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At temperatures below 0 °C, winter-grade fuel

should be used or parafin added to the fuel well

in advance.

4.1.4. Mechanical oil pressure

monitor

(optional extra)

The mechanical oil pressure monitor should be

activated:

• when first filling, or after running the fuel tank

dry.

• if engine shut down automatically because lu-

bricating oil supply was inadequate.

• after freeing it by turning at low temperatures

(Chapter 4.2.4.)

• after replacing the fuel filter, Chapter 5.4.1.

– Add fuel, chap. 4.1.3.

– Check engine oil level, chap. 5.2.1.

– To activate the monitor, press lever „1“ for

approx. 15 seconds.

– If the engine has a full capsule, press pin „1“

for app. 15 seconds.

– If the engine has a fuel feed pump, operate its

lever for several strokes at the same time

(Figs. 9 and 10).

– Re-assemble all parts repositioned or re-

moved. Check that capsule elements make a

good seal.

2392 / 12

Lowest ambient

temperature when

starting, in °C

Paraffin content for:

Summer Winter

fuel fuel

0 up to –10 20 % –

–10 up to –15 30 % –

–15 up to –20 50 % 20 %

–20 up to –30 – 50 %

Hatz 1D81. User Manual

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