Electrical Equipment; Operation; Conveyor Start-Up; Maintenance - HYTROL SBC 90 Manual De Instalación Y Mantenimiento

• Electrical Equipment

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.
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.
CONTROL STATIONS
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.
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)."

OPERATION

1. Only trained employees shall be permitted to operate conveyors. Training shall
include instruction in operation under normal conditions and emergency situations.
2. Where employee safety is dependent upon stopping and/or starting devices, they
shall be kept free of obstructions to permit ready access.
3. The area around loading and unloading points shall be kept clear of obstructions
which could endanger personnel.
4. No person shall ride the load-carrying element of a conveyor under any
circumstances unless that person is specifically authorized by the owner or
employer to do so. Under those circumstances, such employee shall only ride a
conveyor which incorporates within its supporting structure, platforms or control
stations specifically designed for carrying personnel. Under no circumstances shall
any person ride on any element of a vertical conveyor. Owners of conveyors should
affix warning devices to the conveyor reading. Do Not Ride Conveyor.
5. Personnel working on or near a conveyor shall be instructed as to the location
and operation of pertinent stopping devices.
6. A conveyor shall be used to transport only material it is capable of handing safety.
7. Under no circumstances shall the safety characteristics of the conveyor be altered
if such alterations would endanger personnel.
8. Routine inspections and preventive and corrective maintenance programs shall
be conducted to insure that all safety features and devices are retained and function
properly.
9. Personnel should be alerted to the potential hazard of entanglement in conveyors
caused by items such as long hair, loose clothing, and jewelry.
10. As a general rule, conveyors should not be cleaned while in operation. Where
properly cleaning requires the conveyor to be in motion and a hazard exists,
personnel should be made aware of the associated hazard.

• Conveyor Start-Up

Before conveyor is turned on, check for foreign objects that may have been left
inside the conveyor during installation. These objects could cause serious damage
during start-up.
After conveyor has been turned on and is operating, check motors, reducers, and
moving parts to make sure they are working freely.

MAINTENANCE

1. Maintenance, such as lubrication and adjustments, shall be performed only by
qualified and trained personnel.
2. It is important that a maintenance program be established to insure that all
conveyor components are maintained in a condition which does not constitute a
hazard to personnel.
3. When a conveyor is stopped for maintenance purposes, starting devices or
powered, accessories shall be locked or tagged out in accordance with a formalized
procedure designed to protect all person or groups involved with the conveyor
against an unexpected start.
4. Replace all safety devices and guards before starting equipment for normal
operation.
5. Whenever practical, DO NOT lubricate conveyors while they are in motion. Only
trained personnel who are aware of the hazard of the conveyor in motion shall be
allowed to lubricate.

• Lubrication

BEARINGS
STANDARD: Supplied sealed and pre-lubricated. No lubrication required.
REDUCERS
MANUFACTURED BY HYTROL: See separate manual in Packing Envelope that
contains lubrication and maintenance instructions for HYTROL's Gear Reducer.
MANUFACTURED BY OTHERS: Refer to their recommendations.
5