INTRODUCTION
This gear drive is furnished with a cooling system to dissipate
the heat generated by the load being transmitted through the
drive. The installation, operation and minor adjustments to this
cooling system is the subject of this manual. For detailed
maintenance instructions and specifications for accessories
such as the oil filter, thermometer, oil relief valve, oil heater,
oil flow indicator, oil pressure gauge, pressure control switch
and warning device, consult the product manufacturer’s
literature.
Falk™ Specifications 146-764 lists part numbers and brief
construction and operation data for the above accessories.
Selection Guide 141-931 gives selection and dimensional
data for Falk™ standard external pump and cooler systems.
When ordering parts, or requesting information, specify the
Falk M.O. number, unit size, H.S. shaft rpm, ratio and date
stamped on the unit nameplate.
CAUTION:
Lock out power source and remove all external
loads from unit before servicing unit or accessories.
PIPE CONNECTIONS
Oil line connections are completed at Falk™ for internal and
unit mounted pumps; only the cooler water lines require
connection during installation. For floor-mounted pumps and
coolers, connect oil and water lines after the gear drive has
been installed. Refer to Figures 1 thru 3 and Tables 1 and 2 for
oil and water line connection points and pipe sizes. Always
locate floor mounted pumps BELOW the unit oil level to
maintain a prime and CLOSE to the unit to minimize pipe
lengths.
Connect water inlet line to the tube side of the heat exchanger
and run the discharge line to an OPEN DRAIN to prevent back
pressure. DO NOT use a throttling valve between heat
exchanger and drain.
Equip units with a by-pass valve or an immersion type oil
heater when the ambient temperature is below 50°F(10°C).
Consult Factory for size and type of heater and Specifications
146-764 for wiring diagram.
OIL LEVELS —
Prior to filling Type Y and YB reducers, remove
the inspection plate and FLOOD THE OIL TROUGHS to insure
a generous flow of oil to the bearings. For Type YBX, remove
the top plug or sight glass and flood oil passages. This priming
action lubricates and protects the bearings until sufficient oil is
circulated. Fill unit to level marked on the dipstick.
Falk™ Gear Drive Type PC Pump and Cooler
•
Installation and Maintenance
Types Y, YF, YB, and YBX
•
All Sizes
(Page 1 of 3)
Rexnord Industries, LLC, Gear Group
148-931
3001 W. Canal St., Milwaukee, WI 53208-4200 USA Telephone: 414-342-3131
December 1990
Fax: 414-937-4359 e-mail: [email protected] web: www.rexnord.com
Supersedes 2-71
TABLE 1 — Y and YF Drive Pipe Sizes – NPT
(
Refer to Figures 1 and 2)
DRIVE
SIZE
H
DD
GE
JD
KD
DRIVE
SIZE
Q
DD
GE
JD
KD
2050
.50
. . .
. . .
1.00
2120/25
.75
1.00
1.25
1.25
2060
.50
. . .
. . .
1.00
2130/35
.75
1.00
1.25
1.25
2070
.50
. . .
. . .
1.00
2140/45
1.00
1.00
1.50
1.50
2080
.50
†
. . .
. . .
1.25
2150/55
1.00
1.25
1.50
1.50
2090
.50
†
. . .
. . .
1.25
2160/65
1.50
‡
1.25
2.00
2.00
2100
.75
. . .
1.25
1.25
2170/75
1.25
1.25
2.00
2.00
2110
.75
.75
1.25
1.25
2180/85
1.50
‡
1.25
2.00
2.00
2190/95
1.50
‡
1.25
2.00
2.50
H
Dimensions also apply to YF series drives. For YB and YBX, refer to Factory.
†
DD = .75 with 40PC.
‡
DD = 1.25 with 50PC.
TABLE 2 — Pump and Cooler Pipe Sizes – NPT
(Refer to Figure 3
)
Pump and
Cooler Size
GA
MB
V
WD
Pump and
Cooler Size
GA
MB
V
WD
20PC
.75 1.00 .50
. . .
50PC
2.00 3.00 1.00
1.25
l
30PC
1.00 1.50 .50
.75
60/61PC
2.00 3.00 1.50
1.50
l
40PC
1.50 2.00 .75 1.00
70PC
2.00 3.00 1.50
2.00
l
WD = 2 for Drive Sizes 2180 through 2195.
SINGLE
REDUCTION
DOUBLE
REDUCTION
GE
– HOLE
DOUBLE REDUCTION
WD
– HOLE
SINGLE REDUCTION
KD – HOLE FOR OIL SUCTION
LINE FROM PUMP
SPLASH LUBRICATION
Figure 1
Figure 2
Figure 2
HEAT
EXCHANGER
MB
– OIL
DISCHARGE
PUMP
OIL AND WATER LINE LOCATIONS
JET LUBRICATION
V
– OIL
SUCTION
GA
– WATER
INLET
V
– OIL
DISCHARGE
GA
– WATER
OUTLET
V
– OIL
DISCHARGE
GA
– WATER
INLET
V
– OIL
SUCTION
GA
– WATER
OUTLET
V
– OIL
SUCTION
GA
– WATER
INLET
V
– OIL
DISCHARGE
GA
– WATER
OUTLET
SIZES 20 AND 40 PC
SIZES 50 AND 61 PC
SIZES 60, 70, AND 80 PC
