TM 9-2320-361-20 11-27. DRIVER’S SEAT BASE MAINTENANCE (Contd) I b. Inspection and Repair 1. Refer to para. 2-10 for general inspection. 2. Refer to TM 9-237 for welding. 3. Inspect seat base (3), top frame (2), upper strut (6), lower strut (7), and sleeve(9) for cracks, bends, and breaks. Repair if cracked, bent, or broken. 4. Inspect torque rod (5), spring (4), crank (1), and two springs (8) for cracks, bends, and breaks. Replace if cracked, bent, or broken. 5. Inspect shock absorber (10) for cracks, bends, breaks, and leakage. Replace if cracked, bent, broken, or leaking. 11-46