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Rexnord Falk V-Class VR Installation, Operation & Maintenance Manual

Bucket elevator inching drive
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Falk V-Class
Type VR Series • Sizes M107 thru M227
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   o f   C ontents  
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  
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
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.
Rexnord
3001 W. Canal St., Milwaukee, WI 53208-4200
Telephone: 414-342-3131 Fax: 414-937-4359 www.rexnord.com
TM
• Bucket Elevator Inching Drive • Installation, Operation & Maintenance Manual
 
®
drive
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   S witch   I nstallation  
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.
(Page 1 of 12)
178-810
July 2015

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Summary of Contents for Rexnord Falk V-Class VR

  • Page 1: Table Of Contents

    Oil Level, Ultramite UB ........4   OPERATION ............. 4   INSTALLATION   MAINTENANCE ............8   Rexnord highly recommends the use of a speed INCHING DRIVE DISASSEMBLY ......9   sensor as a safety device to protect against back INCHING DRIVE ASSEMBLY ....... 9  ...
  • Page 2   LATCH,   L OW   S PEED   O PERATE,   O VERSPEED   D ROPOUT   Rexnord’s over-speed protection system includes the Pushing the start button energizes and latches the relay and starts the following components: speed switch (either model machine.

  • Page 3: Oil Level, V-Class

    133   -­‐   1 57 inching drive, it will have the proper air gap already 1.50 5.68 set. If Rexnord’s magnetic pickup is mounted in the 163   -­‐   1 87 2.00 7.57 field, refer to the Inching Drive Assembly section for 193  ...

  • Page 4: Oil Level, Ultramite Ub

    ½ turn. Reset the relay and make sure the inching drive speed does not trip the switch. The PRS1 speed switch supplied from Rexnord can either detect speed ranges of 6-60 rpm or 60- 600 rpm. For Ultramite output shafts rotating at normal Figure 9 –...
  • Page 5 Step 1: Set operating mode to “Overspeed latched trip, release only after alarm reset pulled to common” (setting no. 2). Figure 11 – Operating Mode Rexnord 178-810 3001 W. Canal St., Milwaukee, WI 53208-4200 July 2015 Telephone: 414-342-3131 Fax: 414-937-4359 www.rexnord.com...
  • Page 6 Step 3: Set trip frequency using rotary switch (required only if step 2 was not completed). Figure 13 – Set trip frequency with rotary switch Rexnord 178-810 3001 W. Canal St., Milwaukee, WI 53208-4200 July 2015 Telephone: 414-342-3131 Fax: 414-937-4359 www.rexnord.com...
  • Page 7 Figure 14 – Set minimum response time Step 5: Use setting number 5 (5.0%) to account for any variation in motor speed. Figure 15 – Set relay trip point (offset) Rexnord 178-810 3001 W. Canal St., Milwaukee, WI 53208-4200 July 2015 Telephone: 414-342-3131 Fax: 414-937-4359 www.rexnord.com...

  • Page 8: Maintenance

    Figure 17 – Oil drain locations Rexnord 178-810 3001 W. Canal St., Milwaukee, WI 53208-4200 July 2015 Telephone: 414-342-3131 Fax: 414-937-4359 www.rexnord.com...

  • Page 9: Inching Drive Disassembly

    Ultramite drive hollow shaft. when servicing the V-Class reducer. A Apply Loctite 242 or equivalent to the cap screw and Rexnord factory service representative will using the keeper plate, secure the output shaft. be required when reassembling the clutch...

  • Page 10: Mounting Clutch Hub

    170-­‐63 0.34 Tighten fasteners to specified torque values given in 170-­‐63 0.34 213-­‐227 Table 2. 200-­‐63 16.8 0.67 Table 4 – Target mounting distance Rexnord 178-810 3001 W. Canal St., Milwaukee, WI 53208-4200 July 2015 Telephone: 414-342-3131 Fax: 414-937-4359 www.rexnord.com...

  • Page 11: Overrunning Clutch & Clutch Housing

    If the magnetic pickup Install the retaining ring for the clutch. Place an O- is not purchased from Rexnord, the pipe plug will ring or wire tie around the clutch inner element to have to be machined to accommodate a customer’s hold the clutch sprags down, which will facilitate speed sensor.
  • Page 12 Figure 22 – Magnetic pickup wiring and dimensions Figure 23 – Air gap between magnetic pickup and target The magnetic pickup available from Rexnord or other magnetic pickups can be installed by completing the Before operating the equipment, complete the following steps.

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