For each use of the G module. You must make sure that: the thread of the screws does not project through the lower side of the G module (max flush).Position the G Module in the rail channel and fasten it loosely with 2 to 3 turns of the screw. The screws can still be freely moved in the rail channel. Slide the screw to their final position in connection with the inter-module lamp ,module end clamp or L feets/hanger bolts and fastens firmly(recommended torque is 8 N.m). As the Figure 1.
L-Feet install with the Rail.
1).L-Feet Pre Installation.
Follow Figure 2 red mark A, keep the M8*25 Bolt no beyond the G module.
2).Install the L-Feet to the roof.
3).Install the Rail
Keep the Bolt in the position as the Figure 2 red mark A,
Keep the Rail on the L-feet Position as the Figure 5
Press the rail and let the G-module in the position as the Figure 6
Lock the Bolt, let the bolt exceed the G-moudle 3~4mm as the Figure 7 , Remember do not tighten bolt,. then the rail and l-feet can be moved per your demand .
Let the rail leave the L-Feet a little Gap, that the rail can adjusted up or down.
Adjusted the Rail in the Position that you want, and fastens firmly.