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MAINTENANCE
D1.8 D1.8
VANTAGE® 500
COOLING SYSTEM
The cooling system of the Deutz engine needs to be
checked and cleaned periodically. Consult the engine
Operation Manual for the proper frequency and proce-
dure.
COOLING BLOWER BELT: The following procedure
should be followed to replace the cooling blower belt:
1. Allow the machine to cool.
2. Unfasten and slide the battery holder out from the
welder.
3. Disconnect the negative battery cable.
4. Remove the engine case side.
5. Loosen the air cleaner hose clamp and detach the
hose.
6. Remove the engine end panel with air box and air
cleaner attached for access to the engine.
7. See Figure D1.4. Loosen the alternator mounting
bolts (1, 2, 3) and rotate the alternator toward the
engine.
8. Remove the old cooling blower belt and install a
new one.
9 Push outward on the alternator (4) and adjust the
cold belt tension to 63-73 lbs (10-15 mm maximum
deflection) midway between any two pulleys.
Tighten bolts (1), (2), (3).
10. Reinstall the air cleaner hose, engine case side,
and engine end panel. Reattach the negative bat-
tery cable. Slide in and refasten the battery holder.
11. Check the cooling blower belt tension after 100
hours of operation. (Follow steps 1-6; 9 and 10.)
FIGURE D1.4 – COOLING BLOWER BELT REPLACEMENT AND ADJUSTING
1
2
4
3
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