Fischer Panda MINI Generator Set

⚠ Switch off all load during work.

Tools: Two 14 mm spanners, Voltmeter TRMS 300 V AC

1. Disconnect electrical supply line to actuator.
2. Loosen max speed lock nut with two 14 mm spanners.
3. Connect voltmeter (TRMS, 300 V AC range) to AC outlet between 4 and 1.
4. Ensure no electrical load is connected.
5. Start generator.
6. Increase speed by turning spiral spindle manually until voltmeter shows 260 V.
7. Turn limit nut tight to keep speed setting.
8. Secure limit nut with lock nut.
9. Check voltage limited to max 260 V without load.
10. Re-adjust if necessary.

Tools: Spanners, Voltmeter

1. Loosen minimum speed locking and adjusting nuts.
2. Ensure no electrical load is connected.
3. Start generator.
4. Decrease speed by turning actuator spindle manually until voltmeter shows 200 V.
5. Tighten both nuts.
6. Check lower voltage limited to min 200 V without load.
7. Re-adjust if necessary.

⚠ Engine must be completely cold.

Tools: 22 mm spanner, 10 mm spanner, 11 mm spanner, Screwdriver, Feeler gauge

1. Ensure engine is completely cold.
2. Remove valve cover with 10 mm spanner.
3. Turn crankshaft pulley with 22 mm spanner until valve to be adjusted is closed and gap maximum.
4. Check valve gap with feeler gauge; gap should be 0.145 to 0.185 mm.
5. If adjustment needed, release locknut with 11 mm spanner.
6. Adjust gap with screwdriver and retighten locknut.
7. Recheck clearance and repeat if necessary.
8. Repeat for other valves.
9. Replace valve cover gasket and valve cover; tighten to 3.9 to 5.9 Nm.

⚠ Discharge capacitors before touching.

Tools: Multimeter with capacitor measuring

1. Ensure capacitors are discharged.
2. Visually check for dielectric leaks or swelling.
3. Set multimeter to continuity/pass.
4. Touch test prods to capacitor contacts; expect short beep from charge transfer.
5. Reverse prods; expect short beep again.
6. If steady sound or no sound, replace capacitor.
7. Use capacity measuring instrument to verify imprinted capacity.

Tools: Low impedance measuring instrument

1. Use instrument suitable for low impedance.
2. Short test prods and confirm 0.00 ohms.
3. Separate prods and confirm overflow.
4. Measure resistance within individual windings.
5. Compare values; large deviations indicate coil short-circuit.

1. Feel cooling water in-flow line at internal cooling water pump.
2. Feel cooling water return pipe at exhaust elbow outlet or heat exchanger inlet.
3. Temperature difference between in-flow and return should be approx 10 degrees.

Tools: Spanner

1. Connect positive battery cable directly to solenoid switch of starter.
2. Connect negative battery cable to engine foot.
3. Use connecting line cross-section 25 mm².

⚠ During de-aeration check coolant is circulating; overheating possible if air bubbles remain.

Tools: Spanner

1. Open cooling water cap on water-cooled exhaust elbow union.
2. Open de-aerating screw on thermostat housing.
3. Open de-aerating screw on internal cooling water pump pipe socket.
4. Fill prepared coolant mixture slowly at filler neck until coolant leaks at thermostat housing de-aerating screw.
5. Screw cooling water cap firmly and close both de-aerating screws.
6. Fill external expansion tank to max mark.
7. Start generator and run max 2 minutes without load.
8. Stop generator and wait about 1 minute for air to rise.
9. Open all three ventilation points until cooling water exits; close immediately.
10. Repeat de-aeration until no air exits.
11. Repeat de-aeration during next few days.

Tools: Spanner

1. Align speed sensor tip with tip of gear tooth.
2. Screw in until it touches tooth tip; do not screw into tooth root.
3. Turn screw anticlockwise by half a turn (0.3 to 0.8 mm).
4. Hold with counter nut.

⚠ Avoid fuel spill in sound cover.

Tools: Spanner

1. Switch Stand by switch ON.
2. Push and hold failure bypass switch (or fuel pump switch S3).
3. Run electric fuel pump audibly 3 to 4 minutes.
4. Unscrew bleeding screw of fuel solenoid valve while holding switch.
5. Place cloth under connection to catch fuel.
6. Close bleeding screw when fuel runs without bubbles.
7. Release switch.
8. Start unit with Run/Stop button.
9. If unit does not start, loosen pipe union nuts at injection nozzles and retry.
10. Tighten pipe union nuts after start.
11. Switch Stand by OFF.

⚠ Close water cock before cleaning.

1. Close water cock.
2. Release raw water filter from arrears.
3. Beat filter basket clean.
4. If cover leaks, check sealing ring between caps and filter holder; do not seal with adhesive.

⚠ Do not open cooling water pump de-aerating screw while generator runs.

Tools: Spanner

1. Ensure generator is stagnant.
2. Check external expansion tank connected and at least 600 mm above exhaust elbow union.
3. Open de-aerating screw at cooling water pump.
4. Open de-aerating screw at thermostat housing.
5. Fill coolant at filler neck until level stops falling.
6. Close filler cap and de-aerating screws.
7. Start generator and run 5 minutes.
8. Repeat de-aeration two to three times.
9. Refill external expansion tank only to max 20% cold.
10. Repeat after several days.