Chevrolet B7 2001 Owner's Manual page 182

72,000 Miles (120 000 km) (Continued)
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Hydraulic parking brake service (or every 6 months,
whichever occurs first). (8)
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Engine drive belts service (or every 12 months,
whichever occurs first). (18)
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Clutch pedal free travel service. (10)
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Thermostatically controlled engine cooling
fan service. (4)(20)
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Shields and underhood insulation service. (4)(5)(21)
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Air intake system service (or every 24 months,
whichever occurs first). (4)(5)(24)
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Fuel tank, fuel cap and fuel lines service (or every
72 months, whichever occurs first). (3)(30)
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EGR system inspection (or every 72 months,
whichever occurs first). (3)(31)
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Evaporative Control System Service (if equipped)
(or every 24 months, whichever occurs first). (3)(26)
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Rear axle air shift motor service. (11)
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Check air brake relay valve operation and check
for leaks (or every month, or every 300 hours,
whichever occurs first).
5-14
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Clean air brake application valve (or every 3 months,
or every 300 hours, whichever occurs first);
lubricate linkage.
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Air brake chamber service (or every 2 months,
whichever occurs first). (41)
75,000 Miles (125 000 km)
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Check Oil Life Monitor. If engine oil and filter
are changed, reset monitor. See "Engine Oil"
in the Index. (3)(9)
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Check fluid levels (or every 3 months,
whichever occurs first). (1)(2)(6)
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Steering system service. (13)
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Front and rear suspension service. (14)
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Spring to
bolts service. (16)
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Exhaust system service (or every 6 months,
[
whichever occurs first). (3)(4)(17)
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Air brake service (or every 6 months,
whichever occurs first). (39)
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axle U bolts and shackle