Product Overview
ALPHA3D USER MANUAL
| 2019-06
P a g e | 22
3.6.1.1
Extension Installation
Firstly, using 4 manufacture standard M8 screws to fix roof rack and vehicle cross-bar (
THULE
brand is recommended), which shown in Figure 1. Then, unscrew the screws of roof rack and
adjust the extension length, which shown in Figure 2. The maximum length is 400mm which
divided into 4 sections and each section is 100mm. The brand of vehicle cross-bar is chosen as
THULE and the maximum load weight is 70kg. Turning in clockwise direction to unscrew thumb
screws and turning in anti-clockwise direction to lock thumb screws, which shown in Figure 3.