Rexnord Falk Quadrive A User manual

Falk®Quadrive®Shaft Mounted Drives Model A • Owners Manual
Sizes 5107-5315 (Page 1 of 52)
Rexnord (PN-2128394) 378-200
3001 W. Canal St., Milwaukee, WI 53208-4200 USA January 2019
Telephone: [phone] Fax: [phone] www.rexnord.com Supersedes 04-17
TABLE OF CONTENTS
Introduction 2
Drive Identification 3
SECTION I — DRIVE INSTALLATION
Outfitting 4
Installation 7
Lubrication 9
Start-up 9
SECTION II — DRIVE SERVICE & REPAIR
Preventive Maintenance . . . . . . . . . . . . . . . . . 10
Oil Changes . . . . . . . . . . . . . . . . . . . . . . . 10
Stored & Inactive Drives . . . . . . . . . . . . . . . . . 10
Repair & Replacement . . . . . . . . . . . . . . . . . . 10
Drive Disassembly . . . . . . . . . . . . . . . . . . . . 12
Identifying & Ordering Parts . . . . . . . . . . . . . . . 14
Recommended Spare Parts . . . . . . . . . . . . . . . 14
Parts List of Falk Part Numbers . . . . . . . . . . . . . 16
Bearing Cross Reference Numbers . . . . . . . . . . . 17
Seal Cross Reference Numbers . . . . . . . . . . . . . 17
SECTION III — DRIVE REASSEMBLY
Drive Reassembly . . . . . . . . . . . . . . . . . . . . 18
APPENDICES
Appendix A: Lubrication Recommendations . . . . . . 23
Appendix B: Backstop Installation. . . . . . . . . . . . 32
Appendix C: TA Removal Tool . . . . . . . . . . . . . . 34
Appendix D: Motor Mount Installation . . . . . . . . . . 36
Appendix E: Vertical Standpipe Installation . . . . . . . 38
Appendix F: Modifications for Non-Standard
Mounting Positions. . . . . . . . . . . . . 40
Appendix G: Retaining Rings for Bushing Nuts and
Thrust Plates, Tooth Combinations for
Vibration Analysis & JSC Lip Seal
Accessory . . . . . . . . . . . . . . . . . 42
Appendix H: Drive Shaft Recommendations for
Tapered Drive Shafts . . . . . . . . . . . 43
Appendix J: Drive Shaft Recommendations Using
TA Taper Bushing . . . . . . . . . . . . . 41
Appendix K: Drive Shaft Recommendations Using
(TCB) Kit . . . . . . . . . . . . . . . . . . 46
Appendix L: V-Belt Guard Installation . . . . . . . . . . 48
Appendix M: Electric Fan Installation . . . . . . . . . . 51
Appendix N: Reliability Package . . . . . . . . . . . . . 52

Owners Manual • Falk Quadrive Shaft Mounted Drives Model A
(Page 2 of 52) Sizes 5107-5315
378-200 (PN-2128394) Rexnord
January 2019 3001 W. Canal St., Milwaukee, WI 53208-4200 USA
Supersedes 04-17 Telephone: [phone] Fax: [phone] www.rexnord.com
INTRODUCTION
WARRANTY — Rexnord Industries (the “Company”)
warrants that, for a period of three years from the
date of shipment, the product described herein will
deliver successfully its rated output as indicated on
the nameplate, provided it is properly installed and
maintained, correctly lubricated, and operated in the
environment and within the limits of speed, torque or other
load conditions for which it was sold. Such product is
expressly not warranted against failure or unsatisfactory
operation resulting from dynamic vibrations imposed
upon it by the drive system in which it is installed, unless
the nature of such vibrations has been fully defined
and expressly accepted in writing by the Company as a
condition of operation.
WARNING: Consult applicable local and national safety
codes for proper guarding of rotating members.
Lock out power source and remove all external loads from
drive before servicing drive or accessories.
CAUTION: Do not weld the drive housing or accessories
without prior approval from Rexnord Geared Products.
Welding on the drive may cause distortion of the housing
or damage to the bearings and gear teeth. Welding without
prior approval will void the warranty.
DRIVE RATING — Operate the drive only within the
horsepower and output speed for which it was selected
and specified in Selection Guide 371-110 for the
application. Refer to the nameplate for drive size, ratio and
data.
FALK FACTORY REPAIR AND REBUILD — Rexnord wants
to continue to be your primary supplier, and we extend our
service to you if your equipment is in need of repair or
replacement.
We are able to furnish a fast turnaround on both the
quotation and rebuild. Nobody can do the job better than
Rexnord. If you need repair on Rexnord products,
just ask.
Contact your local Rexnord Account Executive or distributor
for more information.

