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  1. R

    M998 60A alternator not charging

    Brush holder released from it’s epoxy cocoon. A pencil tip soldering iron worked great in this case. Sent from my iPhone using Tapatalk
  2. R

    M998 60A alternator not charging

    Voltage regulator adjustment plug was stripped/frozen. Drilled and extracted so the VR can be adjusted in the future. 10M Tapered plug replacement Sent from my iPhone using Tapatalk
  3. R

    M998 60A alternator not charging

    Brushes are on the way [emoji106] Sent from my iPhone using Tapatalk
  4. R

    M998 60A alternator not charging

    Found TM 9-2920-225-34 :) Looks like two choices from what I can gather: 1) de solder the rectifier to stator leads and remove rectifier housing 2) remove epoxy vibration potting from yellow capacitor/brush housing to remove brush housing from rectifier
  5. R

    M998 60A alternator not charging

    Voltage regulator and rectifier cleaned in preparation for service. Sent from my iPhone using Tapatalk
  6. R

    M998 60A alternator not charging

    Ok, progress. Removal and disassembly confirms worn brushes. One bush is entirely disconnected from the lead. Ordering a brush kit to repair. Voltage regulator looks good visually. Q: How are the brushes replaced? Looks like the rectifier housing needs to be separated from the main body to...
  7. R

    M998 60A alternator not charging

    Thanks! I just happened to find Southern Automotive in the archive and called them today. I did not find their trouble shooting content but hope to speak to them directly tomorrow. Hopefully this is as simple as replacing the regulator and brushes Sent from my iPhone using Tapatalk
  8. R

    M998 60A alternator not charging

    Editorial this silicone potting is great. A PITA to remove for access to term 568 though. Sent from my iPhone using Tapatalk
  9. R

    M998 60A alternator not charging

    Full battery voltage at alternator side of wire 568. Voltage at wire 2A fluctuates in a low range while running. Moving to removing alternator for disassembly/inspection of voltage regulator and brushes. Q: is there a bench testing procedure to test the stator windings and other internal...
  10. R

    M998 60A alternator not charging

    Update: Per TM 9-2320-280-20-1 Step B2 page 2-204 confirmed voltage on harness side of wire 568. Checking alternator side of wire tomorrow. Sent from my iPhone using Tapatalk
  11. R

    M998 60A alternator not charging

    I’m using the M998A1 component testing and troubleshooting manual. However, this manual refers to the 100 amp alternator versus the 60 amp alternator. Is there any difference in triage? I’m getting no charging output. I have not yet conducted the amps test however the output voltage is battery...
  12. R

    What have you done to your HMMWV today/lately

    3/4” mat 4’x6’ cut down. Yeah, it definitely smells like new tires. I understand it will off gas’s after a while. Sent from my iPhone using Tapatalk
  13. R

    What have you done to your HMMWV today/lately

    Horse stall mat for the bed. Sent from my iPhone using Tapatalk
  14. R

    Mep-802a part numbers for panels

    I’ve found it is fairly easy to straighten minor panel damage on the 802/803 series... Sent from my iPhone using Tapatalk
  15. R

    MEP-802A short/fire

    Also applied Noico black insulation to one access door and the top panel over the main wiring. Sent from my iPhone using Tapatalk
  16. R

    MEP-802A short/fire

    Finished making replacement output wires A2/B2/C2. Added an insulated cable clamp and abrasion shielding as well. Sent from my iPhone using Tapatalk
  17. R

    What have you done to your HMMWV today/lately

    Replaced RR spring on M998. RR was a tad fatigued. LR is next. 1750# springs before/afterwards. New plow springs are a great deal. Sent from my iPhone using Tapatalk
  18. R

    MEP-802A short/fire

    Finally getting around to teardown and wire replacement... Looking at replacement terminals and wire now. Terminals are6 awg 1/2” and 1/4” ring nylon crimp. Wire is 6 awg milspec high temp M5086/2-6-9. Teminals are easy enough. Wire is nearly unobtanium and Very expensive. Abrasion...
  19. R

    Adding structural support for A-B pillars

    I saw an 1123 on Govplanet that had obviously been rolled. The entire A pillar structure folded rearward along with the B pillar. Sent from my iPhone using Tapatalk
  20. R

    M988 upgrade to M1045A2? Is it worth it?

    If you are planning on highway driving the 4 speed transmission is more humane. Slightly less risk of getting rear ended if you can keep pace with the speed limit. Sent from my iPhone using Tapatalk
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