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 TM 55-1905-217-34
c. Cleaning, Inspection, and Repair.
(1) Clean all parts with solvent (FED. SPEC. PD-680) and dry thoroughly.
(2) Examine the piston rod, (32, fig. 4-25) for scoring. Mild scores or nicks can be removed by light stoning.
(3) Examine all parts for wear or damage.
(4) Replace all seals and packings.
d. Reassembly. Refer to figure 4-25 and reassemble the steering cylinders.
e. Installation. Install the steering cylinders (TM 55-1905-217-12, para 4-79).
4-13. Helm Control Unit
a. Removal. Remove the helm control unit (TM 55-1905-217-12, para 4-82).
b. Disassembly.
(1) If there is a functional problem or leakage at the control section (fig. 4-26) only, the disassembly of the control
end of the unit only will be required. For this type of repair, leave the 7-bolted end assembled.
Figure 4-26. Helm unit assembly.
4-41
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