Falk Quadrive Shaft Mounted Drives Model A • Owners Manual
Sizes 5107-5315 (Page 3 of 52)
Rexnord (PN-2128394) 378-200
3001 W. Canal St., Milwaukee, WI 53208-4200 USA January 2019
Telephone: [phone] Fax: [phone] www.rexnord.com Supersedes 04-17
Basic “J”
(JR) Shaft-Mounted Drive
1) Basic Drive
2) Torque Arm
3) TA Taper Bushing
JF Flange Mounted Drive
1) Basic Drive
TA Taper Bushing Optional
JSC Screw Conveyor Drive
1) Basic Drive
2) Seal Housing
3) Drive Shaft
+ Motor Mounts
+ Backstops
+ Shaft Fans
(5215 thru 5315 only)
+ Electric Fans
(5307 & 5315 only)
+ Vertical Standpipe
NOTE: Use a TA Taper bushing when mounting these drives on a straight driven shaft (hollow shaft is taper bored).
+ Trough Ends
+ Thrust Plate Kits
+ V-Belt Guards
+ TA Removal Tool
J is the basic drive identification. It can be outfitted for use as a shaft-mounted drive JR; a flange-mounted drive JF; or a
screw conveyor drive JSC, as illustrated below. These unique identifiers, JR, JF & JSC, are used throughout this manual to
assist you in identifying the instructions which apply to your drive arrangement. The prefix “M” identifies a drive that features
a nominal metric high-speed shaft.
Drive Identification
Size (Series)
Maximum Bushing Bore (1 7/16”)
Drive Type
Ratio (Nominal 25:1) Model
5 107 J25 A

Owners Manual • Falk Quadrive Shaft Mounted Drives Model A
(Page 4 of 52) Sizes 5107-5315
378-200 (PN-2128394) Rexnord
January 2019 3001 W. Canal St., Milwaukee, WI 53208-4200 USA
Supersedes 04-17 Telephone: [phone] Fax: [phone] www.rexnord.com
Section I
DRIVE INSTALLATION
OUTFITTING
1. JR, JF, & JSC — Find the desired mounting position
in Figure 1 and install air vent and magnetic drain plug
(packaged separately with basic drive). Also note and/
or mark the oil level plug location OR in the case of a
vertical mounting, refer to Appendix E for installation
of vertical stand pipe. If the mounting angle exceeds
the limitations shown in Figure 1, refer to Appendix F
to determine modifications necessary within the limits
illustrated therein. DO NOT fill drive with lubricant at
this time. Oil plugs are located on input housing half.
2. JR — Remove anchor brackets, housing flange fasteners
and rod end fasteners from tie rod kit and assemble
to drive as illustrated in Figure 2. Refer to Table 1 for
tightening torque (original fasteners may be discarded).
FILL
DRAIN
OIL LEVEL
STANDPIPE &
VENTED DIPSTICK
FILL VENT &
STANDPIPE
INPUT SHAFT DOWN INPUT SHAFT UP
DRAIN
± 1° MAX
12 O’ CLOCK
D
L
F
F
L
D
3O’CLOCK
F
L
D
6O’CLOCK
F
L
D
9O’CLOCK
SIZES 5203 THRU 5315
5:1 RATIO ONLY: RELOCATE
AIRVENT ON OUTPUT SIDE
FOR 9 O’CLOCK MOUNTING
REPOSITION PLUGS TO
SUIT REQ’D MOUNTING
D = DRAIN
F = Fill & Vent
L = OIL LEVEL
(HIGHEST INPUT
SIDE PLUG)
10
MAX
°
5°
MAX
30 UP
(20° FOR
5315)
°
5DOWN°
INCLINE ROTATION
5°
MAX
10°
MAX
(5107&5115) (5203 THRU 5315)
0° Incline down on drives
with backstop in 9 or 12
o’clock mounting position.
HORIZONTAL DRIVESFigure 1
VERTICAL DRIVES
ANGULAR LIMITS FOR HORIZONTAL MOUNTING
(ALL CLOCK POSITIONS)
5107&5115 5203 THRU 5315
HOUSING FLANGE
FASTENERS
ANCHOR
BRACKET
TORQUE ARM
FASTENER
ALTERNATE
LOCATION
PREFERRED
LOCATION
Figure 2
TABLE 1 — Housing Flange Fastener Size
and Tightening Torque
(Non-Lubricated Fasteners)
DRIVE SIZE Fastener Size Tightening Torque lb-ft
(Nm)
5107 .312-18 19 (26)
5115 .312-18 19 (26)
5203 .375-16 28 (37)
5207 .500-13 69 (94)
5215 .500-13 69 (94)
5307 .500-13 69 (94)
5315 .500-13 69 (94)
3. JR — The tapered bore hollow shaft is designed for use
with a TA Taper bushing for mounting on a driven shaft with
a straight outside diameter. Shaft tolerances for the driven
shaft are given in Table 1A. The minimum and maximum
driven shaft engagements, dimension “N” in Figure 3, are
shown in Table 2. The minimum engagement is necessary
for full bushing engagement; the maximum engagement is
only required if a thrust plate will be employed to remove the
drive from the driven shaft (see Appendix C for preferred
removal method).
