
Working with thumb
WARNING
Risk of crushing.
A falling load could cause serious crushing. Lifting
a load with the dipper arm's welded thumb plate
could cause the plate to break and the load to fall.
Never use the welded thumb plate on the dipper
arm as a lifting device.
NOTE!
Refer to lifting capacities chart before using the
thumb attachment.
1 Push button (7) on right control lever (6). The
control lamp for boom offset will go out and the
proportional roller on the right lever is now
activated for thumb operation.
2 Operate the thumb with the proportional roller (9)
on the right lever.
- Roller to the right: Open the thumb.
- Roller to the left: Close the thumb.
3 To return to boom offset mode, push the button
on the right lever again. The proportional roller
is now activated for boom offset.
WARNING
Risk of crushing.
Pressure interruption by mode shifting could cause
the load to fall from the bucket.
Always lower the bucket to the ground before
shifting from thumb mode to boom offset mode.
V1078515
V1077661
Control lamp for boom offset
9
10
V1138044
7
8
6
Operating techniques
Thumb
117
Содержание ECR50D
Страница 1: ...ECR50D ECR50D operator s manual Ref no PUB20036502 A 2014 05 Volvo Konz English English ...
Страница 5: ......
Страница 9: ......
Страница 151: ...14 Engine oil dipstick 15 Engine oil filler neck 150 Service and maintenance Service points ...
Страница 191: ...Cab 190 Specifications Cab ...