TM  10-3930-638-24&P 2-56.    HYDRAULIC    LIFT    SYSTEM    MAINTENANCE    (cont) f. Hoses, Lines and Fittings (cont). (1) Hydraulic  Oil  Filter  Assembly  to  Control  Valve  to  Mast  Assembly  (cont). STEP LOCATION ITEM ACTION REMARKS REMOVAL  (cont) 6 (cont) NOTE When performing following step, slowly loosen fitting (46) to relieve  hydraulic  pressure  slowly. b.  Hose  fitting  (46) Loosen  and  dis- Plug end of how assembly (47) connect c.  Hose  assembly  (47) Remove d. Elbow (48) Remove e. Restrictor (49) Remove Plug  lift  cylinder  assembly  port 7 Mast assembly, a.  Hose  fitting  (50) Loosen  and  dis- Plug end of hose assembly (51) outer mast connect b.  Hose  assembly  (51) Remove Plug outer mast port c. Hose fitting (52) Loosen  and  dis- Plug end of hose assembly (53) connect d.  Hose  assembly  (53) Remove Plug outer mast port c. Hose fitting (54) Loosen  and  dis- Plug end of  hose assembly (55) connect f. Hose assembly (55) Remove Plug outer mast port g. Hose fitting (56) Loosen  and  dis- Plug end of hose assembly (57) connect h. Hose assembly (57) Remove Plug outer mast port 2-421