TABLE 1A — Driven Shaft Tolerances 
Shaft Diameter – Inches Maximum Under-size – Inches
Up to 1.500 .004
1.500 - 2.500 incl. .005
2.500 - 4.000 incl. .006
cMillimeters = h10 tolerance.
N
THRUST
PLATE
HOLLOW
SHAFT
COVER
HIGH-SPEED
SHAFT
SHEAVE
MINIMUM SPACE REQUIRED
FOR V-BELT CLEARANCE
TORQUE
ARM
CLEVIS
BRACKET
MINIMUM SPACE REQUIRED
DRIVEN
SHAFT
BUSHING
NUT
BEARING
SUPPORT
Figure 3

Falk Quadrive Shaft Mounted Drives Model A • Owners Manual
Sizes 5107-5315 (Page 5 of 52)
Rexnord (PN-2128394) 378-200
3001 W. Canal St., Milwaukee, WI 53208-4200 USA January 2019
Telephone: [phone] Fax: [phone] www.rexnord.com Supersedes 04-17
a. THIN WALL BUSHING (with keyway slot through
the bushing wall) — With the driven shaft keyway
at the 12 o’clock position, slide bushing assembly
onto the driven shaft, nut end first, and position
the keyway slot over the shaft keyway (the bushing
may have to be pried open slightly). Insert the
drive, key furnished with the bushing, into the
shaft keyway. Proceed to Step 7.
4107 and will employ a 2.437” (61.9 mm) or 3.000”
(76.2 mm) diameter drive shaft, place the (2) gaskets
and trough end spacer, packaged separately, over
the trough end surface of the seal housing, Figure 6.
Continue outfitting based on the type of trough end
seal to be installed: (a) Waste Packing Seal; (b) Lip
Seal or; (c) Packing Gland Seal.
TABLE 2 — N Dimension Inches (mm) 
DRIVE SIZE Minimum Maximum
5107 5.00 (127) 7.19 (183)
5115 5.55 (141) 8.05 (204)
5203 5.53 (140) 7.78 (198)
5207 6.11 (155) 8.72 (221)
5215 7.08 (180) 10.15 (258)
5307 7.39 (188) 10.69 (272)
5315 7.92 (201) 10.74 (273)
cThe minimum engagement is necessary for full bushing
engagement; the maximum engagement is only required if a
thrust plate will be++oyed to remove the drive from the driven
shaft.
b. THICK WALL BUSHING (with separate internal
and external keyways) — Insert the driven shaft
key into the driven shaft keyway. If the driven
shaft has an open-ended keyway, stake the
keyway, Figure 4, to prevent axial dislocation of
the shaft key under operating conditions. Slide
the bushing assembly onto the driven shaft (the
bushing may have to be pried open slightly).
Rotate the shaft so the external keyway in the
bushing is at the 12 o’clock position. Then insert
the drive key, furnished with the bushing, into
the keyway. Proceed to Step 7.
4. JSC — NOTE: See Appendix K for non-tapered
drive shafts. Remove the hollow shaft cover
from the input side of the hollow shaft bore and
save. Separate contents from the drive shaft
kit. Install thrust plate and retaining ring in the
hollow shaft, Figure 5. When the drive is a size
Figure 4
HOLLOW
SHAFT
RETAINING
RING
THRUST
PLATE
OUTPUT
SIDE
Figure 5
DRIVE SHAFT
DRIVESHAFT
MECHANICAL LIP SEAL
TROUGH END
GASKET
THROUGH END SPACER
(SIZE 5107 WITH 2.437” (61.9 mm)
& 3.000” (76.2 mm) DRIVE SHAFTS ONLY)
Figure 6
a. WASTE PACKING SEAL (Figure 7) — Slide drive
shaft thru seal housing. Insert key into drive shaft and
slide drive shaft into hollow shaft. The seal housing
registers into the basic drive seal bore. Install the drive
shaft thrust plate fastener thru thrust plate and torque
to the value specified in Table 3. Use the seal housing
fasteners to secure the seal housing to the basic drive
housing. Refer to Table 4 for proper torque value.
