20
Detailed Component
Maintenance Proce-
dures
Fan Drive System
Gear Drive System
Fan Motors
Inspection & Maintenance
Model Number
Standard Fan
Gear Model for Standard Fan
FXV3-1224-xxx-10, 15 and CXVT-xxx-1224-10, 15
85
FXV3-1224-xxx-20, 30, 40, 50, 60 and CXVT-xxx-1224-20, 30, 40, 50, 60
110
FXV3-1224-xxx-75 and CXVT-xxx-1224-75
135
FXV3-1426-xxx-15 and CXVT-xxx-1426-15
85
FXV3-1426-xxx-20, 25, 30, 40 and CXVT-xxx-1426-20, 25, 30, 40
110
FXV3-1426-xxx-50, 60, 75 and CXVT-xxx-1426-50, 60, 75
135
FXV3-1426-xxx-100 and CXVT-xxx-1426-100
155
Table 4.
Gear Model/Unit for Standard Fans and Low Sound Fans
Fan Motors
FXV, FXV3, CXVB, and CXVT units use cooling tower duty, premium efficient, totally
enclosed, single-speed, single-winding, reversible ball bearing type motor(s).
Inspection and Maintenance
• Clean the outside of the motor at least quarterly to ensure proper motor cooling.
• After prolonged shutdowns, check the motor insulation with an insulation tester prior
to restarting the motor.
• Check motor voltage and current following start-up and every three months while in
operation.
Adjustable Motor Base (BALTIDRIVE
®
Power Train Only)
Coat the motor base slides and adjusting screws (refer to
Figures 4a
and
4b
)
prior to start-up, every three months while in operation, and following shutdown. Use good
quality, corrosion inhibiting grease such as one of those recommended for lubricating the
fan shaft bearings on
.
NOTICE:
Check to ensure the
controls for the fan motor are set
to allow a maximum of six on-off
cycles per hour to prevent motor
overload.
