Remove four screws (1), washers (2), and
plate (3) from power plant compartment
wall. Discard plate.
Install exhaust pipe (4) on lower elbow (5)
and upper elbow (6). Secure with two
clamps (7). Do not tighten clamps.
Install lower elbow (5) on coolant heater (8).
Secure with clamp (7). Do not tighten
Install upper elbow (6) and gasket (9) on
power plant compartment wall opening.
Secure with four screws (1) and
Tighten three clamps (7).
Raise and secure map table (10).
Remove three wing nuts (11) and battery
box cover (12) from battery box (13).
Remove batteries from battery box (13)
(see your 20). Clean battery box and bat-
tery box cover (12) (see TM 9-6140-200-14).
W A R N I N G
P - D - 6 8 0 is
flammable. Always use in
an open area with good air
flow, away from sparks,
h e a t , o r f l a m e s .
Do not breathe
vapors. Avoid contact with skin, eyes, and
clothes. If you get dizzy while using
solvent, breathe fresh air and get medical
help. If solvent gets on hands, wash them.
If solvent gets in eyes, flush eyes with
and get medical help
Keep fire extinguisher
27. Clean battery box (13) and battery box cover
(12) with dry cleaning solvent.
W A R N I N G
Vapors from methyl isobu-
tyl ketone are harmful. Use
only with good ventilation.
Avoid prolonged breathing
of vapors and contact with
28. Renew adhesive backing on all insulation
isobutyl ketone. Wait 10
adhesive becomes tacky.