TM-9-2320-280-34 HMMWV Direct Support & General Support Maintenance Manual Download
Page 465 of 1258
TM 9-2320-280-34 7-4. TRANSMISSION OIL PUMP SEAL REPLACEMENT (3L80) This task covers: a. Removal b. Installation INITIAL SETUP: Applicable Models Manual References All vehicles except: M997A2, M1025A2, TM 9-2320-280-10 M1035A2, M1043A2, M1045A2, M1097A2 TM 9-2320-280-24P Tools Equipment Condition General mechanic's tool kit: Transmission/transfer case assembly removed automotive (Appendix G, Item 1) (para. 7-6). Special Tools General Safety Instructions Oil pump seal installer Torque converter must be supported during (Appendix G, Item 39) removal and installation. Materials/Parts Maintenance Level Sealing compound (Appendix B, Item 47) Direct support WARNING Torque converter must be supported during removal and instal- lation. Failure to do this may cause injury to personnel or damage to equipment. NOTE This procedure is for the 3L80 transmission oil pump seal replacement only. Refer to para. 17-29 for 4L80-E oil pump seal replacement. a. Removal NOTE Have drainage container ready to catch fluid. 1. Remove torque converter (3) from transmission (1). 2. Remove oil seal (5) from oil pump (6). b. Installation 1. Apply sealing compound to outside diameter of oil seal (5). 2. Using seal installer, install oil seal (5) in oil pump (6). 3. Install torque converter (3) in transmission (1). Ensure drive lugs of inner pump rotor in oil pump (6) are properly engaged with drive slots (4) of torque converter hub (2). 7-4