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The following suggested running, cleaning and
maintenance procedures will help keep the discharge gate seal from leaking
and wearing out prematurely. If this procedure is not followed, the
discharge gate seal may wear and become damaged, causing excessive leakage
around the discharge gate and premature wear of the seal assembly. Proper
care and cleaning techniques of the discharge gate seal will help keep the
seal in good working order and provide the best seal life.
Safety First:
Stay clear of the mixer until the mixer is off, the main
panel is locked out, and all mixer component motions are stopped.
Follow standard safety procedures when working on the mixer,
including safety procedures and suggested lockout procedures in the mixer
catalog and suggested lockout/tagout procedures per safety sign 113249F0410.
Safe access must be provided to get to the discharge gate
area to allow the above to be accomplished.
Procedure:
- When running the discharge gate make sure that the material either in
the holding hopper or the skip hoist, is not piled up forcing the
discharge gate to plow through it when closing.
- Open the discharge gate and clean the seal by hand. Make sure the seal
is free of any concrete buildup. Do not use high pressure water or air
to clean the seal.
- Clean the area around the discharge gate where the seal makes contact
with the mixer shell. Make sure this area is free of any concrete
buildup.
- After cleaning the seal, apply a thin coat of release agent to the
seal and mixer shell (make sure the release agent is a type that will
not attack the rubber in the seal).
- Leave the discharge gate open after cleaning. This will allow the seal
to dry and also does not leave the seal material compressed.
- When cleaning, look at the condition of the seal. Check for wear or
damage and schedule replacement as needed.
- The discharge gate seal should be cleaned at the end of each shift (8
hours), or as needed, if heavy buildup is noticed on seal.
- If the discharge gate has a vibrator, make sure that it is working
properly.
Before the mixer is started:
1. Properly close and secure the front panel.
2. Make sure all personnel are clear.
3. Make sure all guards and safety devices are properly
installed.
Refer to your parts manual for ordering parts for your EM
Mixer.
SAFETY BULLETIN
This notice is issued to advise you that some previously
accepted shop practices may not be keeping up with
changing Federal and State Safety and Health Standards. Your current shop
practices may not emphasize the need for
proper precautions to insure safe operation and use of machines, tools,
automatic loaders and allied equipment
and/or warn against the use of certain solvents or other cleaning substances
that are now considered unsafe or prohibited by
law. Since many shop practices may not reflect current safety
practice and procedures, particularly with regard to the safe operation of
equipment, it is important that you
review your practices to ensure compliance with Federal and State Safety and
Health Standards.
IMPORTANT
The operation of any machine or power-operated device can
be extremely hazardous unless proper safety precautions
are strictly observed. Observe the following safety precautions:
Always be sure proper
guarding is in place for all pinch, catch, shear, crush and nip points.
Always be sure that
all personnel are clear of the equipment before starting it.
Always be sure the
equipment is properly grounded.
Always turn the main
electrical panel off and lock it out in accordance with published lockout/
tagout procedures prior to making adjustments,
repairs, and maintenance.
Always wear
appropriate protective equipment such as safety glasses, safety shoes,
hearing protection and hard hats.
Always keep chemical
and flammable material away from electrical or operating equipment.
Always maintain a
safe work area that is free from slipping and tripping hazards.
Always be sure
appropriate safety devices are used when providing maintenance and repairs
to all equipment.
Never exceed the
rated capacity of a machine or tool.
Never modify
machinery in any way without prior written approval of the Besser
Engineering Department.
Never operate
equipment unless proper maintenance has been regularly performed.
Never operate any
equipment if unusual or excessive noise or vibration occurs.
Never operate any
equipment while any part of the body is in the proximity of potentially
hazardous areas.
Never use any toxic
flammable substance as a solvent cleaner.
Never allow the
operation or repair of equipment by untrained personnel.
Never climb or stand
on equipment when it is in operation.
It is important that you review
Federal and State Safety and Health Standards on a continual basis. All
shop supervisors, maintenance personnel, machine
operators, tool operators, and any other person involved
in the setup, operation, maintenance, repair or adjustment of Besser-built
equipment should read and understand this
bulletin and Federal and State Safety and Health Standards on which this
bulletin is based. |
