M977, M985, and M984E1 Crane Maintenance Instructions (Cont)
Right and left cylinders are removed the same.
Remove screw (1), washer (2), spacer (3), and lockpin (4).
Repeat step (1) for other side.
Do not drive pin out of erection cylinder.
Drive pin (5) in far enough to clear cylinder (6).
Remove screw (7), washer (8), spacer (9), and
Repeat step (4) for other side.
Drive pin (11) in far enough to clear cylinder (6).
Remove cylinder (6) from crane (12).
(1) Remove two setscrews (1)
from cylinder (2).
(2) Remove four grease fittings (3)
and bushings (4) from rod
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 water.
(1) Clean all metal parts in dry cleaning solvent.
(2) Inspect each part for damage.
(3) Replace damaged parts.
(4) Check bushing diameter. Diameter must not exceed 2.015 in. (50.82 mm).