Triangle Engineering of Arkansas JD - Manual (Page 3)

temperatures. This is a normal condition, but they may
be hot enough to be painful or injurious to the touch.) If
any problem is indicated, SWITCH OFF IMMEDIATELY.
Lock out the electrical supply and check carefully for the
cause of the trouble and correct as needed. Even if the
fan appears to be operating satisfactorily, shut down after
a brief period and check all fasteners, set­screws and
keys for tightness.
The fan may now be put into operation but during the first
eight (8) hours of running it should be periodically observed and
checked for excessive vibration or noise. At this time checks
should be made on motor input current and motor bearing
temperatures to insure they do not exceed manufacturer’s
recommendations. After eight hours of satisfactory operation,
the fan should be shut down and the electrical power locked
out to check the following items and adjust if necessary:
a. All set­screws, keys and fasteners.
b. Drive coupling alignment.
c. V­belt drive alignment.
d. V­belt tension.
NOTE
• Care should be taken to follow all local electrical, safety
and building codes.
• Provisions of the National Electrical Code, as well as the
Occupational Safety and Health Acts should be followed.
• All motors are checked prior to shipment; however, if motor
defects should develop, prompt service can be obtained
from the nearest authorized service station 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 warranty period. The Triangle
Engineering representative in your area will provide a name
and address of an authorized service 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. V­belts also, should
be inspected for tightness. If the fan is installed in a corrosive
or dirty atmosphere, the propeller, inlet and other moving parts
should be cleaned periodically.
MOTOR LUBRICATION: In general, standard motors that
are furnished have prelubricated sealed­for­life 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.
FAN SHAFT LUBRICATION: Fan shaft ball bearings are
furnished in either the pre­lubricated sealed­for­life type or
the greasable type depending on what was ordered. Here
again, the pre­lubricated type requires no servicing for seven
or ten years of normal use, and the greasable type are factory
greased eliminating the need for greasing initially. Whenever
grease is required, depending on the lubricating schedule,
it should be applied while the shaft is rotating. This practice
should not supersede any safety considerations.
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 shafts, belts, pulleys, propellers,
etc. 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. Intake to duct work should,
whenever possible, be screened to prevent the accidental
entrance of solid objects.
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)