Triangle Engineering of Arkansas TP HIGH VELOCITY FANS - Manual (Page 3)

tion of the Motor Manufacturer while under warranty.
Exchange, repair or replacement will be provided on a
no charge basis if the motor is defective within the war-
ranty period. The Triangle representative in your area
will provide a name and address of an authorized ser-
vice station if requested. Do not return defective motors
to Triangle Engineering. WARNING: Motor guarantee is
void unless overload protection is provided in motor
wiring circuit.
MAINTENANCE
Do not attempt any maintenance on a fan unless the
electrical supply has been completely disconnected. If a
disconnect switch has not been provided, remove all fuses
from the circuit and lock the fuse panel so they cannot be
accidentally replaced.
Lubrication is a primary maintenance responsibility. All
bearings should be checked periodically. If the fan is installed
in a corrosive or dirty atmosphere, the propeller, inlet and
other moving parts should be cleaned periodically.
RECOMMENDED LUBRICANTS
MANUFACTURER
Chevron
Gulf
Imperial Oil
Shell
Sun Oil
Texaco
Gulf
Imperial Oil
Shell
Sun Oil
Texaco
PRODUCT NAME
SRI-2
Gulfcrown EP-1
Unirex EP-1
Alvania R-2
Sunaplex IEP
Regal AFB2
Gulfcrown EP-2
Unirex EP-2
Alvania R-3
Sun Prestige 42 grease
Regal AFB-2
TEMP. RANGE
Below
32°F. (0°C)
Range 32°F to
150°F (0°C to
66°C)
MOTOR LUBRICATION: In general, standard motors
that are furnished have prelubricated, sealed-for-life ball
bearings which require no lubrication for seven to ten
years of normal service. In cases where motors have been
ordered with greasable bearings, these bearings have been
lubricated at the factory and do not require any attention for
one year under normal conditions. If the particular motor
is equipped with grease relief fittings, these should be
removed to allow old grease to flow out when maintenance
is performed. Whenever possible, grease should be applied
while the motor is running. This practice should not
supersede any safety consideration. DO NOT OVER GREASE
- as most lubricants deteriorate motor windings, thereby
reducing motor life.
IMPORTANT: Use low pressure grease guns only. High
pressure guns tend to blow out or unseat bearing seals,
leaving the bearing open to collect grime, dust and foreign
particles.
LUBRICATION SCHEDULE:
a. Under average conditions where ambient temperatures
do not exceed 120°F, lubrication is required once or
twice a year.
b. Under a dirt laden atmosphere where there is a tempera-
ture range from 10°F. to 120°F, lubrication is required
from three to six times a year.
c. Under extreme temperature conditions and extremely
dirty atmospheres, lubrication should be scheduled at
least once or twice a month.
PARTS REPLACEMENT: If replacing parts, do so with
properly selected components, which duplicate original
parts correctly. Incorrectly sized parts can damage the fan
.
SPECIAL PURPOSE SYSTEMS
Explosive, corrosive, high temperature, etc.
conditions may require special construction, inspection
and maintenance. It is necessary to observe the fan
manufacturer’s recommendations and limitation concerning
the type of material to be handled by the fan and its
application to special conditions.
THE HIDDEN DANGER
In addition to the normal dangers of rotating machinery,
fans present an additional hazard in their ability to suck in
not only air, but loose material as well. Solid objects can
pass through the fan and be discharged by the propeller as
potentially dangerous projectiles.
When a fan is being started for the first time, a complete
inspection of the fan should be made (with the power locked
off).
FAN GUARDS
All fans have moving parts which require guarding in
the same way as other moving machinery. In areas which
are accessible only to experienced personnel, a standard
industrial type guard is required. This type of guard will
prevent the entry of thrown or dropped objects with a
minimum restriction of air flow.
Where the fan is accessible to untrained personnel or
the general public, maximum safety guards should be used,
even at the cost of some loss of performance. Fans located
less than 7’ above the floor require special consideration as
specified in the Occupational Safety and Health Act.