Reinstall hollow shaft cover. Pack seal housing with
waste packing and proceed to Step 5.
TABLE 3 — JR & JSC Thrust Plate Fastener
Data (Non-Lubricated Fasteners)
DRIVE
SIZE
Fastener Size
& Grade Torque lb-ft (Nm)
Min Thread
Depth Inches
(mm)
5107 .500-13UNC x 3.25, GR. 8 92 (125) 2.00 (50.8)
5115 .500-13UNC x 3.25, GR. 8 92 (125) 2.00 (50.8)
5203 .625-11UNC x 3.50, GR. 8 183 (248) 2.00 (50.8)
5207 .625-11UNC x 3.50, GR. 8 183 (248) 2.00 (50.8)
5215 .875-9UNC x 3.50, GR. 8 533 (723) 2.50 (63.5)
5307 1.00-8UNC x 4.00. GR. 5 567 (769) 2.75 (69.8)
5315 1.00-8UNC x 4.00. GR. 8 792 (1074) 2.75 (69.8)
cFastener lengths given are for applications using tapered drive shafts.
Other lengths may be needed for applications using tapered bushings.
1.00-8UNC x 3.50, GR. 5 for 5307JF.

Owners Manual • Falk Quadrive Shaft Mounted Drives Model A
(Page 6 of 52) Sizes 5107-5315
378-200 (PN-2128394) Rexnord
January 2019 3001 W. Canal St., Milwaukee, WI 53208-4200 USA
Supersedes 04-17 Telephone: [phone] Fax: [phone] www.rexnord.com
TROUGH END
TROUGH END
MOUNTING FASTENERS
DRIVE SHAFT
TROUGH END GASKET
SEAL HOUSING
INSERT
HOLLOW SHAFT COVER
SEAL HOUSING FASTENERS
WITH LOCK WASHERS
WASTE PACKING
BASIC DRIVE
DRIVE SHAFT KEY
THRUST PLATE
RETAINING RING
THRUST PLATE
DRIVE SHAFT THRUST
PLATE FASTENER
TABLE 4 — Seal Housing & Trough End
Fastener Size – UNC & Tightening
Torque (Non-Lubricated Fasteners)
Fastener
Location
DRIVE SIZE
5107 5115 5203 5207 5215 5307 5315
Seal Housing
Fasteners
lb-ft (Nm)
.500-13
69 (94)
.625-11
137 (186)
.750-10
245 (332)
.875-9
380 (515)
1.000-8
567 (769)
1.000-8
792 (1074)
1.000-8
792 (1074)
Trough End
Fasteners
lb-ft (Nm)
1.500” Diameter Drive Shaft
.500-13 Fasteners
69 (94)
2.000” & 2.437” Diameter Drive Shafts
.625-11 Fasteners with Nuts — 137 (186)
3.000” & 3.437” Diameter Drive Shafts
.750-10 Fasteners with Nuts — 245 (332)
Figure 7
b. LIP SEAL (Figure 8) — Coat outside diameter of
seal with Permatex #3 or equivalent. Drive seal into
seal housing with the spring-loaded seal lip away
from the driver. Wrap the keyway on tapered shank
of drive shaft with masking tape or lightweight Kraft
paper to protect against damaging the seal lips.
Coat the seal lips and straight portion of the drive
shaft with bearing grease. Line up the keyway in
the drive shaft with the hollow shaft keyway and
insert the drive shaft into the seal housing. Remove
the protective wrap and install the drive shaft key.
Insert the drive shaft into the hollow shaft. The seal
housing registers into the basic drive seal bore.
Use the thrust plate fastener, Figure 7, to secure the
drive shaft. Refer to Table 3 for proper torque value.
Install the seal housing fasteners to secure the
seal housing to the basic drive. Refer to Table 4 for
proper torque value. Reinstall hollow shaft cover and
proceed to Step 5.
SHAFT
BUTTJOINT
PACKINGGLANDROPE
CUT
PACKING GLAND RING
AFTER CUTTING
(TWO REQUIRED)
PACKING GLAND (TWO RINGS)
DRIVE SHAFT
TROUGH END
INSERT
COMPRESSION RING
COMPRESSION RING
FASTENER WITH
FLAT WASHER
Figure 8
Figure 9
Figure 10
c. PACKING GLAND SEAL (Figure 10) — First, wrap
the packing around the drive shaft adjacent to the
tapered portion of the drive shaft as shown in Figure
9. Cut the packing to produce two complete split
seal rings
CAUTION: Do not mar the shaft’s seal surface.
