TM 5-3805-294-10
0020
INSTALLING IMPACT BREAKER - Continued
WARNING
Keep hands away from pin and alignment holes while thumb is being moved. Only use prybar
to push pin. Failure to comply may result in injury or death to personnel.
NOTE
Thumb may need to be repositioned multiple times with slight movements of the cylinder until
proper alignment of thumb to arm is achieved in order for pin to slide completely through.
5.
With the aid of an assistant, extend or retract thumb cylinder (Figure 1, Item 1), as needed, while using prybar
to install pin (Figure 1, Item 3) to thumb lock position (Figure 1, Item 5).
6.
Install retaining clip (Figure 1, Item 2) to pin (Figure 1, Item 3).
NOTE
There are two auxiliary circuit shutoff valves. There is one located on both sides of the arm.
Left side shown.
7.
Close two auxiliary circuit shutoff valves (Figure 1, Item 6).
8.
Move quick latch switch (Figure 2, Item 7) to UNLATCH position.
7
HYEX03398
Figure 2. Move Quick Latch Switch.
9.
Raise boom (Figure 3, Item 8) to allow for adequate ground clearance.
