Rexnord Falk Quadrive A, Owner'S Manual

Page: 11 / 52

Falk Quadrive Shaft Mounted Drives Model A • Owners Manual
Sizes 5107-5315 (Page 11 of 52)
Rexnord (PN-2128394)
378-200
3001 W. Canal St., Milwaukee, WI 53208-4200 USA January 2019
Telephone: 414-342-3131 Fax: 414-937-4359 www.rexnord.com Supersedes 04-17
2 JR — Refer to Appendix C for instructions on using the
TA Torque Assist Removal Tool
Alternate Method — Loosen the setscrew on the
bushing nut, which is located at the output end of the
hollow shaft Use a spanner, pipe or chain wrench to
loosen the bushing nut (Section I, Table 6) Initially, the
nut will freely rotate counter-clockwise approximately
180° as the nut moves from the locked position to the
removal position At this point anticipate resistance
which indicates unseating of the bushing Continue to
turn the nut until it is free from the hollow shaft Prepare
drive for lifting by disconnecting the torque arm at
the drive end Slide the drive from the bushing The
bushing can be left in place or removed, as required
If bushing will not slide off of the shaft, insert a small
pry bar into the split of the bushing and pry the split
open slightly to loosen the bushing and remove from
the shaft Proceed to Step 5 for replacement of seals
or Step 9 for drive disassembly procedure
3 JF & JSC — Remove the cover from the input end of
the hollow shaft
JF — Remove the bolts which fasten the drive to the
driven equipment
JSC — (a) If the drive is to be removed from the drive
shaft, remove the seal housing fasteners (Figure 7,
Section I), or (b) if the drive is to be removed with the
drive shaft attached, remove the trough end mounting
fasteners and drive shaft coupling bolts Remove the
assembly from the trough
JF & JSC — Remove the thrust plate, fastener and
retaining ring from the hollow shaft Refer to Table 10
and select a backing bolt and flat washer and install
them into the drive shaft as illustrated in Figure 15 The
head of the backing bolt provides a working surface
for the removal bolt Reinsert the thrust plate and
retaining ring into the hollow shaft and select a removal
bolt from Table 10 Thread the removal bolt into the
thrust plate until it contacts the backing bolt head
Torque the removal bolt to the value shown in Table
10 (if the thrust plate rotates in the shaft, align the slot
in the plate with the hollow shaft keyway and insert a
screwdriver or piece of key stock to prevent rotation of
the plate) After torquing the bolt as instructed, strike
the bolt sharply with a hammer and re-torque the bolt
if separation of the drive from the shaft did not occur
Repeat this procedure, re-torquing the bolt after each
blow, until separation occurs
CAUTION: Failure to follow this procedure may result
in the destruction of the threads in the thrust plate
(if the retaining ring becomes damaged, refer to
Appendix G, for replacement information).
Proceed as follows:
JF to Step 5 for replacement of Quadrive seals only OR
Step 9 for drive disassembly procedure
4
JSC — If the drive was removed with the seal housing
and the drive shaft attached, remove the seal housing
fasteners to separate the seal housing and drive
shaft from the drive After separation of the drive and
shaft has been achieved, determine the type of seal
equipped in the seal housing If it is a waste packing
seal (Figure 7, Section I), a packing gland seal
(Figure 10, Section I) or a lip seal (Figure 8, Section I),
proceed as follows for removal of the drive shaft from
the seal housing:
a PACKING GLAND SEAL — Remove the key from
the drive shaft keyway Loosen the compression
ring fasteners Remove the seal housing toward the
tapered end of the drive shaft
b LIP SEAL — Remove the key from the drive shaft
keyway Remove any burrs from the tapered end
of the shaft and wrap the entire length with masking
tape or a lightweight Kraft paper to protect the
seal lips during removal Carefully remove the seal
housing toward the tapered end of the drive shaft
For replacement of Quadrive seals only proceed to
Step 5, otherwise to Step 9
c WASTE PACKING SEAL — Remove the key from
the drive shaft keyway Remove the waste packing
material and remove the seal housing toward the
tapered end of the drive shaft
TABLE 10 — Removal & Backing Bolt Size &
Length
DRIVE SIZE
Removal Bolt
Size & Minimum
Length - Inches
Maximum
Tightening
Torque
lb-ft (Nm)
Backing Bolt
Size & Maximum
Length - Inches
5107 0.625-11UNC x 1.75 133 (180) 0.500-13UNC x 1.25
5115 0.625-11UNC x 1.75 133 (180) 0.500-13UNC x 1.25
5203
0.750-10UNC x 2.00 242 (328) 0.625-11UNC x 1.75
5207 0.750-10UNC x 2.00 242 (328) 0.625-11UNC x 1.75
5215 1.000-8UNC x 2.50 567 (769) 0.875-9UNC x 2.25
5307 1.125-7UNC x 3.00 742 (1006) 1.000-8UNC x 2.50
5315 1.125-7UNC x 3.00 742 (1006) 1.000-8UNC x 2.50
BACKING BOLT
TAPPED HOLE
IN DRIVE SHAFT
DRIVE SHAFT
FLAT WASHER
REMOVAL
BOLT
THRUST
PLATE
RETAINING
RING
HOLLOW
SHAFT
Figure 15