DRIVE SHAFT INSERT
TROUGH END
TROUGH END
MOUNTING FASTENERS
TROUGH END GASKETS
(SIZE 5107 WITH 2.437” &
3.000” DRIVE SHAFTS ONLY)
TROUGH END GASKET
SEAL HOUSING
MECHANICAL LIP SEAL
TROUGH END SPACER
(SIZE 5107 WITH 2.437” &
3.000” DRIVE SHAFTS ONLY)

Falk Quadrive Shaft Mounted Drives Model A • Owners Manual
Sizes 5107-5315 (Page 7 of 52)
Rexnord (PN-2128394) 378-200
3001 W. Canal St., Milwaukee, WI 53208-4200 USA January 2019
Telephone: [phone] Fax: [phone] www.rexnord.com Supersedes 04-17
Remove packing rings from the drive shaft and slide
the drive shaft through the seal housing. Install seal
rings into the seal housing. Stagger the seal joints
approximately 90° apart. Slip the compression ring
into place. Use fasteners with flat washers to hold the
ring but DO NOT tighten at this time. Install key in the
drive shaft keyway and then install the drive shaft into
the hollow shaft. Use the thrust plate fastener, Figure
7, to secure the drive shaft. Refer to Table 3 for torque
value. Use the seal housing fasteners to secure the
seal housing to the basic drive. Refer to Table 4 for the
torque value. Reinstall the hollow shaft cover. To adjust
packing seal, rotate input shaft to test the resistance.
Tighten the compression ring fasteners evenly until
an additional resistance can be detected when the
high-speed shaft is rotated. DO NOT OVERTIGHTEN
– this can cause premature seal wear and possible
overheating. Proceed to Step 5.
5. JSC — Fasten the trough end to the seal housing using
the hex head cap screws included in the drive shaft kit.
Refer to Table 4 for torque value. Proceed to Step 7.
6. JF — Install backstops prior to installation of the drive
(refer to Appendix B). If an adapter flange is provided,
assemble it to the drive using fasteners provided with
the flange. Refer to Table 5 for fastener selection and
torque value. Remove the input side hollow shaft cover.
The standard method for connecting a flange-mounted
drive to the driven shaft is to prepare the driven shaft
per Appendix H and mount the drive to the tapered
shaft using a thrust plate kit with fastener as shown in
Table 3. An optional method of connection should be
used when replacing existing drives with special shafts
or when producing tapered shafts is impractical.
This optional method uses a TA tapered bushing as
outlined in Appendix J.
SLING FROM
LONG FASTENER
WITH NUT
SLING AROUND
SEAL HOUSING
ANDINPUT SHAFT
SLING FROM
EYEBOLTS
TABLE 5 — Flange-Mounted Drive – Foundation
Fastener Size & Tightening
Torque (Non-Lubricated Fasteners)
DRIVE
SIZE Fastener Size and Grade
Torque
lb-ft
(Nm)
Min Fastener
Engagement
Into Drive
Housing
Inches (mm)
5107 .500-13UNC, GR.5 69 (94) .76 (19.3)
5115 .625-11UNC, GR.5 137 (186) .94 (23.9)
5203 .750-10UNC, GR.5 245 (332) .76 (19.3)
5207 .875-9UNC, GR.5 380 (515) .88 (22.4)
5215 1.000-8UNC, GR.5 567 (769) 1.00 (25.4)
5307 1.000-8UNC, GR.8 792 (1074) 1.24 (31.5)
5315 1.000-8UNC, GR.8 792 (1074) 1.24 (31.5)
INSTALLATION
7. JR, JF, & JSC — Refer to Figure 11 for recommended lifting
method. In order to sling JR & JF as illustrated, remove
a housing flange fastener and install a long fastener with
nut. For vertical installation, use (3) eye bolts as illustrated.
Eyebolt sizes are 5/16” for 4107 and 4115, 3/8” for 4203 and
1/2” for 4207 thru 4315. DO NOT remove sling until drive is
secured to shaft. Before lifting the drive into position, rotate
the high-speed shaft until the hollow shaft keyway will be in
position to line-up with the driven shaft key. JF proceed to
Step 12; JSC to Step 13.
8. JR — If the drive was received with a backstop
installed, the backstop must be temporarily removed to
facilitate mounting.
Refer to Section II, Figure 19 and remove cover Ref.
#16 and backstop Ref. #5A1.
9. JR — Lift the drive into position and slide onto the
drive shaft taking care that the driven shaft key seats
into the hollow shaft keyway. DO NOT hammer or use
excessive force. Refer to Figure 12 for installation of
the torque arm. The exact position of the tie rod may
vary within the range shown. For torque arm mountings
other than shown, refer to Rexnord. If it is necessary
to shorten the torque arm, cut the excess from either
threaded end.
