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Figure 4. Left Side Boom Load Holding Valve Installation.
BOOM LOAD HOLDING VALVE HOSES REPLACEMENT

Maintenance Manual For Hydraulic Excavator Type 1 With Hydraulic Thumb And Quick Latch -4 Page Navigation
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TM 5-3805-294-23-4
0649
LEFT SIDE BOOM LOAD HOLDING VALVE INSTALLATION - Continued
14.
Install fitting (Figure 4, Item 40), O-ring (Figure 4, Item 41), and sealing ring (Figure 4, Item 42) to boom load
holding valve (Figure 4, Item 31).
15.
Install fitting (Figure 4, Item 36) to fitting (Figure 4, Item 40).
16.
Lightly lubricate O-ring (Figure 4, Item 38) with clean oil.
17.
Install O-ring (Figure 4, Item 38) to fitting (Figure 4, Item 39).
18.
Install hose (Figure 4, Item 37) to fitting (Figure 4, Item 39).
19.
Install fitting (Figure 4, Item 39) to fitting (Figure 4, Item 36).
20.
Install hose (Figure 4, Item 10) to fitting (Figure 4, Item 36).
21.
Lightly lubricate O-ring (Figure 4, Item 34) with clean oil.
22.
Install O-ring (Figure 4, Item 34) and sealing ring (Figure 4, Item 35) to fitting (Figure 4, Item 33).
23.
Install fitting (Figure 4, Item 33), O-ring (Figure 4, Item 34), and sealing ring (Figure 4, Item 35) to boom load
holding valve (Figure 4, Item 31).
24.
Install hose (Figure 4, Item 32) to fitting (Figure 4, Item 33).
25.
Lightly lubricate O-ring (Figure 4, Item 29) with clean oil.
26.
Install O-ring (Figure 4, Item 29) and sealing ring (Figure 4, Item 30) to fitting (Figure 4, Item 28).
27.
Install fitting (Figure 4, Item 28), O-ring (Figure 4, Item 29), and sealing ring (Figure 4, Item 30) to boom load
holding valve (Figure 4, Item 31).
28.
Install hose (Figure 4, Item 27) to fitting (Figure 4, Item 28).
END OF TASK
FOLLOW ON MAINTENANCE
1.
Release vacuum from hydraulic reservoir. (WP 0620)
2.
Install boom guard. (WP 0648)
3.
Perform the Standard Follow-On Maintenance Instructions. (Volume 3, WP 0384)
END OF TASK
END OF WORK PACKAGE
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