HOSE AS 3551341 - Caterpillar

Chart D.
Tools Needed
Part No. Description Qty.
2W-9161 Manual Shutoff Group 1
6V-4186 Timing Pin 1
6V-6070 Governor Adjusting Tool Group 1
FT-1906 Air Test Kit 1
6V-4060 Engine Set Point Indicator Group or Circuit Testing Flashlight 1
6V-9128 Rack Position Tool Group 1
4N-5656 Cover 1Note: The governor seals do not have to be cut or removed for the checking procedures that follow. For more information on the tooling and procedures, see SEVV9173 Video Tape and SEHS8463 Special Instruction available on microfiche only.
Install the rack position indicator to measure fuel rack movement. Refer to Steps 1 through 4 in the Fuel Setting Procedure of the Service Manual for the correct installation of the tooling.
Turn the engine start key ON to activate the shutoff solenoid. Do not start the engine at this time.
Move the governor control linkage to the full FUEL ON position and hold or fasten it in this position.
Install the 6V-4186 Timing Pin in the rack zeroing hole in the pump housing.
With the governor control lever in the FUEL OFF position, use a 1N-9954 Lever and move the manual shutoff shaft slowly to the FUEL OFF position (counterclockwise). Watch and make sure the timing pin drops and engages with the slot in the fuel rack.
Release the manual shutoff shaft and zero the dial indicator. Move the dial indicator in the collet to zero and tighten the collet. Make sure all three needles of the indicator are on zero.
Remove the 6V-4186 Timing Pin and watch the dial indicator movement. The indicator should show movement in the FUEL ON direction. If no movement occurs, repeat Steps 4, 5, and 6 to zero the indicator.
Release the governor control shaft and linkage.
Illustration 8
Remove the air line (3) from the engine. Put plugs over the opening to keep dirt out of the system.
Start the engine and operate it for a minimum of five minutes to get the governor and engine up to normal operating temperatures.
To help prevent an accident caused by parts in rotation, work carefully around an engine that has been started.
Illustration 9
FT-1906 Air Test Kit
(1) 8L-6557 Connector
(2) 5P-4405 Connector (two required)
(3) 5P-6011 Tube
(4) 5P-4476 Connector
(5) 6K-5741 Valve
(6) 5P-4459 Elbow
(7) 7B-0192 Cross
(8) 3B-6768 Bushing
(9) 6V-7775 Gauge
(10) 6N-3169 Hose Assembly
(11) 6V-6757 Elbow
(12) 6.35 mm (.250 in) I.D. Flexible Tubing [1.2 m (4 ft)
long]
(13) Air pressure bulb (Baumamometer No. 1890 or
equivalent).
Check the leak down rate of the fuel ratio control (with the engine operating at low idle) as follows:
Connect a pressure gauge, a shutoff valve, a pressure regulator and an air supply to the fitting from which the air line was removed.
Apply 70 kPa (10 psi) air pressure to the fuel ratio control.
Turn the shutoff valve OFF and check the leak down rate. Leakage of 20 kPa (3 psi) is 30 seconds is acceptable.
If leakage is more than 20 kPa (3 psi) in 30 seconds, the fuel ratio control must be repaired.