The support to which the clevis bracket is to be
fastened must sustain the torque reaction shown
in Table 8. The maximum load reaction through the
torque arm occurs when the torque arm is located
in the extreme (30°) off angle position. Use Grade 5
fasteners to anchor the clevis bracket; see Table 7 for
the fastener diameter and tightening torque.
Bolt the tie rod to both the clevis bracket and the
drive anchor bracket and tighten the bolts until seated
against the brackets. DO NOT bend the bracket as
clearance between the clevis brackets and tie rod is
necessary.
Figure 11

Owners Manual • Falk Quadrive Shaft Mounted Drives Model A
(Page 8 of 52) Sizes 5107-5315
378-200 (PN-2128394) Rexnord
January 2019 3001 W. Canal St., Milwaukee, WI 53208-4200 USA
Supersedes 04-17 Telephone: [phone] Fax: [phone] www.rexnord.com
2°
30°
HOUSING FLANGE
FASTENERS
2°
30° MAX
ANCHOR BRACKET CLEVIS
BRACKET
5107 & 5115
HIGH-
SPEED
SHAFT
TORQUE ARM
FASTENER
MAX
2°
ANCHOR
BRACKET
HIGH-
SPEED
SHAFT
TORQUE ARM
FASTENER
5203 THRU 5315
PREFERRED MOUNTING
CLEVIS
BRACKET
30° MAX
2°
30°MAX
HIGH
SPEED
SHAFT
ANCHOR
BRACKET
TORQUE ARM
FASTENER
CLEVIS
BRACKET
5203 THRU 5315
ALTERNATE MOUNTING
-
TABLE 6 — Spanner Wrench Type &
Spanner Nut Tightening Torque
DRIVE
SIZE
Adjustable Hook Spanner Wrench Spanner Nut
Tightening Torque
lb-ft (Nm)
GearWrench Williams
5107 81856 (2" to 4-3/4") 474 83 (113)
5115 81856 (2" to 4-3/4") 474 83 (113)
5203 81856 (2" to 4-3/4") 474 167 (226)
5207 81857 (4-1/2" to 6-1/4") 474A 167 (226)
5215 81857 (4-1/2" to 6-1/4") 474A 250 (339)
5307 81857 (4-1/2" to 6-1/4") 474A 250 (339)
5315 81858 (6-1/8" to 8-3/4") 474B 250 (339)
TABLE 7 — Torque Arm Clevis Bracket
Fastener Tightening Torque
DRIVE
SIZE
Fastener 
Size
Tightening Torque – lb-ft (Nm)
Steel Foundation Concrete Foundation
5107 .375-16UNC 28 (38) 21 (28)
5115 .375-16UNC 28 (38) 21 (28)
5203 .500-13UNC 69 (94) 53 (72)
5207 .500-13UNC 69 (94) 53 (72)
5215 .625-11UNC 137 (186) 107 (145)
5307 .750-10UNC 245 (332) 191 (259)
5315 1.000-8UNC 567 (769) 467 (633)
cGrade 5 fasteners required.
Figure 12 TABLE 8 — Load Reaction Through Torque Arm
DRIVE
SIZE 5107 5115 5203 5207 5215 5307 5315
Load
lb (N) 2440
(10850)
3810
(16940)
4680
(20810)
6750
(27790)
9160
(40720)
12963
(57660)
15890
(70700)
cLoad includes moment due to motor and motor mount with torque arm at
maximum angle.
10. JR — Thread the bushing nut onto the hollow shaft
one to two turns. NOTE: The bushing nut threads
have been coated with an anti-seize compound at
the Factory. This compound should not be removed.
Before re-installing a previously used nut, re-coat the
nut threads only with an anti-seize compound.
Note: In extremely severe or corrosive environments,
additional anti-seize compound MUST be applied to
the threads of the TA bushing nut.
WARNING: DO NOT apply anti-seize or lubricant to bushing or
shaft surfaces. Use of anti-seize may prevent secure connection
of the drive to the shaft and cause the drive to move.
WARNING: Overtightening can fail the internal retaining
ring (see Appendix G, for listing of retaining rings).
a. PREFERRED METHOD — Use a spanner (Table 6),
chain or pipe wrench to tighten the bushing nut to
the torque value indicated in Table 6. Apply Loctite
243 or equivalent to threads of setscrew. Tighten
the setscrew on the bushing nut to torque value
indicated in Table 6A.
b. ALTERNATE METHOD — (To be used when torque
cannot be measured.) Use a spanner (Table 6),
chain or pipe wrench to tighten the bushing nut
just until the drive can no longer be moved by hand
axially on the driven shaft. Loosen nut ONLY until it
can be turned by hand but do not unseat the taper.
