M977, M985, and M984E1 Crane Maintenance Instructions (Cont)
17-19. EXTENSION CYLINDER REPAIR (CONT).
Remove preformed packing (24),
backup ring (25), and head (26)
from rod (11).
Remove backup ring (27),
seal (28), and two wear
Remove end cap (10) from rod (11).
Remove dust seal (30) from end cap (10).
Adhesives, solvents, and sealing
compounds can burn easily, can give off
harmful vapors, and are harmful to skin
and clothing. To avoid injury or death,
keep away from open fire and use in
well-ventilated area. If adhesive, solvent,
or sealing compound gets on skin or
clothing, wash immediately with soap and
(1) Clean all metal parts in dry cleaning
(2) Inspect each part for damage.
(3) Replace damaged parts.
Both ends of cylinder are assembled the
(1) Install dust seal (1) in end cap (2).
(2) Install end cap (2) on rod (3).