TM 9-4940-568-34
6-18
6-4.
SWING DRIVE ORBIT MOTOR REPAIR (Continued)
(7) Install motor housing (1) in vise with
output shaft (2) up.
(8) Apply tape over splined area of output
shaft (2).
(9) Apply sealing compound to four screws
(13).
(10) Position motor housing flange (12) on
output shaft (2) with four screws (13).
CAUTION
Tighten screws in a crisscross
pattern to properly seat motor
housing flange. Failure to
comply may result in damage to
equipment.
(11) Tighten four screws (13) to 21 lb-ft
(28 N.m).
(12) Reposition motor housing (1) in vise
with output shaft (2) down.
(13) Fill output shaft cavity with clean
hydraulic oil.
(14) Install seal (10) on motor housing (1).
(15) Position drive gear shaft (9) in output
shaft (2).
(16) Use felt tip marker to mark one drive
tooth and drive gear shaft (9). Aline this
tooth with timing dot on output shaft (2).
(17) Install spacer plate (8) on motor housing
(1).
(18) Install preformed packing (7) on geroter
(6).
(19) Install geroter (6) on output shaft (2)
alining any star point to tooth marked in
step (16).
(20) Rotate geroter (6) to line up with bolt
holes. Be careful not to disengage star
from drive or disturb geroter seal.
