CLUTCH
L3301, L3901, L4701, WSM
2-S24
[2] DUAL STAGE CLUTCH
Backlash between Clutch Disc Boss and Shaft
1. Mount the PTO clutch disc to the 16T gear shaft.
2. Hold the gear 16T gear shaft so that it does not turn.
3. Rotate disc lightly and measure the displacement around the
disc edge.
4. If the measurement exceeds the allowable limit, replace.
5. Perform measurement for the traveling clutch disc and the main
shaft in the same way as a above.
9Y1211012CLS0021US0
Pressure Plate Flatness
1. Place a straightedge on the pressure plate and measure
clearance with a feeler gauge at several points.
2. If the clearance exceeds the allowable limit, replace it.
3. When the pressure plate is worn around its outside and its
inside surface only is in contact with the straightedge, replace
even if the clearance is within the allowable limit.
9Y1211012CLS0022US0
Belleville Spring Free Height
1. Put the belleville spring on the surface plate.
2. Place a straightedge on the belleville spring and measure the
free height.
3. If the measurement is less than the allowable limit, replace.
4. Check for cracks, if problems are found, replace.
9Y1211012CLS0023US0
Mutual DIfference of Release Lever
1. Insert the dual stage clutch exclusive tool (Code No,
07916-90052).
2. Measure the clearance between gauge ring and the top of
adjusting screw with a feeler gauge.
3. If the clearance is not within the factory specifications, adjust
with the adjusting screws.
9Y1211012CLS0024US0
Backlash
(Displacement around
disc edge (PTO))
Allowable limit
2.0 mm
0.079 in.
Backlash
(Displacement around
disc edge (Travelling))
Allowable limit
2.0 mm
0.079 in.
Clearance between
pressure plate and
straightedge
Allowable limit
2.0 mm
0.008 in.
A: Inside B: Outside
Belleville spring free
height
Factory specification
7.24 mm
0.285 in.
Allowable limit
6.76 mm
0.266 in.
Mutual difference of
release lever
Factory specification
0 to 0.2 mm
0 to 0.008 in.
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