Brother LX-300 Service Manual page 130

Cam groove on side of Control cam gear (8 positions) CL2000010, CL2000016
Control Cam Gear
Apply lubricant to inside of cam groove on Control Cam Gear.
Fig. 6.1-2 Cam Groove on Side of Control Cam Gear
LF motor gear (1 position)
LF motor gear
Fig. 6.1-3 LF Motor Gear
SG motor gear (1 position)
SG motor gear
Fig. 6.1-4 SG Motor Gear
6-2