TM 9-2320-279-20-3
M978 Tanker Maintenance Instructions (Cont)
c. Installation.
WARNING
Adhesives, solvents, and sealing
compounds can burn easily, can give off
harmful vapors, and are harmful to
skin and clothing. To avoid injury or
death, keep away from open fire and
use in well-ventilated area. If
adhesive, solvent, or sealing compound
gets on skin or clothing, wash
immediately with soap and water.
(1)
(2)
Apply pipe thread sealing
compound and install
bushing (1) in pump (2).
Apply pipe thread sealing
compound to both ends of
nipple (3) and install in
bushing (1).
(3)
(4)
Install drain valve (4) on
nipple (3).
Apply pipe thread sealing
compound and install fitting (5)
on drain valve (4).
(5)
Install hose (6) on fitting (5) with clamp (7). Close drain valve (4).
NOTE
There are two models of primary pump. Model A pump does not include discharge elbow
and suction flange. Model B pump is supplied with discharge elbow and suction flange
installed. Do steps (6) through (9) if installing Model A pump. Skip steps (6) through (9)
and continue with step (10) if installing Model B pump.
(6)
(7)
(8)
(9)
Apply silicone adhesive-sealant and install gasket (8) on pump (2).
Install suction flange (9) with four nuts (10). Tighten nuts to 34 lb-ft (46 N•m).
Apply silicone adhesive-sealant and install gasket (11) on pump (2).
(10)
Install discharge elbow (12) with
four nuts (13). Tighten nuts to
34 lb-ft (46 N•m).
Fill pump (2) with one-half
gallon clean fuel of same type as
in tanker. Install fill plug (14.
CAUTION
Do not tear or otherwise damage
coupling gaskets during installation. If
coupling gaskets are damaged, piping
connections will leak.
(11)
Install coupling gasket (15) and
reducer (16) on suction
flange (9).
(12)
Install coupling gasket (17) on
discharge elbow (12).
Change 3
25-29
