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 1 of 12)
How to use the manual
This manual provides detailed instructions on the
installation, operation and maintenance of V-Class
right angle type VR gear drives equipped with an
inching drive, for bucket elevator applications. Use
the table of contents below to locate required
information.
CAREFULLY FOLLOW THE INSTRUCTIONS IN
THIS MANUAL FOR OPTIMUM PERFORMANCE
AND TROUBLE-FREE SERVICE OF YOUR FALK
GEAR DRIVE.
Table of Contents
INTRODUCTION ..................................................... 1
INSTALLATION ...................................................... 1
Speed Switch Installation ..................................... 1
Oil Level, V-Class ................................................ 3
Oil Level, Ultramite UB ....................................... 4
OPERATION ............................................................. 4
MAINTENANCE ...................................................... 8
INCHING DRIVE DISASSEMBLY ........................ 9
INCHING DRIVE ASSEMBLY ............................... 9
Ultramite UB Assembly ....................................... 9
Mounting Clutch Hub ......................................... 10
Overrunning Clutch & Clutch Housing .............. 11
Mounting Ultramite to Clutch Housing .............. 11
Mounting Inching Motor .................................... 11
Magnetic Pickup (Speed Sensor) ........................ 11
INTRODUCTION
The Bucket Elevator Inching Drive consists of a
right-angle V-Class drive with either a hollow or
solid low speed shaft with an Ultramite
®
drive
mounted as the inching drive. The connection of the
inching drive is with an overrunning clutch in an oil
bath. A typical bucket elevator inching drive is
shown in Figure 1.
Instructions in this manual apply to drive sizes M127
thru M187 with a mounted inching drive designed for
bucket elevator applications. See Owners manual
178-052 for additional V-Class installation and
maintenance information. Ultramite installation &
maintenance instructions can be found in manual
288-400.
Figure 1 – Bucket elevator inching drive
INSTALLATION
Rexnord highly recommends the use of a speed
sensor as a safety device to protect against back
driving the inching drive. The installation steps in
this section apply to the speed switch that is available
from Rexnord.
Speed Switch Installation
A speed switch is a safety device used to stop
operation in the event of a back driven event. If the
clutch locks, the inching drive will be back driven at
dangerous speeds. The switch will detect these
speeds and send a signal to the customer’s interface
for it to shut down the main motor, preventing
damage and injury.
WARNING:
Switch off and lock out the main power
supply before installing, service or making
connections to the speed switch. Follow all local
electrical and safety codes, as well as the National
Electrical Code (NEC) and Occupational Safety and
Health Act (OSHA). Installation work and electrical
wiring must be done by qualified person(s) in
accordance with all applicable codes and standards.
