Bosch VLE 21 Series, Repair Instructions

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1 689 975 224 2013-11-06
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Robert Bosch GmbH
Loadbearing nut | VLE 21xx | 31 en
3. Loadbearing nut
3.2.1 Checking for wear
Contents Checking loadbearing nut for wear
Applicability VLE 2130, VLE 2130 F, VLE 2130 E,
VLE 2130 EL, VLE 2140 EL
Special tools and
other items
Test nut "trapezoidal thread Tr45x6"
Special accessory with order no.:
R
1 692 872 242 (VLE 2130, VLE 2130
F, VLE 2130 EL, VLE 2140 EL)
R 1 692 872 302 (VLE 2130 E)
Proceed as follows to make sure loadbearing nut wear
is discovered in good time:
1. Remove the securing strap until the loadbearing nut
in the lifting carriage is visible.
2. Use the appropriate lever to press the lifting carriage
upwards and hold in this position.
3. Place the test nut on the spindle and turn anti-
clockwise until it is resting on the loadbearing nut.
4. Lower the lifting carriage again.
5. Use a feeler gauge or vernier caliper to measure the
gap produced between the loadbearing nut and the
test nut.
Fig. 3: Nuts on spindle
1 Test nut
2 Loadbearing nut
3 Checking clearance (max. 1 mm)
!
The loadbearing nut has to be replaced if the
clearance is more than
1 mm .
3.2.2 Nut replacement (VLE 2130 E)
Contents Replacing loadbearing nut
Applicability VLE 2130 E
On nut replacement, make sure the distance between
the bottom edge of the lifting carriage and the bottom
edge of the safety nut is
30+1 mm .
Fig. 4: Nut replacement
1 Bottom edge of safety nut
2 Bottom edge of lifting carriage
3.2.3 Nut replacement (other types)
Contents Replacing loadbearing nut
Applicability VLE 2130, VLE 2130 F, VLE 2130 EL,
VLE 2140 EL
On these lifting platforms the safety nut is fitted flush
in the lifting carriage. On nut replacement, make sure
the distance between the bottom edge of the lifting
carriage and the bottom edge of the safety nut is
0+3 mm .
Fig. 5: Nut replacement
1 Bottom edge of safety nut
2 Bottom edge of lifting carriage