Table 2-1. Operator Preventive Maintenance Checks and Services

TM 3-1040-279-12&P

2-7 SPECIAL INSTRUCTIONS. (cont)

Class II. Leakage of fluid great enough to form drops, but not enough to cause drops to drip from

item being inspected.

Class Ill. Leakage great enough to form drops that fall from the item being inspected.

b. Perform Before PMCS if:

(1) You are the assigned operator and have not operated the equipment since the last mission.

(2) You are operating the equipment for the first time.

c. Mission Capability. The M157 Smoke Generator Set will be considered mission capable if at least

one M54 Smoke Generator can produce smoke obscurant in the static or mobile mode of operation.

Table 2-1. Operator Preventive Maintenance Checks and Services

Not Fully

Procedure

Item

Interval

Location

Mission

Item to Check/

No.

Capable lf:

Service

Spares or tools not available.

On-Board

BEFORE

Check for missing on-board

(Only two spare indicator

Spares and

spares and tools (App C).

lamps per box need be

Tools

Replace missing spares or

available.)

tools.

Fire extinguisher is missing,

Fire

BEFORE,

Check both fire extinguishers

pressure gage indicates in

AFTER

Extinguisher

for availability, a full charge,

discharge area, or seal is

and unbroken seals.

broken.

Fuel Cans

CAUTION

If new fuel can lid assemblies

are secured to the new plastic

fuel cans, leave attached. This

will prevent damage to the

plastic threads.

If fuel cans have to be

removed from the vehicle,

remove hose lines at the lid

assembly flare fitting ends

only. Tape over hose flare

fittings.

Class II or III fuel leaks are

BEFORE,

a. Check that all hoses (1)

found.

AFTER

(supply, return, and vent)

are connected and tight to

flare fittings (2) of both fuel

can lid assemblies (3).

Check that fuel can lid

assemblies are connected

to fuel cans.

Change 4

2-6