TM 3-4230-237-10
0016 00
OPERATOR'S PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS) - Continued
Table 1. Before Operation PMCS for M12A1 DED Decontaminating Apparatus - Continued.
STARTINGPROCEDURE
CAUTON:Donot operate pumpdryorwhen discharge pressureis below 60p.s.i.g.
I
DECONTAMINATING APPARATUS M12A1
READ THEMANUAL
SERNO.
1.Checkallvalve settingsbefore startingandclose all circuit breakers before starting.
2.If temperatureisbelow 40 degrees Fahrenheit,activateenginepre-heater for10seconds.
3.Turn startingswitch to start.
BATTEETER
VOLTM-
NSN
4.Whenenginestarts,releasestart switchtorunposition.
5.Checkallgages to insure properoperation.
VALVEPOSITION
PBAU PGRADE DATE
6.PrimeDetergent Valve#4 must beclosed whenPrime-Detergent tank is empty.
O -OPEN X- CLOSED
REMARKS
U.S.
PRIME DRY PUMP
*
**
*TOTANK AGITATORCONNE T ON E INCH HOSE
C
26
1.
TURN ON FUELSUPPLY
--
S
ON CAP O
X
X
O
**OPENFOR 1MINUTE BE ORE STARTING, THEN
F
START (SEE PROCEDURE)
CLOSE TOHALFWAYFOR REMAINDEROF PRIME
OPERATION(SEE 6 ABOVE)
*
2.
FILL TANK WITHWATER
1
S
ON CAP O
X
X
X
*TOAGITATOR CONNECT ONE INCHHOSE
*
3.
BLEND SLURRY
2
T
ON CAP O
X
X
X
*TOTANK BLENDERADD ANTISET
THENADD STB.
*
4.
AGITATE SLURRY
3
T
ON CAP O
X
X
X
*TOTANK AGITATOR
HEATER OFF
DIS HARGE UPP R REEL 2,3
C
E
T
CAPCAP
O
X
O
X
REATEPTACLE OFF
HE ER
C
5.
SLURRY
LOWER REEL 2,3
T
CA CAP
P
O
O
X
X
RECEPTACLE
AND SWITCH
AN D
S/
ON
D IS HARGE UPPER REEL 1
C
/T
CA CAP
P
O
X
O
X
LOW W IL
LO O
SWITCH ON
6.
S/
WATER
LOWERREEL
1
/T
CAP
CAP O
O
X
X
OIL PRESSURE
S/
*
**
*FROMHEATER
D IS HARGE UPP R REEL
C
E
1
/T
ON
ON
X
X
O
X
**TOHEATER
LIGHT
7.
S/
*
**
*FROMHEATER
H OT W TER LOWER REEL 1
A
/T
ON
ON
X
O
X
X
**TOHEATER
CAUTION
8.
PUMP WATERONLY
S/
*
TOHEATEROR OTHER
1
/T
ON CAP
O
X
X
X
*TOHEATER OR OTHE
R
DISCHARGE FOAM
S/
*
TO AVOID FREEZE DAMAGE KEEP PUMP
UPPER REEL
1
/T
CAP CAP O
X
O
O
*ADJUSTFOR PROPERBLEND
9.
DRAIN VALVE OPEN WHEN EQUIPMENT IS
ORDETERGENT
S/
M AIN
LOWERREEL 1
/T
CA CAP O O
P
X
O
*ADJUST FOR PROPER BLEND
NOT IN OPERATION.
SIYSUIEM
C RC T T
10.
FLUSH SYSTEM
1
S
OPENTANK DRAIN ANDFLUSHTANK THOROUGHLY, THEN OPENPUMP DRAIN
AND FLUSH HOSER E LS AND DISCHARGE CONNECTIONS (SEE MANUAL)
E
B REA K ER
11. SHUTDOWN PROCEDURE
TURN START SWITCH TOOFF POSITION.
CAP ALLPIPES AND CLOSE ALL VALVES EXCEPT PUMP DRA NVALVE.
I
OPEN ALLCIRCUIT BREAKERS
.
IGNITISTOPITCH
ON SW
STOP
RUN
START
ENGINE
PRIR EAT
C -HUIT
EC
RETURN FUEL
FUEL OUT
PRE-HEAT
TO TANK
CIRCUT
I
TO BURNER
SWITCH
BR AKER
E
DRAIN
DRA-
OP- N
CLOSED
CL OS-
OPE
CAUTION: ENSURE PROPER
ENGAGEMENT OF QUICK
DISCONNECT COUPLINGS
Procedure
Not Fully
Item
Interval
Man
Item to be
Mission
No.
Hour
Checked/
Capable If:
Serviced
Pump Unit
(Cont)
a. The control panel can be inspected without having
Control Panel
BEFORE
26
to remove it from the pump unit assembly. Wipe all
Assembly
switches and gages with cloth to remove accumulated
dirt. Clean the control panel with a cloth (Page 0028
parts or damaged leads. Inspect gages for cracked
dials.
b. Inspect that HEATER RECEPTACLE AND
SWITCH is securely fastened to the control panel.
Light does not
c. Turn IGNITION switch to RUN but do not start
illuminate.
engine. LOW OIL PRESSURE LIGHT should
illuminate.
0016 00-15
