Clutch 3
43
3 Backlash for Main Shaft Spline and Boss Spline
for Disc
1. If the spline of the main shaft and disc boss is worn
with step (from A to B as shown in the figure) and
exceeding the usable limit, change the main shaft
together with the clutch disc.
2. Measure the backlash using the line gauge.
(Unit: mm {in})
4 Release Shaft and Bush
Inspect the clearance between the release shaft and bush
and change the bush if exceeding the usable limit.
(Unit: mm {in})
5 Shaft and Bush
Inspect the clearance between mounting shaft for clutch
pedal (brake shaft) and inside diameter of the bush and
change the clutch pedal or brake shaft if exceeding the
usable limit.
(Unit: mm {in})
Item Referential Value
Usable
Limit
Backlash
0.05 to 0.15
{0.002 to 0.006}
0.3
{0.012}
Item Referential Value
Usable
Limit
Clearance bet. release
shaft and bush
0.04 to 0.12
{0.0016 to 0.005}
0.3
{0.0120}
Item Referential Value
Usable
Limit
Clearance bet. shaft
and bush
0.04 to 0.12
{0.0016 to 0.005}
0.5
{0.020}
Splineconvex
Wearwithstep
GS7W3-059
PR8W3-048
PR8W3-048
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K&T Saw Shop 606-678-9623 or 606-561-4983