Hertz HSC serie Bedienungshandbuch Seite 55

BELT REPLACEMENT AND ALIGNMENT
STRETCH
BOLT
LIFTER
Perform the following procedures for belt replacement
Stop the compressor and de energize it from main switch.
By loosening the "HOLDER "bolts in the figure; allow the loosening of the "LIFTER".
Allow the loosening of belt by loosening the two "STRECH BOLT".
By rotating the pulley slowly, remove the belts. Make sure that your finger does no get stuck
between the belt and pulley.
Place the original dimensioned new belts by slowly turning.
Make sure that the belt does not get upside down while mounting.
There are same amount of channel on belts and pulley. Observe that the belt fully seats on the
channels that are reciprocally at same level on both pulleys.
By tightening the two "STRECH BOLT" in balance ensure that belt is strained.
Check that the motor and screw pulley front faces are in the same direction in the horizontal and
vertical positions.
Finish the adjustment by tightening the "HOLDER" bolts.
Recheck all screw and bolts against the possibility o being looseness.
Reenergize the compressor and operate it. Check the vibration of belt during operation; if the belt is
vibrating, it means that it is loose or the pulleys are not in the same direction. Perform the pulleys
alignment again. Do not forget that in case the pulley alignment is not properly performed the belt
life will be very short and together with this, it will cause vibration and similar reasons; as a
consequence the compressor may be damaged.
CLEANING OF COOLER
For keeping the cooler clean, you should not hinder the cleaning of the panel filter.
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As the cooling air passes between the cells of the cooler, small amount of dust goes between the cooler
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cells and this start to block the cells. Clean this by spraying compressed air between the cells from the
opposite of cooler (from outside to inside).
When the dust between the cells mixes with oil, it may get hardened by sticking. In this case clean this
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by spraying an industrial cleaner between the cooler cells. For performing this, if necessary remove the
cooler.
HOLDER
54
HOLDER
STRETCH
BOLT