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ASSEMBLE BOOM, ARM OR BUCKET CYLINDER - Continued
ASSEMBLE BOOM, ARM OR BUCKET CYLINDER - Continued

Maintenance Manual For Hydraulic Excavator 230Lcr And 230Lcrd With Rock Drill 2
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TM 5-3805-280-24-2
Hydraulic System
6. Install buffer ring seal (I) with notched side towards
wear ring (B)
Install black buffer ring (D) with notched side (C)
towards the wear ring.
Install green buffer ring (E).
7. Install U-cup seal (F) with lip towards wear ring (B)
using the bending method (K)
Install backup ring (G).
8. Install wiper seal (H) so lip is towards outside of
cylinder.
9. Install rod guide (J) on the rod.
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A--Snap Ring
B--Wear Ring
C--Notched Side
D--Black Buffer Ring
E--Green Buffer Ring
F--U-Cup Seal
G--Backup Ring
H--Wiper Seal
I--Buffer Ring Seal
J--Rod Guide
K--Bending Method Seal Installation
Continued on next page
TX,33,UU3814
1907JAN978/17
21-205


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