HYDRAULIC  SYSTEM  TROUBLESHOOTING  AND 12-15. Fork  Position  Cylinders  (S/N REMOVAL NOTE 1. 2. 3. 4. 5. 6. 7. 8. TM 10-3930-643-34 MAINTENANCE.  (cont) 2000 and below). (Sheet 2 of 10) Tag all hose and tube assemblies before disconnecting to aid in installation. Using an 11/16" open end wrench, disconnect tube assemblies (1 and 2) from tee fitting and elbows (3 and 4) on vehicle carriage assembly. Remove elbows (3 and 4) and preformed packings (5 and 6). Discard preformed packings (5 and 6). Disconnect  tube  assembly  (7)  from elbow (8) and flow divider. Remove elbow (8) and preformed packing (9).  Discard  preformed packing (9). Disconnect tube assembly (10) from elbow (11) and from flow divider. Remove  elbow  (11)  and  preformed packing (12). Discard packing  (12). preformed Using  slip  joint  pliers,  remove cotter pin (13) and pin (14) from cylinder  assembly  (16)  and  mounting bracket. Discard cotter pin (13). Using a 1-1/8”   socket and socket wrench handle, remove nut (15). Go to sheet 3 12-133