –
INCLUDING, BUT NOT LIMITED TO, ANY INSTALLATION AND OR REPAIRS TO THE DELCO REMY
®
ALTERNATORS. FAILURE
TO USE PROPER EYE PROTECTION CAN LEAD TO SERIOUS AND PERMANENT EYE DAMAGE.
Only perform the mechanical functions that you are properly qualified to perform. Mechanical repairs that are beyond your te chnical
capabilities should be handled by a professional installation specialist.
DANGER!!! To avoid injury or damage, always disconnect the negative cable at the battery before removing or replacing the alternator.
The alternator output terminal is always live (“hot”). If the battery is not disconnected, a tool accidentally touching this terminal and
ground can quickly get hot enough to burn skin or damage tools and surrounding parts.
FOLLOW ENGINE OR VEHICLE MANUFACTURER’S INSTRUCTIONS CAREFULLY WHEN REMOVING AND REINSTALLING
THE ALTERNATOR.
REMOVAL INSTRUCTIONS
NOTICE! Removing the slip ring end (SRE) bearing without damaging the rotor assembly is very difficult, without specialized tooling
developed for that purpose.
1. Remove vehicle leads connected to the alternator, noting their positions for reinstallation of the alternator.
2. Remove the alternator pulley nut, pulley, drive end slinger and external drive end spacer.
3. Remove the slip ring end (SRE) cover.
NOTICE! Avoid excessive heat when melting or soldering connections. Excessive heat may damage the terminals or leads,
causing premature alternator failures.
4. Separate rectifier assembly from stator by applying enough heat to melt solder at the stator lead connections and carefully prying the
wire crimps open, three (3) places.
5. Remove the voltage regulator and rectifier assembly as a unit, carefully noting location of all screw assemblies.
WARNING!!! Failure to install the insulated screws, as removed, will cause the alternator to be inoperative and/or will damage the
alternator and potentially surrounding parts.
6. Remove the positive heat sink insulator, if damaged. Be extremely careful not to damage the surface of SRE casting.
7. Remove the brush assembly.
8. Remove the drive end frame assembly and internal spacer.
9. Remove the slinger and bearing from the rotor shaft and dispose of the old bearing.
10. Remove the SRE bearing retainer and dispose of it, if damaged.
INSTALLATION INSTRUCTIONS
1. Install new SRE bearing onto rotor shaft with a press. Being careful to not to use excessive force, push equally on both bea ring
races until bearing is seated against the fan.
2. Reinstall bearing retainer onto rotor assembly, using a press. If damaged, install a new retainer.
3. Insert the rotor assembly into slip ring end frame.
4. Reinstall the internal spacer on the rotor shaft.
5. Reinstall drive end frame assembly. Using a crossing pattern, torque the four (4) thru-bolts to 7.8-9.2 N-m (90-120 lb in).