Section IV. OPERATION UNDER UNUSUAL CONDITIONS
2-12. General. This section provides instructions for operating the pump unit in unusual conditions.
a.
b.
c.
d.
Cold Climates. Extreme cold causes water in lines to freeze. If pump unit is shut down for long periods,
open pump drain plug and allow pump to drain.
For operation of equipment in protracted cold
temperatures, the choice of viscosity grade lubricating oil is specified in LO 10-4320-318-12. In cold
climates, use oil priming device for starting as follows:
• Overpricing will result
injury to personnel.
WARNING
in hydraulic lock and may cause internal engine damage and
• The use of starting aids like ether or other starting liquids will cause uncontrolled
combustion and possible engine backfire transmitted to starting handle. These conditions
may cause injury to personnel and internal engine damage.
(1)
Clean around plug area and pull plug of priming device.
(2)
Fill priming chamber with lubricating oil as used in engine crankcase.
(3)
Replace priming plug and press down.
NOTE
Under difficult starting conditions, a maximum of two primes per start is permitted.
Hot Climates. In hot climates, make sure engine receives adequate ventilation. Use the viscosity grade
lubricating oil specified in LO 10-4320-318-12.
Dusty or Sandy Conditions,
flow indicator frequently.
Salt Water Area. Check
maintenance.
Protect pump unit from sand or dust as much as possible. Check air filter
for rust formations weekly.
If rust formations are present, notify unit
2-13. Emergency Procedures. There are no emergency operating procedures for the pump unit. Refer to system
manual for emergency operating procedures.
2-12
TM 10-4320-318-14
