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378-206
Rexnord
January 2019
3001 W. Canal St., Milwaukee, WI 53208-4200 USA
Supersedes 07-15
Telephone:
414-342-3131
Fax:
414-937-4359
www.rexnord.com
(PN-212395)
Appendix M
•
Falk Quadrive Shaft-Mounted Drives Model A
(Page 50 of 53)
Sizes 5407-5608
(PN-212395)
Electric Fan Installation
INTRODUCTION
The following instructions apply to the installation of the
electric fan . The sump temperature switch is provided as a
standard feature .
The sump temperature switch features dual settings for two
independent single-pole, double-throw circuits . Only one
circuit is used to control the fan . The remaining circuit may
be used to control a warning light, an alarm, or a motor
shutdown switch if the temperature setting is exceeded .
The sump temperature switch wiring diagram is given in
Figure 1 .
L
1
L
2
MS
CONTROL BOLTAGE
LOW CIRCUIT
RED
BLUE
START FAN
MOTOR
SET @ 140°F
SET @ 210°F
HIGH CIRCUIT
YELLOW
ORANGE
HIGH TEMP.
BROWN
PURPLE
Figure 1
Refer to Figure 2 for electric fan, temperature switch and
bulb well standard mounting locations . The bulb well
houses the sump temperature probe . These mounting
locations are based on drive mounting position .
ELECTRIC FAN, TEMP. SWITCH & BULF-WELL STANDARD LOCATIONS
(BASED ON DRIVE MOUNTIN POSITION)
DRIVE WITH MOTOR MOUNT
DRIVE W/O MOTOR MOUNT
A3
C3
D3
3 O’CLOCK
B6
D6
A6
6 O’CLOCK
C9
A9
B9
9 O’CLOCK
D12
B12
C12
12 O’CLOCK
Figure 2
ASSEMBLY INSTRUCTIONS
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.
1 . Drain oil from the drive .
2 . ELECTRIC FAN PANEL REWORK — The holes in the
electric fan panel must be enlarged to accommodate
the fasteners used to mount the electric fan to the
shroud . Align the fan panel to the shroud . Locate and
drill four 0 .4375” (12 mm) diameter clearance holes in
line with the pre-drilled holes in the shroud .
3 . Insert four 1 .25” (32 mm) cap screws through the fan
mounting holes in the shroud with the threaded portion
of the cap screw away from the drive . Secure the cap
screws to the shroud with flat washer (2 washers for
5407) and nut . See Figure 3 .
FLAT WASHER
CAP SCREW
SHROUD
FAN PANEL
LOCKNUT
NUT
Figure 3
4 . Secure the sump temperature switch to the switch
mounting bracket . Attach the switch and mounting
bracket to the fan shroud . Refer to Figure 2 for location .
5 . Install the temperature probe bulb well in the
designated drain hole as shown in Figure 4 . Refer to
Figure 2 for bulb well location .
CAUTION
: Sump temperature probe must be located
below oil level.
TAKE UP SLACK
CAPILLARY IN LOOP
CABLE STRAP
NIPPLE-PIPE
REDUCER COUPLING
BULB-WELL SPLIT NUT
(BULB-WELL LOCATION VARIES)
BRACKET
CAP SCREW .25 x .75
LOCK WASHER
FLAT WASHER
NUT
LOCATION VARIES BASE ON
DRIVE CLOCK POSITION. SUMP
TEMPERATURE PROBE MUST BE
LOCATED BELOW OIL LEVEL.
TEMPERATURE
SWITCH
Figure 4
Figure 4