- 1. Drain water and sediment from the fuel tank.
- 2. Check and service as required:
- a. Engine cooling system hoses.
- b. Power take-off.
- 3. Change the fuel filter element.
- 4. Clean the fuel lift pump sediment chamber.
- 5. Lubricate in accordance with the Lubrication Chart.
Draining The Water And Sediment From The Fuel Tank
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INADVERTENT STARTING OF THE ENGINE COULD CAUSE PERSONAL INJURY. SHUT THE ENGINE DOWN AND REMOVE THE KEY FROM THE IGNITION SWITCH. |
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- 1. Close the shutoff valve at the rear of the fuel tank.
- 2. Disconnect the fuel line from the shutoff valve and plug the fuel line opening.
- 3. Connect a suitable length of hose to the shutoff valve and run the hose over the side of the mainframe and into a container.
- 4. Open the shutoff valve.
- 5. Allow fuel to drain from the tank until the fuel is free of water and sediment.
- 6. Close the shutoff valve.
- 7. Remove the hose and reconnect the fuel line.
- 8. If necessary, prime the fuel system (see page 4-35).
Checking The Engine Cooling System Hoses
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INADVERTENT STARTING OF THE ENGINE COULD CAUSE PERSONAL INJURY. SHUT THE ENGINE DOWN AND REMOVE THE KEY FROM THE IGNITION SWITCH. |
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Check the hoses for signs of deterioration, such as cracking or softness. Remove any fuel or oil from the hoses and tighten any loose clamps.
Checking The Power Take-Off
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INADVERTENT STARTING OF THE ENGINE COULD CAUSE PERSONAL INJURY. SHUT THE ENGINE DOWN AND REMOVE THE KEY FROM THE IGNITION SWITCH. |
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Remove the inspection hole cover on the clutch housing and check the clutch facing for wear. If necessary, adjust the clutch as follows:
- 1. Disengage the clutch with the hand lever.
- 2. Rotate the clutch, if necessary, to bring the adjusting ring lock within reach.
- 3. Remove the clutch adjusting ring lock assembly from the clutch pressure plate and adjusting ring. Then, while holding the clutch drive shaft to prevent the clutch from turning, turn the clutch adjusting ring counterclockwise and tighten the clutch until the desired pressure on the outer end of the hand lever is obtained.
When properly adjusted, the approximate force required at the outer end of the hand lever to engage the clutch is 60 to 70 pounds (27 to 32 kg). This specified force is applicable only with the hand lever which is furnished with the power take-off. A suitable spring scale may be used to check the force required to engage the clutch.
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THE THRUST LOAD ON THE BRONZE CLUTCH RELEASE BEARING SHOULD BE KEPT AT AN ABSOLUTE MINIMUM. THEREFORE, THE HAND LEVER SHOULD BE POSITIONED ON THE SHAFT AS NEAR THE 12 O'CLOCK OR 6 O'CLOCK POSITION AS POSSIBLE. THE 9 AND 3 O'CLOCK POSITIONS ARE TO BE AVOIDED. |
Changing The Fuel Filter Element
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INADVERTENT STARTING OF THE ENGINE COULD CAUSE PERSONAL INJURY. SHUT THE ENGINE DOWN AND REMOVE THE KEY FROM THE IGNITION SWITCH. |
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- 1. Thoroughly clean the exterior of the filter assembly.
- 2. Holding the filter base, unscrew the setscrew in the center of the filter head and lower the base and filter element. Discard the filter element.
- 3. Thoroughly clean the filter head and base.
- 4. Inspect the sealing rings and replace if damaged in any way.
- 5. Place the base squarely on the bottom of the new filter element and move the element squarely to the filter head so that the top rim of the element is located centrally against the sealing ring in the filter head.
- 6. Hold in this position while the securing setscrew is located and screwed home.
- 7. Prime the fuel system (see page 4-35 for procedures).
Cleaning The Fuel Lift Pump Sediment Chamber
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INADVERTENT STARTING OF THE ENGINE COULD CAUSE PERSONAL INJURY. SHUT THE ENGINE DOWN AND REMOVE THE KEY FROM THE IGNITION SWITCH. DIESEL FUEL IS VOLATILE AND COULD IGNITE OR EXPLODE, CAUSING SERIOUS BURNS AND INJURIES FROM FLYING OBJECTS. NEVER SMOKE OR HAVE AN OPEN FLAME WHILE WORKING ON THE FUEL SYSTEM. |
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- 1. Remove the fuel lift pump cover and pulsator diaphragm.
- 2. Clean the sediment chamber and check the diaphagm condition.
- 3. Refit the diaphragm and cover on the pump body. Tighten the securing screw just sufficiently to make a tight sealing joint.
- 4. Prime the fuel system (see below for procedures).
Priming The Fuel System
The air must be vented from the fuel system whenever any part of the system between the fuel tank and injection pump has been disconnected for any reason or when the system has been emptied of fuel.
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DIESEL FUEL IS VOLATILE AND COULD IGNITE OR EXPLODE, CAUSING SERIOUS BURNS AND INJURIES FROM FLYING OBJECTS. NEVER SMOKE OR HAVE AN OPEN FLAME WHILE WORKING ON THE FUEL SYSTEM. |
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| NOTICE |
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NO ATTEMPT MUST BE MADE TO START THE ENGINE UNTIL THE INJECTION PUMP HAS BEEN FILLED AND PRIMED AS SERIOUS DAMAGE CAN BE CAUSED TO THE PUMP DUE TO LACK OF LUBRIAVSION. |
- 1. Slacken the air vent valve on the front side of the governor control cover (mechanical governor).
- 2. Slacken the vent valve fitted on one of the two hydraulic head locking screws.
- 3. Operate the priming lever on the fuel lift pump and when fuel, free from air bubbles, issues from each venting point, tighten the screws in the following order:
- a. Head locking screw vent valve.
- b. Governor cover vent valve.
- 4. Slacken the pipe union nut at the pump inlet, operate the priming device and retighten when fuel oil, free from air bubbles, issues from around the threads.
- 5. Slacken the unions at the injector ends of two of the high pressure pipes.
- 6. Set the throttle control at the fully open position.
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WORKING NEAR THE ENGINE WHILE THE ENGINE IS RUNNING COULD RESULT IN PERSONAL INJURY. A PERSON SHOULD BE AT THE CONTROLS AT ALL TIMES SO THE ENGINE CAN BE SHUT DOWN IMMEDIATELY IF SOMETHING GOES WRONG. |
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- 7. Turn the engine until fuel oil, free from air bubbles, issues from both fuel pipes.
- 8. Tighten the unions on both fuel pipes, and the engine is ready for starting. If the fuel has been drained from the thermostart feed pipe, the pipe must be disconnected at the thermostart and all air bled from the pipe before the thermostart is operated.