TM 10-3930-659-34 4-63. SEAT ASSEMBLY REPAIR (Con’t). 38. Install spacer (26), bushing (27), two spacers (28 and 33), adjusting arm lever (32), and bracket (29) on seat pan (7) with two screws (30). 39. Install two spacers (25) and bracket (24) on seat pan (7) with two screws (23). 40. Install spring (31) on adjusting arm lever (32) and bracket (29). 41. Install two armrests (22) on backrest (1) with two washers  (20),  screws  (18),  washers   (21),   and nuts (19). 42. Install lumbar adjustment knob (17) on backrest (1) with new dowel pin (16). 43. Install washer (15), spacer (14), and washer (13) on lumbar adjustment knob (17) with new cotter pin (12). 44. Repeat    steps    42    and    43    for    other    lumbar adjustment knob (17). 45. Install molding (11) on backrest (1). 4-253