Remy 50MT Brush Plate Brush User Manual

Remy Generators

Instruction Sheet

10533716

23OC13 REV 1

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.
©

50MT™ BRUSH PLATE & BRUSH SERVICE KIT REPLACEMENT AND DUST CLEANING

These instructions include thorough brush dust cleaning procedures.

NOTE: It is beneficial and possibly necessary to obtain the commutator end (CE) service package,

for reassembly of the brushes.

It is preferable to use new, undamaged parts.

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 STARTING
MOTORS. 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
technical capabilities should be handled by a professional installation specialist.

FOLLOW ENGINE AND/OR VEHICLE MANUFACTURER'S INSTRUCTIONS CAREFULLY WHEN REMOVING AND
INSTALLING THE STARTER.

DISASSEMBLY PROCEDURES FOR REPLACING BRUSH/BRUSH PLATE SERVICE KIT

DANGER!!!

ALWAYS DISCONNECT BATTERY GROUND BEFORE REMOVING OR REPLACING CABLES AT THE

STARTER. FAILURE TO DISCONNECT THE BATTERY GROUND CABLE CAN LEAD TO SERIOUS INJURY.

Remove vehicle leads connected to the starter, noting their positions for reinstallation of starter, and remove starter.

Remove the solenoid lead from the ground stud in the CE housing, noting position of the ground stud or mark the CE housing
& frame for reassembly.

Remove the six (6) CE screws.

Remove the 3 plugs from the frame to allow removing the three (3) field leads to positive brushes attaching screws for 12V,
24V & 32V models or two (2) field leads to positive brushes attaching screws for 64V models.

Remove the CE housing and armature assembly as a unit. It’s best to remove them together to keep the brushes contained.

If only replacing the brushes, remove the remaining brush screws and contain in that position with the brush springs to release
the armature. Go to step 5 in reassembly procedures.

From the insulated/ground terminal, carefully noting orientation for reassembly, remove all remaining hardware. Check the
condition of insulators and sealing features and consider replacing them if they are damaged or excessively worn.

Remove the three (3) brush plate to CE housing attaching screws and remove brush plate.

BRUSH DUST CLEANING PROCEDURES (See graphics, page 2)

1. It is strongly recommended that the brush plate assembly and CE frame be separated for a thorough cleaning, being very

careful not to damage the aramid paper (white) insulator or grommet for the insulated/ground terminal.

2. Note: Do not use air pressure to remove dust from inside the frame.
3. Using a low pressure source of air, blow the brush dust out of the CE frame and the brush assembly. It may be necessary to

use a screw driver or similar device to remove all of the carbon (hardened brush dust).

4. It may also be necessary to scrape the hardened dust from the four recessed holes that are on the back side of the brush

holder assembly. These recessed holes are for the threaded ends of the ground brush holders.

5. Thoroughly examine the brush plate for chunks of hardened brush dust that could become grounded and carefully remove.

The fiber insulators at the base of the insulated brush holders is an area that may need some cleaning. Remove the hardened
brush dust all around the outside edge of these insulators.

6. Any cleaning inside the frame should be done with a nylon brush or cloth.

REASSEMBLY PROCEDURES FOR BRUSH/BRUSH-PLATE SERVICE KIT

1. Place the insulator paper in between brush-plate assembly and the CE housing.
2. Place the two (2) insulator washers and rubber bushing on the ground stud at the brush-plate.
3. Attach the brush-plate assembly to the insulator paper on the CE with the three (3) attaching screws. Torque the screws to

1.92-3.95 Nm (17-35 lb in).

4. Place the plastic insulator, flat washer, lock-washer and nut on the ground stud. Torque the nut to 27.12 Nm (240 lb in).
5. Replace the brushes and contain them in the upward position with the brush springs. Place the armature inside the brush

holder cavity and release the brushes onto it. If only replacing the brushes, another option is to replace the brushes one at a