Rexnord
3001 W. Canal St., Milwaukee, WI 53208-4200
Telephone: 414-342-3131 Fax: 414-937-4359 www.rexnord.com
178-810
July 2015
Falk V-Class
TM
• Bucket Elevator Inching Drive • Installation, Operation & Maintenance Manual
Type VR Series • Sizes M107 thru M227
(Page 9 of 12)
INCHING DRIVE DISASSEMBLY
The inching drive can be disassembled by following
the steps outlined below. Refer to Figure 18 for an
illustration of the components.
1.
Drain oil from inching drive clutch housing
and V-Class reducer.
2.
The inching motor may be removed to
facilitate disassembly of the Ultramite by
removing the mounting fasteners.
3.
With Ultramite reducer properly supported,
remove the bolts that secure the Ultramite to
the clutch housing. To prevent damage to
the clutch do not allow the Ultramite
gearbox to hang at an angle while sliding the
Ultramite reducer off.
4.
If necessary, remove the clutch outer
element by removing the mounting bolts.
5.
If necessary, remove the clutch hub by first
removing the two (2) setscrews. The clutch
hub can then slide off.
6.
Before removing the inner element of the
overrunning clutch, the snap ring must first
be removed from the V-Class shaft. The
inner element of the overrunning clutch may
require the use of a wheel puller to remove it
from the shaft. The tapped holes in the
clutch should be used for removal to prevent
damage to the sprag cage or sprags.
7.
Only if necessary, remove the clutch
housing from the V-Class reducer by
removing the mounting bolts.
CAUTION: Since the clutch housing is
used to set the bearing float in the V-Class
reducer, removal is only recommended
when servicing the V-Class reducer. A
Rexnord factory service representative will
be required when reassembling the clutch
housing to verify the V-Class reducer has
the proper bearing float and bevel gear
contact.
8.
Thoroughly clean all surfaces on the clutch
housing and the Ultramite flange to remove
any gasket eliminator before reassembling.
INCHING DRIVE ASSEMBLY
The inching drive assembly consists of an Ultramite
UB drive with output flange, Ultramite output shaft,
inching drive motor, clutch hub, overrunning clutch
and clutch housing. These components are shown
below in Figure 18.
Figure 18 – Inching drive assembly
Ultramite UB Assembly
The Ultramite UB is supplied from the factory with
flange sealant applied to the output flange when it is
mounted to the Ultramite. If the output flange is ever
removed from the Ultramite, flange sealant will need
to be applied to a clean surface before remounting it
to the Ultramite.
Insert the snap ring into the Ultramite hollow shaft on
the side opposite the output flange. Install the keys in
the keyways of the Ultramite output shaft. Apply a
continuous bead of flange sealant (Loctite 515 or
equivalent) to the Ultramite drive side of the flange
on the output shaft as shown in Figure 19. Slide the
output shaft into the Ultramite drive hollow shaft.
Apply Loctite 242 or equivalent to the cap screw and
using the keeper plate, secure the output shaft.
Tighten cap screw to torque value specified in Table
2. Apply Permatex sealant to the bore plug and
install into the Ultramite housing to cover the output
shaft.
Figure 19 – Ultramite UB components
