Situational Awareness; Confusion
Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural Maintenance
Aircraft Aircraft Damaged
Human Factors; Manuals
[Maintenance Technicians] were working off of EMB 175 Maintenance Manual 32-11-05 to install the side stay on the left hand main landing gear. The side stay upper section was already installed; and the lower section was sitting on a table behind the left wing. According to the manual; you place the lower section into position and slide the pin through into the upper section; lower section; and the down lock arm and torque the through bolt. The manual does not state that the orientation of the grease fittings is of any consequence. If it had; this problem would not have occurred. I also referred to images attached to the Aircraft Maintenance Manual; and nowhere is there even an image showing the correct orientation. I would like to see [part orientation information] added to the Maintenance Manuals in the near future to stop this from occurring again.
The Aircraft Maintenance Manual did not provide the part detail sufficient to prevent the incorrect orientation and subsequent damage to landing gear components.