TM 5-3805-248-23-2
FUEL INJECTION PUMP AND GOVERNOR ADJUSTMENT - CONTINUED
0274 00
TESTING
CAUTION
If any of the fuel injection pumps are installed wrong, the engine may over-speed (run out of control) when
started. Adjustment steps 1 through 19 must be followed to check for over-speed condition. Failure to follow
this procedure could result in damage to equipment.
1.
Remove air cleaner pipe from air cleaner (WP 0031 00).
2.
Attach injection line speed pickup group to fuel line from fuel injection pump following manufacturer's instructions.
3.
Connect to multitach.
4.
Connect battery negative ground cable to battery box (WP 0104 00).
WARNING
A thick steel plate placed over the turbocharger intake will stop engine if an over-speed condition exists.
Due to excessive suction at intake, the plate will be pulled quickly toward the intake. Exercise care to make
sure fingers are not crushed between plate and turbocharger intake. Failure to follow this procedure may
cause injury.
5.
Start engine (TM 5-3805-248-10).
6.
With assistance, observe operation of turbocharger intake on engine. If engine accelerates out of control, place steel
plate over turbocharger intake to stop engine.
NOTE
If over-speed condition is present, notify general support maintenance. If engine operates normally, proceed
with step 7.
7.
Stop engine (TM 5-3805-248-10).
8.
Disconnect battery negative ground (WP 0104 00).
9.
Install pipe on air cleaner (WP 0031 00).
10.
Operate engine and verify correct operation of fuel system (TM 5-3805-248-10).
ADJUSTMENT
1.
Connect battery negative ground to battery box (WP 0104 00).
2.
With assistance, start and keep engine running until normal operating temperature is reached (TM 5-3805-248-10).
WARNING
Exercise care when working on engine while engine is running. Stay clear of all hot and moving parts.
Instruct assistant not to engage transmission or hydraulic equipment and not to articulate vehicle. Failure to
follow this procedure may cause injury. If you are injured, seek medical aid immediately.
NOTE
Engine speed is indicated on multitach.
3.
Adjust low idle adjustment screw on governor assembly to an idle speed of 745 RPM to 905 RPM. Rotate clockwise to
increase RPM.
0274 00-7
