Epicyclic Reduction Components; Rods And Forks For The Gear Control; Mounting The Primary Shaft Front Cover Using Tool A 137003 - Fiat 411 R Service Manual

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Fig. 'E01. - Epicyciic reductiun components.
(Note: Skirting from chassis No. 427935 up helical teeth have been superseded by straight teeth).
Epfcyciical reduction gear (Fig. 191}.
Primary shaft.
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Rods and forks for the gear contra! (Fig. 95).
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Fig. 'I63. - Orientafion of the various spring pin cuts with
reference io direction of force (F) or of rotation.
Gearbox cover with control lever (Fig. 93}.
62
Assemble the epicyclic reduction gear c0m,00fl8niS
according to Fig. 101.
Mount on the gearbox the primary shafi rear bearing
{6} and fasten by its pin (V), the inner thrust disc
(14), having its lubrication passages Iocéied as in
Fig. 99.
Mount on shaff front end the bearing, the oil baffle
and the efasiic rings;
slide-in the shafi from the case front side and fit
on it the first, second and third speed gears;
mount the primary and secondary shafts front Covers
and their gaskeis.
When mounting the first cover, slide if on fixture
A 137003 which avoids the oil sea! gasket being
damaged by the primary shaft splines Confacf
(Fig. 102).
Fig. 102. - Mounting ihe primary shaft front cover using
too? A 137803.
Introduce through the gearbox wall holes the three
detenf springs and mount the ball and the first
gear shifter rod with its spacer and fork;
introduce through the waif middfe no/e ihe two
epfcyciic reduction gear control roe' check belfs (see
diagram C-C, Fig. 106) and compleie the assembfy by
infroducing {he two balls from the reievamf hole and
rnoum.' ihe rod, ine spacer and fork aciuaiing the
second and the third gears.
Note. - The cuts of the p:'ns fastening forks io
rods should be oriented so thaf the strain expand ihe
pins in their holes (Fig. 183).
Mount the lever and the two dowels in the cover
and add the cap and snap ring;
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