Item Description Item Description
1Boom Butt 9Spring
2a Adjusting Rod for 83° or 85° Boom Angle—89 mm (3.50 in) 10 Spring Washer
2b Adjusting Rod for 86° Boom Angle—85 mm (3.344 in) 11 Actuator Rod
3 Jam Nut 12 Switch Closed
4 Coupling (part of actuator rod) 13 Overtravel (switch open)
5 Boom Stop Switch Unit 14 Digital Protractor-Level
6 Limit Switch 15 Boom Butt Bottom Chord
7 Spring Washer 16 Digital Level Angle
8 Spring Pin 17 Blue Jumper Wire
View D
LIMIT SWITCH WIRING
Receptacle
Switch
Terminals
Function
Black 13 Ground
Green 14 Maximum Angle
White 21
24 V
DC
Supply
Blue 14 22 Jumper
View C
RIGHT SIDE OF BOOM BUTT
Maximum Switch Boom Angle
Digital Level
Angle (16)
84.5°—Boom with EUBP
76°
86.5°—Boom Only
78°
87.5°—Boom with Luffing Jib
79°
View A
SWITCH OPENED
View B
SWITCH CLOSED
Maximum Boom Angle
83°—Boom with EUBP
85°—Boom Only
86°—Boom with Luffing Jib
FIGURE 4-3