Drive Chain Alignment And Tension; Trouble Shooting - HYTROL 190-NSP Family Manual De Instalación Y Mantenimiento

for normal operating environments, lubricate every 2080 hours of operation or
every 6 months, whichever comes first. Lubricate with a good grade of petroleum
or synthetic oil (i.e., Shell Rotella or Mobil 1). for best results, always use a brush
to generously lubricate the chain. The proper viscosity of lubricant greatly affects
its ability to flow into the internal areas of the chain. Refer to the table below for the
proper viscosity of lubricant for your application.
The drive chain's lubrication requirement is greatly affected by the operating
conditions. for harsh conditions such as damp environments, dusty environments,
excessive speeds, or elevated temperatures, it is best to lubricate more frequently.
It may be best, under these conditions, to develop a custom lubrication schedule
for your specific application. A custom lubrication schedule may be developed by
inspecting the drive chain on regular time intervals for sufficient lubrication. Once
the time interval is determined at which the chain is not sufficiently lubricated,
lubricate it and schedule the future lubrication intervals accordingly.

• 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
sprockets. (figure 6A.) Loosen
Re-tighten set screws.
3. To adjust line shaft drive sprocket, loosen smaller nut (inner ring) of keyless bushing with
a 1-3/4 in. open end wrench, while backing up with a 1-3/4 in. open end wrench on flats of
bushing body (outer ring), which stays stationary. Move to desired location along the shaft,
keeping sprocket face flush against shoulder of hex flats. Make sure shaft location is free
from oil, grease, and dirt. do not lubricate bushing or shaft. Note that as the inner ring nut
is fully tightened, the assembly will move approximately 1/16 in. axially along shaft, away
from the nut side. Re-check sprocket alignment, loosen and re-adjust if necessary.
4. To adjust chain tension, loosen bolts that fasten motor base to support channel. Tighten
take-up bolts until desired chain tension is reached (figure 6B & 6C.) Make sure both sides
are adjusted the same amount to prevent mis-alignment of sprockets. Re-tighten
mounting bolts.
5. Lubricate chain per lubrication instructions.
6. Replace chain guard so that it does not interfere with drive.
CAUTION! Never remove chain guards while the conveyor is running. Always
replace guards after adjustments are made.

• Trouble Shooting

TROUBLE SHOOTING dRIVES
TROUBLE
Conveyor will not start or 1) Motor is overloaded or drawing too much current.
motor quits frequently. 2) Motor is drawing too much current.
drive chain and sprockets 1) Sprockets are out of alignment.
wear excessively. 2) Loose chain.
Loud popping or grinding 1) defective bearing.
noise. 2) Loose set screw 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.
Tread Roller not 1) Oil on line shaft.
turning under loaded 2) Unit overloaded.
conditions. 3) Package flow obstructed by guard rail or other
4) defective bearing in roller.
5) Broken drive band.
across the face of both
set screws and adjust reducer sprocket as needed.
CAUSE
object.
FIGURE 6A
STRAIGHT EDGE
DRIVE SHAFT
SPROCKET
(CATARINA DEL EJE
DE TRANSMISION)
SET SCREWS
(TORNILLOS CANDADO)
FIGURE 6B
CHAIN TAKE-UP BOLTS
(TORNILLOS TENSORES)
SLOTTED
SUPPORT CHANNEL
(CANAL RANURADO)
MOUNTING BOLTS
(TORNILLOS DE
MONTAJE)
MOTOR BASE
(BASE DEL MOTOR)
CHAIN
(CADENA)
FIGURE 6C
CHAIN TOO TIGHT
(REQUIRES EXTRA POWER)
(CADENA DEMASIADO TENSA
[REQUIERE MAS POTENCIA])
CORRECT SLACK
(TENSION CORRECTA)
1) Check for overloading of conveyor.
2) Check heater or circuit breaker and change if necessary.
1) Align sprockets. See "drive Chain Alignment and Tension" in this
manual.
2) 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 Reducer Bulletin.
1) Clean the line shaft with K-2R spot remover or equivalent.
2) Check capacity of conveyor and reduce load to recommended level.
3) Clear obstruction.
4) Replace roller assembly.
5) Replace band.
6
(NIVEL)
REDUCER
SPROCKET
(CATARINA DEL
REDUCTOR)
GEAR REDUCER
(REDUCTOR)
CHAIN TOO LOOSE
(CADENA DEMASIA
- DO FLOJA)
SPROCKET CENTERS
(CENTROS DE
CATARINAS)
APPROX. 1/4" OR 2%
OF SPROCKET CENTERS
(1/4" O 2% DE CENTROS DE
CATARINAS APPROX.)
SOLUTION