TM 9-2815-237-34
Change 1 2-140.19
2-35.3. (6.2L or 6.5L) FUEL INJECTION PUMPS (DB2829-4523, DB2829-4879, or
DB2831-5149) CALIBRATION USING FUEL INJECTION PUMP TEST STAND
(FTIS) MODEL A8022 (Cont’d)
1.
Set test stand in accordance with the following checklist and instructions in steps 2 through 25.
ITEM
SETTING
Bypass Valve
Open Position
Calibration Fluid System
On
Fluid Selector Valve
Injection Pump
Accumulator Switch
Right
Fluid Shutoff Valve
On
Mode Selector
Auto
Ratio Switch
1:2
Units Switch
mm3/stroke
Stroke
50
Throttle
WOT
Number of Outlets
8
Outlet Number
Between 1 and 8
Low-Limit Thumbwheel
10.0
Hi-Limit Thumbwheel
Limit Thumbwheel 40.0
Pump Rotation Selector
Counterclockwise
Temperature Select
Bulkhead
Nominal Temperature Thumbwheel
44.7
Master Power Switch
On
DC Supply Selector
17.6 Volts Energize Electric Shutoff Solenoid (ESO)
Lube Pressure
4.5 to 5.5 psi
Lube Oil System
Pushbutton On
Main Drive
Pushbutton On
Printer Switch
On
Speed Select Control
Increase/Decrease Control
2.
Set fuel injection pump per calibration chart specifications and settings in para. 2-33, 2-34, or 2-35.
3.
Secure throttle positioner arm in Wide Open Throttle (WOT) position.
4.
Turn calibration fluid pressure regulator fully counterclockwise.
5.
Press calibration fluid system on pushbutton.
6.
Adjust calibration fluid pressure regulator knob clockwise until 4.5-5.5 psi (31-38 kPa) is indicated
on the Cathode Ray Tube (CRT) monitor. Apply 17.6 volts by adjusting the variable DC voltage
supply knob to energize the electric shutoff solenoid.
CAUTION
Be aware that under no circumstances should the transfer pump
pressure exceed 130 psi (896 kPa). Excess pressure will damage
pump.
7.
Turn on main drive system by pressing main drive on pushbutton and holding button depressed for
a minimum of three seconds. Increase pump speed to approximately 150 rpm to prime transfer
pump and bleed air from the high-pressure fuel line nuts at each test nozzle.
8.
Increase pump speed to 1000 rpm. Ensure throttle lever is secured in WOT position. Run pump
approximately 10 minutes to warm the calibration fluid to 110°-115°F (43.3°-46.1°C) and bleed all
air from test stand and fuel pump. Observe transfer pump pressure reading on CRT monitor. It
should be 70-76 psi (483-524 kPa).
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