Drive Chain Alignment And Tension; Troubleshooting - HYTROL BPC Manual De Instalación Y Mantenimiento

• Drive Chain Alignment and Tension

The drive chain and sprockets should be checked periodically for proper tension and
alignment. Improper adjustment will cause extensive wear to the drive components.
TO MAKE ADJUSTMENTS
1. Remove chain guard.
2. Check sprocket alignment by placing a straight edge across the face of both sprockets
(Figure 8A). Loosen set screws and adjust as needed. Re-tighten set screws.
3. To adjust chain tension, loosen bolts that fasten motor base to mounting angles, both
sides of the conveyor.
4. Tighten take-up bolts until desired chain tension is reached. (Figures 8B & 8C).
Re-tighten mounting bolts.
5. Lubricate chain per lubrication instructions.
6. Replace chain guard so that it does not interfere with drive.
FIGURE 8B
CHAIN TOO TIGHT
(REQUIRES EXTRA POWER)
(CADENA DEMASIADO TENSA
[REQUIERE MÁS POTENCIA])
SPROCKET CENTERS
CORRECT SLACK
(TENSIÓN CORRECTA)
CAUTION! Never remove chain guards while the conveyor is running. Always replace guards after adjustments are made.

• Troubleshooting

TROUBLESHOOTING DRIVES
TROUBLE
Conveyor will not start or 1) Motor is overloaded.
motor quits frequently. 2) Motor is drawing too much current.
Drive chain and 1) Lack of lubrication on chain causing chain stretch
sprockets wear
excessively. 2) Sprockets are out of alignment.
3) Loose chain.
Loud popping or 1) Defective bearing.
grinding noise. 2) Loose set screws in bearing.
3) Loose drive chain.
Motor or reducer 1) Conveyor is overloaded.
overheating. 2) Low voltage to motor.
3) Low lubricant level in reducer.
CHAIN TOO LOOSE
(CADENA
DEMASIADO FLOJA)
(CENTROS DE
CATARINAS)
APPROX. 1/4" OR
2% OF SPROCKET CENTERS
(1/4" O 2% DE CENTROS
ENTRE CATARINAS APROX.)
CAUSE
which creates improper chain to sprocket mesh.
Set Screw Diameter
-
5/16in
3/8in
7/16in
1/2in
5/8in
FIGURE 8A
DRIVE SHAFT
SPROCKET
(EJE DE
TRANSMISIÓN)
FIGURE 8C
MOTOR BASE PLATE
(PLACA DE LA BASE
DEL MOTOR)
DRIVE
PULLEY
(POLEA
MOTRIZ)
DRIVE PULLEY
SPROCKET
(CATARINA DE LA
POLEA MOTRIZ)
1) Check for overloading of conveyor.
2) Check heater or circuit breaker and change if necessary
1) Replace chain and sprockets. Provide adequate lubrication.
NOTE: If problem reoccurs, a chain take-up may be required.
2) Align sprockets. See "Drive Chain Alignment and Tension".
3) Tighten chain.
1) Replace bearing.
2) Tighten set screw.
3) Tighten chain.
1) Check capacity of conveyor and reduce load to recommended level.
2) Have electrician check and correct as necessary.
3) Relubricate per manufacturer's recommendations. For HYTROL
reducer, refer to separate manual.
Bearing Set Screw Torque
Brand
Dodge Rex
165 in. lbs 125 in. lbs
290 in. lbs 225 in. lbs
N/A 325 in. lbs
620 in. lbs 680 in. lbs
1325 in. lbs 1350 in. lbs
8
STRAIGHT EDGE
(NIVEL)
REDUCER
SET SCREWS
SPROCKET
(TORNILLOS) (CATARINA DEL
REDUCTOR)
GEAR
REDUCER
(REDUCTOR)
MOUNTING
BOLTS
(TORNILLOS DE
MONTAJE)
TAKE-UP
BOLTS
(TORNILLOS
TENSORES)
MOTOR/REDUCER
REDUCER
DRIVE
SPROCKET
(MOTOR/REDUCTOR (CATARINA DEL
MOTRIZ)
REDUCTOR)
SOLUTION
Linkbelt
185 in. lbs
325 in. lbs
460 in. lbs
680 in. lbs
1350 in. lbs