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8 June
2007 |
SERVICE BULLETIN
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Number
07-6 |
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Indexing a New Style Bull Gear
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This
procedure will work on all machines with a rotatable bull gear.
The pinion should be changed whenever you rotate the bull gear.
- Stop
the machine just as the pallet receiver frame starts up. Turn off the
power. Let machine drift to a neutral position (see Figure 1).
Figure
1
- Lock
out machine main panel.
- Remove
nuts and lock washers from bolts which hold bull gear to the hub. These
are the unpainted bolts (see Figure 2). There are six bolts on a V3-12
and eight on the Dynapac and larger machines.
Figure 2
- Slide
the bolts back against the machine frame (see Figure 3).
Figure 3
- Pry
bull gear away from frame until it clears edge of bolts
- Rotate
bull gear two holes clockwise.
- Move
bull gear back into position over the bolts.
- Re-install
lock washers and nuts.
- Tighten
nuts in a criss-cross pattern as you would an engine head to be sure the
bull gear is securely against the hub flange (see Figure 4).
Figure 4
- Torque
the nuts to the required foot pounds for a one inch bolt which is
230-250 foot lbs.
- It
is strongly recommended that the pinion gear be replaced when indexing
the bull gear.
- After
eight hours of running re-torque the bolts again.
- After
16 hours of running check bolts one more time and tighten if necessary.
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. |
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