TM 9-2320-361-34 16-14. DUMP BODY SUBFRAME MAINTENANCE (Contd) c. Installation NOTE Perform steps 1 through 3 if installing new subframe. 1. Install hydraulic safety latch (para. 16-13). 2. Install hydraulic cylinders (para. 16-8). 3. Install control valve (para. 16-10). 4. Attach two chains to subframe channels (2). 5. Attach lifting device to center of two chains. 6. Attach two guide lines to front and rear of subframe (3). WARNING All personnel must stand clear during lifting operations. A swinging or shifting load may cause injury or death to personnel. NOTE Assistant will help guide subframe during lifting operations. 7. Lift subframe (3) clear of wooden supports. 8. Lower subframe (3) on frame sill (10) and frame (6) with brackets (1) and (8) alined. 9. Install two subframe brackets (4) on frame (6) with six screws (7) and new locknuts (5). 10. Install two subframe brackets (1) to frame brackets (8) with four screws (9), four keepers (13), four springs (14), keepers (13), washers (12), and new locknuts (11). 11. Remove lifting device from two chains. Remove two chains from subframe channels (2). 12. Remove two guide lines from front and rear of subframe (3). 16-76