TM 1-1730-232-13&P
3-15.5 Hydraulic Ram Replacement, Model 204-050-200-5 (AVUM) - Continued
WARNING
Operator injury or death and equipment damage may occur if the clevis pin mandatory
configuration is not implemented. Mandatory configuration requires one washer (7) under head of
clevis pin (8) and one on other end of clevis pin (8), between clevis and cotter pin (6). A fracture or
stress of clevis pin may occur under hoses helical weighted load.
8.
Connect ram clevis (10) to arm on axle (5) as follows:
a.
Install a washer (7) on head end of clevis pin (8).
b.
Insert clevis pin (8) through holes in clevis (10) and clevis arm of axle (5).
c.
Install washer (7) and cotter pin (6) on clevis pin (8).
d.
Install lubrication fitting (18) in clevis pin (8), unless already Installed.
e.
Repeat steps 8a thru 8d for other axle, if necessary.
9.
Install elbow fitting (16) in replacement ram assembly (11), using Teflon Tape (item 8, Appendix D).
10.
Connect hose assembly (15) to elbow (16) installed in ram assembly (11) and tighten.
11.
Install Wheel assembly.
a.
Install wheel assembly (4) on axle hub (5).
b.
Install retainer (3) and castle nut (2).
c.
Install cotter pin (1).
NOTE
Ensure freedom of hose movement throughout full travel of rams and axles, without rubbing on
wheel tire. If any interference with movement occurs, reconfigure hose routing to alleviate the
problem.
12.
Perform service fill and bleed procedure in C below.
C. SERVICE
Refer to figure 3-7 and perform fill and bleed procedure of hydraulic system as follows:
1.
Loosen flared fitting nuts on both hoses (15) at tee
2.
Rotate axles until hydraulic rams (11) are fully retracted.
3.
Tighten flared fitting nuts on both hoses (15) at tee and check fluid level in pump.
4.
Refill pump with fluid if necessary, and install cap.
5.
Rotate the pump release valve knob clockwise to close valve.
6.
Activate pump until axles are fully extended, ensuring freedom of hoses movement without
rubbing.
7.
Release hydraulic pressure from system by rapidly rotating the pump release valve knob
counterclockwise.
8.
Rotate axles until the hydraulic rams are fully retracted and recheck fluid level in pump.
9.
If fluid level is incorrect, repeat steps 1 through 8; if correct, install cap and procedure is
completed.
END OF TASK
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