LEROY-SOMER
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.
Flexible mounting
(Silentbloc)
YB
YR
Dimensions (mm)
Mub 32xx
YA
24
YB
37
YC
23
YR
19
Flexible
Ø internal
14
mounting
Ø external
40
(Silentbloc)
thickness
15
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.
Mub 35
Tightening torque for bolts of
shrink-disc
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.
18
INSTALLATION AND MAINTENANCE
MANUBLOC 3000
Drive systems
-
EXPLODED VIEWS
YA
Mub 33xx
Mub 34xx
Mub 35xx
22
28
35
43
55
44
32
32
42
20
35
20
14
22
22
40
60
60
15
30
30
Mub 34
Mub 33
Mub 32
30
30
12
12
-
MAINTENANCE PARTS
PARTS LIST
5.5.2 - Shrink disc exploded view
5.5.3 - Shrink disc parts list
Rep
Description
16
Shrink disc cover
Cover fixing screw
204
(Rep 12)
302 Shrink disc
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:
O ring seal
Mounting
O ring seal
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
O ring seal
Use a spanner with a diameter corresponding to the shaft thread
and turn until the shaft comes out.
4031 - 03.2007 / c
4
204
16
302
Mub 32xx
Mub 33xx
Mub 34xx
Qty
Qty
1
1
2
2
1
1
Fixing on an untapped shaft:
O ring seal
Mub 35xx
Qty
Qty
1
1
2
2
1
1