Retighten the nut hand tight. Now mark a spot on
the top of the driven shaft. Next mark a spot on
the bushing nut 180° from the driven shaft mark
(90°CCW for sizes 5107 & 5115). Use the spanner
wrench to tighten the nut CW one half turn until the
two marks are aligned (one quarter turn for sizes
5107 & 5115). Apply Loctite 243 or equivalent to
threads of setscrew. Tighten the setscrew on the
bushing nut to torque value indicated in Table 6A.
11. JR — Install backstop, motor mount, motor, sheaves
(mount sheaves as close to the drive and motor housing
as possible), belts and guard. Refer to Appendix D for
motor mount installation instructions. Proceed to Step 14.
12. JF (USING TAPERED DRIVE SHAFT) — Put key into
the driven shaft. Lift drive into position and slide onto
the driven shaft taking care that the driven shaft key
seats into the hollow shaft keyway. DO NOT hammer
or use excessive force. Secure the drive to the shaft
with the thrust plate fastener. Refer to Table 3 for
torque value. Reinstall the hollow shaft cover. Install
motor mount, motor, sheaves, belts and guard. Refer
to Appendix D for motor mount installation instructions.
Proceed to Step 15.
DO NOT apply ANTI-SEIZE
on these areas.
TABLE 6A — Bushing Nut Setscrew –
Tightening Torque
DRIVE SIZE Setscrew Size Tightening Torque lb-ft (Nm)
5107 .250-20 5 (7)
5115-5207 .312-18 11 (15)
5215-5315 .375-16 19 (26)

Falk Quadrive Shaft Mounted Drives Model A • Owners Manual
Sizes 5107-5315 (Page 9 of 52)
Rexnord (PN-2128394) 378-200
3001 W. Canal St., Milwaukee, WI 53208-4200 USA January 2019
Telephone: [phone] Fax: [phone] www.rexnord.com Supersedes 04-17
13. JSC — Assemble drive to trough and install drive shaft
coupling bolts per screw conveyor manufacturer’s
instructions. Install motor mount, motor, sheaves, belts
and guard. Refer to Appendix D for motor mount
installation instructions. Proceed to Step 15.
14. JR — When the torque arm turnbuckle is used for
belt tension adjustment, position the motor so that the
belt pull will be about 90° to a line through the drive
high-speed shaft and hollow shaft as shown in Figure
13. For drives where the motor is moved to adjust belt
tension, mount the motor slide base so that the belt
tension adjustment is approximately parallel to the belt
centers. Refer to Appendix D for instructions relative to
alignment of sheaves and belts.
LUBRICATION
CAUTION: Drives shipped without oil.
15. JR, JF, & JSC — Refer to Appendix A for selection of
lubricant. Refer to Table 9 at right for approximate oil
capacity of drives.
16. JR, JF, & JSC — HORIZONTAL MOUNTING
Remove air vent and oil level plug (refer to Step 1). Fill
the drive until oil shows in the oil level hole. Coat the air
vent and plug threads with #3 Permatex or equivalent
thread sealant before replacing.
JRV, JFV, & JSCV — (VERTICAL MOUNTING) Refer
to Figure 1, Step 1.
Input Shaft DOWN — Remove the fill plug and fill with
oil to level marked on the dipstick.
Input Shaft UP — Remove the oil level and fill plugs
and fill until oil shows in the oil level hole.
Coat the plug threads with #3 Permatex or equivalent
thread sealant before replacing.
17. JR, JF, & JSC — Where applicable, pump grease into
the high-speed shaft seal cover with a Hand Grease
Gun, Figure 14, until fresh grease flows out along the
shaft. Wipe off excess grease from the shaft. DO NOT
use grease where it could contaminate the product,
e.g. foods, drugs, etc.
START UP
18. JR, JF, & JSC — Before operating the drive, check any
fasteners, pipe plugs, air vent, etc. which may have
been loosened in the course of outfitting, installing
and lubricating the drive to be sure that they have
been properly retightened. If a long fastener was
used to lift the drive into place, reinstall the housing
flange fastener and torque to the value shown in Table
1. After one week of operation, repeat check of all
external fasteners and pipe plugs.
19. AFTER ONE MONTH OF OPERATION:
a. Operate the drive until the sump oil reaches
normal operating temperature. Shut the drive down
and drain immediately.
b. Immediately flush the drive with an oil of the
same type and viscosity grade as the original
charge (warmed to approximately 100°F (38°C) in
cold weather). Rapidly pour or pump a charge
equal to 25-100% of the initial fill thru the drive, or
until clean oil flows thru the drain.
c. Close the drain and refill the drive to the correct
level with new oil of the correct type and viscosity.
