EHAT TSET 3
How many support brackets secure the belt cover to the structural frame of the shredder ?
1
21. What is the approximate seawater pressure that must be supplied to the small pulper during operation ?
10 Psi
18. How far away from the United States ( U.S. ) coastline do you have to be in order to operate the large pulper ?
3 nautical miles
How long does the shredder operate before it automatically shuts down ?
60 sec
Where is the large pulper conductivity sensor located ?
ATTACHED TO THE STAND PIPE'S QUICK DISConnect
What component ( s ) stop the Plastic Waste Processor's ( PWP ) Compressed Melt Unit's (CMU) operations
Air flow Switch
What colors of wire are contained in the shredder's cable W1017
Black , white red green
43. What component de - pressurizes the Plastic Waste Processor's ( PWP ) Compressed Melt Unit ( CMU ) during a fault condition ?
Blocking valve
What ship's system supplies the cooling water for the Plastic Waste Processor's ( PWP ) compressed melting init (CMU)
Fire main
What electrical test is conducted prior to removing the large pulper conductivity sensor for inspection ?
IVV check
Under what condition must a space ventilation air flow switch be installed in the shredder compartment ?
If the compartment is ventilated by different fan than one that vents the shredder, tie space ventilation airflow switch is used
What causes the Plastic Waste Processor's PWP ) airflow switch to actuate ?
Indde quale airflow
What do the large pulper door proximity switches have that give a visual indication that the doors are closed properly ?
LED
What gives a local indication that the large pulper junkbox door is closed ?
LED
What component provides access to the large pulper interior to facilitate cleaning ?
Lower shell DOOR
Which large pulper component provides a visual indication of a problem , other than the message display unit ?
Motor current meter
What must the valve , before securing the terminal electrician do after installing the garbage grinder's new motor operated box cover ?
Moy terminals Connections at the control panel reconnects main TB
In addition to the Technical Manual for Shredder , Plastics , which reference is used for replacing the shredder's motor cable ?
NSTM 300 Chapter 4.6 maintenance of cables and cable fittings
What type of water does the 3 garbage grinder use during operation ?
Only fresh water
What component restores the water supply to the garbage grinder ?
Open up gate valve by turning the hand wheel ccw
What gives a visual indication that the safety devices have power during troubleshooting of the large pulper ?
PLC
44. What is the purpose of the Plastic Waste Processor's ( PWP ) Compressed Melt Unit's ( CMU ) shunt trip ?
Removes power to the cmu during an over temperature condition
What Plastic Waste Processor's ( PWP Compressed Melt Unit's ( CMU ) components during operations
Safety cover
What component determines the garbage grinder's rate of grinding ?
Sizing ring
30. What component of the feed hopper can prevent the shredder from operating ?
Sorting tray door latch assembly
What size wrench is required to perform the differential pressure switch ( DP1 ) replacement procedures ?
TWO 11/16 Inch open end wrench
Where are the Initial Voltage Verification ( IVV ) check points to verify the small pulper is de - energized ?
Terminal L1 , L2 , L3 main Switch out going side
What large pulper assembly includes the feed tray ?
Upper shell assembly
Which of the of the small pulper's valves must be closed to isolate the differential pressure switch ( DPI ) ?
V4,V8,V9,V11,V12
23. What small pulper valve is in the closed position during operation ?
V7 Drain valve
29. What small pulper's valves ' drain caps must be opened to drain any water trapped around the differential pressure switch ( DP1 ) ?
V8 and V9
What could be causing the garbage grinder's pulping rate to be below normal besides inadequate water supply ?
a . Dull cutting edge b . Excessive quantities of Harder to pulp Solid
What are the probable causes are listed in the small pulper's Troubleshooting table for the error message , " 04 ) LOW WATER FLOW , Correct and Restart
a.A loss of sea water flow b.a loss of LP air pressure to the V1 actuator c. a fault with DP1 d. a fault with PLC input module I1, terminal A7 e. Associated wiring gone bad
What should the nominal resistance value of the shredder's motor windings be ?
between 1.1 ohms and 2.1 ohms
25. How does the troubleshooter verify that sea water pressure is in the small pulper's operational range ?
check for a loss of sea water flow by reading GA1
If there is waste material binding the impeller , and the small pulper is allowed to run for a period without additional waste being fed into the slurry chamber the condition commonly
clears itself
Close the garbage grinder's gate valve by turning the handwheel
clock wise
. In addition to the overload ( OL ) relay , which component in the shredder's control enclosure is included when checking the resistance of the motor windings ?
contactor MR terminal 4
What component contains the garbage grinder's sequencing controls ?
control panel
Where is the garbage grinder's system disconnect located ?
control panel
When checking the resistance of the shredder's motor windings , why start at the control enclosure instead of the motor terminal box
easier access to check resistance
What type of water does the 3S Garbage grinder use during operation ?
fresh water / Seawaler
Before removing the garbage grinder's motor operated valve , the electrician must remove the
nearest union fitting
The large pulper tank assembly consist of ...
upper shell lower shell Slurry chamber
The ______ indicator tells the large pulper operator when it is ______NOT SAFE to feed pulpable waste into the pulper .
•DONT FEED - not safe •WAIT - must wait •FEED- safe
