Triangle Engineering of Arkansas QB2 4223 - Manual (Page 2)

DESCRIPTION
The QB2 is a high volume portable fan
designed for heavy-duty use in factories,
warehouses, laundries, garages, etc. lt is
easily rolled to various locations. The unit is
constructed of pre-coated steel. Guards are
made of steel wire with a powder coat finish,
and comply with OSHA guarding require-
ments. The ON/OFF switch is conveniently
mounted on top of barrel.
GENERAL SAFETY INFORMATION
1. Your QB2 fan will operate only on 115
Volt AC, 60Hz (cycle) current with a mini-
mum of a 15 Amp circuit.
2. WARNING: To reduce the risk of electric
shock, DO NOT expose to water or rain. To
guard against electric shock while the fan
is connected to power source, DO NOT
PERMIT fan to come in contact with other
grounded objects such as pipes, radiators,
ranges, etc.
3. DO NOT ABUSE POWER CORD.
DO NOT pull on cord to remove from elec-
trical receptacle. Keep cord away from heat,
oil and sharp edges. Inspect cord periodi-
cally and replace if damaged.
4. Disconnect the fan when not in use,
before servicing and cleaning and when
repairing or replacing parts.
5. DO NOT carry or move the fan when
connected to power source. Be sure switch
is in “OFF” position prior to connecting to
power source.
6. When the QB2 is used out-of-doors with
extension cord, use only cord of proper size
(Amp rating), UL listed and with receptacle to
accept three prong grounded plug furnished
on the fans power cord. Only round jacketed
extension cords should be used.
7. Before operating this fan, check for worn
or damaged parts and replace or repair
as required. To avoid risk of fire, electri-
cal shock or other injury, disconnect from
power source before servicing.
8. DO NOT operate the QB2 near flam-
mable liquids or in gaseous or explosive
atmospheres as sparks from motor may
ignite fumes.
9. If the wire guards are removed, replace
before normal operation.
10. In case of power failure, turn off the fan
at switch. This will prevent motor burn out
and/or unexpected restarting.
ASSEMBLY
No assembly required
OPERATION
Your QB2 fan is turned ON or OFF with a
rocker switch located toward the top of the
barrel. To operate the two speed fan push
one side of the rocker switch down for low
speed and the opposite side down for high
speed. Place the rocker switch in the center
position to turn the fan OFF.
READ INSTRUCTIONS CAREFULLY BEFORE ATTEMPTING TO INSTALL,
OPERATE OR SERVICE THIS FAN. FAILURE TO COMPLY WITH
INSTRUCTIONS COULD RESULT IN PERSONAL INJURY AND/OR PROPERTY
DAMAGE. RETAIN INSTRUCTIONS FOR FUTURE REFERENCE.
Motor
SYMPTOM
1. Faulty switch
2. Defective motor
3. No power Fan does not operate 1. Replace switch
2. Replace motor
3. Check to see if power cord
is plugged in. Check fuse or
circuit breaker.
POSSIBLE CAUSE(S) CORRECTIvE ACTION
1. Loose pulleys or fan blade
2. Intake guard or exhaust
guard excessively dirty
3. Loose belt
1. Tighten pulley set screw
2. Clean guards
3. Move motor to tighten belt
Insufficient air flow
1. Replace motor
2. Replace bearings and seals
3. Move motor to tighten belt
4. Replace belt 1. Defective motor bearings
2. Defective fan bearings
3. Loose belt
4. Worn belt Squealing, slapping or whining
noises while operating
MINOR AND ROUTINE
1. Motor bearings are pre-lubricated ball bear-
ings. Re-lubrication is not required.
2. Keep guards and blade clean by vacuum-
ing or wiping periodically. Also keep motor
from accumulating excessive dust that may
cause overheating.
DISASSEMBLY PROCEDURE
1. Disconnect cord from power supply.
2. Remove guard screws.
3. Remove Guard.
NOTE: Upon completion of maintenance, rein-
stall components in reverse order as indicated
above.
WhEN ORDERING REPAIR PARTS
always give the following information:
1. Part description
2. Model Number of fan
3. Serial number
MAINTENANCE
TROUBLEShOOTING
WARNING: Disconnect power before servicing
IMPORTANT
QB2 Wiring Diagram