TM 10-4320-317-13
Table 3-1. Troubleshooting Procedures
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
5.
PUMP SUCTION GAGE SHOWS LOW SUCTION PRESSURE.
Step 1. Check to see if butterfly valve in suction line is fully open.
Open butterfly valve.
Step 2. Check to see if butterfly valve on bypass hose is fully closed.
Close butterfly valve.
NOTE
The following step applies only to lead pumping station.
Step 3.
Check to see if wye-connection reducer is clogged with debris.
Clean wye-connection reducer.
6. PUMP DISCHARGE GAGE SHOWS HIGH DISCHARGE PRESSURE
Contact operators at downline pumping stations to see if station has been shut down.
Stop engine (refer to applicable technical manual and notify supervisor).
Section III. MAINTENANCE PROCEDURES
ALPHABETICAL INDEX
PARAGRAPH
Hose Assemblies ........................................................................ ................................ ................................ ............ 3-5
Pressure-Relief Valve ................................ ................................ ................................ ................................ ............. 3-6
Nozzle Stand Assembly ................................ ................................ ................................ ................................ .......... 3-7
Displacement and Evacuation Kit................................ ................................ ................................ ............................ 3-8
Repair it ................................................................. ................................ ................................ ................................ 3-9
3-4. Introduction. This section contains instructions covering maintenance functions for the operator on the TWDS.
Replacement procedures for most TWDS components are contained in the assembly and disassembly procedures (para.
2-8 and 2-15). Personnel required are listed only if the task requires more than one. After completing maintenance
procedure, perform operational check to be sure that equipment is operating correctly.
3-4
