CAME GARD PX GPX40MGP Manuel D'installation page 55

Balancing the boom
1 - Release the gearmotor
2 - Manually turn the spring to increase or reduce the traction.
The boom should stabilize at 45°.
3 - Fasten the locknut.
Position the boom vertically.
4 - Lock the gearmotor
Check the proper working state of the spring. With the
boom in vertical position the spring is not taut. With the
boom in horizontal position the spring is taut.
1
2
3
4
45°