Section V. UNIT TROUBLESHOOTING

Table 2-1. Unit Preventive Maintenance Checks and Services - Continued - TM-10-4610-239-240038

TM-10-4610-239-24 Water Purification Unit Reverse Osmosis 600-GPH Trailer-Mounted Flatbed Cargo 5-Ton 4-Wheel Tandem Model 0996109001 Manual
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TM 10-4610-239-24

TM 08580B-24/3

Section V. UNIT TROUBLESHOOTING

SYMPTOM INDEX

Equipment

Page

Symptom

AIRBRAKE SYSTEM

1. POOR OR NO BRAKING ACTION ...............................................................................................

2-20

2. ONE BRAKE DRAGS ...................................................................................................................

2-23

3. BRAKES DRAG OR REMAIN LOCKED ............................... ........................................................

2-25

4. TRAILER ROLLS WHEN DISCONNECTED FROM TOWING VEHICLE ......................................

2-25

5. BRAKES SLIP .................................................... ..........................................................................

2-26

FLATBED CARGO TRAILER ELECTRICAL SYSTEM

1. ALL LAMPS FAIL TO LIGHT ....................................... .................................................................

2-27

2. ONE OR MORE LAMPS FAIL TO LIGHT .....................................................................................

2-28

3. DIM OR FLICKERING LAMPS ...................................... ...............................................................

2-32

SUSPENSION ASSEMBLY

1. WHEELS WOBBLE OR SHIMMY .................................... ............................................................

2-34

2. WHEELS ARE NOISY ..................................................................................................................

2-34

3. TRAILER VIBRATES WHEN BEING TOWED .......................... ...................................................

2-36

4. TIRES WEAR UNEVENLY .......................................... .................................................................

2-36

ROWPU ASSEMBLY

1. ROWPU LEAKS WATER ............................................ .................................................................

2-37

2. ROWPU LEAKS CHEMICALS ....................................... ..............................................................

2-38

3. ALL PUMPS FAIL TO START ........................................ ..............................................................

2-39

4. EXCESSIVE NOISE OR VIBRATION DURING OPERATION ............. .........................................

2-39

INSTALLATION PIPING

1. HIGH-PRESSURE RELIEF VALVE OPENS REPEATEDLY .........................................................

2-40

2. RUPTURE DISK RUPTURES ........................................ ..............................................................

2-40

BOOSTER PUMP ASSEMBLY

PUMP ASSEMBLY IS NOISY DURING OPERATION .........................................................................

2-42

CHEMICAL FEED METERING PUMP ASSEMBLY

1. PUMP FAILS TO PRIME ..............................................................................................................

2-42

2. INADEQUATE FLOW OF ONE OR MORE CHEMICALS ................. ............................................

2-43

3. PUMP ASSEMBLY IS NOISY DURING OPERATION .................... ..............................................

2-43

R.O. PUMP ASSEMBLY

1. PUMP DRIVE BELTS FRAY AFTER SHORT USE OR BREAK

FREQUENTLY ................................................. .....................................................................

2-44

2. PUMP ASSEMBLY IS NOISY DURING OPERATION ................ ..................................................

2-44

3. R.O. PUMP SHUTS DOWN OR FAILS TO START - LOW

PRESSURE INDICATOR LIGHTS ................................ ...................................................

2-45

4. R.O. PUMP SHUTS DOWN OR FAILS TO START - HIGH

PRESSURE INDICATOR LIGHTS ................................ ...................................................

2-46

5. PUMP KNOCKS EXCESSIVELY ..................................................................................................

2-46

2-16

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