Section IV. OPERATION OF EQUIPMENT - TM-5-4320-249-140042

Section IV. OPERATION OF EQUIPMENT

b . Starting. Refer to figure 2-3 and start the pump.

2-10. GENERAL

Caution. Running the pump for extended periods of

a . Instructions in this section are published for

t i m e w i t h o u t f l u i d i n t h e h o u s i n g will

i n f o r m a t i o n and guidance of personnel responsible

damage the pump seal. Begin pump oper-

for operation of the pump.

a t i o n as soon as engine warms up after

starting.

b . The operator must know how to perform every

operation of which the pump is capable. This section

gives instructions on starting and stopping the pump

2-12. STOPPING

and basic operations of the unit. Since nearly every

j o b presents a different problem, the operator may

a . Refer to figure 2-4 and stop the centrifugal pump.

have to vary given procedures to fit the individual job.

b . If the pump has been pumping liquids containing

2-11. STARTING

a considerable amount of solids, refer to figure 3-11,

and drain the volute casing and flush with clean

--. Preparation for Starting.

water.

(1) Perform necessary daily preventive mainte-

c . Perform the necessary daily preventive mainte-

nance services for the pump (par. 3-4).

nance services (par. 3-4).

(2) Refer to figure 2-2 and check for proper setting

of inlet temperature control and oil baffle con-

2-13. OPERATION UNDER USUAL CONDITIONS

trol.

a . Start the centrifugal pump (par. 2-11).

C a u t i o n . Improper setting of the inlet temperature

and oil baffle controls can damage the

b . Refer to figure 2-6 and operate the pump.

engine by causing overheating.

B. ENGINE CONTROLS

STEP 1. OPEN FUEL SHUT-OFF VALVE (TURN TO VERTICAL POSITION).

STEP 2. REMOVE FUEL TANK CAP AND SET INNER VALVE FOR NORMAL OPERATIONS AND REPLACE

CAP.

NOTE. RESET VALVE TO FORDING OPERATIONS WHEN FORDING OR TRANSPORTING THE ITEM.

STEP 3. MOVE ENGINE SPEED CONTROL TO MID POSITION.

STEP 4. PLACE RUN-STOP SW ITCH IN. RUN POSITION. (UP).

STEP 5. DEPRESS OIL SW ITCH AND START SWITCH UNTIL ENGINE STARTS.

CAUTION. DO NOT CRANK ENGINE FOR MORE THAN 15 SECONDS CONTINUOUSLY WITHOUT

ALLOWING A TWO MINUTE COOLING OFF PERIOD. IF ENGINE DOES NOT START,

REFER. TO ENGINE MANUAL TM 5-2805-259-14, AND DETERMINE CAUSE.

NOTE . IF BATTERY IS DEAD, ENGINE CAN BE STARTED BY TURNING OVER WITH ROPE

MANUAL STARTING.

STEP 6. PLACE RUN-STOP SWITCH IN "ON" POSITION.

STEP 7. OIL SWITCH MUST BE DEPRESSED WHILE ROPE STARTING.

STEP 8. CHOKE MUST BE (CLOSED) PULLED OUT ANO HELD UNTIL ENGINE STARTS, THEN

SLOWLY PUSHED IN AS ENGINE WARMS.

STEP 9. CHECK OIL PRESSURE FOR NORMAL MINIMUM 5 PSI.

Figure 2-3. Starting the pump.

2-4