18
EXPLODED
VIEWS
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MAINTENANCE
PARTS
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PARTS
LIST
LEROY-SOMER
4031 - 03.2007 / c
5.4 - Torque point
Manubloc torque must be absorbed by an appropriate torque
arm (not supplied).
Too much play can produce dangerous shocks during
reverse operation or gear changes, flexible mountings are
therefore recommended: dampers in stressed rubber
(Silentbloc type).
The flat end of the housing has cross tapping for this type of
mounting according to the outline diagram. The other parts
are not supplied by Leroy-Somer.
5.5 - Shrink-disc
5.5.1 - Mounting
Remove all grease from shaft and hollow shaft bore.
1 -
Lightly oil the seating of the shrink-disc on the hollow
shaft.
2 -
Draw shrink-disc onto hollow shaft. Slide shaft and hollow
shaft into one another.
3 -
Tighten diametrically opposed clamping screws by hand
whilst aligning the shrink-disc so that the clamping flanges lie
parallel to each other.
Tighten the clamping screws one by one with a torque wrench
to tightening torque, indicated in the chart bellow.
Dismantling
1 -
Part-release the clamping screws evenly in stages in order
to avoid any tilting of the clamping flanges whilst taking great
care for safety reasons that the clamping screws are not
completely released from the thread bore as the pretensions
in the shrink-disc could cause the discs to jump apart.
2 -
Draw the shrink-disc off the hollow shaft, and if applicable,
clean oxidizing on shaft and hollow shaft bore.
5.5.2 - Shrink disc exploded view
5.5.3 - Shrink disc parts list
5.6 - Hollow shaft
1 -
Check that the cylindrical shaft has been machined in
accordance with standard NF - E 22 - 175, with a slide fit: g6,
(the hub is: H7).
2 -
Check that the key is standard and the shaft is the
minimum length tapped at the end.
3 -
Before mounting, degrease all the parts, taking care not to
splash any solvent on the seals.
Use grease (PAO compound) to lubricate any parts in
contact, to avoid corrosion.
Fixing on a shouldered shaft: Fixing on an untapped shaft:
Mounting
Mounting should be performed as described in the procedure
above, without jolting.
The Mub gearbox is mounted on the machine shaft using a
threaded rod, screwed into the shaft.
By screwing the nut down onto the washer, the shaft is
smoothly inserted into the cylindrical hub.
Dismantling
Use a spanner with a diameter corresponding to the shaft thread
and turn until the shaft comes out.
Dimensions (mm)
Mub 32xx
Mub 33xx
Mub 34xx
Mub 35xx
YA
24
22
28
35
YB
37
43
55
44
YC
23
32
32
42
YR
19
20
35
20
Flexible
mounting
(Silentbloc)
Ø internal
14
14
22
22
Ø external
40
40
60
60
thickness
15
15
30
30
Mub 35
Mub 34
Mub 33
Mub 32
Tightening torque for bolts of
shrink-disc
30
30
12
12
Flexible mounting
(Silentbloc)
YA
YB
YC
YR
Mub 32xx
Mub 33xx
Mub 34xx
Mub 35xx
Rep
Description
Qty
Qty
Qty
Qty
16
Shrink disc cover
1
1
1
1
204 Cover fixing screw
(Rep 12)
2
2
2
2
302 Shrink disc
1
1
1
1
4
302
204
16
O ring seal
O ring seal
O ring seal
O ring seal