Belt Installation; Electrical Equipment; Belt Tracking - HYTROL ABLR Manual De Instalación Y Mantenimiento

• Belt Installation

INSTALLING THE BELT
The conveyor belt has been cut to the proper length
and lacing installed at the factory. The belt should
be installed with the brushed side down toward the
pressure rollers and the polyurethane coated side up
toward the tread rollers. To install follow these steps:
1.Remove tread rollers as necessary in order to
thread belt through conveyor as shown in Figure 5A.
Pull ends together and insert lacing pin (Figure 5B). If
belt ends cannot be pulled together by hand, loosen
take-up pulley in center drive and/or use a belt puller
so lacing pin can be inserted.
2. Adjust belt tension with take-up pulley. Keep
pulley square by moving both take-up bolts an equal
amount. Maintain enough tension so drive pulley will
not slip when carrying the rated load.
3. Track belt per instructions on Page 5 & 6.
BELT WIDTH LACING ANGLE
(ANCHO DE LA CORREA) (ANCHO DEL ENLACE)
6" 2.25°
CAUTION! Excessive slippage will reduce belt life and
damage drive pulley lagging. Never apply more tension
than is needed. Over-tension will cause extra wear to
belt and bearings and will require extra power from drive.

• Electrical Equipment

CONTROLS
Electrical Code: All motor controls and wiring shall conform to the National
Electrical Code (Article 670 or other applicable articles) as published by
the National Fire Protection Association and as approved by the American
Standards Institute, Inc.
WARNING! Electrical controls shall be installed and wired by a qualified
electrician. Wiring information for the motor and controls are furnished by
the equipment manufacturer.
A) Control stations should be so arranged and located that the operation of
the equipment is visible from them, and shall be clearly marked or labeled to
indicate the function controlled.
B) A conveyor which would cause injury when started shall not be started
until employees in the area are alerted by a signal or by a designated person
that the conveyor is about to start.
When a conveyor would cause injury when started and is automatically
controlled or must be controlled from a remote location, an audible device
shall be provided which can be clearly heard at all points along the conveyor
where personnel may be present. The warning device shall be actuated by
the controller device starting the conveyor and shall continue for a required
period of time before the conveyor starts. A flashing light or similar visual
warning may be used in conjunction with or in place of the audible device if
more effective in particular circumstances.
Where system function would be seriously hindered or adversely
affected by the required time delay or where the intent of the warning may
be misinterpreted (i.e., a work area with many different conveyors and allied
devices), clear, concise, and legible warning shall be provided. The warning
shall indicate that conveyors and allied equipment may be started at any time,
that danger exists, and that personnel must keep clear. The warnings shall be
provided along the conveyor at areas not guarded by position or location.
C) Remotely and automatically controlled conveyors, and conveyors where
operator stations are not manned or are beyond voice and visual contact from
drive areas, loading areas, transfer points, and other potentially hazardous
locations on the conveyor path not guarded by location, position, or guards,
shall be furnished with emergency stop buttons, pull cords, limit switches, or
similar emergency stop devices.
All such emergency stop devices shall be easily identifiable in the
immediate vicinity of such locations unless guarded by location, position, or
guards. Where the design, function, and operation of such conveyor clearly is
not hazardous to personnel, an emergency stop device is not required.
The emergency stop device shall act directly on the control of the
conveyor concerned and shall not depend on the stopping of any other
equipment. The emergency stop devices shall be installed so that they cannot
be overridden from other locations.
D) Inactive and unused actuators, controllers, and wiring should be removed
from control stations and panel boards, together with obsolete diagrams,
indicators, control labels, and other material which serve to confuse the
operator.
FIGURE 5A
TAIL PULLEY
(POLEA DE RETORNO)
DESPLAZAMIENTO)
PRESSURE ROLLERS RETURN/SNUB IDLER
(RODILLOS DE PRESIÓN)
RETORNO/ALINEACIÓN)
NOTE: If belt ends cannot be pulled together by
hand, it may be necessary to loosen take-ups (at tail
pulley, etc.), minimum position or use a belt puller
so lacing pin can be easily inserted.
NOTE: Tread roller axles are spring loaded on one
end. Rollers may be removed by using tool such as
a screwdriver to push on the "soft" end of the axle
or pliers to pull on opposite end of the axle.
SAFETY DEVICES
A) All safety devices, including wiring of electrical safety devices, shall be
arranged to operate in a "Fail-Safe" manner, that is, if power failure or failure
of the device itself would occur, a hazardous condition must not result.
B) Emergency Stops and Restarts. Conveyor controls shall be so arranged
that, in case of emergency stop, manual reset or start at the location where
the emergency stop was initiated, shall be required of the conveyor(s) and
associated equipment to resume operation.
C) Before restarting a conveyor which has been stopped because of an
emergency, an inspection of the conveyor shall be made and the cause of
the stoppage determined. The starting device shall be locked out before
any attempt is made to remove the cause of stoppage, unless operation is
necessary to determine the cause or to safely remove the stoppage.
Refer to ANSI Z244.1-1982, American National Standard for Personnel
Protection – Lockout/Tagout of Energy Sources – Minimum Safety
Requirements and OSHA Standard Number 29 CFR 1910.147 "The Control
of Hazardous Energy (Lockout/Tagout)."

• Belt Tracking

PRE-TRACKING INSPECTION
Before attempting to physically track the belt:
1. Make sure all bed sections are square. See information on "Racked
Sections", Page 4.
2. Make sure conveyor is level across the width and length of unit. Adjust
supports as necessary.
3. Make sure conveyor is straight. See Conveyor Set up on page 4.
4. Make sure all pulleys, return idlers, and snub idlers are square with
conveyor bed. (Figures 6A thru 6D). Dimension "A" should be equal on both
sides of unit.
5. Make sure belt has been properly threaded through conveyor. See "Belt
Installation", Page 5.
IMPORTANT: When belt tracking adjustments are made, they should be
minor (1/16 in. at a time on idlers, etc., should be sufficient.).
Give the belt adequate time to react to the adjustments. It may take several
complete revolutions around the conveyor for the belt to begin tracking
properly on long, slow conveyor lines.
A) Stand at tail pulley looking toward drive and note what direction belt is
traveling.
B) Having observed belt and determined tracking problem, follow procedures
in "How to Steer The Belt", See Figure 6C.
5
TREAD ROLLER TAKE-UP PULLEY
(RODILLO DE (POLEA DE COMPENSACIÓN)
DRIVE PULLEY
(RODILLO DE (POLEA MOTRIZ)
BELT LACING
(ENLACE DE LA CORREA)
BELT
(CORREA)
TAIL PULLEY
(POLEA DE RETORNO)
RETURN IDLER
(RODILLO DE RETORNO)
FIGURE 5B
LACING PIN
(PASADOR
DE ENLACE)