TM 10-3930-671-24 3. Carefully  pull  the  rod  and  piston  assembly  from the cylinder barrel. The use of compressed air to blow the piston out of the barrel is not recommended. High-pressure air can result in    piston    and    rod    being    ejected    at    high    velocity (explosively),   causing   severe   injury   to   personnel   and property damage. 4. Remove  both  sets  of  piston  seals  and  back-up rings.  Discard old seals. 5. After cleaning and inspection (see below), install new seals and back-up rings. 6. Remove    the    gland    seal,    gland    packing    and piston rod wiper. Discard old seals. 7. After cleaning and inspection (see below), install new gland seal, packing and rod wiper. Inspection 1. Carefully  clean  all  parts  in  an  approved  solvent and place on a clean surface. 2. Check   the   piston   rod   for   damage.   Look   for gouges,    scratches,    corrosion    or    evidence    of unusual   wear.   Minor   surface   damage   may   be repaired by use of fine abrasion cloth or stoning. Deeper    damage    will    require    replacement    of piston rod assembly. 3. Be sure the threads on rod are undamaged. 4. Inspect  the  tilt  cylinder  barrel  internal  bore  for wear,   scratches   or   other   damage.   Check   the outside for damage. Inspect all welds for cracks. Deep  gouges  or  pitted  surfaces  require  replacement  of parts. F-478