Volvo Penta TAD520GE Engine

⚠ Wear safety glasses when removing or installing force fitted parts.

Tools: Screwdriver or standard adjusting tool, Jack stands

1. Place trailer on jack stands on secure level ground.
2. Check the wheel and drum for free rotation.
3. Remove adjusting hole cover from the adjusting slot at bottom of backing plate.
4. Rotate the star wheel of the adjuster to expand the brake shoes.
5. Adjust until lining pressed against drum makes wheel difficult to turn.
6. Rotate star wheel opposite direction until wheel rotates freely with slight lining drag.
7. Replace adjusting hole cover and lower trailer to ground; repeat on remaining brakes.

⚠ NEVER use a pneumatic air gun to tighten wheel lug nuts.

Tools: Torque wrench

1. Start all wheel lug nuts by hand.
2. Torque all lug nuts in sequence; do not torque all the way down.
3. Tighten each lug nut in 3 separate passes as defined by Table 18.
4. After first road use, retorque all lug nuts in sequence.
5. Check all wheel lug nuts periodically.

⚠ Never place jumper plates on the voltage change-over board while the generator is in operation.

1. Jumper the voltage change-over board for 240V operation.
2. Connect the load wires to the UVWO terminals.
3. Turn voltage regulator knob clockwise to increase, counterclockwise to decrease voltage.

⚠ Never place jumper plates on the voltage change-over board while the generator is in operation.

1. Jumper the voltage change-over board for 480V operation.
2. Use 6 jumper plates in 3 different positions; every jumper plate must be used.
3. Connect the load wires to the UVWO terminals.

⚠ Consult a licensed electrician before connecting generator to a building's electrical system.

1. Use copper 10 AWG (5.3 mm2) or larger ground wire.
2. Use aluminum 8 AWG (8.4 mm2) or larger ground wire.
3. Connect ground cable between lock washer and nut on generator.
4. Tighten nut fully and connect other end to earth ground.
5. Bury earth ground rod minimum 8 ft into ground (NEC 250-52(c)).

⚠ Removing the radiator cap while the engine is hot will cause boiling water to gush out, causing severe scalding.

1. Add coolant day-to-day from the recovery tank.
2. Do not remove the radiator cap until the unit has completely cooled.
3. Keep coolant level in recovery tank between H and L markings.

⚠ Incorrect battery cable connection will cause electrical damage to the generator.

1. Place MPEC control switch in OFF/RESET position before connecting battery.
2. Connect red cable to positive battery terminal.
3. Connect black cable to negative battery terminal.
4. Apply battery terminal treatment compound around both terminals.
5. Disconnect negative terminal FIRST and reconnect negative terminal LAST.

1. Remove dust or water in the strainer cap and wash it in gasoline.
2. Securely fasten the fuel strainer cap so fuel will not leak.
3. Check the fuel strainer every 200 hours or once a month.

⚠ Cleaning inside the machine is dangerous; clean only with engine off and negative battery terminal disconnected.

Tools: Compressed air

1. Turn engine off and disconnect the negative battery terminal.
2. Periodically clean radiator fins with compressed air.

⚠ Removing the oil drain plug while the engine is hot can cause hot oil to gush out.

1. Make sure the generator is level.
2. Verify oil level is between the two notches on the dipstick.
3. If oil is not clean, drain by removing the oil drain plug; oil should be warm.
4. Refill crankcase through filler hole with specified oil; do not overfill.

⚠ Never place hands near the belts or fan while the generator set is running.

1. Inspect the fan belt for damage and wear.
2. Adjust belt in accordance with the VOLVO Engine Owner's Manual.
3. Belt tension is proper if it bends 10 to 15 mm when depressed with the thumb.

⚠ Allow engine to cool when flushing radiator; hot coolant can cause severe burns.

⚠ DO NOT remove radiator cap until unit has completely cooled.

1. Open both cocks at crankcase side and lower radiator and drain coolant.
2. Open radiator cap while draining.
3. Remove the overflow tank and drain it.
4. Check hoses for softening and kinks; check clamps for leakage.
5. Flush radiator with clean tap water until rust and dirt are removed.
6. Do not clean radiator core with objects such as a screwdriver.
7. Tighten both cocks and replace the overflow tank.
8. Replace with coolant recommended by engine manufacturer and close cap tightly.