Section XIII
CLUTCH
| Paragraph | |
|---|---|
| Description | [47] |
| Maintenance and adjustment | [48] |
| Removal of disks | [49] |
| Inspection of disks and springs | [50] |
| Installation of disks | [51] |
| Replacement of clutch release bearing | [52] |
47. DESCRIPTION ([fig. 21]).
a. Clutch is of simple multiple‐dry‐disk type, having two steel disks and three lined disks, one of which provides spring action within disk pack to “cushion” clutch operation.
48. MAINTENANCE AND ADJUSTMENT (figs. [22], [23], [24], and [25]).
a. If clutch adjustment is correctly maintained, clutch will cause very little trouble. Ease of gear shifting and service life of transmission gear shifter clutch dogs depend largely upon full disengagement of the clutch. Clutch adjustment is in two parts; namely, control linkage and spring tension. Do not adjust clutch spring tension before correcting control adjustment.
b. Clutch Control Linkage ([fig. 22]). Operation of foot pedal, control cable, and clutch release lever actuates the push rod through hollow transmission shaft, disengaging or engaging clutch at will. Correct adjustment to control cable and release lever must be made before push rod adjustment is made.
c. Clutch Control Adjustment (figs. [23], [24], [25], and [26]).
(1) Adjusting Cable Length. With clutch in fully disengaged position (foot pedal heel down) the clutch release lever must clear the countershaft sprocket cover stud and/or nut by 1⁄16 inch. Should clutch release lever strike sprocket cover and nut, clutch push rod movement is restricted, and clutch cannot be fully disengaged. Length of control cable must be adjusted to obtain 1⁄16–inch clutch release lever and sprocket cover stud and/or nut clearance. To lengthen or shorten clutch control cable, cable adjustable end must be removed from foot pedal stud (figs. [23] and [24]). With foot pedal in forward (toe down) position, remove cotter pin and washer retaining cable end. Release other end of cable from notch in clutch release lever by pressing release lever inward and lifting cable end out of notch. Rock the foot pedal to rear (heel down) position and work cable adjustable end off foot pedal stud. Loosen lock nut and turn cable end to right (clockwise) to shorten cable; turn to left (counter‐clockwise) to lengthen cable. Tighten lock nut, install cable end on foot pedal stud; install washer and cotter pin, and install other end of cable in clutch release lever notch.