TM 5-3805-254-20-1
PREHEATER PRIMER PUMP -CONTINUED
ACTION
LOCATION
ITEM
REMARKS
INSTALLATION
9.
Pre-heater primer
Outlet fitting (2)
Screw in and tighten, using 1/2-inch open-
pump (1)
and inlet
end wrench.
fitting (3)
Position fittings to face rear of pre-
heater primer pump.
10.
Nut (4) and
a. Using 6-inch machinist’s scale, meas-
washer (5)
ure distance from washer to edge of
threads.
Distance should be 1/2 inch
(1.27 cm).
b. Turn nut to adjust as required.
11.
Dashboard (6)
Preheater primer
Put in.
pump (1)
Position rear of preheater primer
pump horizontal to dashboard.
12.
Preheater primer
Nut (7)
Screw on and tighten using 13/16-inch
pump (1)
open-end wrench.
13.
Collar (8) and
a. Collar must seat against preheater
locknut (9)
primer pump.
b. Aline pins on shaft with slots in locknut
and put on.
14.
Locknut (9)
Screw on and tighten using 13/16-inch
open-end wrench.
15
Shaft (10)
Pull out.
16
Shaft (10) and
Hold shaft using 6-inch slip-joint pliers and
knob (11)
screw on and tighten knob.
NOTE
Inlet and outlet fuel lines are tagged INLET and OUTLET. Inlet side of preheater primer pump is
stamped INLET.
2-486
