Jeep Cherokee 1977, Owner'S Manual

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conditioning controls set for maximum cooling.
2. If bubbles appear constantly, this indicates an under­
charge of refrigerant (Freon-12), in which case see your
Jeep dealer for service.
3. If no bubbles are observed, the system is either fully
charged or completely depleted of refrigerant, in which
case, you have no cool air output.
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Sight GlaH
Locatlon­
CherokH-WagonHr
4. Determine which of the above two conditions is present,
as follows:
• Have a helper cycle the system on and off by alter­
nately turning the FAN (TEMP knob on CJ vehicles)
blower knob from OFF to HI.
• Observe the sight glass. If a short spurt of bubbles
appears when the knob is turned from the OFF position
to HI then disappears, the system Is charged.
• If no bubbles are observed during the on-and-off cycle.
then there is no refrigerant, and It will be necessary to
see your Jeep dealer for service.
Adjustments
Drive Belts
Tension and condition of belts should be checked every
15,000 miles for CJ, Cherokee, Wagoneer, and Truck models.
If a belt appears to be badly worn, cracked or frayed, 1t should
be replaced.
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