TM 10-3930-653-14&P TILT CYLINDERS 1.    To   repair or replace tilt cylinder(s), first support the upright   with   a   chain   hoist   in   such      a      way   that unhooking the cylinder(s)  will not  cause the upright to tilt.  CAUTION:  Do not  chain  the  upright  to the overhead guard. 2. Remove  the key plate  (Item  30) and the tilt cylinder eye pin. 3.    Retract the cylinder ram. 4. With  a  spanner  wrench   unscrew   the   cylinder   cap (Item 17) and  pull  the  ram  (Item  23)  and  cap  as  an assembly   out  of  the  cylinder tube. 5. Packing    on    the    piston    can    now    be    replaced (Packing  Kit  #2445850311). 6. To   replace   all  packing   use overhaul kit instead (Part Number 24458-5981i). 7. Place rod end in a vise.  Loosen the locking bolt and nut so you can freely turn the piston ram to unscrew it  completely.    Make  sure  you  do  not  misplace  the shims (Item 9). 8. Loosen  the  set  screw  (Item  11)  in  the  spacer  (Item 12) so it can be removed. 9. Replace all packing and O-rings in the cylinder cap. 10.  Inspect cylinder tube.  If it is damaged, to replace it, unscrew the   two   high pressure hose connections. Take   the floor board out to make it easier to get to the rear connection. 11.  Remove  the  parallel  key  and  pin  at  rear  of  cylinder and lift the cylinder out from the front. 12.  Reassemble in reverse order. 4-205