TM-9-2320-280-34 HMMWV Direct Support & General Support Maintenance Manual Download
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18-4. TRANSFER CASE REPAIR (Model 242) (Cont'd) TM 9-2320-280-34 18-36 Change 1 Clean all parts in accordance with para. 2-13. 1. Inspect all parts in accordance with para. 2-14. 2. Repair all parts in accordance with para. 2-15. 3. Inspect front half-case (1) for cracks, nicks, burrs, blocked oil passages, and broken, missing, or damaged studs (7). Also check front input ball bearing (5) and front output ball bearing (4). Repair or replace damaged studs (7). Remove burrs and clear blocked oil passages. Replace front half-case (1) if cracked or broken at any machined surface. Remove and discard front output shaft seal (10). Replace front half-case (1) if annulus gear (2) is loose or damaged. Replace defective ball bearings as follows: (a)Front output ball bearing (4). (1) Remove snapring (3) from front half-case (1). (Use bearing remover tool for A2 vehicles.) (2) Using driver handle, output shaft front bearing remover, and bearing tool, remove and install ball bearing (4) in front half-case (1). (3) Install output shaft seal (10) in front half-case (1) with output shaft seal installer. (b)Front input ball bearing (5). (1) Using driver handle, input gear bearing installer, and arbor press, press ball bearing (5) out of front half-case (1). (2) Remove snapring (6) from ball bearing (5). (3) Install snapring (6) in ball bearing (5). (Use bearing installer tool for A2 vehicles.) (4) Using wooden block, seat ball bearing (5) in front half-case (1). Seat ball bearing (5) until snapring (6) is against front half-case (1). 4. Inspect retainer (9) and O-ring (8) for damage. Replace if damaged. c. Inspection and Repair b. Cleaning DRIVER HANDLE DRIVER HANDLE BEARING TOOL INSTALLER BEARING REMOVAL TOOL INPUT GEAR BEARING INSTALLER OUTPUT SHAFT FRONT BEARING REMOVER OUTPUT SHAFT SEAL INSTALLER OUTPUT SHAFT SEAL INSTALLER A2 SERIES VEHICLE