Flexible Coupling Between Clutch Shaft And Gearbox; Clutch Components: Specifications, Assembly Clearances And Permissible Wear - Fiat 411 R Service Manual

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FLEXIBLE COUPLING BETWEEN CLUTCH SHAFT AND GEARBOX
Noisy transmission.
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Fig. 52. - Diagram of flexible tolxpfing for clutch-gearbox
' shafts.
CLUTCH COMPONENTS: SPECIFICATEONS, ASSEMBLY CLEARANCES
Calls for the dismantling of the elastic coupling to
check the rubber block e;'i'7ciancy,' if blocks have
excesslve wear, replace them.
When reassembling ascertain the correct function-
ing by locating coupling and shaft splines correctly
according ihe drawing of Fig. 92, in addition iighien
the fastening bolts of {he flanges to a torque of
2,5 kgm (18 ff./la).
AN D PERM1SS1BLE WEAR
. Wear iimits
I e ce mm .
Assemby cl aran s In mm m,
Between wheel drive splinad shaft and its disc
Between powe: take-off clutch spiined shaft
and its disc . , . . . . . . . . . . . . . .
Between wheei""drive shfiaftvspline flanks and
€1exib!ejoim': collar . . . . . . . . . . . . .
Setween disengagement lever bushes and their
glns . . . . . . ._ . . . . . . , . . . . . .
Between shaft and ciuich throw-out collar .
0,010 to 0,105 0.0004 to 0.0042
0,013 To 0,115 0.0005 to 0.0045
-0,024 '£0 -0,072 -0.0809 in -0.0028
0,613 to 0,064 CLOUDS to l3.fiG25
0,930 to 0,145 0.8912 to 0.005?
0,35
0,35
0.20
0,30
0,30
0.6138
0.0138
0.0079
0.0113
0.9118
Clutch driven disc thickness (wheel drive and
power take-off), complete whh friction fining
B,6
0.3386 T
0.2755
Tightening torque for flexibie coupling flange
nuts (Fig. 92) . . . . . . . . . . . . . . .
2.5 kgm 18 ft.Ib
Clutch spring speciiiazafions
Spring free length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65.? mm (26024 in)
Spring {ength under check load . , . . . . . . . . , . . . . . . . . . . . 45.2 mm (£3795 in)
Check load . . - . . . . . . . . . . . . . . . . . . . . . . 112,810 124,6 kg (248.7 to 2':'4',7 lb)
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