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 TM 55-1905-223-24-2
DISASSEMBLY
a. Unscrew check valve (30) from clutch cover (33).
b. Remove clutch cover attaching hardware.
(1) Remove assembled washer/screws (31) from ring spacer (32).
(2) Remove ring spacer (32).
(3) Remove capscrews (34) and return springs (35) from clutch cover (33).
(4) Remove hexagon screw (29), washer (28) and tightening sleeve (27) from clutch cover (33).
c.
Remove clutch cover.
WARNING
This procedure can be extremely dangerous
because of the explosive way the holding force is
released.
Only experienced soldiers should
perform this procedure.
WARNING
Do not exceed the allowed distance between the
hydraulic nut and the clutch cover. The explosive
force of the component when it breaks loose from
the taper could hit the nut with enough force to
cause severe damage and possible personal injury.
(1) Position hydraulic nut (FIGURE 4-3) to shaft (25) and thread to within 1-1/2 times the allowance number
stamped on the face of the clutch cover (33). This allowance is the distance the clutch cover was pressed on
the taper by the manufacturer. An increase in allowance is required now to allow the clutch cover to come off
the taper and not jam against the hydraulic nut. (The word "AUFSCHUBMASS" stamped above the number
means "allowance".)
EXAMPLE: If the allowance stamped on the clutch cover is 2mm, the hydraulic nut should be positioned up to
3mm from the clutch cover.
(2) Connect hydraulic pressure fittings as shown in FIGURE 4-3.
(3) Build up a push-on pressure (connection A, FIGURE 4-3) of approximately 1,470 psi.
48
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