Rexnord
378-206
3001 W. Canal St., Milwaukee, WI 53208-4200 USA
January 2019
Telephone:
414-342-3131
Fax:
414-937-4359
www.rexnord.com
Supersedes 07-15
(PN-212395)
Falk Quadrive Shaft-Mounted Drives Model A
•
Owners Manual
Sizes 5407-5608
(Page 19 of 53)
c . Arrange the shaft assemblies to ensure that the
gears are in mesh and bearing cones are in the
cups .
d . Apply a bead of Loctite Gasket Eliminator #515 or
equivalent to housing base as shown in Figure 21 .
Carefully lower the housing cover (using eyebolts
as recommended in Section II, Step 11) . Remove
eyebolts . Install taper screw dowels through the
housing cover into the housing base . NOTE: Be sure
the nut on the taper screw dowel is loose so that the
nut does not interfere with seating the taper screw
dowel . Seat taper screw dowel into housing base
by striking the head of the taper screw dowel with a
hammer . Install cover fasteners and immediately (within
3 minutes) tighten to torque specified in Table 14 .
e . Apply film of oil to housing cover bores and bearing
cups & carefully install the bearing cups into the
bores as described in Step 2 .
f . Install seal cages without seals and covers:
DOUBLE REDUCTION DRIVES
— Use the entire
shim-gasket kit with the .015” (0 .38 mm) shim-
gasket against the housing . It is important that the
.015” (0 .38 mm) shim-gasket be placed against the
housing to prevent leakage . Cross tighten fasteners
to torques specified in Table 14 . Parts involved are
as follows:
Low-speed seal cage Ref . #11, 24 & 34; shaft cover
Ref . #16, 26 & 36; high-speed seal cage Ref . #21, 31
& 39 .
SINGLE REDUCTION DRIVES
— Install end cover,
Ref . #16, with one .015” (0 .38 mm) shim-gasket,
Ref . #26, on unused bore . Cross tighten fasteners,
Ref . #36, to torque specified in Table 14 . For the
other seal cages follow instructions from above as
described for double reduction drives .
6 .
BEARING ADJUSTMENT
a .
FOR DRIVES EQUIPPED WITH TA TAPER
BUSHING
— Turn drive over onto the input housing
and carefully thread bushing nut onto hollow
shaft threads . Rotate the shaft to seat the cone
assemblies in the bearing cups . Set up a dial
indicator, Figure 22 . Rotate and oscillate shaft with
axial force applied in both directions to obtain the
shaft axial float measurement (upward force can
be applied by prying the bushing nut upward) . If
no float is measured, remove bushing nut and seal
cage & add shim-gaskets until float is measurable .
Proceed to Step 6(c) .
b .
FOR DRIVES WITHOUT THE TA TAPER BUSHING
— Insert the hollow shaft thrust plate and secure
with the retaining ring as illustrated in Section I,
LOCTITE GASKET
ELIMINATOR #515
OR EQUIVALENT
Figure 21
Figure 4 . Thread a bolt into the thrust plate . Set up
a dial indicator on the input housing face with the
indicator probe on the end of the hollow shaft . DO
NOT indicate from the thrust plate or fastener head .
Rotate and oscillate shaft with axial force applied in
both directions to obtain the axial float measurement
(Upward force can be applied by prying the head
of the thrust plate bolt upward) . If no float is
measured, remove seal cage and add shim-gaskets
until float is measurable .
c . If the axial float from 6(a) or (b) is greater than
.010” (0 .25 mm), subtract sufficient shims to obtain
.001” to .010” (0 .03 mm to 0 .25 mm) float . Refer
to Table 15 for shim thickness . Take into account
the compressibility of shim-gaskets from Table 16 .
Reassemble and repeat Step 6(a) or (b) . When
float is within .001” to .010” (0 .03 mm to 0 .25 mm),
proceed to Step 6(d) .
DIAL INDICATOR TIP MUST
REST ON QUILL SHAFT AND
NOT ON NUT SURFACE
DIAL INDICATOR
WITH STAND
BUSHING NUT
THREADED ON
QUILL SHAFT
PRY BAR
Figure 22
Table 15 — Individual Shim-Gasket Part
Numbers
Ref. No.
Shim
Thickness
Inches (mm)
DRIVE SIZE
5407
5415
5507
5608
100
. . .
0786841
0785587
0786843
0786844
24
0.007 (0.18)
1231144
1220259
1220130
1231222
0.009 (0.23)
0767761
0757456
0757453
0767802
0.015 (0.38)
0767762
0757457
0757454
0767803
0.031 (0.79)
0767763
0757458
0757455
0767804
25
0.015 (0.38)
0755904
0757460
0757460
3200133
26
0.007 (0.18)
1219682
1220540
1220128
0761568
0.009 (0.23)
0755903
0757459
0755947
0761569
0.015 (0.38)
0755904
0757460
0755948
3200133
0.031 (0.79)
0755905
0757461
0755949
. . .
27 & 28
0.015 (0.38)
0755904
1220129
0757460
0710703
29 & 30
0.015 (0.38)
0755904
1220129
1220129
. . .
31
0.007 (0.18)
1219682
1220540
1220128
1130518
0.009 (0.23)
0755903
0757459
0755947
0710702
0.015 (0.38)
0755904
0757460
0755948
0710703
0.031 (0.79)
0755905
0757461
0755949
. . .
Table 16 — Falk Shim-Gasket Compressibility
Thickness
Inches (mm)
New
0.007 (0.18) 0.009 (0.23) 0.015 (0.38) 0.031 (0.79)
Compressed
0.006 (0.15) 0.008 (0.20) 0.013 (0.33) 0.028 (0.71)