TM 10-4320-310-14
6-9.
REPLACE/ADJUST INJECTION PUMP (Continued)
WARNING
Dry cleaning solvent P-D-680 (safety or Stoddard's Solvent)
is potentially dangerous. Avoid repeated and prolonged
breathing of vapors and skin contact with the liquid. Do not
use near open flame, arcing equipment, or other ignition
sources. Always wear eye protection and protective
clothing. The flash point of P-D-680 is 100°F to 138°F
(38°C to 59°C).
Death or serious injury could occur if compressed air is
directed against the skin. Do not use compressed air for
cleaning or drying unless the pressure is/has been reduced
to 30 psi (2.06 bar) or less. When working with compressed
air always use chip guards, eye protection, and other
personal equipment.
4
Clean all parts with clean dry cleaning solvent and dry with low pressure compressed air.
5
Inspect mating surface of injection pump for roughness or other damage. Scratches or other damage may result in
pressure leaks. Check wear at contact areas. Replace injection pump if worn.
INSTALLATION:
1
Install tappet (1) into crankcase (2).
2
Turn engine by hand until tappet (1) reaches the lowest
point of cam (3).
3
Position throttle control hand lever so that governor lever
(4) slot lies exactly in the center of the tappet bore.
4
Install plate (5), with the flat surface toward injection pump
(7).
5
Place shim pack (6) on crankcase (2) studs.
6
Apply a bead of RTV sealant around injection pump (7)
mating surface.
7
Position control sleeve on injection pump (7) so that
control sleeve pin enters slot in governor lever (4).
8
Insert injection pump (7) carefully without moving the
control sleeve out of its proper position.
NOTE
No resistance should be felt until the pump is within 0.160
Inch (4 mm) of the crankcase, then a resistance due to
initial load of plunger spring can be felt.
6-29
