TM 55-1925-285-13&P
UNIT MAINTENANCE
OIL WATER SEPARATOR FOR
INLAND AND COASTAL LARGE TUG (LT)
UNIT TROUBLESHOOTING PROCEDURES
INITIAL SETUP:
Tools and Special Tools:
References (continued):
Tool Kit, General Mechanic's (Item 1, Table 2,
TM 55-1925-273-10
WP 0023 00)
To o l K i t , E l e c t r i c i a n ' s ( I t e m 2 , Ta b l e 2 ,
WP 0023 00)
WP 0013 00
WP 0014 00
Personnel Required:
WP 0015 00
Two Watercraft Engineers, 88L
WP 0016 00
WP 0017 00
References:
WP 0018 00
FM 55-509
WP 0023 00
INTRODUCTION
The following troubleshooting procedures are included in this work package:
Malfunction/Symptom
Procedure
Vacuum Unusually High During Normal Processing ..................................................................
1
Vacuum Unusually Low During Normal Processing ...................................................................
2
OWS Pump Deadheaded .........................................................................................................
3
Low or No Effluent Discharge ....................................................................................................
4
High Oil Content in Effluent .......................................................................................................
5
OWS Relief Valve Opens or Fails to Reseat .............................................................................
6
OWS Fails to Operate in MAN Mode ........................................................................................
7
Frequent Oil Discharge .............................................................................................................
8
Oil Does Not Discharge (Backflush) From OWS .......................................................................
9
Pump Noisy ...............................................................................................................................
10
OCM POWER ON Indicator Does Not Light .............................................................................
11
OCM WARNING 1 (Red LED) Lit ..............................................................................................
12
OCM WARNING 2 (Red LED) Lit ..............................................................................................
13
OCM WARNING 3 (Red LED) Lit ..............................................................................................
14
OCM WARNING 2 and WARNING 3 (Red LEDs) Lit ................................................................
15
Unstable Oil Content Display, PPM Values Jump High, Then Low ............................................
16
OWS Discharge Is Diverted Inboard When OCM Detects Less Than Alarm Limit ....................
17
Remote Indicator (Alarm) Assembly Indicators Inoperative While OCM Is Operating ...............
18
PUSH TO CHANGE ALARM LIMIT Switch A2S1 Does Not Change Alarm Limit of OCM .........
19
Audible Alarm Inoperative When OCM Is in ALARM Mode .......................................................
20
Diverter Solenoid Valve Works Opposite to Intended Control Function .....................................
21
0009 00-1