TM 10-3930-664-24 13. Release  left  tilt  cylinder  (22)  from  mast  clevis (23) by removing roll pins (25) and pin (24). 14. Repeat step 12 for right tilt cylinder. WARNING Mast assembly is heavy and awkward.    Enlist  the  help  of  an  aide when  removing  to  prevent   injury   to personnel and damage to components.    Ensure  lifting  sling  is securely  attached  to  lifting  eyes  and taut. 15. Remove mast assembly (26) from frame bracket (27)   by   removing   screws   (28),   rod   ends   (29), pins   (30),   thrust   bearings   (31),   and   bushings (32). B.  CLEANING Clean  mast  assembly  in  accordance  with  paragraph  1- 24. C.  INSPECTION Inspect    mast    assembly    and    related    components    in accordance with paragraph 1-24. D.  INSTALLATION WARNING Mast assembly is heavy and awkward.    Enlist  the  help  of  an  aide when   installing   to   prevent   injury   to personnel and damage to components.    Ensure  lifting  sling  is securely attached to lifting eyes. 1. Attach lifting sling to mast assembly lifting eyes. Position  mast  assembly  for  mounting  to  forklift frame. 2. Attach mast assembly (26) to frame bracket (27) using   screws   (28),   rod   ends   (29),   pins   (30), thrust bearings (31), and bushings (32). 3. Attach  left  tilt  cylinder  (22)  to  mast  clevis  (23) using roll pins (25) and pin (24). 4. Repeat step 3 for right tilt cylinder. 3-220 TM 10-3930-664-24