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2. After locking out power, turn drive unit by hand to check for alignment and obstructions.
3. Once conveyor and drive turn freely, momentarily start the motor for a few revolutions and check for proper screw rotation, ( Review Safety Procedures before startup, see Page 2.)
4. Start unit and operate empty for a few minutes to check for unusual noise, vibrations or loose fasteners.
5. When unit is operating smoothly, begin conveying the material and check system for proper operation.
Routine Inspection And Maintenance
Always lock out power before removing covers or guards.
1. Periodic inspection should be made of the following components during operation. ( Lock Out Power before inspection)
a. All internal and external bearings for wear of bearing or shaft.
b. Flight edge thickness for wear or damage.
c. Coupling bolts at drive shaft. Remove and inspect bolt and hole for wear.
d. All coupling bolts and nuts for external wear or loss.
e. Seals for leakage.
f. Bearing, flange and cover bolts for loose or missing nuts.
g. Gasket joints for leaking.
2.
Several types of bearings may be used on screw conveyors, some of which require periodic lubrication. Frequency of lubrication varies depending upon material being conveyed, temperature, speed
and operating time.
a. Ball bearings in hangers, or at tail end or discharge end are furnished with grease fittings (for periodic lubrication).
b. Roller bearings, when used on conveyor ends for drive or thrust loads, should be routinely lubricated. Over greasing may cause seal damage and early failure.
SAFETY
Your Newton Conveyor screw conveyor has been designed to comply with CEMA safety standards. These safety standards can be obtained through the American Society of Mechanical Engineers as
ANSIB20. 1-b 1989. These standards should be consulted before installation and operation of the screw conveyor.
Screw conveyor safety begins with a plan that considers every possible danger and potential hazard.
Operating and maintenance personnel should be thoroughly trained in safe operating procedures, recognition of possible hazards and maintenance of a safe area around the screw conveyor.
The following safety guidelines
should be followed. These are guidelines only and compliance with safety standards - local, state and federal, including OSHA - is the responsibility of the user of the screw conveyor equipment.
1. Maintain a safety program for all operating personnel.
2. Screw conveyors should not be operated unless the conveyor housing completely encloses the conveyor's moving elements and power
transmission guards are in place. If the conveyor cover, housing or guards are to be opened, the motor must be locked out electrically
in such a way that it can not be restarted. Overflow cover sections or doors should not be opened while the conveyor is operating.
3. All operating personnel should be advised of the location of all emergency controls and safety devices. Clear access should be made to these controls and devices.
4. Good lighting, housekeeping and maintenance contribute to a safe working area around the screw conveyor.
5. Frequent inspections should be made of all conveyor equipment. All safety devices should be in position and in proper working order.
6. Conduct a pre-startup safety check of the conveyor equipment to
determine that the machinery and area are safe for operation and that guards and warning devices are in place.
7. There should be absolutely no reckless actions or horseplay in the vicinity of screw conveyors.
Most accidents are caused by lack of proper safety training, carelessness, horseplay and lack of awareness of possible hazards.
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