27MAINTENANCE
5.2 BOLT TORQUE GUIDELINES
5.2.1 INCH FASTENERS
INCH FASTENERS TORQUE
Size
SAE Grade 5 (-lb) SAE Grade 8 (-lb)
Dry Oiled Dry Oiled
1
4–20
8 6 12 9
5
16–18
17 13 25 18
3
8–16
30 23 45 35
7
16–14
50 35 70 55
1
2–13
75 55 110 80
9
16–12
110 80 150 110
5
8–11
150 110 220 170
3
4–10
260 200 380 280
5.2.2 TORQUE SEQUENCE
TYPICAL BOLT TORQUE PATTERNS
Circular Pattern (8-Bolt) Square Pattern Flange Pattern
5.3 COMPRESSOR LUBRICATION
Change oil at least once a year, even if the normal oil change period in hours has not yet been reached.
CAUTION! Never mix synthetic lubricants with hydrocarbon lubricants. Never mix synthetic lubricants
Contamination of non-detergent mineral oils with traces of ATF, or detergent motor oils, may lead to
variety of additives in the blending process to enhance lubrication, product life and performance. Mixing
Environmental conditions in the area of compressor operation such as the presence of reactive gases or
vapors in the air may lead to chemical changes and premature degradation of the lubricant. The useful life of
encouraged to closely monitor the lubricant condition and to participate in an oil analysis program with the
lubricants, contact Sullivan-Palatek for a recommendation.
5.3.1 CHECK
The oil level should be checked daily.
1. Shut down the compressor (or check before the compressor is turned on).
2.
3.
4. While the compressor is running, the oil should be visible in the sight glass.
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