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CLUTCH AND GEAR SHIFTER

Need for attention to clutch and Controls is indicated by clutch slipping under load or dragging in released position. In either case, the first thing to be checked is adjustment of Controls; this is the attention usually needed.

The first waming or indication of shifter Controls being out of correct adjustment is transmission "jumping" out of engagement when accelerating under heavy puli. This waming must not be disregarded.

Checking and Adjusting External

Shifter Controls

A.    See that control joints from transmission gear shifter lever (See Illustration 54, Page 69) to gear shifter hand lever (Detail 4, Page 9) are well oiled and free-working.

B.    Check handlever, center pivot bolt nut for tight-ness.

C.    Observe whether there is bincłing or inter-ference with shifter rod (Detail 31, Page 11) at any point in the shifting rangę; this is sometimes found as a result of bent rod.

D.    Check to determine whether or not shifter rod is correctly adjusted so that when handlever is moved to any gear position in tank shifter guide, transmission lever moves to just the right position to fully engage shifter clutch and shifter cam spring plunger (inside transmission).

E.    Readjust as follows: Set handlever in neutral position, disconnect shifter rod from handlever and, with slight backward and forward movement, care-fully "feel" transmission lever into* exact position where shifter cam spring plunger (inside transmission) seats fully in retaining notch. Next, see that handlever is in exact neutral position and readjust length of shifter rod so shifter rod end hole lines up with hole in handlever. Insert bolt and tighten nut. It is advisable to repeat this check in Iow and second gears to be surę of having best all-around adjustment.

Caution: Shifter Controls must be kept in correct adjustment; otherwise, driving dogs on shifter clutches will not fully engage in the different posi-tions and are likely to become damaged from jumping out of engagement under driving load.

When shifter clutćhes become worn or damaged to the extent of jumping out of engagement under driving load, even though shifter Controls are correctly adjusted, transmission must be serviced as explained under "Overhauling Transmission and Clutch," Page 66.

Adjusting Clutch Control

Refer to Illustration 11 and notę location of folio w-ing parts:

1.    Foot clutch cable tubę (felt oil washer in each end).

2.    Push rod adjusting screw.

3.    Push rod adjusting screw lock nut.

4.    Spring tension adjusting nuts (three).

5.    Spring tension adjusting nut łocks (three).

16. Footpedal.

21. Footpedal cable.

With footpedal (16) in fully disengaged position, clutch release lever (Detail 44, Page 12) must elear sprocket cover stud and nut by about Yt". This adjustment is attained by adjusting length of footpedal cable (21). With footpedal in fully engaged position, clutch release lever must have between Ve" and Vi" free movement on end of footpedal cable. If it has less than Vq", loosen adjusting screw lock nut (3) and tum adjusting screw (2) to the left to inerease amount of free movement. If it has morę than Vi", tum adjusting screw (2) to right to decrease amount of free movement. Tighten adjusting screw lock nut (3) securely.

Caution: If end of clutch release lever has no free movement as explained above, clutch will not hołd properly. If too much free movement is allowed, clutch will drag when in disengaged position and conseguently transmission will shift hard, clash and eventually become damaged.

Adjusting Clutch Spring Tension

(REFER TO ILLUSTRATIONS 11 AND 12)

If clutch slips after Controls have been correctly adjusted, inerease spring tension by tightening (tum right) the three nuts (4) after removing chain guard and bending away loeks (5).

Tighten all three nuts, one-half turn at a time, until clutch holds. Test after each half tum by cranking engine; usually a clutch that holds ‘ without any noticeable slippage when cranking engine also holds on the road.

Do not inerease spring tension any morę than actually reąuired to make clutch Lold. As a new clutch is originally a^sembled and adjusted, the distance from inner edge of shoulder on spring collar (6) to outer surface of outer disc (8) is 1^". In any case, do not tighten nuts (4) to the point where inner edge of shoulder on spring collar (6) is closer than Vb" to surface of outer disc (8). If compressed morę, clutch probably cannot be fully released.

(A nut on the end of clutch gear adjusts spring tension of the 1940 clutch. Thrust cap must be re-moved to expose adjusting nut. Normal adjustment— Y2" from face of spring collar to shoulder on thrust cap studs.)

If clutch stall does not hołd, after making surę of correct control adjustments and inereasing spring tension, it will have to be taken aport for inspection of dises and springs.

mus. 11

CLUTCH CONTROL ADJUSTMENTS

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