TM-9-2910-226-34
PUMP, FUEL, METERING AND DISTRIBUTING, ASSEMBLY
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT, MAINTENANCE MANUAL INCLUDING REPAIR PARTS AND SPECIAL TOOLS LISTS
JUNE 1974
TM-9-2910-226-34 - Page 140 of 208
TM 9-2910-226-34
Table 3-3. Typical Test Stand Accessory Kit
d.
All fuel injection pump assemblies, including
fuel density compensator where applicable, shall be
tested and adjusted on the fuel metering and
distributing pump test stand prior to assembly on an
engine or returning the pump assembly to stock.
e.
Depot overhauled pump assemblies shall be
tested in accordance with paragraphs 3-51, 3-57, and
3-58.
f.
Repaired pump assemblies shall be tested in
accordance with paragraphs 3-51 through 3-58.
g.
Pump assemblies removed from engines shall
be tested in accordance with paragraphs 3-51, 3-57,
and 3-58 to determine if pump repair is necessary. If
repair is necessary, follow procedures in
f
above.
3-51. Installation of Fuel Injection Pump on Test
Stand.
a.
Remove the fuel injection pump drive gear
and hub (if on pump to be tested).
b.
Install adapter ring, Part No. 11020376, on the
fuel injection pump.
Torque tighten the three
mounting bolts to 27-35 foot-pounds.
c.
Install fuel injection pump and adapter ring on
the test stand adapter bracket, Part No. 11020392.
Torque tighten the four mounting bolts to 27-35
foot-pounds.
d.
Lubricate the adapter ring oil seal and install
the test stand pump hub, Part No. 11020384, and
Woodruff key on the injection pump shaft and secure
with retaining nut and lockwasher. Torque tighten
nut to 65-70 foot-pounds.
NOTE
Do not remove any elbows or fittings from
the pump. Fabricate necessary connections
and fittings to install pump on the test
stand.
e.
Lubricate the test stand rails with test oil and
place the fuel injection pump and bracket on the
rails.
f.
Position the fuel injection pump on the test
stand drive coupling allowing a minimum of 1/16
inch clearance between the hubs. Clamp pump
bracket securely in position.
g.
Improvise a manifold composed of a 3/8 in.
flare tube to ¼ in. 45-degree pipe elbow (G, fig. 3-
163), ¼ in. pipe tee (H), ¼ in. pipe to ½ in. flared
tube adapter (J), and ¼ in. pipe to ¼ in. flare tube
adapter (K) (on all pumps except code G). On code G
pumps only, install improvised adapter manifold
into hydraulic head inlet fitting after hydraulic head
port closing test, delivery valve test, and hydraulic
head leak test.
3-52. Preparation for Hydraulic Head Tests.
a.
Disconnect density compensator overflow line at
pump overflow valve.
b.
Remove overflow valve and plug openings with
¼ in. and 1/8 in. pipe plugs.
c.
Remove density compensator to hydraulic head
fuel line.
d.
Position the nozzle tester on the right corner of
the test stand (fig. 3-164).
A
B
C
D
E
F
G
H
J
K
KEY to fig. 3-163
Test stand fuel pressure to supply pump inlet hose
Supply pump outlet to compensator inlet hose
Compensator inlet tee to pressure gage hose
Overflow valve to test stand fuel return hose
Test stand lube pressure to fuel injection pump hose
Fuel injection pump lube return to test stand lube
return hose
Elbow, 45-degree, 3/8 inch flare tube to 1/4 inch
pipe
Tee, 1/4 inch pipe
Adapter, 1/4 inch pipe to 1 /2 inch flare tube
Adapter, 1/4 inch pipe to 1/4 inch flare tube
3-94
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