Rear View Of Tool A 137010 For Bevel Pinion And Gear Adjustment; Right View Of Tool A 137010 For Bevel Pinion And Gear Adjustment - Fiat 411 R Service Manual

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and gear adjustment.
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Fig. 'H3. - Right view of 'cool A €376€'0 for beyel pinion
and gear adjustment,
(2.362? to 2.342") the sun": of the gear width and the spacer width. Finally, check the shalt tor tree
rotation and mount in place of the foregoing shims others having their total thickness minus 6,05 mm
(0.G{J2"), which will set a 50 ltgimm (ill) lb} pre-load on the pinion bearings.
b) Remove the bevel pinion and mount the bevel gear complete with differential pinions and supports;
tighten one of the pinions with its screw and check with a teeter gauge, at the other support, the
overhaul thickness of the bevel roller bearing shim rings. Divide it by two placing each ct' the two
halves Rc on the two supports and check it rotation is tree but without end"piay.
c) For a correct tooth bearing (Fig. 111) pay attention, at pinion assembly, to the number stamped upon
the smaller base and marl-ted by -+~ or —~; this is C§Ul'E8* necessary to determine that thickness ot ring Rh,
which will be most tit to avoid noises during operation.
We suggest the following sequence:
»- mount the bevel pinion shaft titted with all its parts and with a ring Rb oi any thickness;
— mount on the casing the tool A 133110, according to Figs. 'E12 and 113;
—- rotate the tool shalt clockwise so that the eccentric zone contacts the pinion base, and read on
the quadrant graduated from 92 to 94 mm £3.62?' to 3.700") the value at which rotation stops. it this
value, indicated on the quadrant, exceeds the one calculated by adding or subtracting from the
theoretical distance existing between the pinion smaller base and the bevel gear axis (93 mm - 3.661")
the number marlzed on the pinion (not proceeded by any letter mark}, it will be necessary to replace'
ring Rb.
The ring to be mounted should have a thickness increased of an amount equal to the difference
between the two values.
On the contrary, it the value read on quadrant results less than the one read on the pinion after
adding or subtracting (accotding to the + or M sign) from 93 mm (3.6614"), the thickness Rb should
be decreased.
Reading on the fool quadrant 93.-1 mm
Measure read on the pinion ~{~ 0.2 mm
Example No. 7.
Distance between pinion and bevel gear:
93 + 0.2 = 93. 2 mm ($6614 -i— 0.0978 = 3.5692")
The ring Rb should be 0,2 mm thicker than the one
installed, calculated by subtracting 93.4-93.2=
0,2 mm in order to set the pinion at a distance of
93.2 mm according to the indication marked on ii.
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