| Tweet |
Custom Search
|
|
|
||
 TM 55-1905-223-24-5
REPAIR
a.
Visually inspect for damage or scrubbing of parts due to misalignment between the engine and the
friction clutch assembly.
b.
Replace bearings (48, 60) and cups (47, 61) in the housing. Ensure proper alignment of parts between
the engine and the friction clutch assembly on reinstallation.
c.
Check all parts of the PTO unit. Replace internal gear (1) and annular Ball Bearing (2).
ASSEMBLY (Refer to FIGURE 4-25)
NOTE
Torque values given in these procedures are for clean, oiled
thread conditions. See Torque Value Tables 3-5 for Capscrews,
Bolts, and Nuts; 3-6 for Tapered Plugs; and 3-7 for Tube and
Hose Fittings.
a.
Install the two 1/4-inch hydraulic (grease) fittings (31, 27).
b.
Set the clutch housing (32) on a bench with the clutch end facing up. Install the operating shaft (56)
halfway into the clutch housing (32). Slip the throwout yoke (44) onto the operating shaft (56), and
push the shaft (56) through the opening on the other side of the clutch housing (32). Install one
woodruff key (58) in the operating shaft (56). Slightly move the throwout yoke (44) on the operating
shaft (56) and install the other key (58). Install two hexhead 3/8-16 x 1-1/2 capscrews (46) and the 3/8-
inch lockwashers (45) to secure the throwout yoke (44) to the shaft (56). Tighten capscrews (46) to 38
ft-lb. torque.
c.
Install and secure the hand lever (57) to the operating shaft (56) with a hexhead 1/2-13 x 1-3/4
capscrew (55). Tighten the capscrew (55) to 85 ft-lb torque.
d.
Use an arbor press and install the two bearing cones (48 and 60) on the clutch shaft (54), one from
each end with their back faces butting against the stop shoulder on the shaft (54).
e.
Press bearing cup (47) into the bearing carrier (28), back face of the cup rearward. Press cup (47) to
bottom of bore.
f.
Press bearings (48, 60) onto each end of shaft (54).
g.
Set the bearing carrier (28) in a large bench vise with the clutch end facing up. Grip the casting with
the vise jaws below the mounting flange. Install the clutch shaft (54), with bearing cones (48, 60), into
the bearing cup (61) over the clutch shaft (54) and into the bearing carrier. Tap or press the cup (61)
into position. Install the bearing retainer (26) into the bearing carrier (28) against the bearing cup (61).
4-55
|
||
|
||
