TM 9-2320-279-34-3
M977, M985, and M984E1 Crane Maintenance Instructions (Cont)
(6) Remove race (12), bearing (13), race (14), and
spacer (15).
(7) Remove sun gear (16) and preformed packing (17)
from swing drive (6).
(8)
(9)
(10)
(11)
(12)
(13)
(14)
NOTE
• M985 has two planetary assemblies.
M977 has one.
• Steps (8) through (16) are for M985 only.
Remove planetary assembly (18) from
swing drive (6).
Drive roll pin (19) into pin (20).
Remove pin (20), gear (21), and two
spacers (22).
Remove roll pin (19) from pin (20).
Remove bearing (23) from gear (21).
Repeat steps (9) through (12) for other two
assemblies.
Remove center spacer (24) from carrier (25).
17-41