BELT TENSION ADJUSTED
WITH TORQUE ARM
PARALLEL
BELT TENSION ADJUSTED
WITH MOVABLE MOTOR
HIGH-SPEED SHAFT
TABLE 9 — Approximate Oil Capacity –
Quarts (Liters) 
DRIVE SIZE JR, JF, & JSC JRV & JFV
5107 2 (1.9) 3 (2.8)
5115 3 (2.8) 4.5 (4.3)
5203 3.5 (3.3) 5 (4.7)
5207 5.5 (5.2) 7.5 (7.1)
5215 9 (8.5) 13 (12.3)
5307 13 (12.3) 18 (17)
5315 15 (14.2) 21 (19.9)
cQuantities are approximate. Always fill drive to specified level.
Figure 13
Figure 14

Owners Manual • Falk Quadrive Shaft Mounted Drives Model A
(Page 10 of 52) Sizes 5107-5315
378-200 (PN-2128394) Rexnord
January 2019 3001 W. Canal St., Milwaukee, WI 53208-4200 USA
Supersedes 04-17 Telephone: [phone] Fax: [phone] www.rexnord.com
Section II
DRIVE SERVICE & REPAIR
PREVENTIVE MAINTENANCE
PERIODICALLY — Carefully check the oil level of the drive
when it is stopped and at ambient temperature; add oil if
needed. If the oil level is above the specified level, have
the oil analyzed for water content. Moisture in the oil may
indicate seal leakage or condensation. If so, correct the
defect immediately and change the oil. DO NOT overfill or
oil leakage may result. If a drive is equipped with a fan,
periodically clean accumulated foreign matter from the fan
and fan guard to allow adequate air flow.
GREASE PURGED SEALS — Periodically (at least every
six months), depending upon the frequency and degree
of contamination, purge contaminated grease from seal
by slowly pumping fresh bearing grease through the seal
cage, WITH A HAND GREASE GUN, until fresh grease
flows out along the shaft. Wipe off the purged grease.
Refer to Appendix A.
PACKING GLAND SEAL — Section I, Step 4(C)
OIL CHANGES
Refer to the Lubrication Recommendations Section in
Appendix A.
STORED & INACTIVE GEAR DRIVES
Each drive is protected with a rust preventive that will
protect parts against rust for a period of 4 months in
an outdoor shelter or 12 months in a dry building after
shipment from the Factory.
If a gear drive is to be stored, or is inactive after installation
beyond the above periods, add Nox-Rust VCI-10 vapor-
phase rust inhibitor. For drives that have oil installed, add
Nox-Rust VCI-10 vaper-phase rust inhibitor at the rate of
2% of sump capacity. For drives without oil, add Nox-Rust
VCI-10 vapor-phase rust inhibitor at the rate of one ounce
per cubic foot of internal drive space. Rotate the shafts
several times by hand. Before operating, drives which have
been stored or inactive must be filled to the proper level
with oil meeting the specifications given in this manual.
Refer to Manual 128-014 for "Start-up after Storage"
instructions.
cProduct of the Daubert Chemical Company, Chicago, Illinois.
Periodically inspect stored or inactive gear drives and
add Nox-Rust VCI-10 every six months, or more often if
necessary. Indoor dry storage is recommended.
The air breather should be replaced with a plug (air
breather should be attached to gear drive for future use)
so that the protective rust inhibiting atmosphere is sealed
inside the drive. Install air breather when preparing drive
for operation.
WARNING: The rust preventative oil from the factory
and Nox-Rust VCI-10 are not H1 registered with the NSF
(National Sanitation Foundation) as suitable for food
processing applications. When Food Grade Lubricants are
to be used, it is the end users responsibility to properly
flush and prepare the drive for Food Grade service.
Contact the lubricant manufacturer for specific information
and flushing procedures.
REPAIR & REPLACEMENT
WARNING: Consult applicable local and national safety
codes for proper guarding of rotating members. Lock out
power source and remove all external loads from drive
before servicing drive or accessories.
NOTE: Only the seals on the input side of the drive can
be replaced without removing the drive from the driven
equipment. All other repairs require removal of the drive
from the driven equipment. Proceed to Step 1 for drive
removal. Proceed to Step 5 for replacement of seals.
Removal (See above note for seal replacement only)
1. JR, JF & JSC — Drain the lubricant at this time.
Remove safety guards and belts (motor and motor
mount, optional). Remove backstop (if so equipped).
Refer to Section II, Step 10, for backstop removal
instructions.
WARNING: Drive must be supported during removal
process. Use a sling around the motor mount or as
recommended in Section I, Step 7. Take up the slack in the
sling before proceeding.