Lull 644E-42 Operation Manual - Manual (Page 70)

68 Model 644E Origin 3/04
Operation
Boom Angle Indicator
The boom angle indicator (1) is a bubble type indicator with angular graduations (2)
from -20 to +80 . It is located on the left side of the outer boom (3) and is visible
from the operators position. Use this indicator to determine the boom angle when
reading the capacity chart (see ìUsing the Capacity Chartî on page 71).
Boom Extension Indicator
The boom extension indicator is a series of letters (4) that become visible as the
boom is extended. It is located on the left side of the intermediate boom (5) and is
visible from the operators position. Use this indicator to determine the boom
extension when reading the capacity chart (see ìUsing the Capacity Chartî on
page 71).
Indicators
OU0460
3
1
2
A B
OU0470
4 5