Holman 314HX Series, Инструкции по сборке, установке и эксплуатации

Страница: 10 / 28

0
MAINTENANCE PROCEDURES
A. REPLACING HEATER TUBES
1) DISCONNECT POWER SOURCE.
2) Remove both the left and right side panels,
by removing the truss head screws. Pull the
top of each panel out slightly and lift up.
3) Remove heater tube wires which are requiring
replacement from its terminal block connection.
4) Remove heater tube retainer by removing
retainer screws with washer.
5) Gently, pull defective heater tube out of unit.
6) Gently, put new heater tube into unit.
7) Replace heater tube retainers.
8) Reconnect the heater tube wires to the
terminal block.
9) Install each side panel
10) Connect unit to power source and test unit for proper operation.
B. REPLACING FAN MOTOR
1) DISCONNECT POWER SOURCE.
2) After unit has cooled, remove the load &
unload trays, and turn unit over so the bottom is
facing upward.
3) Remove the control box cover which contains the fan
motor, by removing the screws.
4) Unplug power supply cord from fan motor.
5) Remove (4) screws, which hold fan motor and grill to
the control box cover and remove fan.
6) Once removed, clean grill and control box
cover using warm soapy water.
7) Put replacement motor and grill in place and secure
to the control box cover with screws
previously removed.
8) Reconnect power supply cord to fan motor.
9) Replace back panel and enclosure. Fasten with
screws removed in step 3.
10) Connect unit to power source and test unit for proper operation.
C. REPLACING BELT DRIVE MOTOR
1) DISCONNECT POWER SOURCE.
2) After unit has cooled, remove the load & unload trays,
and turn unit over so the bottom is facing upward.
3) Remove the control box cover which contains the fan
motor, by removing the (4) screws.
4) Remove the side panel that will expose the
drive chain and sprockets.
5) Remove sprocket from motor shaft, using an Allen
wrench and loosening the set-screw.
6) Remove the wire from terminal block connecting the
drive motor to the internal wiring. On units rated 208
or 240 volts, note which color leads are being used
for these connections and which lead is capped with
glass tape. The new motor should use the same ar-
rangement.
7) Remove screws holding motor in place and remove motor from unit.
8) Put new motor in place and attach loosely with mounting screws.
9) Replace sprocket on motor shaft.
NOTE: The two sprockets must line up FLUSH with each other, so the chain does not twist any during
operation. Also the hub gets installed closets to the motor.
IL1003
ELEMENT RETAINER
ELEMENT
IL1004
AIR INTAKE GRILL
FAN MOTOR
DRIVE MOTOR
DRIVE SPROCKET
IL1005