Greenheck AX (464664) - Manual (Page 6)

6 Axial Fan
Maintenance
Once the unit has been put into operation, a routine
maintenance schedule should be set up to accomplish
the following:
1. Lubrication of motor.
2. Propeller, housing, and bolts on the entire fan should
be checked for tightness.
3. Any dirt accumulation on the propeller or in the
housing should be removed to prevent unbalance
and possible damage.
4. Inspection of fan propeller and housing looking for
fatigue, corrosion, or wear.
When performing any service to the fan, disconnect the
electrical supply and secure fan propeller.
Motors
Motor maintenance is generally limited to cleaning
and lubrication. Cleaning should be limited to exterior
surfaces only. Removing dust and grease buildup on
the motor housing assists proper motor cooling. Never
wash-down motor with high pressure spray.
Greasing of motors is only intended when fittings are
provided. Many motors are permanently lubricated for
life and require no further lubrication. Motors supplied
with grease fittings should be greased in accordance
with the motor manufacturer’s recommendations.
Fasteners and Set Screws
A periodic inspection should include checking all
fasteners and bolts for tightness. Particular attention
should be paid to the bushing attaching the propeller to
the motor shaft and the motor to its mounting fixture.
Removal of Dust and Dirt
Dirt clogs cooling openings on the motor housing,
contaminates bearing lubricant, and collects on the
propeller causing severe imbalance if left unchecked.
The exterior surface of the motor and propeller should
be thoroughly cleaned periodically. Use caution and do
not allow water or solvents to enter the motor. Under no
circumstances should motors be sprayed with steam or
water.
Parts List
Each fan bears a manufacturer’s nameplate with model
number and serial number embossed. This information,
in addition to the shown parts diagram, will assist
the local Greenheck representative and the factory in
providing service and replacement parts.
Nameplates are mounted in an area which is clearly
visible, usually near the fan outlet. The exact tag
location may differ with fan model and size.
Motor
(behind propeller)
Motor
Windband Gussets
Casing
Casing
Mounting Brackets
(optional)
Propeller
(hub and blades)
Propeller
Butterfly Dampers
Curb Cap
Windband
®