 |
|
 |
|
 |
|
 |
|
 |
|
|
|
|
(Operating Principles - Pre-Operational Checks)
GENERAL
Before operating the conveyor a visual inspection should be performed to ensure the equipment is ready for operation.
WARNING:
Keep the telescoping boom fully retracted and belt stopped when not in use to prevent an "accident oriented" environment from being created.
WARNING:
ANY MOVING BELT CONVEYOR CAN BE HAZARDOUS. ONLY TRAINED OPERATORS AND MAINTENANCE PERSONNEL SHOULD OPERATE OR SERVICE THIS CONVEYOR. IT IS NEVER REQUIRED TO EVER TOUCH A MOVING PART OR REACH UNDER OR INTO THE MACHINE WHILE THE MACHINE IS RUNNING. LOCK-OUT PROCEDURES MUST BE STRICTLY FOLLOWED WHEN MAINTENANCE WORK IS DONE. Operating Principles - Controls and Indicators
Operation of the Stewart Glapat conveyor is accomplished by one operator using the controls and indicators listed below. The electrical schematic shows the details of the different control panels and describes the various controls and indicators.
Table II-1 describes the functions of the various controls and indicators.
| OPERATING CONTROL | FUNCTION | POSITION |
| Circuit Breaker | Applies 480 Volt 3-Phase 60 Hz power to Conveyor Master Control Panel or operational voltage | When on applies main power to Conveyor Master Panel |
| (OPTIONAL) LOAD\UNLOAD Selector Switch | Selects direction of conveyor belt rotation | LOAD - causes belt to move away from loading dock toward truck. UNLOAD - causes belt to move away from truck toward loading dock. |
| BOOM EXTEND Pushbutton switch (spring-loaded) | Causes telescoping boom to extend | While held depressed, telescopic boom extends |
| BOOM RETRACT Pushbutton switch (spring-loaded) | Causes telescoping boom to retract | While held depressed, telescopic boom retracts |
| Belt START pushbutton switch | Starts conveyor belt motion | When pressed, starts conveyor belt motion |
| Belt STOP pushbutton switch (red) | Stops conveyor belt motion | When pressed, stops conveyor belt motion |
| (OPTIONAL) Emergency Stop Pushbutton Switch (Maintained) (Red) | Removes power from control circuit | When depressed removes power to all operating functions |
| (TRAVERSING UNITS ONLY) Traverse direction switch | Causes conveyor to travel along floor | While held in proper direction (forward or reverse) causes unit to travel |
The Stewart Glapat Extendible Conveyor can operate in three basic mode: (Items optional)
* Truck Unloading Mode
* Truck loading Mode
* Conveyor Traversing Mode
The conveyor belt drive can be reversible to allow the conveyor to function in two modes of operation, Truck Unloading and Truck Loading.
a. Initially the Motor reversing selector switch on the Master Control Panel is placed at the "Rev." position.
b. The Belt start button at a control station is pressed.
c. If the Motor starter overload relay is not in "Reset" position, unit will not operate.
d.Belt motion occurs. NEVER TOUCH A MOVING BELT.
e. The operator extends the telescoping conveyor into the truck by depressing the boom "Extend" pushbutton at the control station.
f. Product from the truck is placed on the conveyor belt and transported to the take-away conveyor (if connected).
g. If the telescoping conveyor is being extended and the safety bar comes in contact with product or other objects, the safety bar limit switch will stop the telescoping boom drive motor and apply the brake
h. If the conveyor is extended to its full extension position, a limit switch stops the boom drive motor and applies the brake.
i. When the truck unloading operation is completed, the boom is retracted by pressing the "Retract" pushbutton at the control station.
j. When the boom has fully retracted, a limit switch stops the boom drive motor and the brake is applied.
k. The belt should also be stopped when not in use.
a. Initially the Motor reversing selector switch on the Master Conveyor Panel is placed at the "Forward" position (if supplied).
b.The start button at a control stations is pressed. Belt motion occurs. NEVER TOUCH A MOVING BELT.
c. If the Motor starter overload relay is not in "Reset" position, unit will not operate.
d. The operator extends the telescoping conveyor into the truck by depressing the "EXTEND" pushbutton at the >control station.
e. Product is removed from the conveyor and stacked in the truck.
f. As the truck loading progresses, the boom may be retracted by pressing the "RETRACT" pushbutton at the control station.
g. When the truck loading is completed, the booms are retracted to the fully retracted position.
h. The belt should also be stopped when not in use.
a.Conveyor must first be completely retracted with the "RETRACT" limit switch actuated. VISUALLY INSPECT AREA OF TRAVERSE AND REMOVE ALL OBSTACLES.
b. Belt should be stopped when traversing conveyor.
c. Operator must stand on operators platform. A limit switch located under the platform must be actuated by the operators weight.
d. The operator can then travel the conveyor in either direction by pressing the toggle switch in the desired direction of travel.
e. A limit switch on each side of the conveyor rear wheels controls the maximum travel of the conveyor in either direction
Operating Principles - Controls and Indicators
1. General
2. Controls and Indicators
Operating Principles - Modes of Operation
1. General
2. Truck Unloading Mode
3. Truck Loading Mode
4. Conveyor Traversing Mode (Optional Feature)
